diff --git a/Src/Client/Abstract.hpp b/Src/Client/Abstract.hpp
index 76f3864..1a78ec6 100644
--- a/Src/Client/Abstract.hpp
+++ b/Src/Client/Abstract.hpp
@@ -43,9 +43,12 @@ struct VoxelCube {
     Pos::bvec256u Left, Size;
 };
 
-struct Node {
-    DefNodeId_t NodeId;
-    uint8_t Rotate : 6;
+union Node {
+    struct {
+        DefNodeId_t NodeId : 24, Meta : 8;
+    };
+
+    DefNodeId_t Data;
 };
 
 // 16 метров ребро
@@ -54,7 +57,7 @@ struct Chunk {
     // Кубы вокселей в чанке
     std::vector<VoxelCube> Voxels;
     // Ноды
-    std::unordered_map<Pos::bvec16u, Node> Nodes;
+    Node Nodes[16][16][16];
     // Ограничения прохождения света, идущего от солнца (от верха карты до верхней плоскости чанка)
     // LightPrism Lights[16][16];
 };
@@ -86,7 +89,7 @@ public:
     virtual void onContentDefinesLost(std::unordered_map<EnumDefContent, std::vector<ResourceId_t>>) = 0;
 
     // Сообщаем об изменившихся чанках
-    virtual void onChunksChange(WorldId_t worldId, const std::unordered_set<Pos::GlobalChunk> &changeOrAddList, const std::unordered_set<Pos::GlobalChunk> &remove) = 0;
+    virtual void onChunksChange(WorldId_t worldId, const std::unordered_set<Pos::GlobalChunk> &changeOrAddList, const std::unordered_set<Pos::GlobalRegion> &remove) = 0;
     // Установить позицию для камеры
     virtual void setCameraPos(WorldId_t worldId, Pos::Object pos, glm::quat quat) = 0;
 
@@ -94,7 +97,7 @@ public:
 };
 
 struct Region {
-    std::unordered_map<Pos::bvec16u, Chunk> Chunks;
+    Chunk Chunks[4][4][4];
 };
 
 struct World {
diff --git a/Src/Client/ServerSession.cpp b/Src/Client/ServerSession.cpp
index 3b3f4ec..914bb17 100644
--- a/Src/Client/ServerSession.cpp
+++ b/Src/Client/ServerSession.cpp
@@ -29,11 +29,23 @@ struct PP_Content_ChunkVoxels : public ParsedPacket {
     {}
 };
 
-struct PP_Content_ChunkRemove : public ParsedPacket {
+struct PP_Content_ChunkNodes : public ParsedPacket {
     WorldId_t Id;
     Pos::GlobalChunk Pos;
+    Node Nodes[16][16][16];
 
-    PP_Content_ChunkRemove(ToClient::L1 l1, uint8_t l2, WorldId_t id, Pos::GlobalChunk pos)
+    PP_Content_ChunkNodes(ToClient::L1 l1, uint8_t l2, WorldId_t id, Pos::GlobalChunk pos, Node* nodes)
+        : ParsedPacket(l1, l2), Id(id), Pos(pos)
+    {
+        std::copy(nodes, nodes+16*16*16, (Node*) Nodes);
+    }
+};
+
+struct PP_Content_RegionRemove : public ParsedPacket {
+    WorldId_t Id;
+    Pos::GlobalRegion Pos;
+
+    PP_Content_RegionRemove(ToClient::L1 l1, uint8_t l2, WorldId_t id, Pos::GlobalRegion pos)
         : ParsedPacket(l1, l2), Id(id), Pos(pos)
     {}
 };
@@ -252,7 +264,7 @@ void ServerSession::atFreeDrawTime(GlobalTime gTime, float dTime) {
     Speed += glm::vec3(0, 1, 0)*float(Keys.SPACE)*mltpl;
 
     {
-        std::unordered_map<WorldId_t, std::tuple<std::unordered_set<Pos::GlobalChunk>, std::unordered_set<Pos::GlobalChunk>>> changeOrAddList_removeList;
+        std::unordered_map<WorldId_t, std::tuple<std::unordered_set<Pos::GlobalChunk>, std::unordered_set<Pos::GlobalRegion>>> changeOrAddList_removeList;
 
         // Пакеты
         ParsedPacket *pack;
@@ -264,19 +276,26 @@ void ServerSession::atFreeDrawTime(GlobalTime gTime, float dTime) {
                     Pos::GlobalRegion rPos = p.Pos >> 2;
                     Pos::bvec4u cPos = p.Pos & 0x3;
 
-                    Data.Worlds[p.Id].Regions[rPos].Chunks[cPos].Voxels = std::move(p.Cubes);
+                    Data.Worlds[p.Id].Regions[rPos].Chunks[cPos.x][cPos.y][cPos.z].Voxels = std::move(p.Cubes);
 
                     auto &pair = changeOrAddList_removeList[p.Id];
                     std::get<0>(pair).insert(p.Pos);
-                } else if(l2 == ToClient::L2Content::RemoveChunk) {
-                    PP_Content_ChunkRemove &p = *dynamic_cast<PP_Content_ChunkRemove*>(pack);
-
+                } else if(l2 == ToClient::L2Content::ChunkNodes) {
+                    PP_Content_ChunkNodes &p = *dynamic_cast<PP_Content_ChunkNodes*>(pack);
                     Pos::GlobalRegion rPos = p.Pos >> 2;
                     Pos::bvec4u cPos = p.Pos & 0x3;
-                    auto &obj = Data.Worlds[p.Id].Regions[rPos].Chunks;
-                    auto iter = obj.find(cPos);
-                    if(iter != obj.end())
-                        obj.erase(iter);
+
+                    Node *nodes = (Node*) Data.Worlds[p.Id].Regions[rPos].Chunks[cPos.x][cPos.y][cPos.z].Nodes;
+                    std::copy((const Node*)p.Nodes, ((const Node*) p.Nodes)+16*16*16, nodes);
+                    auto &pair = changeOrAddList_removeList[p.Id];
+                    std::get<0>(pair).insert(p.Pos);
+                } else if(l2 == ToClient::L2Content::RemoveRegion) {
+                    PP_Content_RegionRemove &p = *dynamic_cast<PP_Content_RegionRemove*>(pack);
+
+                    auto &regions = Data.Worlds[p.Id].Regions;
+                    auto obj = regions.find(p.Pos);
+                    assert(obj != regions.end());
+                    regions.erase(obj);
 
                     auto &pair = changeOrAddList_removeList[p.Id];
                     std::get<1>(pair).insert(p.Pos);
@@ -514,11 +533,6 @@ coro<> ServerSession::rP_Content(Net::AsyncSocket &sock) {
         pos.unpack(co_await sock.read<Pos::GlobalChunk::Pack>());
 
         std::vector<VoxelCube> cubes(co_await sock.read<uint16_t>());
-        uint16_t debugCubesCount = cubes.size();
-        if(debugCubesCount > 1) {
-            int g = 0;
-            g++;
-        }
 
         for(size_t iter = 0; iter < cubes.size(); iter++) {
             VoxelCube &cube = cubes[iter];
@@ -545,19 +559,39 @@ coro<> ServerSession::rP_Content(Net::AsyncSocket &sock) {
     }
 
     case ToClient::L2Content::ChunkNodes:
-    
+    {
+        WorldId_t wcId = co_await sock.read<WorldId_t>();
+        Pos::GlobalChunk pos;
+        pos.unpack(co_await sock.read<Pos::GlobalChunk::Pack>());
+        std::array<Node, 16*16*16> nodes;
+
+        for(Node& node : nodes) {
+            node.Data = co_await sock.read<DefNodeId_t>();
+        }
+
+        PP_Content_ChunkNodes *packet = new PP_Content_ChunkNodes(
+            ToClient::L1::Content,
+            (uint8_t) ToClient::L2Content::ChunkVoxels,
+            wcId,
+            pos,
+            nodes.data()
+        );
+
+        while(!NetInputPackets.push(packet));
+
         co_return;
+    }
     case ToClient::L2Content::ChunkLightPrism:
 
         co_return;
-    case ToClient::L2Content::RemoveChunk: {
+    case ToClient::L2Content::RemoveRegion: {
         WorldId_t wcId = co_await sock.read<uint8_t>();
         Pos::GlobalChunk pos;
-        pos.unpack(co_await sock.read<Pos::GlobalChunk::Pack>());
+        pos.unpack(co_await sock.read<Pos::GlobalRegion::Pack>());
 
-        PP_Content_ChunkRemove *packet = new PP_Content_ChunkRemove(
+        PP_Content_RegionRemove *packet = new PP_Content_RegionRemove(
             ToClient::L1::Content,
-            (uint8_t) ToClient::L2Content::RemoveChunk,
+            (uint8_t) ToClient::L2Content::RemoveRegion,
             wcId,
             pos
         );
diff --git a/Src/Client/Vulkan/VulkanRenderSession.cpp b/Src/Client/Vulkan/VulkanRenderSession.cpp
index a43d777..6603b63 100644
--- a/Src/Client/Vulkan/VulkanRenderSession.cpp
+++ b/Src/Client/Vulkan/VulkanRenderSession.cpp
@@ -611,14 +611,14 @@ void VulkanRenderSession::onContentDefinesLost(std::unordered_map<EnumDefContent
 
 }
 
-void VulkanRenderSession::onChunksChange(WorldId_t worldId, const std::unordered_set<Pos::GlobalChunk> &changeOrAddList, const std::unordered_set<Pos::GlobalChunk> &remove) {
+void VulkanRenderSession::onChunksChange(WorldId_t worldId, const std::unordered_set<Pos::GlobalChunk>& changeOrAddList, const std::unordered_set<Pos::GlobalRegion>& remove) {
 auto &table = External.ChunkVoxelMesh[worldId];
 
     for(Pos::GlobalChunk pos : changeOrAddList) {
         Pos::GlobalRegion rPos = pos >> 4;
         Pos::bvec16u cPos = pos & 0xf;
 
-        const auto &voxels = ServerSession->Data.Worlds[worldId].Regions[rPos].Chunks[cPos].Voxels;
+        const auto &voxels = ServerSession->Data.Worlds[worldId].Regions[rPos].Chunks[cPos.x][cPos.y][cPos.z].Voxels;
 
         if(voxels.empty()) {
             auto iter = table.find(pos);
@@ -639,10 +639,14 @@ auto &table = External.ChunkVoxelMesh[worldId];
         }
     }
 
-    for(Pos::GlobalChunk pos : remove) {
-        auto iter = table.find(pos);
-        if(iter != table.end())
-            table.erase(iter);
+    for(Pos::GlobalRegion pos : remove) {
+        for(int z = 0; z < 4; z++)
+        for(int y = 0; y < 4; y++)
+        for(int x = 0; x < 4; x++) {
+            auto iter = table.find((Pos::GlobalChunk(pos) << 2) + Pos::GlobalChunk(x, y, z));
+            if(iter != table.end())
+                table.erase(iter);
+        }
     }
 
     if(table.empty())
diff --git a/Src/Client/Vulkan/VulkanRenderSession.hpp b/Src/Client/Vulkan/VulkanRenderSession.hpp
index b5ac284..a4145d0 100644
--- a/Src/Client/Vulkan/VulkanRenderSession.hpp
+++ b/Src/Client/Vulkan/VulkanRenderSession.hpp
@@ -155,7 +155,7 @@ public:
     virtual void onBinaryResourceLost(std::unordered_map<EnumBinResource, std::vector<ResourceId_t>>) override;
     virtual void onContentDefinesAdd(std::unordered_map<EnumDefContent, std::unordered_map<ResourceId_t, std::u8string>>) override;
     virtual void onContentDefinesLost(std::unordered_map<EnumDefContent, std::vector<ResourceId_t>>) override;
-    virtual void onChunksChange(WorldId_t worldId, const std::unordered_set<Pos::GlobalChunk> &changeOrAddList, const std::unordered_set<Pos::GlobalChunk> &remove) override;
+    virtual void onChunksChange(WorldId_t worldId, const std::unordered_set<Pos::GlobalChunk>& changeOrAddList, const std::unordered_set<Pos::GlobalRegion>& remove) override;
     virtual void setCameraPos(WorldId_t worldId, Pos::Object pos, glm::quat quat) override;
 
     glm::mat4 calcViewMatrix(glm::quat quat, glm::vec3 camOffset = glm::vec3(0)) {
diff --git a/Src/Common/Abstract.cpp b/Src/Common/Abstract.cpp
new file mode 100644
index 0000000..0bffc87
--- /dev/null
+++ b/Src/Common/Abstract.cpp
@@ -0,0 +1,763 @@
+#include "Abstract.hpp"
+#include <algorithm>
+
+
+
+namespace LV {
+
+
+CompressedVoxels compressVoxels_byte(const std::vector<VoxelCube>& voxels) {
+    std::u8string compressed;
+    std::vector<DefVoxelId_t> defines;
+    DefVoxelId_t maxValue = 0;
+    defines.reserve(voxels.size());
+
+    compressed.push_back(1);
+
+    assert(voxels.size() <= 65535);
+
+    for(const VoxelCube& cube : voxels) {
+        defines.push_back(cube.VoxelId);
+        if(cube.VoxelId > maxValue)
+            maxValue = cube.VoxelId;
+    }
+
+    {
+        std::sort(defines.begin(), defines.end());
+        auto last = std::unique(defines.begin(), defines.end());
+        defines.erase(last, defines.end());
+        defines.shrink_to_fit();
+    }
+
+    // Количество байт на идентификатор в сыром виде
+    uint8_t bytes_raw = std::ceil(std::log2(maxValue)/8);
+    assert(bytes_raw >= 1 && bytes_raw <= 3);
+    // Количество байт без таблицы индексов
+    size_t size_in_raw = (bytes_raw+6)*voxels.size();
+    // Количество байт на индекс
+    uint8_t bytes_per_define = std::ceil(std::log2(defines.size())/8);
+    assert(bytes_per_define == 1 || bytes_per_define == 2);
+    // Количество байт после таблицы индексов
+    size_t size_after_indices = (bytes_per_define+6)*voxels.size();
+    // Размер таблицы индексов
+    size_t indeces_size = 2+bytes_raw*defines.size();
+
+    if(indeces_size+size_after_indices < size_in_raw) {
+        // Выгодней писать с таблицей индексов
+
+        // Индексы, размер идентификатора ключа к таблице, размер значения таблицы
+        compressed.push_back(1 | (bytes_per_define << 1) | (bytes_raw << 2));
+        compressed.push_back(defines.size() & 0xff);
+        compressed.push_back((defines.size() >> 8) & 0xff);
+
+        // Таблица
+        for(DefVoxelId_t id : defines) {
+            compressed.push_back(id & 0xff);
+            if(bytes_raw > 1)
+                compressed.push_back((id >> 8) & 0xff);
+            if(bytes_raw > 2)
+                compressed.push_back((id >> 16) & 0xff);
+        }
+
+        compressed.push_back(voxels.size() & 0xff);
+        compressed.push_back((voxels.size() >> 8) & 0xff);
+
+        for(const VoxelCube& cube : voxels) {
+            size_t index = std::binary_search(defines.begin(), defines.end(), cube.VoxelId);
+            compressed.push_back(index & 0xff);
+            if(bytes_per_define > 1)
+                compressed.push_back((index >> 8) & 0xff);
+            
+            compressed.push_back(cube.Meta);
+            compressed.push_back(cube.Pos.x);
+            compressed.push_back(cube.Pos.y);
+            compressed.push_back(cube.Pos.z);
+            compressed.push_back(cube.Size.x);
+            compressed.push_back(cube.Size.y);
+            compressed.push_back(cube.Size.z);
+        }
+    } else {
+        compressed.push_back(0 | (0 << 1) | (bytes_raw << 2));
+
+        compressed.push_back(voxels.size() & 0xff);
+        compressed.push_back((voxels.size() >> 8) & 0xff);
+
+        for(const VoxelCube& cube : voxels) {
+            compressed.push_back(cube.VoxelId & 0xff);
+            if(bytes_raw > 1)
+                compressed.push_back((cube.VoxelId >> 8) & 0xff);
+            if(bytes_raw > 2)
+                compressed.push_back((cube.VoxelId >> 16) & 0xff);
+            
+            compressed.push_back(cube.Meta);
+            compressed.push_back(cube.Pos.x);
+            compressed.push_back(cube.Pos.y);
+            compressed.push_back(cube.Pos.z);
+            compressed.push_back(cube.Size.x);
+            compressed.push_back(cube.Size.y);
+            compressed.push_back(cube.Size.z);
+        }
+    }
+
+    return {compressed, defines};
+}
+
+CompressedVoxels compressVoxels_bit(const std::vector<VoxelCube>& voxels) {
+    std::vector<DefVoxelId_t> profile;
+    std::vector<DefVoxelId_t> one_byte[7];
+
+    DefVoxelId_t maxValueProfile = 0;
+    DefVoxelId_t maxValues[7] = {0};
+
+    profile.reserve(voxels.size());
+    for(int iter = 0; iter < 7; iter++)
+        one_byte[iter].reserve(voxels.size());
+
+    assert(voxels.size() <= 65535);
+    for(const VoxelCube& cube : voxels) {
+        profile.push_back(cube.VoxelId);
+
+        one_byte[0].push_back(cube.Meta);
+        one_byte[1].push_back(cube.Pos.x);
+        one_byte[2].push_back(cube.Pos.y);
+        one_byte[3].push_back(cube.Pos.z);
+        one_byte[4].push_back(cube.Size.x);
+        one_byte[5].push_back(cube.Size.y);
+        one_byte[6].push_back(cube.Size.z);
+
+        if(cube.VoxelId > maxValueProfile)
+            maxValueProfile = cube.VoxelId;
+        if(cube.Meta > maxValues[0])
+            maxValues[0] = cube.Meta;
+        if(cube.Pos.x > maxValues[1])
+            maxValues[1] = cube.Pos.x;
+        if(cube.Pos.y > maxValues[2])
+            maxValues[2] = cube.Pos.y;
+        if(cube.Pos.z > maxValues[3])
+            maxValues[3] = cube.Pos.z;
+        if(cube.Size.x > maxValues[4])
+            maxValues[4] = cube.Size.x;
+        if(cube.Size.y > maxValues[5])
+            maxValues[5] = cube.Size.y;
+        if(cube.Size.z > maxValues[6])
+            maxValues[6] = cube.Size.z;
+    }
+
+    {
+        std::sort(profile.begin(), profile.end());
+        auto last = std::unique(profile.begin(), profile.end());
+        profile.erase(last, profile.end());
+        profile.shrink_to_fit();
+    }
+
+    for (int iter = 0; iter < 7; iter++) {
+        std::sort(one_byte[iter].begin(), one_byte[iter].end());
+        auto last = std::unique(one_byte[iter].begin(), one_byte[iter].end());
+        one_byte[iter].erase(last, one_byte[iter].end());
+    }
+
+    // Количество бит на идентификатор в сыром виде
+    size_t bits_raw_profile = std::ceil(std::log2(maxValueProfile));
+    assert(bits_raw_profile >= 1 && bits_raw_profile <= 24);
+    size_t bits_index_profile = std::ceil(std::log2(profile.size()));
+    bool indices_profile = 16+bits_raw_profile*profile.size()+bits_index_profile*voxels.size() < bits_raw_profile*voxels.size();
+
+    size_t bits_raw[7];
+    size_t bits_index[7];
+    bool indices[7];
+
+    for(int iter = 0; iter < 7; iter++) {
+        bits_raw[iter] = std::ceil(std::log2(maxValues[iter]));
+        assert(bits_raw[iter] >= 1 && bits_raw[iter] <= 8);
+        bits_index[iter] = std::ceil(std::log2(one_byte[iter].size()));
+    }
+
+    std::vector<bool> buff;
+
+    buff.push_back(indices_profile);
+    for(int iter = 0; iter < 7; iter++)
+        buff.push_back(indices[iter]);
+
+    auto write = [&](size_t value, int count) {
+        for(int iter = 0; iter < count; iter++)
+            buff.push_back((value >> iter) & 0x1);
+    };
+
+    write(0, 8);
+
+    // Таблицы
+    if(indices_profile) {
+        write(profile.size(), 16);
+        write(bits_raw_profile, 5);
+        write(bits_index_profile, 4);
+
+        for(DefNodeId_t id : profile)
+            write(id, bits_raw_profile);
+    } else {
+        write(bits_raw_profile, 5);
+    }
+
+    for(int iter = 0; iter < 7; iter++) {
+        if(indices[iter]) {
+            write(one_byte[iter].size(), 16);
+            write(bits_raw[iter], 3);
+            write(bits_index[iter], 3);
+
+            for(uint8_t id : one_byte[iter])
+                write(id, bits_raw[iter]);
+        } else {
+            write(bits_raw[iter], 3);
+        }
+    }
+
+    // Данные
+
+    write(voxels.size(), 16);
+
+    for(const VoxelCube& cube : voxels) {
+        if(indices_profile)
+            write(std::binary_search(profile.begin(), profile.end(), cube.VoxelId), bits_index_profile);
+        else
+            write(cube.VoxelId, bits_raw_profile);
+
+        for(int iter = 0; iter < 7; iter++) {
+            uint8_t val;
+            if(iter == 0) val = cube.Meta;
+            else if(iter == 1) val = cube.Pos.x;
+            else if(iter == 2) val = cube.Pos.y;
+            else if(iter == 3) val = cube.Pos.z;
+            else if(iter == 4) val = cube.Size.x;
+            else if(iter == 5) val = cube.Size.y;
+            else if(iter == 6) val = cube.Size.z;
+
+            if(indices[iter])
+                write(std::binary_search(one_byte[iter].begin(), one_byte[iter].end(), val), bits_index[iter]);
+            else
+                write(val, bits_raw[iter]);
+        }
+    }
+
+    std::u8string compressed((buff.size()+7)/8, '\0');
+
+    for(int begin = 0, end = compressed.size()*8-buff.size(); begin < end; begin++)
+        compressed.push_back(0);
+
+    for(size_t iter = 0; iter < buff.size(); iter++)
+        compressed[iter / 8] |= (buff[iter] << (iter % 8));
+
+    return {compressed, profile};
+}
+
+CompressedVoxels compressVoxels(const std::vector<VoxelCube>& voxels, bool fast) {
+    if(fast)
+        return compressVoxels_byte(voxels);
+    else
+        return compressVoxels_bit(voxels);
+}
+
+std::vector<VoxelCube> unCompressVoxels_byte(const std::u8string& compressed) {
+    size_t pos = 1;
+
+    auto read = [&]() -> size_t {
+        assert(pos < compressed.size());
+        return compressed[pos++];
+    };
+
+    uint8_t cmd = read();
+
+    if(cmd & 0x1) {
+        // Таблица
+        uint8_t bytes_per_define = (cmd >> 1) & 0x1;
+        uint8_t bytes_raw = (cmd >> 2) & 0x3;
+
+        std::vector<DefVoxelId_t> defines;
+        defines.resize(read() | (read() << 8));
+
+        for(size_t iter = 0; iter < defines.size(); iter++) {
+            DefVoxelId_t id = read();
+            if(bytes_raw > 1)
+                id |= read() << 8;
+            if(bytes_raw > 2)
+                id |= read() << 16;
+        }
+
+        std::vector<VoxelCube> voxels;
+        voxels.resize(read() | (read() << 8));
+
+        for(size_t iter = 0; iter < voxels.size(); iter++) {
+            size_t index = read();
+
+            if(bytes_per_define > 1)
+                index |= read() << 8;
+
+            VoxelCube &cube = voxels[iter];
+
+            assert(index < defines.size());
+
+            cube.VoxelId = defines[index];
+            cube.Meta = read();
+            cube.Pos.x = read();
+            cube.Pos.y = read();
+            cube.Pos.z = read();
+            cube.Size.x = read();
+            cube.Size.y = read();
+            cube.Size.z = read();
+        }
+
+        return voxels;
+    } else {
+        uint8_t bytes_raw = (cmd >> 2) & 0x3;
+
+        std::vector<VoxelCube> voxels;
+        voxels.resize(read() | (read() << 8));
+
+        for(size_t iter = 0; iter < voxels.size(); iter++) {
+            VoxelCube &cube = voxels[iter];
+
+            cube.VoxelId = read();
+            if(bytes_raw > 1)
+                cube.VoxelId |= read() << 8;
+            if(bytes_raw > 2)
+                cube.VoxelId |= read() << 16;
+
+            cube.Meta = read();
+            cube.Pos.x = read();
+            cube.Pos.y = read();
+            cube.Pos.z = read();
+            cube.Size.x = read();
+            cube.Size.y = read();
+            cube.Size.z = read();
+        }
+
+        return voxels;
+    }
+}
+
+std::vector<VoxelCube> unCompressVoxels_bit(const std::u8string& compressed) {
+    size_t pos = 1;
+
+    auto read = [&](int bits) -> size_t {
+        size_t out = 0;
+        for(int iter = 0; iter < bits; iter++, pos++) {
+            assert(pos < compressed.size()*8);
+
+            out |= (compressed[pos / 8] >> (pos % 8)) << iter;
+        }
+
+        return out;
+    };
+
+    bool indices_profile = read(1);
+    bool indices[7];
+    
+    for(int iter = 0; iter < 7; iter++)
+        indices[iter] = read(1);
+
+    std::vector<DefVoxelId_t> profile;
+    std::vector<DefVoxelId_t> one_byte[7];
+    uint8_t bits_raw_profile;
+    uint8_t bits_index_profile;
+    size_t bits_raw[7];
+    size_t bits_index[7];
+
+    // Таблицы
+    if(indices_profile) {
+        profile.resize(read(16));
+        bits_raw_profile = read(5);
+        bits_index_profile = read(4);
+
+        for(size_t iter = 0; iter < profile.size(); iter++)
+            profile[iter] = read(bits_raw_profile);
+    } else {
+        bits_raw_profile = read(5);
+    }
+
+    for(int iter = 0; iter < 7; iter++) {
+        if(indices[iter]) {
+            one_byte[iter].resize(read(16));
+            bits_raw[iter] = read(3);
+            bits_index[iter] = read(3);
+
+            for(size_t iter2 = 0; iter2 < one_byte[iter].size(); iter2++)
+                 one_byte[iter][iter2] = read(bits_raw[iter]);
+        } else {
+            bits_raw[iter] = read(3);
+        }
+    }
+
+    // Данные
+    std::vector<VoxelCube> voxels;
+    voxels.resize(read(16));
+
+    for(size_t iter = 0; iter < voxels.size(); iter++) {
+        VoxelCube &cube = voxels[iter];
+
+        if(indices_profile)
+            cube.VoxelId = profile[read(bits_index_profile)];
+        else
+            cube.VoxelId = read(bits_raw_profile);
+
+        for(int iter = 0; iter < 7; iter++) {
+            uint8_t val;
+
+            if(indices[iter])
+                val = one_byte[iter][read(bits_index[iter])];
+            else
+                val = read(bits_raw[iter]);
+
+            if(iter == 0) cube.Meta = val;
+            else if(iter == 1) cube.Pos.x = val;
+            else if(iter == 2) cube.Pos.y = val;
+            else if(iter == 3) cube.Pos.z = val;
+            else if(iter == 4) cube.Size.x = val;
+            else if(iter == 5) cube.Size.y = val;
+            else if(iter == 6) cube.Size.z = val;
+        }
+    }
+
+    return voxels;
+}
+
+std::vector<VoxelCube> unCompressVoxels(const std::u8string& compressed) {
+    if(compressed.front())
+        return unCompressVoxels_byte(compressed);
+    else
+        return unCompressVoxels_bit(compressed);
+}
+
+
+
+CompressedNodes compressNodes_byte(const Node* nodes) {
+    std::u8string compressed;
+
+    std::vector<DefNodeId_t> profiles;
+
+    profiles.reserve(16*16*16);
+
+    compressed.push_back(1);
+
+    DefNodeId_t maxValueProfile = 0;
+
+    for(size_t iter = 0; iter < 16*16*16; iter++) {
+        const Node &node = nodes[iter];
+
+        profiles.push_back(node.NodeId);
+
+        if(node.NodeId > maxValueProfile)
+            maxValueProfile = node.NodeId;
+    }
+
+    {
+        std::sort(profiles.begin(), profiles.end());
+        auto last = std::unique(profiles.begin(), profiles.end());
+        profiles.erase(last, profiles.end());
+        profiles.shrink_to_fit();
+    }
+
+
+    // Количество байт на идентификатор в сыром виде
+    uint8_t bytes_raw_profile = std::ceil(std::log2(maxValueProfile)/8);
+    assert(bytes_raw_profile >= 1 && bytes_raw_profile <= 3);
+    // Количество байт на индекс
+    uint8_t bytes_indices_profile = std::ceil(std::log2(profiles.size())/8);
+    assert(bytes_indices_profile >= 1 && bytes_indices_profile <= 2);
+
+    bool indices_profile = 3+bytes_raw_profile*profiles.size()+bytes_indices_profile*16*16*16 < bytes_raw_profile*16*16*16;
+
+    compressed.push_back(indices_profile | (bytes_raw_profile << 1) | (bytes_indices_profile << 3));
+    
+    if(indices_profile) {
+        // Таблица
+        compressed.push_back(profiles.size() & 0xff);
+        compressed.push_back((profiles.size() >> 8) & 0xff);
+        compressed.push_back((profiles.size() >> 16) & 0xff);
+
+        for(DefNodeId_t id : profiles) {
+            compressed.push_back(id & 0xff);
+            if(bytes_raw_profile > 1)
+                compressed.push_back((id >> 8) & 0xff);
+            if(bytes_raw_profile > 2)
+                compressed.push_back((id >> 16) & 0xff);
+        }
+
+        // Данные
+        for(size_t iter = 0; iter < 16*16*16; iter++) {
+            const Node &node = nodes[iter];
+
+            size_t index = std::binary_search(profiles.begin(), profiles.end(), node.NodeId);
+            compressed.push_back(index & 0xff);
+            if(bytes_indices_profile > 1)
+                compressed.push_back((index >> 8) & 0xff);
+
+            compressed.push_back(node.Meta);
+        }
+    } else {
+        for(size_t iter = 0; iter < 16*16*16; iter++) {
+            const Node &node = nodes[iter];
+
+            compressed.push_back(node.NodeId & 0xff);
+            if(bytes_raw_profile > 1)
+                compressed.push_back((node.NodeId >> 8) & 0xff);
+            if(bytes_raw_profile > 2)
+                compressed.push_back((node.NodeId >> 8) & 0xff);
+
+            compressed.push_back(node.Meta);
+        }
+    }
+
+    profiles.shrink_to_fit();
+    
+    return {compressed, profiles};
+}
+
+CompressedNodes compressNodes_bit(const Node* nodes) {
+    std::u8string compressed;
+
+    std::vector<DefNodeId_t> profiles;
+    std::vector<DefNodeId_t> meta;
+
+    profiles.reserve(16*16*16);
+    meta.reserve(16*16*16);
+
+    compressed.push_back(1);
+
+    DefNodeId_t maxValueProfile = 0,
+        maxValueMeta = 0;
+
+    for(size_t iter = 0; iter < 16*16*16; iter++) {
+        const Node &node = nodes[iter];
+
+        profiles.push_back(node.NodeId);
+        meta.push_back(node.Meta);
+
+        if(node.NodeId > maxValueProfile)
+            maxValueProfile = node.NodeId;
+
+        if(node.Meta > maxValueMeta)
+            maxValueMeta = node.Meta;
+    }
+
+    {
+        std::sort(profiles.begin(), profiles.end());
+        auto last = std::unique(profiles.begin(), profiles.end());
+        profiles.erase(last, profiles.end());
+        profiles.shrink_to_fit();
+    }
+
+    {
+        std::sort(meta.begin(), meta.end());
+        auto last = std::unique(meta.begin(), meta.end());
+        meta.erase(last, meta.end());
+        meta.shrink_to_fit();
+    }
+
+
+    // Количество бит на идентификатор в сыром виде
+    uint8_t bits_raw_profile = std::ceil(std::log2(maxValueProfile));
+    assert(bits_raw_profile >= 1 && bits_raw_profile <= 24);
+    // Количество бит на индекс
+    uint8_t bits_indices_profile = std::ceil(std::log2(profiles.size()));
+    assert(bits_indices_profile >= 1 && bits_indices_profile <= 16);
+
+    bool indices_profile = 3*8+bits_raw_profile*profiles.size()+bits_indices_profile*16*16*16 < bits_raw_profile*16*16*16;
+
+
+    std::vector<bool> buff;
+
+    auto write = [&](size_t value, int count) {
+        for(int iter = 0; iter < count; iter++)
+            buff.push_back((value >> iter) & 0x1);
+    };
+
+
+    write(indices_profile, 1);
+    write(bits_raw_profile, 5);
+    write(bits_indices_profile, 4);
+
+    // Количество бит на идентификатор в сыром виде
+    uint8_t bits_raw_meta = std::ceil(std::log2(maxValueMeta));
+    assert(bits_raw_meta >= 1 && bits_raw_meta <= 8);
+    // Количество бит на индекс
+    uint8_t bits_indices_meta = std::ceil(std::log2(meta.size()));
+    assert(bits_indices_meta >= 1 && bits_indices_meta <= 8);
+
+    bool indices_meta = 3*8+bits_raw_meta*profiles.size()+bits_indices_meta*16*16*16 < bits_raw_meta*16*16*16;
+
+    write(indices_meta, 1);
+    write(bits_raw_meta, 3);
+    write(bits_indices_meta, 3);
+    
+    // Таблицы
+    if(indices_profile) {
+        write(profiles.size(), 12);
+
+        for(DefNodeId_t id : profiles) {
+            write(id, bits_raw_profile);
+        }
+    }
+
+
+    if(indices_meta) {
+        write(meta.size(), 8);
+
+        for(DefNodeId_t id : meta) {
+            write(id, bits_raw_meta);
+        }
+    }
+
+
+    // Данные
+    for(size_t iter = 0; iter < 16*16*16; iter++) {
+        const Node &node = nodes[iter];
+
+        if(indices_profile) {
+            size_t index = std::binary_search(profiles.begin(), profiles.end(), node.NodeId);
+            write(index, bits_indices_profile);
+        } else {
+            write(node.NodeId, bits_raw_profile);
+        }
+
+        if(indices_meta) {
+            size_t index = std::binary_search(meta.begin(), meta.end(), node.Meta);
+            write(index, bits_indices_meta);
+        } else {
+            write(node.Meta, bits_raw_meta);
+        }
+    }
+    
+    return {compressed, profiles};
+}
+
+
+CompressedNodes compressNodes(const Node* nodes, bool fast) {
+    if(fast)
+        return compressNodes_byte(nodes);
+    else
+        return compressNodes_bit(nodes);
+}
+
+void unCompressNodes_byte(const std::u8string& compressed, Node* ptr) {
+    size_t pos = 1;
+
+    auto read = [&]() -> size_t {
+        assert(pos < compressed.size());
+        return compressed[pos++];
+    };
+
+    uint8_t value = read();
+
+    uint8_t bytes_raw_profile = (value >> 1) & 0x3;
+    uint8_t bytes_indices_profile = (value >> 3) & 0x3;
+    bool indices_profile = value & 0x1;
+
+    if(indices_profile) {
+        std::vector<DefNodeId_t> profiles;
+        profiles.resize(read() | (read() << 8) | (read() << 16));
+
+        for(size_t iter = 0; iter < profiles.size(); iter++) {
+            DefNodeId_t id = read();
+
+            if(bytes_raw_profile > 1)
+                id |= read() << 8;
+            if(bytes_raw_profile > 2)
+                id |= read() << 16;
+        }
+
+        for(size_t iter = 0; iter < 16*16*16; iter++) {
+            Node &node = ptr[iter];
+
+            DefNodeId_t index = read();
+            if(bytes_indices_profile > 1)
+                index |= read() << 8;
+
+            node.NodeId = profiles[index];
+            node.Meta = read();
+        }
+    } else {
+        for(size_t iter = 0; iter < 16*16*16; iter++) {
+            Node &node = ptr[iter];
+
+            node.NodeId = read();
+
+            if(bytes_raw_profile > 1)
+                node.NodeId |= read() << 8;
+            if(bytes_raw_profile > 2)
+                node.NodeId |= read() << 16;
+
+            node.Meta = read();
+        }
+    }
+}
+
+void unCompressNodes_bit(const std::u8string& compressed, Node* ptr) {
+    size_t pos = 1;
+
+    auto read = [&](int bits) -> size_t {
+        size_t out = 0;
+        for(int iter = 0; iter < bits; iter++, pos++) {
+            assert(pos < compressed.size()*8);
+
+            out |= (compressed[pos / 8] >> (pos % 8)) << iter;
+        }
+
+        return out;
+    };
+
+    std::vector<DefNodeId_t> meta;
+
+
+    bool indices_profile = read(1);
+    uint8_t bits_raw_profile = read(5);
+    uint8_t bits_indices_profile = read(4);
+
+    bool indices_meta = read(1);
+    uint8_t bits_raw_meta = read(3);
+    uint8_t bits_indices_meta = read(3);
+
+    std::vector<DefNodeId_t> profiles;
+    
+    // Таблицы
+    if(indices_profile) {
+        profiles.resize(read(12));
+
+        for(size_t iter = 0; iter < profiles.size(); iter++) {
+            profiles[iter] = read(bits_raw_profile);
+        }
+    }
+
+
+    if(indices_meta) {
+        meta.resize(read(8));
+
+        for(size_t iter = 0; iter < meta.size(); iter++) {
+            meta[iter] = read(bits_raw_meta);
+        }
+    }
+
+
+    // Данные
+    for(size_t iter = 0; iter < 16*16*16; iter++) {
+        Node &node = ptr[iter];
+
+        if(indices_profile) {
+            node.NodeId = profiles[read(bits_indices_profile)];
+        } else {
+            node.NodeId = read(bits_raw_profile);
+        }
+
+        if(indices_meta) {
+            node.Meta = meta[read(bits_indices_meta)];
+        } else {
+            node.Meta = read(bits_raw_meta);
+        }
+    }
+}
+
+void unCompressNodes(const std::u8string& compressed, Node* ptr) {
+    if(compressed.front())
+        return unCompressNodes_byte(compressed, ptr);
+    else
+        return unCompressNodes_bit(compressed, ptr);
+}
+
+}
\ No newline at end of file
diff --git a/Src/Common/Abstract.hpp b/Src/Common/Abstract.hpp
index aea81b0..93a6678 100644
--- a/Src/Common/Abstract.hpp
+++ b/Src/Common/Abstract.hpp
@@ -1,9 +1,13 @@
 #pragma once
 
+#include "Common/Net.hpp"
+#include <algorithm>
 #include <cstdint>
 #include <glm/ext.hpp>
+#include <initializer_list>
 #include <memory>
 #include <type_traits>
+#include <vector>
 
 
 namespace LV {
@@ -422,6 +426,61 @@ using PortalId_t = ResourceId_t;
 //     uint8_t R : 2, G : 2, B : 2;
 // };
 
+
+
+struct VoxelCube {
+    union {
+        struct {
+            DefVoxelId_t VoxelId : 24, Meta : 8;
+        };
+
+        DefVoxelId_t Data = 0;
+    };
+
+    Pos::bvec256u Pos, Size; // Размер+1, 0 это единичный размер
+
+    auto operator<=>(const VoxelCube& other) const {
+        if (auto cmp = Pos <=> other.Pos; cmp != 0)
+            return cmp;
+
+        if (auto cmp = Size <=> other.Size; cmp != 0)
+            return cmp;
+
+        return Data <=> other.Data;
+    }
+
+    bool operator==(const VoxelCube& other) const {
+        return Pos == other.Pos && Size == other.Size && Data == other.Data;
+    }
+};
+
+struct CompressedVoxels {
+    std::u8string Compressed;
+    // Уникальный сортированный список идентификаторов вокселей
+    std::vector<DefVoxelId_t> Defines;
+};
+
+CompressedVoxels compressVoxels(const std::vector<VoxelCube>& voxels, bool fast = true);
+std::vector<VoxelCube> unCompressVoxels(const std::u8string& compressed);
+
+struct Node {
+    union {
+        struct {
+            DefNodeId_t NodeId : 24, Meta : 8;
+        };
+        DefNodeId_t Data;
+    };
+};
+
+struct CompressedNodes {
+    std::u8string Compressed;
+    // Уникальный сортированный список идентификаторов нод
+    std::vector<DefNodeId_t> Defines;
+};
+
+CompressedNodes compressNodes(const Node* nodes, bool fast = true);
+void unCompressNodes(const std::u8string& compressed, Node* ptr);
+
 }
 
 
diff --git a/Src/Common/Net.hpp b/Src/Common/Net.hpp
index 4578398..40550f5 100644
--- a/Src/Common/Net.hpp
+++ b/Src/Common/Net.hpp
@@ -1,5 +1,8 @@
 #pragma once
 
+// TODO: Всё это надо переписать
+
+
 #include "MemoryPool.hpp"
 #include "Async.hpp"
 #include "TOSLib.hpp"
diff --git a/Src/Server/Abstract.hpp b/Src/Server/Abstract.hpp
index 9982540..954da48 100644
--- a/Src/Server/Abstract.hpp
+++ b/Src/Server/Abstract.hpp
@@ -55,32 +55,6 @@ struct ServerTime {
     uint32_t Seconds : 24, Sub : 8;
 };
 
-struct VoxelCube {
-    union {
-        struct {
-            DefVoxelId_t VoxelId : 24, Meta : 8;
-        };
-
-        DefVoxelId_t Data = 0;
-    };
-
-    Pos::bvec256u Left, Right; // TODO: заменить на позицию и размер
-
-    auto operator<=>(const VoxelCube& other) const {
-        if (auto cmp = Left <=> other.Left; cmp != 0)
-            return cmp;
-
-        if (auto cmp = Right <=> other.Right; cmp != 0)
-            return cmp;
-
-        return Data <=> other.Data;
-    }
-
-    bool operator==(const VoxelCube& other) const {
-        return Left == other.Left && Right == other.Right && Data == other.Data;
-    }
-};
-
 struct VoxelCube_Region {
     union {
         struct {
@@ -107,15 +81,6 @@ struct VoxelCube_Region {
     }
 };
 
-struct Node {
-    union {
-        struct {
-            DefNodeId_t NodeId : 24, Meta : 8;
-        };
-        DefNodeId_t Data;
-    };
-};
-
 struct AABB {
     Pos::Object VecMin, VecMax;
 
@@ -382,8 +347,8 @@ inline void convertChunkVoxelsToRegion(const std::unordered_map<Pos::bvec4u, std
         for (const auto& cube : voxels) {
             regions.push_back({
                 cube.VoxelId, cube.Meta,
-                Pos::bvec1024u(left.x+cube.Left.x, left.y+cube.Left.y, left.z+cube.Left.z),
-                Pos::bvec1024u(left.x+cube.Right.x, left.y+cube.Right.y, left.z+cube.Right.z)
+                Pos::bvec1024u(left.x+cube.Pos.x, left.y+cube.Pos.y, left.z+cube.Pos.z),
+                Pos::bvec1024u(left.x+cube.Pos.x+cube.Size.x, left.y+cube.Pos.y+cube.Size.y, left.z+cube.Pos.z+cube.Size.z)
             });
         }
     }
diff --git a/Src/Server/ContentEventController.cpp b/Src/Server/ContentEventController.cpp
index 71d3ac6..5c0b73f 100644
--- a/Src/Server/ContentEventController.cpp
+++ b/Src/Server/ContentEventController.cpp
@@ -44,60 +44,6 @@ void ContentEventController::onWorldUpdate(WorldId_t worldId, World *worldObj)
     Remote->prepareWorldUpdate(worldId, worldObj);
 }
 
-void ContentEventController::onChunksUpdate_Voxels(WorldId_t worldId, Pos::GlobalRegion regionPos, 
-    const std::unordered_map<Pos::bvec4u, const std::vector<VoxelCube>*>& chunks)
-{
-    auto pWorld = ContentViewState.Regions.find(worldId);
-    if(pWorld == ContentViewState.Regions.end())
-        return;
-
-    if(!std::binary_search(pWorld->second.begin(), pWorld->second.end(), regionPos))
-        return;
-
-    for(auto pChunk : chunks) {
-        Pos::GlobalChunk chunkPos = (Pos::GlobalChunk(regionPos) << 2) + pChunk.first;
-        Remote->prepareChunkUpdate_Voxels(worldId, chunkPos, pChunk.second);
-    }
-}
-
-void ContentEventController::onChunksUpdate_Nodes(WorldId_t worldId, Pos::GlobalRegion regionPos, 
-    const std::unordered_map<Pos::bvec4u, const Node*> &chunks)
-{
-    auto pWorld = ContentViewState.Regions.find(worldId);
-    if(pWorld == ContentViewState.Regions.end())
-        return;
-
-    if(!std::binary_search(pWorld->second.begin(), pWorld->second.end(), regionPos))
-        return;
-
-    for(auto pChunk : chunks) {
-        Pos::GlobalChunk chunkPos = (Pos::GlobalChunk(regionPos) << 2) + Pos::GlobalChunk(pChunk.first);
-        Remote->prepareChunkUpdate_Nodes(worldId, chunkPos, pChunk.second);
-    }
-}
-
-// void ContentEventController::onChunksUpdate_LightPrism(WorldId_t worldId, Pos::GlobalRegion regionPos, 
-//     const std::unordered_map<Pos::bvec4u, const LightPrism*> &chunks)
-// {
-//     auto pWorld = ContentViewState.find(worldId);
-//     if(pWorld == ContentViewState.end())
-//         return;
-
-//     auto pRegion = pWorld->second.find(regionPos);
-//     if(pRegion == pWorld->second.end())
-//         return;
-
-//     const std::bitset<4096> &chunkBitset = pRegion->second;
-
-//     for(auto pChunk : chunks) {
-//         if(!chunkBitset.test(pChunk.first))
-//             continue;
-
-//         Pos::GlobalChunk chunkPos = regionPos.toChunk(pChunk.first);
-//         Remote->prepareChunkUpdate_LightPrism(worldId, chunkPos, pChunk.second);
-//     }
-// }
-
 void ContentEventController::onEntityEnterLost(WorldId_t worldId, Pos::GlobalRegion regionPos, 
     const std::unordered_set<RegionEntityId_t> &enter, const std::unordered_set<RegionEntityId_t> &lost)
 {
diff --git a/Src/Server/ContentEventController.hpp b/Src/Server/ContentEventController.hpp
index 8c50a72..a8a0295 100644
--- a/Src/Server/ContentEventController.hpp
+++ b/Src/Server/ContentEventController.hpp
@@ -151,11 +151,6 @@ public:
     // Фильтровать не отслеживаемые миры
     void onWorldUpdate(WorldId_t worldId, World *worldObj);
 
-    // Нужно фильтровать неотслеживаемые чанки
-    void onChunksUpdate_Voxels(WorldId_t worldId, Pos::GlobalRegion regionPos, const std::unordered_map<Pos::bvec4u, const std::vector<VoxelCube>*> &chunks);
-    void onChunksUpdate_Nodes(WorldId_t worldId, Pos::GlobalRegion regionPos, const std::unordered_map<Pos::bvec4u, const Node*> &chunks);
-    //void onChunksUpdate_LightPrism(WorldId_t worldId, Pos::GlobalRegion regionPos, const std::unordered_map<Pos::bvec4u, const LightPrism*> &chunks);
-
     void onEntityEnterLost(WorldId_t worldId, Pos::GlobalRegion regionPos, const std::unordered_set<RegionEntityId_t> &enter, const std::unordered_set<RegionEntityId_t> &lost);
     void onEntitySwap(ServerEntityId_t prevId, ServerEntityId_t newId);
     void onEntityUpdates(WorldId_t worldId, Pos::GlobalRegion regionPos, const std::unordered_map<RegionEntityId_t, Entity*> &entities);
diff --git a/Src/Server/GameServer.cpp b/Src/Server/GameServer.cpp
index b4a3909..e1f8b78 100644
--- a/Src/Server/GameServer.cpp
+++ b/Src/Server/GameServer.cpp
@@ -11,24 +11,62 @@
 #include <glm/geometric.hpp>
 #include <iterator>
 #include <memory>
+#include <mutex>
 #include <string>
 #include <thread>
 #include <unordered_map>
 #include "SaveBackends/Filesystem.hpp"
 #include "Server/SaveBackend.hpp"
 #include "Server/World.hpp"
+#include "TOSLib.hpp"
 #include "glm/gtc/noise.hpp"
 
 namespace LV::Server {
 
 GameServer::~GameServer() {
     shutdown("on ~GameServer");
+    Backing.NeedShutdown = true;
+    Backing.Symaphore.notify_all();
+
     RunThread.join();
     WorkDeadline.cancel();
     UseLock.wait_no_use();
+
+    Backing.stop();
+
     LOG.info() << "Сервер уничтожен";
 }
 
+void GameServer::Backing_t::run(int id) {
+    LOG.debug() << "Старт фонового потока " << id;
+
+    try {
+        while(true) {
+            {
+                std::unique_lock<std::mutex> lock(Mutex);
+                Symaphore.wait(lock, [&](){ return Run != 0 || NeedShutdown; });
+                if(NeedShutdown) {
+                    LOG.debug() << "Завершение выполнения фонового потока " << id;
+                }
+            }
+
+            // Работа
+
+            {
+                std::unique_lock<std::mutex> lock(Mutex);
+                Run--;
+                Symaphore.notify_all();
+            }
+        }
+    } catch(const std::exception& exc) {
+        std::unique_lock<std::mutex> lock(Mutex);
+        NeedShutdown = true;
+        LOG.error() << "Ошибка выполнения фонового потока " << id << ":\n" << exc.what();
+    }
+
+    Symaphore.notify_all();
+}
+
 static thread_local std::vector<ContentViewCircle> TL_Circles;
 
 std::vector<ContentViewCircle> GameServer::Expanse_t::accumulateContentViewCircles(ContentViewCircle circle, int depth)
@@ -356,6 +394,8 @@ void GameServer::stepConnections() {
         lock->clear();
     }
 
+    Backing.end();
+
     // Отключение игроков
     for(std::unique_ptr<ContentEventController> &cec : Game.CECs) {
         // Убрать отключившихся
@@ -425,7 +465,7 @@ IWorldSaveBackend::TickSyncInfo_Out GameServer::stepDatabaseSync() {
                 auto iterWorld = Expanse.Worlds.find(worldId);
                 assert(iterWorld != Expanse.Worlds.end());
 
-                std::vector<Pos::GlobalRegion> notLoaded = iterWorld->second->onCEC_RegionsEnter(cec.get(), regions);
+                std::vector<Pos::GlobalRegion> notLoaded = iterWorld->second->onCEC_RegionsEnter(cec.get(), regions, worldId);
                 if(!notLoaded.empty()) {
                     // Добавляем к списку на загрузку
                     std::vector<Pos::GlobalRegion> &tl = toDB.Load[worldId];
@@ -483,6 +523,9 @@ void GameServer::stepGeneratorAndLuaAsync(IWorldSaveBackend::TickSyncInfo_Out db
     for(auto& [worldId, regions] : db.NotExisten) {
         auto &r = calculatedNoise[worldId];
         for(Pos::GlobalRegion pos : regions) {
+            if(IsGoingShutdown)
+                break;
+
             r.emplace_back();
             std::get<0>(r.back()) = pos;
             auto &region = std::get<1>(r.back());
@@ -494,11 +537,14 @@ void GameServer::stepGeneratorAndLuaAsync(IWorldSaveBackend::TickSyncInfo_Out db
             for(int z = 0; z < 64; z++)
             for(int y = 0; y < 64; y++)
             for(int x = 0; x < 64; x++, ptr++) {
-                *ptr = glm::perlin(glm::dvec3(posNode.x+x, posNode.y+y, posNode.z+z));
+                *ptr = TOS::genRand(); //glm::perlin(glm::vec3(posNode.x+x, posNode.y+y, posNode.z+z));
             }
         }
     }
 
+    if(IsGoingShutdown)
+        return;
+
     std::unordered_map<WorldId_t, std::vector<std::pair<Pos::GlobalRegion, World::RegionIn>>> toLoadRegions;
 
     // Синхронизация с контроллером асинхронных обработчиков луа
@@ -565,7 +611,7 @@ void GameServer::stepGeneratorAndLuaAsync(IWorldSaveBackend::TickSyncInfo_Out db
 
         iterWorld->second->pushRegions(std::move(regions));
         for(auto& [cec, poses] : toSubscribe) {
-            iterWorld->second->onCEC_RegionsEnter(cec, poses);
+            iterWorld->second->onCEC_RegionsEnter(cec, poses, worldId);
         }
     }
 }
@@ -1068,6 +1114,8 @@ void GameServer::stepSyncContent() {
         full.insert(cec->Remote->pushPreparedPackets());
     }
 
+    Backing.start();
+
     full.uniq();
 
     if(!full.BinTexture.empty())
diff --git a/Src/Server/GameServer.hpp b/Src/Server/GameServer.hpp
index a161d34..ec1ea66 100644
--- a/Src/Server/GameServer.hpp
+++ b/Src/Server/GameServer.hpp
@@ -4,6 +4,7 @@
 #include <Common/Lockable.hpp>
 #include <boost/asio/any_io_executor.hpp>
 #include <boost/asio/io_context.hpp>
+#include <condition_variable>
 #include <filesystem>
 #include "RemoteClient.hpp"
 #include "Server/Abstract.hpp"
@@ -116,12 +117,78 @@ class GameServer : public AsyncObject {
         std::unique_ptr<IModStorageSaveBackend> ModStorage;
     } SaveBackend;
 
+    enum class EnumBackingScenario {
+        ChunksChanges // Сжатие изменённых чанков и отправка клиентам
+    };
+
+    /*
+        Обязательно между тактами
+            После окончания такта пул копирует изменённые чанки 
+            - синхронизация сбора в stepDatabaseSync - 
+            сжимает их и отправляет клиентам
+            - синхронизация в начале stepPlayerProceed -
+            ^ к этому моменту все данные должны быть отправлены
+            Далее при подписании на новые регионы они будут добавлены в пул на обработку
+
+        Генерация шума
+            OpenCL или пул
+
+        Конвертация ресурсов игры, их хранение в кеше и загрузка в память для отправки клиентам
+            io_uring или последовательное чтение
+        
+        Исполнение асинхронного луа
+            Пул для постоянной работы и синхронизации времени с главным потоком
+
+        Сжатие/расжатие регионов в базе
+            Локальный поток должен собирать ключи профилей для базы
+            Остальное внутри базы
+    */
+    struct Backing_t {
+        TOS::Logger LOG = "Backing";
+        bool NeedShutdown = false;
+        std::vector<std::thread> Threads;
+        std::mutex Mutex;
+        std::atomic_int Run = 0;
+        std::condition_variable Symaphore;
+        std::unordered_map<WorldId_t, std::unique_ptr<World>> *Worlds;
+
+        void start() {
+            std::lock_guard<std::mutex> lock(Mutex);
+            Run = Threads.size();
+            Symaphore.notify_all();
+        }
+
+        void end() {
+            std::unique_lock<std::mutex> lock(Mutex);
+            Symaphore.wait(lock, [&](){ return Run == 0 || NeedShutdown; });
+        }
+
+        void stop() {
+            {
+                std::unique_lock<std::mutex> lock(Mutex);
+                NeedShutdown = true;
+                Symaphore.notify_all();
+            }
+
+            for(std::thread& thread : Threads)
+                thread.join();
+        }
+
+        void run(int id);
+    } Backing;
+
 public:
     GameServer(asio::io_context &ioc, fs::path worldPath)
         : AsyncObject(ioc),
           Content(ioc, nullptr, nullptr, nullptr, nullptr, nullptr)
     {
         init(worldPath);
+
+        Backing.Threads.resize(4);
+        Backing.Worlds = &Expanse.Worlds;
+        for(size_t iter = 0; iter < Backing.Threads.size(); iter++) {
+            Backing.Threads[iter] = std::thread(Backing.Run, &Backing, iter);
+        }
     }
 
     virtual ~GameServer();
@@ -211,6 +278,7 @@ private:
     /*
         Обработка запросов двоичных ресурсов и определений
         Отправка пакетов игрокам
+        Запуск задачи ChunksChanges
     */
     void stepSyncContent();
 };
diff --git a/Src/Server/RemoteClient.cpp b/Src/Server/RemoteClient.cpp
index 39dcc52..ffa629c 100644
--- a/Src/Server/RemoteClient.cpp
+++ b/Src/Server/RemoteClient.cpp
@@ -67,9 +67,13 @@ void RemoteClient::shutdown(EnumDisconnect type, const std::string reason) {
     LOG.info() << "Игрок '" << Username << "' отключился " << info;
 }
 
-void RemoteClient::prepareChunkUpdate_Voxels(WorldId_t worldId, Pos::GlobalChunk chunkPos, 
-    const std::vector<VoxelCube>* voxels)
+bool RemoteClient::maybe_prepareChunkUpdate_Voxels(WorldId_t worldId, Pos::GlobalChunk chunkPos, const std::u8string& compressed_voxels,
+    const std::vector<DefVoxelId_t>& uniq_sorted_defines)
 {
+    bool lock = ResUses.RefChunkLock.exchange(1);
+    if(lock)
+        return false;
+
     /*
         Обновить зависимости
         Запросить недостающие
@@ -80,39 +84,23 @@ void RemoteClient::prepareChunkUpdate_Voxels(WorldId_t worldId, Pos::GlobalChunk
         newTypes, /* Новые типы вокселей */
         lostTypes /* Потерянные типы вокселей */;
 
-    // Обновить зависимости вокселей
-    std::vector<DefVoxelId_t> v;
-    if(voxels) {
-        v.reserve(voxels->size());
-        for(const VoxelCube& value : *voxels) {
-            v.push_back(value.VoxelId);
-        }
-
-        std::sort(v.begin(), v.end());
-        auto last = std::unique(v.begin(), v.end());
-        v.erase(last, v.end());
-
-        // В v отсортированный список уникальных вокселей в чанке
-    
-
-        // Отметим использование этих вокселей
-        for(const DefVoxelId_t& id : v) {
-            auto iter = ResUses.DefVoxel.find(id);
-            if(iter == ResUses.DefVoxel.end()) {
-                // Новый тип
-                newTypes.push_back(id);
-                ResUses.DefVoxel[id] = 1;
-            } else {
-                // Увеличиваем счётчик
-                iter->second++;
-            }
+    // Отметим использование этих вокселей
+    for(const DefVoxelId_t& id : uniq_sorted_defines) {
+        auto iter = ResUses.DefVoxel.find(id);
+        if(iter == ResUses.DefVoxel.end()) {
+            // Новый тип
+            newTypes.push_back(id);
+            ResUses.DefVoxel[id] = 1;
+        } else {
+            // Увеличиваем счётчик
+            iter->second++;
         }
     }
 
-    // Исключим зависимости предыдущей версии чанка
     auto iterWorld = ResUses.RefChunk.find(worldId);
-    assert(iterWorld != ResUses.RefChunk.end());
     Pos::bvec4u lChunk = (chunkPos & 0xf);
+
+    if(iterWorld != ResUses.RefChunk.end())
     // Исключим зависимости предыдущей версии чанка
     {
         auto iterRegion = iterWorld->second.find(chunkPos);
@@ -128,9 +116,12 @@ void RemoteClient::prepareChunkUpdate_Voxels(WorldId_t worldId, Pos::GlobalChunk
                 }
             }
         }
+    } else {
+        ResUses.RefChunk[worldId] = {};
+        iterWorld = ResUses.RefChunk.find(worldId);
     }
 
-    iterWorld->second[chunkPos][lChunk.pack()].Voxel = v;
+    iterWorld->second[chunkPos][lChunk.pack()].Voxel = uniq_sorted_defines;
 
     if(!newTypes.empty()) {
         // Добавляем новые типы в запрос
@@ -146,46 +137,44 @@ void RemoteClient::prepareChunkUpdate_Voxels(WorldId_t worldId, Pos::GlobalChunk
         }
     }
 
-    // TODO: отправить чанк
+    checkPacketBorder(1+4+8+2+4+compressed_voxels.size());
+    NextPacket << (uint8_t) ToClient::L1::Content
+        << (uint8_t) ToClient::L2Content::ChunkVoxels
+        << worldId << chunkPos.pack() << uint32_t(compressed_voxels.size());
+    NextPacket.write((const std::byte*) compressed_voxels.data(), compressed_voxels.size());
+
+    ResUses.RefChunkLock.exchange(0);
+    return true;
 }
 
-void RemoteClient::prepareChunkUpdate_Nodes(WorldId_t worldId, Pos::GlobalChunk chunkPos, const Node* nodes) {
+bool RemoteClient::maybe_prepareChunkUpdate_Nodes(WorldId_t worldId, Pos::GlobalChunk chunkPos, const std::u8string& compressed_nodes,
+    const std::vector<DefNodeId_t>& uniq_sorted_defines)
+{
+    bool lock = ResUses.RefChunkLock.exchange(1);
+    if(lock)
+        return false;
+
     std::vector<DefNodeId_t>
         newTypes, /* Новые типы нод */
         lostTypes /* Потерянные типы нод */;
 
-    // Обновить зависимости нод
-    std::vector<DefNodeId_t> n;
-    {
-        n.reserve(16*16*16);
-        for(size_t iter = 0; iter < 16*16*16; iter++) {
-            n.push_back(nodes[iter].NodeId);
-        }
-
-        std::sort(n.begin(), n.end());
-        auto last = std::unique(n.begin(), n.end());
-        n.erase(last, n.end());
-
-        // В n отсортированный список уникальных нод в чанке
-    
-        // Отметим использование этих нод
-        for(const DefNodeId_t& id : n) {
-            auto iter = ResUses.DefNode.find(id);
-            if(iter == ResUses.DefNode.end()) {
-                // Новый тип
-                newTypes.push_back(id);
-                ResUses.DefNode[id] = 1;
-            } else {
-                // Увеличиваем счётчик
-                iter->second++;
-                LOG.debug() << "id = " << id << ' ' << iter->second;
-            }
+    // Отметим использование этих нод
+    for(const DefNodeId_t& id : uniq_sorted_defines) {
+        auto iter = ResUses.DefNode.find(id);
+        if(iter == ResUses.DefNode.end()) {
+            // Новый тип
+            newTypes.push_back(id);
+            ResUses.DefNode[id] = 1;
+        } else {
+            // Увеличиваем счётчик
+            iter->second++;
         }
     }
 
     auto iterWorld = ResUses.RefChunk.find(worldId);
-    assert(iterWorld != ResUses.RefChunk.end());
     Pos::bvec4u lChunk = (chunkPos & 0xf);
+
+    if(iterWorld != ResUses.RefChunk.end())
     // Исключим зависимости предыдущей версии чанка
     {
         auto iterRegion = iterWorld->second.find(chunkPos);
@@ -201,9 +190,12 @@ void RemoteClient::prepareChunkUpdate_Nodes(WorldId_t worldId, Pos::GlobalChunk
                 }
             }
         }
+    } else {
+        ResUses.RefChunk[worldId] = {};
+        iterWorld = ResUses.RefChunk.find(worldId);
     }
 
-    iterWorld->second[chunkPos][lChunk.pack()].Node = n;
+    iterWorld->second[chunkPos][lChunk.pack()].Node = uniq_sorted_defines;
 
     if(!newTypes.empty()) {
         // Добавляем новые типы в запрос
@@ -219,8 +211,14 @@ void RemoteClient::prepareChunkUpdate_Nodes(WorldId_t worldId, Pos::GlobalChunk
         }
     }
 
-    // TODO: отправить чанк
-    LOG.debug() << "Увидели " << chunkPos.x << ' ' << chunkPos.y << ' ' << chunkPos.z;
+    checkPacketBorder(1+4+8+4+compressed_nodes.size());
+    NextPacket << (uint8_t) ToClient::L1::Content
+        << (uint8_t) ToClient::L2Content::ChunkNodes
+        << worldId << chunkPos.pack() << uint32_t(compressed_nodes.size());
+    NextPacket.write((const std::byte*) compressed_nodes.data(), compressed_nodes.size());
+
+    ResUses.RefChunkLock.exchange(0);
+    return true;
 }
 
 void RemoteClient::prepareRegionRemove(WorldId_t worldId, Pos::GlobalRegion regionPos) {
diff --git a/Src/Server/RemoteClient.hpp b/Src/Server/RemoteClient.hpp
index 8b965d3..1716c12 100644
--- a/Src/Server/RemoteClient.hpp
+++ b/Src/Server/RemoteClient.hpp
@@ -7,6 +7,7 @@
 #include "Common/Packets.hpp"
 #include "Server/ContentEventController.hpp"
 #include <Common/Abstract.hpp>
+#include <atomic>
 #include <bitset>
 #include <initializer_list>
 #include <set>
@@ -264,6 +265,7 @@ class RemoteClient {
             std::vector<DefVoxelId_t> Voxel;
             std::vector<DefNodeId_t> Node;
         };
+        std::atomic_bool RefChunkLock = 0;
         std::map<WorldId_t, std::map<Pos::GlobalRegion, std::array<ChunkRef, 4*4*4>>> RefChunk;
         struct RefWorld_t {
             DefWorldId_t Profile;
@@ -314,15 +316,24 @@ public:
         Socket.pushPackets(simplePackets, smartPackets);
     }
 
-    // Функции подготавливают пакеты к отправке
+    /*
+        Сервер собирает изменения миров, сжимает их и раздаёт на отправку игрокам
+    
+    */
 
+    // Функции подготавливают пакеты к отправке
     // Отслеживаемое игроком использование контента
+
+    // maybe созданны для использования в многопотоке, если ресурс сейчас занят вернёт false, потом нужно повторить запрос
     // В зоне видимости добавился чанк или изменились его воксели
-    void prepareChunkUpdate_Voxels(WorldId_t worldId, Pos::GlobalChunk chunkPos, const std::vector<VoxelCube>* voxels);
+    bool maybe_prepareChunkUpdate_Voxels(WorldId_t worldId, Pos::GlobalChunk chunkPos, const std::u8string& compressed_voxels,
+        const std::vector<DefVoxelId_t>& uniq_sorted_defines);
     // В зоне видимости добавился чанк или изменились его ноды
-    void prepareChunkUpdate_Nodes(WorldId_t worldId, Pos::GlobalChunk chunkPos, const Node* nodes);
-    void prepareChunkUpdate_Nodes(WorldId_t worldId, Pos::GlobalChunk chunkPos, const std::unordered_map<Pos::bvec16u, Node> &nodes);
-    //void prepareChunkUpdate_LightPrism(WorldId_t worldId, Pos::GlobalChunk chunkPos, const LightPrism *lights);
+    bool maybe_prepareChunkUpdate_Nodes(WorldId_t worldId, Pos::GlobalChunk chunkPos, const std::u8string& compressed_nodes,
+        const std::vector<DefNodeId_t>& uniq_sorted_defines);
+    // void prepareChunkUpdate_LightPrism(WorldId_t worldId, Pos::GlobalChunk chunkPos, const LightPrism *lights);
+
+
     // Регион удалён из зоны видимости
     void prepareRegionRemove(WorldId_t worldId, Pos::GlobalRegion regionPos);
 
diff --git a/Src/Server/SaveBackends/Filesystem.cpp b/Src/Server/SaveBackends/Filesystem.cpp
index 7458462..749e795 100644
--- a/Src/Server/SaveBackends/Filesystem.cpp
+++ b/Src/Server/SaveBackends/Filesystem.cpp
@@ -33,81 +33,77 @@ public:
         return Dir / worldId / std::to_string(regionPos.x) / std::to_string(regionPos.y) / std::to_string(regionPos.z);
     }
 
-    virtual bool isAsync() { return false; };
-
-    virtual bool isExist(std::string worldId, Pos::GlobalRegion regionPos) {
-        return fs::exists(getPath(worldId, regionPos));
+    virtual TickSyncInfo_Out tickSync(TickSyncInfo_In &&data) override {
+        TickSyncInfo_Out out;
+        out.NotExisten = std::move(data.Load);
+        return out;
     }
 
-    virtual void load(std::string worldId, Pos::GlobalRegion regionPos, SB_Region *data) {
-        std::ifstream fd(getPath(worldId, regionPos));
-        js::object jobj = js::parse(fd).as_object();
+    virtual void changePreloadDistance(uint8_t value) override {
 
-        {
-            js::array &jaVoxels = jobj.at("Voxels").as_array();
-            for(js::value &jvVoxel : jaVoxels) {
-                js::object &joVoxel = jvVoxel.as_object();
-                VoxelCube_Region cube;
-                cube.Data = joVoxel.at("Data").as_uint64();
-                cube.Left.x = joVoxel.at("LeftX").as_uint64();
-                cube.Left.y = joVoxel.at("LeftY").as_uint64();
-                cube.Left.z = joVoxel.at("LeftZ").as_uint64();
-                cube.Right.x = joVoxel.at("RightX").as_uint64();
-                cube.Right.y = joVoxel.at("RightY").as_uint64();
-                cube.Right.z = joVoxel.at("RightZ").as_uint64();
-                data->Voxels.push_back(cube);
-            }
-        }
-
-        {
-            js::object &joVoxelMap = jobj.at("VoxelsMap").as_object();
-            for(js::key_value_pair &jkvp : joVoxelMap) {
-                data->VoxelsMap[std::stoul(jkvp.key())] = jkvp.value().as_string();
-            }
-        }
     }
 
-    virtual void save(std::string worldId, Pos::GlobalRegion regionPos, const SB_Region *data) {
-        js::object jobj;
+    // virtual void load(std::string worldId, Pos::GlobalRegion regionPos, SB_Region *data) {
+    //     std::ifstream fd(getPath(worldId, regionPos));
+    //     js::object jobj = js::parse(fd).as_object();
 
-        {
-            js::array jaVoxels;
-            for(const VoxelCube_Region &cube : data->Voxels) {
-                js::object joVoxel;
-                joVoxel["Data"] = cube.Data;
-                joVoxel["LeftX"] = cube.Left.x;
-                joVoxel["LeftY"] = cube.Left.y;
-                joVoxel["LeftZ"] = cube.Left.z;
-                joVoxel["RightX"] = cube.Right.x;
-                joVoxel["RightY"] = cube.Right.y;
-                joVoxel["RightZ"] = cube.Right.z;
-                jaVoxels.push_back(std::move(joVoxel));
-            }
+    //     {
+    //         js::array &jaVoxels = jobj.at("Voxels").as_array();
+    //         for(js::value &jvVoxel : jaVoxels) {
+    //             js::object &joVoxel = jvVoxel.as_object();
+    //             VoxelCube_Region cube;
+    //             cube.Data = joVoxel.at("Data").as_uint64();
+    //             cube.Left.x = joVoxel.at("LeftX").as_uint64();
+    //             cube.Left.y = joVoxel.at("LeftY").as_uint64();
+    //             cube.Left.z = joVoxel.at("LeftZ").as_uint64();
+    //             cube.Right.x = joVoxel.at("RightX").as_uint64();
+    //             cube.Right.y = joVoxel.at("RightY").as_uint64();
+    //             cube.Right.z = joVoxel.at("RightZ").as_uint64();
+    //             data->Voxels.push_back(cube);
+    //         }
+    //     }
 
-            jobj["Voxels"] = std::move(jaVoxels);
-        }
+    //     {
+    //         js::object &joVoxelMap = jobj.at("VoxelsMap").as_object();
+    //         for(js::key_value_pair &jkvp : joVoxelMap) {
+    //             data->VoxelsMap[std::stoul(jkvp.key())] = jkvp.value().as_string();
+    //         }
+    //     }
+    // }
 
-        {
-            js::object joVoxelMap;
-            for(const auto &pair : data->VoxelsMap) {
-                joVoxelMap[std::to_string(pair.first)] = pair.second;
-            }
+    // virtual void save(std::string worldId, Pos::GlobalRegion regionPos, const SB_Region *data) {
+    //     js::object jobj;
 
-            jobj["VoxelsMap"] = std::move(joVoxelMap);
-        }
+    //     {
+    //         js::array jaVoxels;
+    //         for(const VoxelCube_Region &cube : data->Voxels) {
+    //             js::object joVoxel;
+    //             joVoxel["Data"] = cube.Data;
+    //             joVoxel["LeftX"] = cube.Left.x;
+    //             joVoxel["LeftY"] = cube.Left.y;
+    //             joVoxel["LeftZ"] = cube.Left.z;
+    //             joVoxel["RightX"] = cube.Right.x;
+    //             joVoxel["RightY"] = cube.Right.y;
+    //             joVoxel["RightZ"] = cube.Right.z;
+    //             jaVoxels.push_back(std::move(joVoxel));
+    //         }
 
-        fs::create_directories(getPath(worldId, regionPos).parent_path());
-        std::ofstream fd(getPath(worldId, regionPos));
-        fd << js::serialize(jobj);
-    }
+    //         jobj["Voxels"] = std::move(jaVoxels);
+    //     }
 
-    virtual void remove(std::string worldId, Pos::GlobalRegion regionPos) {
-        fs::remove(getPath(worldId, regionPos));
-    }
+    //     {
+    //         js::object joVoxelMap;
+    //         for(const auto &pair : data->VoxelsMap) {
+    //             joVoxelMap[std::to_string(pair.first)] = pair.second;
+    //         }
 
-    virtual void remove(std::string worldId) {
-        fs::remove_all(Dir / worldId);
-    }
+    //         jobj["VoxelsMap"] = std::move(joVoxelMap);
+    //     }
+
+    //     fs::create_directories(getPath(worldId, regionPos).parent_path());
+    //     std::ofstream fd(getPath(worldId, regionPos));
+    //     fd << js::serialize(jobj);
+    // }
 };
 
 class PSB_Filesystem : public IPlayerSaveBackend {
@@ -163,35 +159,37 @@ public:
 
     virtual bool isAsync() { return false; };
 
-    virtual bool isExist(std::string playerId) {
-        return fs::exists(getPath(playerId));
+    virtual coro<bool> isExist(std::string useranme) override {
+        co_return fs::exists(getPath(useranme));
     }
 
-    virtual void rename(std::string fromPlayerId, std::string toPlayerId) {
-        fs::rename(getPath(fromPlayerId), getPath(toPlayerId));
+    virtual coro<> rename(std::string prevUsername, std::string newUsername) override {
+        fs::rename(getPath(prevUsername), getPath(newUsername));
+        co_return;
     }
 
-    virtual void load(std::string playerId, SB_Auth *data) {
-        std::ifstream fd(getPath(playerId));
+    virtual coro<bool> load(std::string useranme, SB_Auth& data) override {
+        std::ifstream fd(getPath(useranme));
         js::object jobj = js::parse(fd).as_object();
 
-        data->Id = jobj.at("Id").as_uint64();
-        data->PasswordHash = jobj.at("PasswordHash").as_string();
+        data.Id = jobj.at("Id").as_uint64();
+        data.PasswordHash = jobj.at("PasswordHash").as_string();
     }
 
-    virtual void save(std::string playerId, const SB_Auth *data) {
+    virtual coro<> save(std::string playerId, const SB_Auth& data) override {
         js::object jobj;
 
-        jobj["Id"] = data->Id;
-        jobj["PasswordHash"] = data->PasswordHash;
+        jobj["Id"] = data.Id;
+        jobj["PasswordHash"] = data.PasswordHash;
 
         fs::create_directories(getPath(playerId).parent_path());
         std::ofstream fd(getPath(playerId));
         fd << js::serialize(jobj);
     }
 
-    virtual void remove(std::string playerId) {
-        fs::remove(getPath(playerId));
+    virtual coro<> remove(std::string username) override {
+        fs::remove(getPath(username));
+        co_return;
     }
 };
 
diff --git a/Src/Server/World.cpp b/Src/Server/World.cpp
index adcb1ae..7a736f5 100644
--- a/Src/Server/World.cpp
+++ b/Src/Server/World.cpp
@@ -1,4 +1,6 @@
 #include "World.hpp"
+#include "TOSLib.hpp"
+#include <memory>
 
 
 namespace LV::Server {
@@ -14,23 +16,40 @@ World::~World() {
 
 }
 
-void World::onUpdate(GameServer *server, float dtime) {
-    
-}
-
-std::vector<Pos::GlobalRegion> World::onCEC_RegionsEnter(ContentEventController *cec, const std::vector<Pos::GlobalRegion> &enter) {
+std::vector<Pos::GlobalRegion> World::onCEC_RegionsEnter(ContentEventController *cec, const std::vector<Pos::GlobalRegion>& enter, WorldId_t wId) {
     std::vector<Pos::GlobalRegion> out;
+
+    TOS::Logger("Test").debug() << "Start";
     
     for(const Pos::GlobalRegion &pos : enter) {
         auto iterRegion = Regions.find(pos);
         if(iterRegion == Regions.end()) {
             out.push_back(pos);
+            continue;
         }
 
-        iterRegion->second->CECs.push_back(cec);
+        auto &region = *iterRegion->second;
+        region.CECs.push_back(cec);
         // Отправить клиенту информацию о чанках и сущностях
+        std::unordered_map<Pos::bvec4u, const std::vector<VoxelCube>*> voxels;
+        std::unordered_map<Pos::bvec4u, const Node*> nodes;
+
+        for(auto& [key, value] : region.Voxels) {
+            voxels[key] = &value;
+        }
+
+        for(int z = 0; z < 4; z++)
+            for(int y = 0; y < 4; y++)
+                for(int x = 0; x < 4; x++) {
+                    nodes[Pos::bvec4u(x, y, z)] = (const Node*) &region.Nodes[0][0][0][x][y][z];
+                }
+
+        cec->onChunksUpdate_Voxels(wId, pos, voxels);
+        cec->onChunksUpdate_Nodes(wId, pos, nodes);
     }
 
+    TOS::Logger("Test").debug() << "End";
+
     return out;
 }
 
@@ -50,4 +69,26 @@ void World::onCEC_RegionsLost(ContentEventController *cec, const std::vector<Pos
     }
 }
 
+World::SaveUnloadInfo World::onStepDatabaseSync() {
+    return {};
+}
+
+void World::pushRegions(std::vector<std::pair<Pos::GlobalRegion, RegionIn>> regions) {
+    for(auto& [key, value] : regions) {
+        Region &region = *(Regions[key] = std::make_unique<Region>());
+        region.Voxels = std::move(value.Voxels);
+
+        Node *ptr = (Node*) region.Nodes;
+        for(std::array<Node, 16*16*16>& nodes : value.Nodes) {
+            
+            std::copy(nodes.data(), nodes.data()+16*16*16, ptr);
+            ptr += 16*16*16;
+        }
+    }
+}
+
+void World::onUpdate(GameServer *server, float dtime) {
+    
+}
+
 }
\ No newline at end of file
diff --git a/Src/Server/World.hpp b/Src/Server/World.hpp
index 7aedc93..764a4fb 100644
--- a/Src/Server/World.hpp
+++ b/Src/Server/World.hpp
@@ -85,13 +85,13 @@ public:
                         aabbInfo.VecMin.set(axis, aabbInfo.VecMin[axis] & ~0xff00);
                     aabbInfo.VecMax = aabbInfo.VecMin;
 
-                    aabbInfo.VecMin.x |= int(cube.Left.x) << 6;
-                    aabbInfo.VecMin.y |= int(cube.Left.y) << 6;
-                    aabbInfo.VecMin.z |= int(cube.Left.z) << 6;
+                    aabbInfo.VecMin.x |= int(cube.Pos.x) << 6;
+                    aabbInfo.VecMin.y |= int(cube.Pos.y) << 6;
+                    aabbInfo.VecMin.z |= int(cube.Pos.z) << 6;
 
-                    aabbInfo.VecMax.x |= int(cube.Right.x) << 6;
-                    aabbInfo.VecMax.y |= int(cube.Right.y) << 6;
-                    aabbInfo.VecMax.z |= int(cube.Right.z) << 6;
+                    aabbInfo.VecMax.x |= int(cube.Pos.x+cube.Size.x+1) << 6;
+                    aabbInfo.VecMax.y |= int(cube.Pos.y+cube.Size.y+1) << 6;
+                    aabbInfo.VecMax.z |= int(cube.Pos.z+cube.Size.z+1) << 6;
 
                     if(aabb.isCollideWith(aabbInfo)) {
                         aabbInfo = {
@@ -149,8 +149,8 @@ public:
         Возвращает список не загруженных регионов, на которые соответственно игрока не получилось подписать
         При подписи происходит отправка всех чанков и сущностей региона
     */
-    std::vector<Pos::GlobalRegion> onCEC_RegionsEnter(ContentEventController *cec, const std::vector<Pos::GlobalRegion> &enter);
-    void onCEC_RegionsLost(ContentEventController *cec, const std::vector<Pos::GlobalRegion> &lost); 
+    std::vector<Pos::GlobalRegion> onCEC_RegionsEnter(ContentEventController *cec, const std::vector<Pos::GlobalRegion> &enter, WorldId_t wId);
+    void onCEC_RegionsLost(ContentEventController *cec, const std::vector<Pos::GlobalRegion>& lost); 
     struct SaveUnloadInfo {
         std::vector<Pos::GlobalRegion> ToUnload;
         std::vector<std::pair<Pos::GlobalRegion, SB_Region_In>> ToSave;