diff --git a/src/engine.cpp b/src/engine.cpp
index 6bcd2542..a21bd8f7 100644
--- a/src/engine.cpp
+++ b/src/engine.cpp
@@ -261,4 +261,4 @@ EnginePaths* Engine::getPaths() {
 
 std::shared_ptr<Screen> Engine::getScreen() {
     return screen;
-}
\ No newline at end of file
+}
diff --git a/src/files/WorldFiles.cpp b/src/files/WorldFiles.cpp
index 11729085..e2d3a6ad 100644
--- a/src/files/WorldFiles.cpp
+++ b/src/files/WorldFiles.cpp
@@ -559,21 +559,6 @@ bool WorldFiles::readWorldInfo(World* world) {
     return true;
 }
 
-void WorldFiles::writePlayer(std::shared_ptr<Player> player) {
-    files::write_json(getPlayerFile(), player->serialize().release());
-}
-
-bool WorldFiles::readPlayer(std::shared_ptr<Player> player) {
-    fs::path file = getPlayerFile();
-    if (!fs::is_regular_file(file)) {
-        std::cerr << "warning: player.json does not exists" << std::endl;
-        return false;
-    }
-
-    player->deserialize(files::read_json(file).get());
-    return true;
-}
-
 void WorldFiles::addPack(const World* world, const std::string& id) {
     fs::path file = getPacksFile();
     if (!fs::is_regular_file(file)) {
diff --git a/src/files/WorldFiles.h b/src/files/WorldFiles.h
index 3269d4dd..c519c8bc 100644
--- a/src/files/WorldFiles.h
+++ b/src/files/WorldFiles.h
@@ -139,14 +139,9 @@ public:
     chunk_inventories_map fetchInventories(int x, int z);
 
     bool readWorldInfo(World* world);
-    bool readPlayer(std::shared_ptr<Player> player);
 
     void writeRegion(int x, int y, WorldRegion* entry, fs::path file, int layer);
 
-    /// @brief Write player data to world files
-    /// @param player target player
-    void writePlayer(std::shared_ptr<Player> player);
-
     /// @brief Write all unsaved data to world files
     /// @param world target world
     /// @param content world content
@@ -169,4 +164,4 @@ public:
     static const char* WORLD_FILE;
 };
 
-#endif /* FILES_WORLDFILES_H_ */
\ No newline at end of file
+#endif /* FILES_WORLDFILES_H_ */
diff --git a/src/frontend/WorldRenderer.cpp b/src/frontend/WorldRenderer.cpp
index 109de8f5..ed1744ab 100644
--- a/src/frontend/WorldRenderer.cpp
+++ b/src/frontend/WorldRenderer.cpp
@@ -34,9 +34,10 @@
 #include "graphics/Skybox.h"
 #include "graphics/ChunksRenderer.h"
 
-WorldRenderer::WorldRenderer(Engine* engine, LevelFrontend* frontend) 
+WorldRenderer::WorldRenderer(Engine* engine, LevelFrontend* frontend, Player* player) 
     : engine(engine), 
-      level(frontend->getLevel())
+      level(frontend->getLevel()),
+      player(player)
 {
     frustumCulling = std::make_unique<Frustum>();
     lineBatch = std::make_unique<LineBatch>();
@@ -174,7 +175,6 @@ void WorldRenderer::draw(const GfxContext& pctx, Camera* camera, bool hudVisible
         shader->uniform3f("u_cameraPos", camera->position);
         shader->uniform1i("u_cubemap", 1);
         {
-            auto player = level->player;
             auto inventory = player->getInventory();
             ItemStack& stack = inventory->getSlot(player->getChosenSlot());
             ItemDef* item = indices->getItemDef(stack.getItemId());
@@ -191,7 +191,7 @@ void WorldRenderer::draw(const GfxContext& pctx, Camera* camera, bool hudVisible
         skybox->bind();
         atlas->getTexture()->bind();
 
-        drawChunks(level->chunks, camera, shader);
+        drawChunks(level->chunks.get(), camera, shader);
 
         // Selected block
         if (PlayerController::selectedBlockId != -1 && hudVisible){
@@ -213,7 +213,7 @@ void WorldRenderer::draw(const GfxContext& pctx, Camera* camera, bool hudVisible
                 const glm::vec3 center = pos + hitbox.center();
                 const glm::vec3 size = hitbox.size();
                 lineBatch->box(center, size + glm::vec3(0.02), glm::vec4(0.f, 0.f, 0.f, 0.5f));
-                if (level->player->debug) {
+                if (player->debug) {
                     lineBatch->line(point, point+norm*0.5f, glm::vec4(1.0f, 0.0f, 1.0f, 1.0f));
                 }
             }
@@ -222,7 +222,7 @@ void WorldRenderer::draw(const GfxContext& pctx, Camera* camera, bool hudVisible
         skybox->unbind();
     }
 
-    if (hudVisible && level->player->debug) {
+    if (hudVisible && player->debug) {
         GfxContext ctx = pctx.sub();
         ctx.depthTest(true);
 
@@ -230,7 +230,7 @@ void WorldRenderer::draw(const GfxContext& pctx, Camera* camera, bool hudVisible
 
         if (settings.debug.showChunkBorders){
             linesShader->uniformMatrix("u_projview", camera->getProjView());
-            glm::vec3 coord = level->player->camera->position;
+            glm::vec3 coord = player->camera->position;
             if (coord.x < 0) coord.x--;
             if (coord.z < 0) coord.z--;
             int cx = floordiv((int)coord.x, CHUNK_W);
diff --git a/src/frontend/WorldRenderer.h b/src/frontend/WorldRenderer.h
index 289f3b2f..2359f139 100644
--- a/src/frontend/WorldRenderer.h
+++ b/src/frontend/WorldRenderer.h
@@ -14,6 +14,7 @@
 #include "../graphics/GfxContext.h"
 
 class Level;
+class Player;
 class Camera;
 class Batch3D;
 class LineBatch;
@@ -29,6 +30,7 @@ class Skybox;
 class WorldRenderer {
     Engine* engine;
     Level* level;
+    Player* player;
     std::unique_ptr<Frustum> frustumCulling;
     std::unique_ptr<LineBatch> lineBatch;
     std::unique_ptr<ChunksRenderer> renderer;
@@ -37,7 +39,7 @@ class WorldRenderer {
     bool drawChunk(size_t index, Camera* camera, Shader* shader, bool culling);
     void drawChunks(Chunks* chunks, Camera* camera, Shader* shader);
 public:
-    WorldRenderer(Engine* engine, LevelFrontend* frontend);
+    WorldRenderer(Engine* engine, LevelFrontend* frontend, Player* player);
     ~WorldRenderer();
 
     void draw(const GfxContext& context, Camera* camera, bool hudVisible);
diff --git a/src/frontend/graphics/ChunksRenderer.cpp b/src/frontend/graphics/ChunksRenderer.cpp
index fee415fe..6753bca5 100644
--- a/src/frontend/graphics/ChunksRenderer.cpp
+++ b/src/frontend/graphics/ChunksRenderer.cpp
@@ -84,14 +84,14 @@ void ChunksRenderer::threadLoop(int index) {
 }
 
 void ChunksRenderer::process(std::shared_ptr<Chunk> chunk, BlocksRenderer& renderer) {
-    renderer.build(chunk.get(), level->chunksStorage);
+    renderer.build(chunk.get(), level->chunksStorage.get());
 }
 
 std::shared_ptr<Mesh> ChunksRenderer::render(std::shared_ptr<Chunk> chunk, bool important) {
 	chunk->setModified(false);
 
     if (important) {
-        Mesh* mesh = renderer->render(chunk.get(), level->chunksStorage);
+        Mesh* mesh = renderer->render(chunk.get(), level->chunksStorage.get());
         auto sptr = std::shared_ptr<Mesh>(mesh);
         meshes[glm::ivec2(chunk->x, chunk->z)] = sptr;
         return sptr;
diff --git a/src/frontend/hud.cpp b/src/frontend/hud.cpp
index 41584ab3..8ea22a2b 100644
--- a/src/frontend/hud.cpp
+++ b/src/frontend/hud.cpp
@@ -40,6 +40,7 @@
 #include "gui/UINode.h"
 #include "gui/GUI.h"
 #include "ContentGfxCache.h"
+#include "menu/menu.h"
 #include "screens.h"
 #include "WorldRenderer.h"
 #include "BlocksPreview.h"
@@ -122,11 +123,10 @@ std::shared_ptr<UINode> Hud::createDebugPanel(Engine* engine) {
                L" visible: "+std::to_wstring(level->chunks->visible);
     }));
     panel->add(create_label([=](){
-        auto player = level->player;
         auto* indices = level->content->getIndices();
         auto def = indices->getBlockDef(player->selectedVoxel.id);
         std::wstringstream stream;
-        stream << std::hex << level->player->selectedVoxel.states;
+        stream << std::hex << player->selectedVoxel.states;
         if (def) {
             stream << L" (" << util::str2wstr_utf8(def->name) << L")";
         }
@@ -151,19 +151,19 @@ std::shared_ptr<UINode> Hud::createDebugPanel(Engine* engine) {
         // Coord input
         auto box = std::make_shared<TextBox>(L"");
         box->setTextSupplier([=]() {
-            Hitbox* hitbox = level->player->hitbox.get();
+            Hitbox* hitbox = player->hitbox.get();
             return util::to_wstring(hitbox->position[ax], 2);
         });
         box->setTextConsumer([=](std::wstring text) {
             try {
-                glm::vec3 position = level->player->hitbox->position;
+                glm::vec3 position = player->hitbox->position;
                 position[ax] = std::stoi(text);
-                level->player->teleport(position);
+                player->teleport(position);
             } catch (std::invalid_argument& _){
             }
         });
         box->setOnEditStart([=](){
-            Hitbox* hitbox = level->player->hitbox.get();
+            Hitbox* hitbox = player->hitbox.get();
             box->setText(std::to_wstring(int(hitbox->position[ax])));
         });
         box->setSize(glm::vec2(230, 27));
@@ -212,7 +212,6 @@ std::shared_ptr<InventoryView> Hud::createContentAccess() {
     auto level = frontend->getLevel();
     auto content = level->content;
     auto indices = content->getIndices();
-    auto player = level->player;
     auto inventory = player->getInventory();
     
     int itemsCount = indices->countItemDefs();
@@ -239,8 +238,6 @@ std::shared_ptr<InventoryView> Hud::createContentAccess() {
 }
 
 std::shared_ptr<InventoryView> Hud::createHotbar() {
-    auto level = frontend->getLevel();
-    auto player = level->player;
     auto inventory = player->getInventory();
 
     SlotLayout slotLayout(-1, glm::vec2(), false, false, nullptr, nullptr);
@@ -254,10 +251,12 @@ std::shared_ptr<InventoryView> Hud::createHotbar() {
     return view;
 }
 
-Hud::Hud(Engine* engine, LevelFrontend* frontend) 
-    : assets(engine->getAssets()), 
+Hud::Hud(Engine* engine, LevelFrontend* frontend, Player* player) 
+    : engine(engine),
+      assets(engine->getAssets()), 
       gui(engine->getGUI()),
-      frontend(frontend)
+      frontend(frontend),
+      player(player)
 {
     auto menu = gui->getMenu();
 
@@ -335,7 +334,6 @@ void Hud::cleanup() {
 
 void Hud::update(bool visible) {
     auto level = frontend->getLevel();
-    auto player = level->player;
     auto menu = gui->getMenu();
 
     debugPanel->setVisible(player->debug && visible);
@@ -419,8 +417,6 @@ void Hud::update(bool visible) {
  * Show inventory on the screen and turn on inventory mode blocking movement
  */
 void Hud::openInventory() {
-    auto level = frontend->getLevel();
-    auto player = level->player;
     auto inventory = player->getInventory();
 
     inventoryOpen = true;
@@ -472,8 +468,6 @@ void Hud::openPermanent(UiDocument* doc) {
 
     auto invview = std::dynamic_pointer_cast<InventoryView>(root);
     if (invview) {
-        auto level = frontend->getLevel();
-        auto player = level->player;
         auto inventory = player->getInventory();
         invview->bind(inventory, frontend, interaction.get());
     }
@@ -548,9 +542,6 @@ void Hud::remove(std::shared_ptr<UINode> node) {
 }
 
 void Hud::draw(const GfxContext& ctx){
-    auto level = frontend->getLevel();
-    auto player = level->player;
-
     const Viewport& viewport = ctx.getViewport();
     const uint width = viewport.getWidth();
     const uint height = viewport.getHeight();
@@ -568,7 +559,7 @@ void Hud::draw(const GfxContext& ctx){
     hotbarView->setSelected(player->getChosenSlot());
 
     // Crosshair
-    if (!pause && Events::_cursor_locked && !level->player->debug) {
+    if (!pause && Events::_cursor_locked && !player->debug) {
         GfxContext chctx = ctx.sub();
         chctx.blendMode(blendmode::inversion);
         auto texture = assets->getTexture("gui/crosshair");
@@ -583,7 +574,7 @@ void Hud::draw(const GfxContext& ctx){
     }
 
     // Delta-time visualizer
-    if (level->player->debug) {
+    if (player->debug) {
         batch->texture(nullptr);
         const int dmwidth = 256;
         const float dmscale = 4000.0f;
@@ -648,6 +639,7 @@ void Hud::setPause(bool pause) {
     
     auto menu = gui->getMenu();
     if (pause) {
+        menus::create_pause_panel(engine, frontend->getLevel());
         menu->setPage("pause");
     } else {
         menu->reset();
@@ -656,6 +648,6 @@ void Hud::setPause(bool pause) {
     menu->setVisible(pause);
 }
 
-std::shared_ptr<Player> Hud::getPlayer() const {
-    return frontend->getLevel()->player;
+Player* Hud::getPlayer() const {
+    return player;
 }
diff --git a/src/frontend/hud.h b/src/frontend/hud.h
index 02e3e2bb..e9171eeb 100644
--- a/src/frontend/hud.h
+++ b/src/frontend/hud.h
@@ -65,6 +65,7 @@ public:
 };
 
 class Hud {
+    Engine* engine;
     Assets* assets;
 	std::unique_ptr<Camera> uicamera;
 
@@ -84,6 +85,7 @@ class Hud {
     std::shared_ptr<SlotView> grabbedItemView;
 	gui::GUI* gui;
 	LevelFrontend* frontend;
+    Player* player;
 
 	std::vector<HudElement> elements;
 
@@ -98,7 +100,7 @@ class Hud {
 
     void cleanup();
 public:
-	Hud(Engine* engine, LevelFrontend* frontend);
+	Hud(Engine* engine, LevelFrontend* frontend, Player* player);
 	~Hud();
 
 	void update(bool hudVisible);
@@ -118,7 +120,7 @@ public:
 	void remove(HudElement& element);
     void remove(std::shared_ptr<gui::UINode> node);
 
-    std::shared_ptr<Player> getPlayer() const;
+    Player* getPlayer() const;
 };
 
 #endif /* SRC_HUD_H_ */
diff --git a/src/frontend/menu/menu.h b/src/frontend/menu/menu.h
index a5bd6bfa..d1b8b9bf 100644
--- a/src/frontend/menu/menu.h
+++ b/src/frontend/menu/menu.h
@@ -19,4 +19,4 @@ namespace menus {
     void refresh_menus(Engine* engine);
 }
 
-#endif // FRONTEND_MENU_MENU_H_
\ No newline at end of file
+#endif // FRONTEND_MENU_MENU_H_
diff --git a/src/frontend/screens.cpp b/src/frontend/screens.cpp
index c2d761f1..8427c000 100644
--- a/src/frontend/screens.cpp
+++ b/src/frontend/screens.cpp
@@ -87,17 +87,15 @@ void MenuScreen::draw(float delta) {
 
 static bool backlight;
 
-LevelScreen::LevelScreen(Engine* engine, Level* level) : Screen(engine), level(level){
-    menus::create_pause_panel(engine, level);
-    
+LevelScreen::LevelScreen(Engine* engine, Level* level) : Screen(engine) {
     auto& settings = engine->getSettings();
     auto assets = engine->getAssets();
 
     controller = std::make_unique<LevelController>(settings, level);
     frontend = std::make_unique<LevelFrontend>(level, assets);
-    worldRenderer = std::make_unique<WorldRenderer>(engine, frontend.get());
-    hud = std::make_unique<Hud>(engine, frontend.get());
-    
+    worldRenderer = std::make_unique<WorldRenderer>(engine, frontend.get(), controller->getPlayer());
+    hud = std::make_unique<Hud>(engine, frontend.get(), controller->getPlayer());
+
     backlight = settings.graphics.backlight;
 
     animator = std::make_unique<TextureAnimator>();
@@ -119,8 +117,8 @@ LevelScreen::~LevelScreen() {
     std::cout << "-- writing world" << std::endl;
     scripting::on_frontend_close();
     controller->onWorldSave();
-    auto world = level->getWorld();
-    world->write(level.get());
+    auto world = controller->getLevel()->getWorld();
+    world->write(controller->getLevel());
     controller->onWorldQuit();
     engine->getPaths()->setWorldFolder(fs::path());
 }
@@ -134,10 +132,10 @@ void LevelScreen::updateHotkeys() {
         hudVisible = !hudVisible;
     }
     if (Events::jpressed(keycode::F3)) {
-        level->player->debug = !level->player->debug;
+        controller->getPlayer()->debug = !controller->getPlayer()->debug;
     }
     if (Events::jpressed(keycode::F5)) {
-        level->chunks->saveAndClear();
+        controller->getLevel()->chunks->saveAndClear();
     }
 }
 
@@ -153,14 +151,14 @@ void LevelScreen::update(float delta) {
 
     // TODO: subscribe for setting change
     EngineSettings& settings = engine->getSettings();
-    level->player->camera->setFov(glm::radians(settings.camera.fov));
+    controller->getPlayer()->camera->setFov(glm::radians(settings.camera.fov));
     if (settings.graphics.backlight != backlight) {
-        level->chunks->saveAndClear();
+        controller->getLevel()->chunks->saveAndClear();
         backlight = settings.graphics.backlight;
     }
 
     if (!hud->isPause()) {
-        level->world->updateTimers(delta);
+        controller->getLevel()->world->updateTimers(delta);
         animator->update(delta);
     }
     controller->update(delta, !inputLocked, hud->isPause());
@@ -168,7 +166,7 @@ void LevelScreen::update(float delta) {
 }
 
 void LevelScreen::draw(float delta) {
-    auto camera = level->player->currentCamera;
+    auto camera = controller->getPlayer()->currentCamera;
 
     Viewport viewport(Window::width, Window::height);
     GfxContext ctx(nullptr, viewport, batch.get());
@@ -177,12 +175,8 @@ void LevelScreen::draw(float delta) {
 
     if (hudVisible) {
         hud->draw(ctx);
-        if (level->player->debug) {
+        if (controller->getPlayer()->debug) {
             hud->drawDebug(1 / delta);
         }
     }
 }
-
-Level* LevelScreen::getLevel() const {
-    return level.get();
-}
diff --git a/src/frontend/screens.h b/src/frontend/screens.h
index 464b7489..126b736d 100644
--- a/src/frontend/screens.h
+++ b/src/frontend/screens.h
@@ -38,7 +38,6 @@ public:
 };
 
 class LevelScreen : public Screen {
-    std::unique_ptr<Level> level;
     std::unique_ptr<LevelFrontend> frontend;
     std::unique_ptr<Hud> hud;
     std::unique_ptr<WorldRenderer> worldRenderer;
@@ -53,8 +52,6 @@ public:
 
     void update(float delta) override;
     void draw(float delta) override;
-
-    Level* getLevel() const;
 };
 
 #endif // FRONTEND_SCREENS_H_
diff --git a/src/logic/BlocksController.cpp b/src/logic/BlocksController.cpp
index b3d9bfd1..f95e5ac0 100644
--- a/src/logic/BlocksController.cpp
+++ b/src/logic/BlocksController.cpp
@@ -53,8 +53,8 @@ int Clock::getTickId() const {
 
 BlocksController::BlocksController(Level* level, uint padding) 
     : level(level), 
-	  chunks(level->chunks), 
-	  lighting(level->lighting),
+	  chunks(level->chunks.get()), 
+	  lighting(level->lighting.get()),
       randTickClock(20, 3),
       blocksTickClock(20, 1),
       padding(padding) {
diff --git a/src/logic/BlocksController.h b/src/logic/BlocksController.h
index bb837938..00934617 100644
--- a/src/logic/BlocksController.h
+++ b/src/logic/BlocksController.h
@@ -28,6 +28,7 @@ public:
     int getTickId() const;
 };
 
+/* BlocksController manages block updates and block data (aka inventories) */
 class BlocksController {
     Level* level;
 	Chunks* chunks;
diff --git a/src/logic/ChunksController.cpp b/src/logic/ChunksController.cpp
index ed4bc7c8..7eefe0ab 100644
--- a/src/logic/ChunksController.cpp
+++ b/src/logic/ChunksController.cpp
@@ -24,8 +24,8 @@ const uint MIN_SURROUNDING = 9;
 
 ChunksController::ChunksController(Level* level, uint padding) 
     : level(level), 
-	  chunks(level->chunks), 
-	  lighting(level->lighting), 
+	  chunks(level->chunks.get()), 
+	  lighting(level->lighting.get()), 
 	  padding(padding), 
 	  generator(WorldGenerators::createGenerator(level->getWorld()->getGenerator(), level->content)) {
 }
@@ -131,4 +131,4 @@ void ChunksController::createChunk(int x, int z) {
 	}
     chunk->setLoaded(true);
 	chunk->setReady(true);
-}
\ No newline at end of file
+}
diff --git a/src/logic/LevelController.cpp b/src/logic/LevelController.cpp
index 94a82062..4e938dec 100644
--- a/src/logic/LevelController.cpp
+++ b/src/logic/LevelController.cpp
@@ -1,32 +1,32 @@
 #include "LevelController.h"
 #include "../world/Level.h"
-
-#include "PlayerController.h"
-#include "BlocksController.h"
-#include "ChunksController.h"
+#include "../physics/Hitbox.h"
 
 #include "scripting/scripting.h"
 #include "../interfaces/Object.h"
 
 LevelController::LevelController(EngineSettings& settings, Level* level) 
-    : settings(settings), level(level) {
-    blocks = std::make_unique<BlocksController>(level, settings.chunks.padding);
-    chunks = std::make_unique<ChunksController>(level, settings.chunks.padding);
-    player = std::make_unique<PlayerController>(level, settings, blocks.get());
+    : settings(settings), level(level),
+    blocks(std::make_unique<BlocksController>(level, settings.chunks.padding)),
+    chunks(std::make_unique<ChunksController>(level, settings.chunks.padding)),
+    player(std::make_unique<PlayerController>(level, settings, blocks.get())) {
 
     scripting::on_world_load(level, blocks.get());
 }
 
-LevelController::~LevelController() {
-}
-
 void LevelController::update(float delta, bool input, bool pause) {
     player->update(delta, input, pause);
-    level->update();
+	glm::vec3 position = player->getPlayer()->hitbox->position;
+    level->loadMatrix(position.x, position.z, settings.chunks.loadDistance + settings.chunks.padding * 2);
     chunks->update(settings.chunks.loadSpeed);
 
     // erease null pointers
-    level->objects.remove_if([](auto obj) { return obj == nullptr; });
+    level->objects.erase(
+        std::remove_if(
+            level->objects.begin(), level->objects.end(),
+            [](auto obj) { return obj == nullptr; }),
+        level->objects.end()
+    );
     
     if (!pause) {
         // update all objects that needed
@@ -49,3 +49,11 @@ void LevelController::onWorldSave() {
 void LevelController::onWorldQuit() {
     scripting::on_world_quit();
 }
+
+Level* LevelController::getLevel() {
+    return level.get();
+}
+
+Player* LevelController::getPlayer() {
+    return player->getPlayer();
+}
diff --git a/src/logic/LevelController.h b/src/logic/LevelController.h
index bd5ce183..d70d49a0 100644
--- a/src/logic/LevelController.h
+++ b/src/logic/LevelController.h
@@ -4,22 +4,23 @@
 #include <memory>
 #include "../settings.h"
 
+#include "PlayerController.h"
+#include "BlocksController.h"
+#include "ChunksController.h"
+
 class Level;
-class BlocksController;
-class ChunksController;
-class PlayerController;
+class Player;
 
 /* LevelController manages other controllers */
 class LevelController {
     EngineSettings& settings;
-    Level* level;
+    std::unique_ptr<Level> level;
     // Sub-controllers
     std::unique_ptr<BlocksController> blocks;
     std::unique_ptr<ChunksController> chunks;
     std::unique_ptr<PlayerController> player;
 public:
     LevelController(EngineSettings& settings, Level* level);
-    ~LevelController();
 
     /* 
     @param delta time elapsed since the last update
@@ -32,6 +33,9 @@ public:
 
     void onWorldSave();
     void onWorldQuit();
+
+    Level* getLevel();
+    Player* getPlayer();
 };
 
 #endif // LOGIC_LEVEL_CONTROLLER_H_
diff --git a/src/logic/PlayerController.cpp b/src/logic/PlayerController.cpp
index ab44336e..5ff48153 100644
--- a/src/logic/PlayerController.cpp
+++ b/src/logic/PlayerController.cpp
@@ -142,8 +142,8 @@ PlayerController::PlayerController(
     const EngineSettings& settings,
     BlocksController* blocksController) 
 	: level(level), 
-	  player(level->player), 
-	  camControl(level->player, settings.camera),
+	  player(level->getObject<Player>(0)), 
+	  camControl(player, settings.camera),
       blocksController(blocksController) {
 }
 
@@ -186,7 +186,7 @@ void PlayerController::updateCamera(float delta, bool movement) {
 	if (movement) {
 		camControl.updateMouse(input);
 	}
-	camControl.update(input, delta, level->chunks);
+	camControl.update(input, delta, level->chunks.get());
 }
 
 void PlayerController::resetKeyboard() {
@@ -207,9 +207,8 @@ void PlayerController::updateControls(float delta){
 
 void PlayerController::updateInteraction(){
 	auto indices = level->content->getIndices();
-	Chunks* chunks = level->chunks;
-	Player* player = level->player.get();
-	Lighting* lighting = level->lighting;
+	Chunks* chunks = level->chunks.get();
+	Lighting* lighting = level->lighting.get();
 	Camera* camera = player->camera.get();
 	glm::vec3 end;
 	glm::ivec3 iend;
@@ -269,24 +268,24 @@ void PlayerController::updateInteraction(){
 		
         if (lclick) {
             if (!input.shift && item->rt.funcsset.on_block_break_by) {
-                if (scripting::on_item_break_block(player, item, x, y, z))
+                if (scripting::on_item_break_block(player.get(), item, x, y, z))
                     return;
             } 
         }
 
 		Block* target = indices->getBlockDef(vox->id);
 		if (lclick && target->breakable){
-            blocksController->breakBlock(player, target, x, y, z);
+            blocksController->breakBlock(player.get(), target, x, y, z);
 		}
         if (rclick) {
             if (!input.shift && item->rt.funcsset.on_use_on_block) {
-                if (scripting::on_item_use_on_block(player, item, x, y, z))
+                if (scripting::on_item_use_on_block(player.get(), item, x, y, z))
                     return;
             } 
         }
 		if (def && rclick){
             if (!input.shift && target->rt.funcsset.oninteract) {
-                if (scripting::on_block_interact(player, target, x, y, z))
+                if (scripting::on_block_interact(player.get(), target, x, y, z))
                     return;
             }
 			if (!target->replaceable){
@@ -310,7 +309,7 @@ void PlayerController::updateInteraction(){
                         chunks->set(x, y, z, chosenBlock, states);
                         lighting->onBlockSet(x,y,z, chosenBlock);
                         if (def->rt.funcsset.onplaced) {
-                            scripting::on_block_placed(player, def, x, y, z);
+                            scripting::on_block_placed(player.get(), def, x, y, z);
                         }
                         blocksController->updateSides(x, y, z);
                     }
@@ -337,3 +336,7 @@ void PlayerController::updateInteraction(){
 		selectedBlockStates = 0;
 	}
 }
+
+Player* PlayerController::getPlayer() {
+    return player.get();
+}
diff --git a/src/logic/PlayerController.h b/src/logic/PlayerController.h
index a1479820..2bf3c437 100644
--- a/src/logic/PlayerController.h
+++ b/src/logic/PlayerController.h
@@ -49,6 +49,8 @@ public:
                      const EngineSettings& settings,
                      BlocksController* blocksController);
 	void update(float delta, bool input, bool pause);
+
+    Player* getPlayer();
 };
 
 #endif /* PLAYER_CONTROL_H_ */
diff --git a/src/logic/scripting/lua/libplayer.cpp b/src/logic/scripting/lua/libplayer.cpp
index f51c3e06..05e70635 100644
--- a/src/logic/scripting/lua/libplayer.cpp
+++ b/src/logic/scripting/lua/libplayer.cpp
@@ -11,9 +11,9 @@
 /* == player library ==*/
 int l_player_get_pos(lua_State* L) {
     int playerid = lua_tointeger(L, 1);
-    if (playerid != 1)
-        return 0;
-    glm::vec3 pos = scripting::level->player->hitbox->position;
+    auto player = scripting::level->getObject<Player>(playerid);
+    if (!player) return 0;
+    glm::vec3 pos = player->hitbox->position;
     lua_pushnumber(L, pos.x);
     lua_pushnumber(L, pos.y);
     lua_pushnumber(L, pos.z);
@@ -22,20 +22,19 @@ int l_player_get_pos(lua_State* L) {
 
 int l_player_set_pos(lua_State* L) {
     int playerid = lua_tointeger(L, 1);
-    if (playerid != 1)
-        return 0;
     lua::luanumber x = lua_tonumber(L, 2);
     lua::luanumber y = lua_tonumber(L, 3);
     lua::luanumber z = lua_tonumber(L, 4);
-    scripting::level->player->hitbox->position = glm::vec3(x, y, z);
+    auto player = scripting::level->getObject<Player>(playerid);
+    if (player) player->hitbox->position = glm::vec3(x, y, z);
     return 0;
 }
 
 int l_player_get_vel(lua_State* L) {
     int playerid = lua_tointeger(L, 1);
-    if (playerid != 1)
-        return 0;
-    glm::vec3 vel = scripting::level->player->hitbox->velocity;
+    auto player = scripting::level->getObject<Player>(playerid);
+    if (!player) return 0;
+    glm::vec3 vel = player->hitbox->velocity;
     lua_pushnumber(L, vel.x);
     lua_pushnumber(L, vel.y);
     lua_pushnumber(L, vel.z);
@@ -44,20 +43,19 @@ int l_player_get_vel(lua_State* L) {
 
 int l_player_set_vel(lua_State* L) {
     int playerid = lua_tointeger(L, 1);
-    if (playerid != 1)
-        return 0;
     lua::luanumber x = lua_tonumber(L, 2);
     lua::luanumber y = lua_tonumber(L, 3);
     lua::luanumber z = lua_tonumber(L, 4);
-    scripting::level->player->hitbox->velocity = glm::vec3(x, y, z);
+    auto player = scripting::level->getObject<Player>(playerid);
+    if (player) player->hitbox->velocity = glm::vec3(x, y, z);
     return 0;
 }
 
 int l_player_get_rot(lua_State* L) {
     int playerid = lua_tointeger(L, 1);
-    if (playerid != 1)
-        return 0;
-    glm::vec2 rot = scripting::level->player->cam;
+    auto player = scripting::level->getObject<Player>(playerid);
+    if (!player) return 0;
+    glm::vec2 rot = player->cam;
     lua_pushnumber(L, rot.x);
     lua_pushnumber(L, rot.y);
     return 2;
@@ -65,11 +63,11 @@ int l_player_get_rot(lua_State* L) {
 
 int l_player_set_rot(lua_State* L) {
     int playerid = lua_tointeger(L, 1);
-    if (playerid != 1)
-        return 0;
+    auto player = scripting::level->getObject<Player>(playerid);
+    if (!player) return 0;
     lua::luanumber x = lua_tonumber(L, 2);
     lua::luanumber y = lua_tonumber(L, 3);
-    glm::vec2& cam = scripting::level->player->cam;
+    glm::vec2& cam = player->cam;
     cam.x = x;
     cam.y = y;
     return 0;
@@ -77,9 +75,8 @@ int l_player_set_rot(lua_State* L) {
 
 int l_player_get_inv(lua_State* L) {
     int playerid = lua_tointeger(L, 1);
-    if (playerid != 1)
-        return 0;
-    auto player = scripting::level->player;
+    auto player = scripting::level->getObject<Player>(playerid);
+    if (!player) return 0;
     lua_pushinteger(L, player->getInventory()->getId());
     lua_pushinteger(L, player->getChosenSlot());
     return 2;
diff --git a/src/logic/scripting/scripting.cpp b/src/logic/scripting/scripting.cpp
index 6ea8da5b..b659be19 100644
--- a/src/logic/scripting/scripting.cpp
+++ b/src/logic/scripting/scripting.cpp
@@ -8,6 +8,7 @@
 #include "../../files/files.h"
 #include "../../util/timeutil.h"
 #include "../../world/Level.h"
+#include "../../objects/Player.h"
 #include "../../voxels/Block.h"
 #include "../../items/ItemDef.h"
 #include "../../items/Inventory.h"
@@ -160,7 +161,7 @@ void scripting::on_block_placed(Player* player, const Block* block, int x, int y
     std::string name = block->name+".placed";
     if (state->getglobal(name)) {
         state->pushivec3(x, y, z);
-        state->pushinteger(1); // playerid placeholder
+        state->pushinteger(player->getId());
         state->callNoThrow(4);
     }
 }
@@ -169,7 +170,7 @@ void scripting::on_block_broken(Player* player, const Block* block, int x, int y
     std::string name = block->name+".broken";
     if (state->getglobal(name)) {
         state->pushivec3(x, y, z);
-        state->pushinteger(1); // playerid placeholder
+        state->pushinteger(player->getId());
         state->callNoThrow(4);
     }
 }
@@ -178,7 +179,7 @@ bool scripting::on_block_interact(Player* player, const Block* block, int x, int
     std::string name = block->name+".interact";
     if (state->getglobal(name)) {
         state->pushivec3(x, y, z);
-        state->pushinteger(1); // playerid placeholder
+        state->pushinteger(player->getId());
         if (state->callNoThrow(4)) {
             return state->toboolean(-1);
         }
@@ -190,7 +191,7 @@ bool scripting::on_item_use_on_block(Player* player, const ItemDef* item, int x,
     std::string name = item->name+".useon";
     if (state->getglobal(name)) {
         state->pushivec3(x, y, z);
-        state->pushinteger(1); // playerid placeholder
+        state->pushinteger(player->getId());
         if (state->callNoThrow(4)) {
             return state->toboolean(-1);
         }
@@ -202,7 +203,7 @@ bool scripting::on_item_break_block(Player* player, const ItemDef* item, int x,
     std::string name = item->name+".blockbreakby";
     if (state->getglobal(name)) {
         state->pushivec3(x, y, z);
-        state->pushinteger(1); // playerid placeholder
+        state->pushinteger(player->getId());
         if (state->callNoThrow(4)) {
             return state->toboolean(-1);
         }
diff --git a/src/objects/Player.cpp b/src/objects/Player.cpp
index 62c9d712..93b294cd 100644
--- a/src/objects/Player.cpp
+++ b/src/objects/Player.cpp
@@ -78,7 +78,7 @@ void Player::updateInput(
     float vel = std::max(glm::length(hitbox->velocity * 0.25f), 1.0f);
 	int substeps = int(delta * vel * 1000);
 	substeps = std::min(100, std::max(1, substeps));
-	level->physics->step(level->chunks, hitbox.get(), 
+	level->physics->step(level->chunks.get(), hitbox.get(), 
 						 delta,  substeps, 
 						 crouch, flight ? 0.0f : 1.0f, 
 						 !noclip);
diff --git a/src/objects/Player.h b/src/objects/Player.h
index bea94c2b..05020637 100644
--- a/src/objects/Player.h
+++ b/src/objects/Player.h
@@ -73,7 +73,7 @@ public:
     static void convert(dynamic::Map* data, const ContentLUT* lut);
 
     inline int getId() const {
-        return 1;
+        return objectUID;
     }
 };
 
diff --git a/src/voxels/Chunks.cpp b/src/voxels/Chunks.cpp
index e65230b8..3a16b127 100644
--- a/src/voxels/Chunks.cpp
+++ b/src/voxels/Chunks.cpp
@@ -17,8 +17,8 @@
 #include <limits.h>
 #include <vector>
 
-Chunks::Chunks(int w, int d, 
-			   int ox, int oz, 
+Chunks::Chunks(uint32_t w, uint32_t d, 
+			   int32_t ox, int32_t oz, 
 			   WorldFiles* wfile, 
 			   LevelEvents* events, 
 			   const Content* content) 
@@ -32,7 +32,7 @@ Chunks::Chunks(int w, int d,
 	chunksCount = 0;
 }
 
-voxel* Chunks::get(int x, int y, int z){
+voxel* Chunks::get(int32_t x, int32_t y, int32_t z) {
 	x -= ox * CHUNK_W; 
 	z -= oz * CHUNK_D;
 	int cx = floordiv(x, CHUNK_W);
@@ -71,28 +71,28 @@ const AABB* Chunks::isObstacleAt(float x, float y, float z){
 	return nullptr;
 }
 
-bool Chunks::isSolidBlock(int x, int y, int z) {
+bool Chunks::isSolidBlock(int32_t x, int32_t y, int32_t z) {
     voxel* v = get(x, y, z);
     if (v == nullptr)
         return false;
     return contentIds->getBlockDef(v->id)->rt.solid;
 }
 
-bool Chunks::isReplaceableBlock(int x, int y, int z) {
+bool Chunks::isReplaceableBlock(int32_t x, int32_t y, int32_t z) {
     voxel* v = get(x, y, z);
     if (v == nullptr)
         return false;
     return contentIds->getBlockDef(v->id)->replaceable;
 }
 
-bool Chunks::isObstacleBlock(int x, int y, int z) {
+bool Chunks::isObstacleBlock(int32_t x, int32_t y, int32_t z) {
 	voxel* v = get(x, y, z);
 	if (v == nullptr)
 		return false;
 	return contentIds->getBlockDef(v->id)->obstacle;
 }
 
-ubyte Chunks::getLight(int x, int y, int z, int channel){
+ubyte Chunks::getLight(int32_t x, int32_t y, int32_t z, int channel){
 	x -= ox * CHUNK_W;
 	z -= oz * CHUNK_D;
 	int cx = floordiv(x, CHUNK_W);
@@ -106,10 +106,10 @@ ubyte Chunks::getLight(int x, int y, int z, int channel){
 	int lx = x - cx * CHUNK_W;
 	int ly = y - cy * CHUNK_H;
 	int lz = z - cz * CHUNK_D;
-	return chunk->lightmap.get(lx,ly,lz, channel);
+	return chunk->lightmap.get(lx, ly, lz, channel);
 }
 
-light_t Chunks::getLight(int x, int y, int z){
+light_t Chunks::getLight(int32_t x, int32_t y, int32_t z){
 	x -= ox * CHUNK_W;
 	z -= oz * CHUNK_D;
 	int cx = floordiv(x, CHUNK_W);
@@ -126,7 +126,7 @@ light_t Chunks::getLight(int x, int y, int z){
 	return chunk->lightmap.get(lx,ly,lz);
 }
 
-Chunk* Chunks::getChunkByVoxel(int x, int y, int z){
+Chunk* Chunks::getChunkByVoxel(int32_t x, int32_t y, int32_t z){
 	if (y < 0 || y >= CHUNK_H)
 		return nullptr;
 	x -= ox * CHUNK_W;
@@ -146,7 +146,7 @@ Chunk* Chunks::getChunk(int x, int z){
 	return chunks[z * w + x].get();
 }
 
-void Chunks::set(int x, int y, int z, int id, uint8_t states){
+void Chunks::set(int32_t x, int32_t y, int32_t z, uint32_t id, uint8_t states){
 	if (y < 0 || y >= CHUNK_H)
 		return;
 	x -= ox * CHUNK_W;
@@ -396,7 +396,7 @@ glm::vec3 Chunks::rayCastToObstacle(glm::vec3 start, glm::vec3 dir, float maxDis
 }
 
 
-void Chunks::setCenter(int x, int z) {
+void Chunks::setCenter(int32_t x, int32_t z) {
 	int cx = floordiv(x, CHUNK_W);
 	int cz = floordiv(z, CHUNK_D);
 	cx -= ox + w / 2;
@@ -406,7 +406,7 @@ void Chunks::setCenter(int x, int z) {
 	}
 }
 
-void Chunks::translate(int dx, int dz){
+void Chunks::translate(int32_t dx, int32_t dz) {
 	for (uint i = 0; i < volume; i++){
 		chunksSecond[i] = nullptr;
 	}
@@ -433,7 +433,7 @@ void Chunks::translate(int dx, int dz){
 	oz += dz;
 }
 
-void Chunks::resize(int newW, int newD) {
+void Chunks::resize(uint32_t newW, uint32_t newD) {
 	if (newW < w) {
 		int delta = w - newW;
 		translate(delta / 2, 0);
@@ -461,7 +461,7 @@ void Chunks::resize(int newW, int newD) {
     chunksSecond = std::move(newChunksSecond);
 }
 
-void Chunks::_setOffset(int x, int z){
+void Chunks::_setOffset(int32_t x, int32_t z) {
 	ox = x;
 	oz = z;
 }
diff --git a/src/voxels/Chunks.h b/src/voxels/Chunks.h
index 305650b4..b129ba71 100644
--- a/src/voxels/Chunks.h
+++ b/src/voxels/Chunks.h
@@ -26,23 +26,23 @@ public:
 	size_t volume;
 	size_t chunksCount;
 	size_t visible;
-	int w,d;
-	int ox,oz;
+	uint32_t w, d;
+	int32_t ox, oz;
 	WorldFiles* worldFiles;
 	LevelEvents* events;
 
-	Chunks(int w, int d, int ox, int oz, 
+	Chunks(uint32_t w, uint32_t d, int32_t ox, int32_t oz, 
 		   WorldFiles* worldFiles, LevelEvents* events, const Content* content);
 	~Chunks() = default;
 
 	bool putChunk(std::shared_ptr<Chunk> chunk);
 
-	Chunk* getChunk(int x, int z);
-	Chunk* getChunkByVoxel(int x, int y, int z);
-	voxel* get(int x, int y, int z);
-	light_t getLight(int x, int y, int z);
-	ubyte getLight(int x, int y, int z, int channel);
-	void set(int x, int y, int z, int id, uint8_t states);
+	Chunk* getChunk(int32_t x, int32_t z);
+	Chunk* getChunkByVoxel(int32_t x, int32_t y, int32_t z);
+	voxel* get(int32_t x, int32_t y, int32_t z);
+	light_t getLight(int32_t x, int32_t y, int32_t z);
+	ubyte getLight(int32_t x, int32_t y, int32_t z, int channel);
+	void set(int32_t x, int32_t y, int32_t z, uint32_t id, uint8_t states);
 
 	voxel* rayCast(glm::vec3 start, 
 				   glm::vec3 dir, 
@@ -54,16 +54,16 @@ public:
 	glm::vec3 rayCastToObstacle(glm::vec3 start, glm::vec3 dir, float maxDist);
 
 	const AABB* isObstacleAt(float x, float y, float z);
-    bool isSolidBlock(int x, int y, int z);
-    bool isReplaceableBlock(int x, int y, int z);
-	bool isObstacleBlock(int x, int y, int z);
+    bool isSolidBlock(int32_t x, int32_t y, int32_t z);
+    bool isReplaceableBlock(int32_t x, int32_t y, int32_t z);
+	bool isObstacleBlock(int32_t x, int32_t y, int32_t z);
 
 	// does not move chunks inside
-	void _setOffset(int x, int z);
+	void _setOffset(int32_t x, int32_t z);
 
-	void setCenter(int x, int z);
-	void translate(int x, int z);
-	void resize(int newW, int newD);
+	void setCenter(int32_t x, int32_t z);
+	void translate(int32_t x, int32_t z);
+	void resize(uint32_t newW, uint32_t newD);
 
 	void saveAndClear();
 };
diff --git a/src/world/Level.cpp b/src/world/Level.cpp
index e1b49712..4707908a 100644
--- a/src/world/Level.cpp
+++ b/src/world/Level.cpp
@@ -8,33 +8,25 @@
 #include "../voxels/ChunksStorage.h"
 #include "../physics/Hitbox.h"
 #include "../physics/PhysicsSolver.h"
-#include "../interfaces/Object.h"
 #include "../objects/Player.h"
 #include "../items/Inventory.h"
 #include "../items/Inventories.h"
 
-
-const float DEF_PLAYER_Y = 100.0f;
-const float DEF_PLAYER_SPEED = 4.0f;
-const int DEF_PLAYER_INVENTORY_SIZE = 40;
-
 Level::Level(World* world, const Content* content, EngineSettings& settings)
 	  : world(world),
 	    content(content),
-		chunksStorage(new ChunksStorage(this)),
-		events(new LevelEvents()) ,
+		chunksStorage(std::make_unique<ChunksStorage>(this)),
+		physics(std::make_unique<PhysicsSolver>(glm::vec3(0, -22.6f, 0))),
+        events(std::make_unique<LevelEvents>()),
 		settings(settings) 
 {
-	objCounter = 0;
-    physics = new PhysicsSolver(glm::vec3(0, -22.6f, 0));
-	auto inv = std::make_shared<Inventory>(0, DEF_PLAYER_INVENTORY_SIZE);
-	player = spawnObject<Player>(glm::vec3(0, DEF_PLAYER_Y, 0), DEF_PLAYER_SPEED, inv);
+	auto inv = std::make_shared<Inventory>(world->getNextInventoryId(), DEF_PLAYER_INVENTORY_SIZE);
+	auto player = spawnObject<Player>(glm::vec3(0, DEF_PLAYER_Y, 0), DEF_PLAYER_SPEED, inv);
 
-    uint matrixSize = (settings.chunks.loadDistance+
-					   settings.chunks.padding) * 2;
-    chunks = new Chunks(matrixSize, matrixSize, 0, 0, 
-						world->wfile.get(), events, content);
-	lighting = new Lighting(content, chunks);
+    uint matrixSize = (settings.chunks.loadDistance + settings.chunks.padding) * 2;
+    chunks = std::make_unique<Chunks>(matrixSize, matrixSize, 0, 0, 
+						world->wfile.get(), events.get(), content);
+	lighting = std::make_unique<Lighting>(content, chunks.get());
 
 	events->listen(EVT_CHUNK_HIDDEN, [this](lvl_event_type type, Chunk* chunk) {
 		this->chunksStorage->remove(chunk->x, chunk->z);
@@ -45,26 +37,16 @@ Level::Level(World* world, const Content* content, EngineSettings& settings)
 }
 
 Level::~Level(){
-	delete chunks;
-	delete events;
-	delete physics;
-	delete lighting;
-	delete chunksStorage;
-
-	for(auto obj : objects)
-	{
+	for(auto obj : objects) {
 		obj.reset();
 	}
 }
 
-void Level::update() {
-	glm::vec3 position = player->hitbox->position;
-	chunks->setCenter(position.x, position.z);
-
-	int matrixSize = (settings.chunks.loadDistance+
-					  settings.chunks.padding) * 2;
-	if (chunks->w != matrixSize) {
-		chunks->resize(matrixSize, matrixSize);
+void Level::loadMatrix(int32_t x, int32_t z, uint32_t radius) {
+	chunks->setCenter(x, z);
+    radius = std::min(radius, settings.chunks.loadDistance + settings.chunks.padding * 2);
+	if (chunks->w != radius) {
+		chunks->resize(radius, radius);
 	}
 }
 
@@ -72,17 +54,3 @@ World* Level::getWorld() {
     return world.get();
 }
 
-
-template<class T, typename... Args>
-std::shared_ptr<T> Level::spawnObject(Args&&... args)
-{
-	static_assert(std::is_base_of<Object, T>::value, "T must be a derived of Object class");
-	std::shared_ptr<T> tObj = std::make_shared<T>(args...);
-	
-	std::shared_ptr<Object> obj = std::dynamic_pointer_cast<Object, T>(tObj);
-	objects.push_back(obj);
-	obj->objectUID = objCounter;
-	obj->spawned();
-	objCounter += 1;
-	return tObj;
-}
diff --git a/src/world/Level.h b/src/world/Level.h
index fbf9d283..7708921f 100644
--- a/src/world/Level.h
+++ b/src/world/Level.h
@@ -3,16 +3,17 @@
 
 #include <memory>
 
-#include "../typedefs.h"
 #include "../settings.h"
-#include <list>
+#include "../interfaces/Object.h"
 #include <vector>
-#include <chrono>
+
+const float DEF_PLAYER_Y = 100.0f;
+const float DEF_PLAYER_SPEED = 4.0f;
+const int DEF_PLAYER_INVENTORY_SIZE = 40;
 
 class Content;
 class World;
 class Player;
-class Object;
 class Chunks;
 class Inventory;
 class Inventories;
@@ -21,21 +22,19 @@ class Lighting;
 class PhysicsSolver;
 class ChunksStorage;
 
+/* A level, contains chunks and objects */
 class Level {
-private:
-	int objCounter;
 public:
 	std::unique_ptr<World> world;
 	const Content* const content;
-	std::list<std::shared_ptr<Object>> objects;
-	std::shared_ptr<Player> player;
-	Chunks* chunks;
-	ChunksStorage* chunksStorage;
+	std::vector<std::shared_ptr<Object>> objects;
+    std::unique_ptr<Chunks> chunks;
+    std::unique_ptr<ChunksStorage> chunksStorage;
 	std::unique_ptr<Inventories> inventories;
 
-	PhysicsSolver* physics;
-	Lighting* lighting;
-	LevelEvents* events;
+    std::unique_ptr<PhysicsSolver> physics;
+    std::unique_ptr<Lighting> lighting;
+    std::unique_ptr<LevelEvents> events;
 
 	const EngineSettings& settings;
 
@@ -44,7 +43,7 @@ public:
 	      EngineSettings& settings);
 	~Level();
 
-	void update();
+	void loadMatrix(int32_t x, int32_t z, uint32_t radius);
     
     World* getWorld();
 
@@ -52,7 +51,24 @@ public:
 	// @param T class that derives the Object class
 	// @param args pass arguments needed for T class constructor
 	template<class T, typename... Args>
-	std::shared_ptr<T> spawnObject(Args&&... args);
+	std::shared_ptr<T> spawnObject(Args&&... args) {
+        static_assert(std::is_base_of<Object, T>::value, "T must be a derived of Object class");
+        std::shared_ptr<T> tObj = std::make_shared<T>(args...);
+        
+        std::shared_ptr<Object> obj = std::dynamic_pointer_cast<Object, T>(tObj);
+        obj->objectUID = objects.size();
+        objects.push_back(obj);
+        obj->spawned();
+        return tObj;
+    }
+
+    template<class T>
+    std::shared_ptr<T> getObject(uint64_t id) {
+        static_assert(std::is_base_of<Object, T>::value, "T must be a derived of Object class");
+        if (id >= objects.size()) return nullptr;
+        std::shared_ptr<T> object = std::dynamic_pointer_cast<T>(objects[id]);
+        return object; 
+    }
 };
 
 #endif /* WORLD_LEVEL_H_ */
diff --git a/src/world/World.cpp b/src/world/World.cpp
index 5cb6cc59..800518df 100644
--- a/src/world/World.cpp
+++ b/src/world/World.cpp
@@ -50,7 +50,7 @@ void World::updateTimers(float delta) {
 void World::write(Level* level) {
     const Content* content = level->content;
 
-    Chunks* chunks = level->chunks;
+    Chunks* chunks = level->chunks.get();
 
     for (size_t i = 0; i < chunks->volume; i++) {
         auto chunk = chunks->chunks[i];
@@ -64,7 +64,16 @@ void World::write(Level* level) {
     }
 
     wfile->write(this, content);
-    wfile->writePlayer(level->player);
+	auto playerFile = dynamic::Map();
+    {
+        auto& players = playerFile.putList("players");
+        for (auto object : level->objects) {
+            if (std::shared_ptr<Player> player = std::dynamic_pointer_cast<Player>(object)) {
+                players.put(player->serialize().release());
+            }
+        }
+    }
+    files::write_json(wfile->getPlayerFile(), &playerFile);
 }
 
 Level* World::create(std::string name, 
@@ -77,9 +86,6 @@ Level* World::create(std::string name,
 ) {
     auto world = new World(name, generator, directory, seed, settings, content, packs);
     auto level = new Level(world, content, settings);
-    auto inventory = level->player->getInventory();
-    inventory->setId(world->getNextInventoryId());
-    level->inventories->store(inventory);
     return level;
 }
 
@@ -97,9 +103,28 @@ Level* World::load(fs::path directory,
     }
 
     auto level = new Level(world.get(), content, settings);
-    wfile->readPlayer(level->player);
-    level->inventories->store(level->player->getInventory());
-    world.release();
+    {
+        fs::path file = wfile->getPlayerFile();
+        if (!fs::is_regular_file(file)) {
+            std::cerr << "warning: player.json does not exists" << std::endl;
+        } else {
+            auto playerFile = files::read_json(file);
+            if (playerFile->has("players")) {
+                level->objects.clear();
+                auto players = playerFile->list("players");
+                for (size_t i = 0; i < players->size(); i++) {
+                    auto player = level->spawnObject<Player>(glm::vec3(0, DEF_PLAYER_Y, 0), DEF_PLAYER_SPEED, level->inventories->create(DEF_PLAYER_INVENTORY_SIZE));
+                    player->deserialize(players->map(i));
+                    level->inventories->store(player->getInventory());
+                }
+            } else {
+	            auto player = level->getObject<Player>(0);
+                player->deserialize(playerFile.get());
+                level->inventories->store(player->getInventory());
+            }
+        }
+    }
+    (void)world.release();
     return level;
 }
 
@@ -193,4 +218,4 @@ std::unique_ptr<dynamic::Map> World::serialize() const {
 
     root->put("next-inventory-id", nextInventoryId);
     return root;
-}
\ No newline at end of file
+}
diff --git a/src/world/World.h b/src/world/World.h
index c23ec03d..63c322d9 100644
--- a/src/world/World.h
+++ b/src/world/World.h
@@ -27,6 +27,7 @@ public:
     world_load_error(std::string message);
 };
 
+/* World - holds all world data except the level (chunks and objects)  */
 class World : Serializable {
     std::string name;
     std::string generator;
@@ -35,7 +36,7 @@ class World : Serializable {
     const Content* const content;
     std::vector<ContentPack> packs;
 
-    int64_t nextInventoryId = 1;
+    int64_t nextInventoryId = 0;
 public:
     std::unique_ptr<WorldFiles> wfile;
 
@@ -157,4 +158,4 @@ public:
     void deserialize(dynamic::Map *src) override;
 };
 
-#endif /* WORLD_WORLD_H_ */
\ No newline at end of file
+#endif /* WORLD_WORLD_H_ */