diff --git a/res/layouts/pages/new_world.xml.lua b/res/layouts/pages/new_world.xml.lua
index 694ca9565..ad95aad0d 100644
--- a/res/layouts/pages/new_world.xml.lua
+++ b/res/layouts/pages/new_world.xml.lua
@@ -21,7 +21,7 @@ function create_world()
     local seed = document.seed_box.text
     local generator = settings.generator
     session.reset_entry('new_world')
-    core.new_world(name, seed, generator)
+    app.new_world(name, seed, generator)
 end
 
 function world_name_placeholder()
diff --git a/res/layouts/pages/pause.xml b/res/layouts/pages/pause.xml
index 63d827e10..3e4427cae 100644
--- a/res/layouts/pages/pause.xml
+++ b/res/layouts/pages/pause.xml
@@ -2,7 +2,7 @@
     <button onclick='menu:reset()'>@Continue</button>
     <button onclick='menu.page="content?mode=world"'>@Content</button>
     <button onclick='menu.page="settings"'>@Settings</button>
-    <button onclick='core.close_world(true)'>
+    <button onclick='app.close_world(true)'>
         @Save and Quit to Menu
     </button>
 </panel>
diff --git a/res/layouts/templates/world.xml b/res/layouts/templates/world.xml
index a258604b4..4ae936b6e 100644
--- a/res/layouts/templates/world.xml
+++ b/res/layouts/templates/world.xml
@@ -2,7 +2,7 @@
     size='380,66'
     color='#0F1E2DB2'
     hover-color='#162B3399'
-    onclick='core.open_world("%{name}")'
+    onclick='app.open_world("%{name}")'
 >
     <image pos='1' src='%{icon}' size='96,64'></image>
     <label pos='104,8'>%{name}</label>
@@ -11,7 +11,7 @@
             color='#00000000'
             hover-color='#FFFFFF2B'
             padding='0'
-            onclick='core.delete_world("%{name}")'>
+            onclick='app.delete_world("%{name}")'>
         <image src='gui/delete_icon' size='32,32' color='#FFFFFF50'/>
     </button>
     <label color='%{versionColor}' pos='317,44'>%{versionString}</label>
diff --git a/res/scripts/stdlib.lua b/res/scripts/stdlib.lua
index cc0131fa7..4eb6dd17e 100644
--- a/res/scripts/stdlib.lua
+++ b/res/scripts/stdlib.lua
@@ -36,12 +36,6 @@ local function complete_app_lib(app)
 
     app.sleep = sleep
     app.script = __VC_SCRIPT_NAME
-    app.new_world = core.new_world
-    app.open_world = core.open_world
-    app.save_world = core.save_world
-    app.close_world = core.close_world
-    app.reopen_world = core.reopen_world
-    app.delete_world = core.delete_world
 
     app.set_setting = function(name, value, ...)
         __app_set_setting(name, value, ...)
diff --git a/src/logic/scripting/lua/libs/libapp.cpp b/src/logic/scripting/lua/libs/libapp.cpp
index 9412baa36..736fc8624 100644
--- a/src/logic/scripting/lua/libs/libapp.cpp
+++ b/src/logic/scripting/lua/libs/libapp.cpp
@@ -1,22 +1,24 @@
 #include "api_lua.hpp"
 
-#include "io/io.hpp"
-#include "io/settings_io.hpp"
-#include "io/devices/MemoryDevice.hpp"
-#include "logic/scripting/scripting.hpp"
-#include "logic/EngineController.hpp"
 #include "content/ContentControl.hpp"
+#include "devtools/Project.hpp"
 #include "engine/Engine.hpp"
 #include "engine/EnginePaths.hpp"
-#include "devtools/Project.hpp"
+#include "frontend/locale.hpp"
+#include "graphics/ui/elements/Menu.hpp"
+#include "graphics/ui/gui_util.hpp"
+#include "graphics/ui/GUI.hpp"
+#include "io/devices/MemoryDevice.hpp"
+#include "io/io.hpp"
+#include "io/settings_io.hpp"
+#include "logic/EngineController.hpp"
+#include "logic/LevelController.hpp"
+#include "logic/scripting/scripting.hpp"
 #include "network/Network.hpp"
 #include "util/platform.hpp"
 #include "util/stringutil.hpp"
 #include "window/Window.hpp"
-#include "frontend/locale.hpp"
-#include "graphics/ui/GUI.hpp"
-#include "graphics/ui/gui_util.hpp"
-#include "graphics/ui/elements/Menu.hpp"
+#include "world/Level.hpp"
 
 using namespace scripting;
 
@@ -266,6 +268,84 @@ static int l_open_url(lua::State* L) {
     return 0;
 }
 
+/// @brief Creating new world
+/// @param name Name world
+/// @param seed Seed world
+/// @param generator Type of generation
+static int l_new_world(lua::State* L) {
+    auto name = lua::require_string(L, 1);
+    auto seed = lua::require_string(L, 2);
+    auto generator = lua::require_string(L, 3);
+    int64_t localPlayer = 0;
+    if (lua::gettop(L) >= 4) {
+        localPlayer = lua::tointeger(L, 4);
+    }
+    if (level != nullptr) {
+        throw std::runtime_error("world must be closed before");
+    }
+    auto controller = engine->getController();
+    controller->setLocalPlayer(localPlayer);
+    controller->createWorld(name, seed, generator);
+    return 0;
+}
+
+/// @brief Open world
+/// @param name Name world
+static int l_open_world(lua::State* L) {
+    auto name = lua::require_string(L, 1);
+    if (level != nullptr) {
+        throw std::runtime_error("world must be closed before");
+    }
+    auto controller = engine->getController();
+    controller->setLocalPlayer(0);
+    controller->openWorld(name, false);
+    return 0;
+}
+
+/// @brief Reopen world
+static int l_reopen_world(lua::State*) {
+    auto controller = engine->getController();
+    if (level == nullptr) {
+        throw std::runtime_error("no world open");
+    }
+    controller->reopenWorld(level->getWorld());
+    return 0;
+}
+
+/// @brief Save world
+static int l_save_world(lua::State* L) {
+    if (controller == nullptr) {
+        throw std::runtime_error("no world open");
+    }
+    controller->saveWorld();
+    return 0;
+}
+
+/// @brief Close world
+/// @param flag Save world (bool)
+static int l_close_world(lua::State* L) {
+    if (controller == nullptr) {
+        throw std::runtime_error("no world open");
+    }
+    controller->processBeforeQuit();
+    bool save_world = lua::toboolean(L, 1);
+    if (save_world) {
+        controller->saveWorld();
+    }
+    engine->onWorldClosed();
+    return 0;
+}
+
+/// @brief Delete world
+/// @param name Name world
+static int l_delete_world(lua::State* L) {
+    auto name = lua::require_string(L, 1);
+    auto controller = engine->getController();
+    controller->deleteWorld(name);
+    return 0;
+}
+
+
 /// @brief Quit the game
 static int l_quit(lua::State*) {
     engine->quit();
@@ -291,6 +371,12 @@ const luaL_Reg applib[] = {
     {"set_setting", lua::wrap<l_set_setting>},
     {"str_setting", lua::wrap<l_str_setting>},
     {"get_setting_info", lua::wrap<l_get_setting_info>},
+    {"new_world", lua::wrap<l_new_world>},
+    {"open_world", lua::wrap<l_open_world>},
+    {"reopen_world", lua::wrap<l_reopen_world>},
+    {"save_world", lua::wrap<l_save_world>},
+    {"close_world", lua::wrap<l_close_world>},
+    {"delete_world", lua::wrap<l_delete_world>},
     {"quit", lua::wrap<l_quit>},
     // for other functions see libcore.cpp and stdlib.lua
     {nullptr, nullptr}
diff --git a/src/logic/scripting/lua/libs/libcore.cpp b/src/logic/scripting/lua/libs/libcore.cpp
index b9648ad35..324cd5471 100644
--- a/src/logic/scripting/lua/libs/libcore.cpp
+++ b/src/logic/scripting/lua/libs/libcore.cpp
@@ -1,105 +1,9 @@
 #include "api_lua.hpp"
-#include "constants.hpp"
-#include "assets/Assets.hpp"
-#include "content/Content.hpp"
-#include "content/ContentControl.hpp"
-#include "engine/Engine.hpp"
-#include "engine/EnginePaths.hpp"
-#include "io/io.hpp"
-#include "frontend/menu.hpp"
-#include "frontend/screens/MenuScreen.hpp"
-#include "graphics/core/Texture.hpp"
-#include "logic/EngineController.hpp"
-#include "logic/LevelController.hpp"
-#include "util/listutil.hpp"
-#include "util/platform.hpp"
-#include "world/Level.hpp"
-#include "world/generator/WorldGenerator.hpp"
-#include "window/Window.hpp"
 
-#include <memory>
-#include <vector>
 #include <sstream>
 
 using namespace scripting;
 
-/// @brief Creating new world
-/// @param name Name world
-/// @param seed Seed world
-/// @param generator Type of generation
-static int l_new_world(lua::State* L) {
-    auto name = lua::require_string(L, 1);
-    auto seed = lua::require_string(L, 2);
-    auto generator = lua::require_string(L, 3);
-    int64_t localPlayer = 0;
-    if (lua::gettop(L) >= 4) {
-        localPlayer = lua::tointeger(L, 4);
-    }
-    if (level != nullptr) {
-        throw std::runtime_error("world must be closed before");
-    }
-    auto controller = engine->getController();
-    controller->setLocalPlayer(localPlayer);
-    controller->createWorld(name, seed, generator);
-    return 0;
-}
-
-/// @brief Open world
-/// @param name Name world
-static int l_open_world(lua::State* L) {
-    auto name = lua::require_string(L, 1);
-    if (level != nullptr) {
-        throw std::runtime_error("world must be closed before");
-    }
-    auto controller = engine->getController();
-    controller->setLocalPlayer(0);
-    controller->openWorld(name, false);
-    return 0;
-}
-
-/// @brief Reopen world
-static int l_reopen_world(lua::State*) {
-    auto controller = engine->getController();
-    if (level == nullptr) {
-        throw std::runtime_error("no world open");
-    }
-    controller->reopenWorld(level->getWorld());
-    return 0;
-}
-
-/// @brief Save world
-static int l_save_world(lua::State* L) {
-    if (controller == nullptr) {
-        throw std::runtime_error("no world open");
-    }
-    controller->saveWorld();
-    return 0;
-}
-
-/// @brief Close world
-/// @param flag Save world (bool)
-static int l_close_world(lua::State* L) {
-    if (controller == nullptr) {
-        throw std::runtime_error("no world open");
-    }
-    controller->processBeforeQuit();
-    bool save_world = lua::toboolean(L, 1);
-    if (save_world) {
-        controller->saveWorld();
-    }
-    engine->onWorldClosed();
-    return 0;
-}
-
-/// @brief Delete world
-/// @param name Name world
-static int l_delete_world(lua::State* L) {
-    auto name = lua::require_string(L, 1);
-    auto controller = engine->getController();
-    controller->deleteWorld(name);
-    return 0;
-}
-
 static int l_blank(lua::State*) {
     return 0;
 }
@@ -133,12 +37,6 @@ static int l_capture_output(lua::State* L) {
 
 const luaL_Reg corelib[] = {
     {"blank", lua::wrap<l_blank>},
-    {"new_world", lua::wrap<l_new_world>},
-    {"open_world", lua::wrap<l_open_world>},
-    {"reopen_world", lua::wrap<l_reopen_world>},
-    {"save_world", lua::wrap<l_save_world>},
-    {"close_world", lua::wrap<l_close_world>},
-    {"delete_world", lua::wrap<l_delete_world>},
     {"capture_output", lua::wrap<l_capture_output>},
     {nullptr, nullptr}
 };