diff --git a/src/main/java/com/pixelgamelibrary/backend/libgdx/AppLibGDXImpl.java b/src/main/java/com/pixelgamelibrary/backend/libgdx/AppLibGDXImpl.java
index 2389c94..9331042 100644
--- a/src/main/java/com/pixelgamelibrary/backend/libgdx/AppLibGDXImpl.java
+++ b/src/main/java/com/pixelgamelibrary/backend/libgdx/AppLibGDXImpl.java
@@ -23,7 +23,9 @@ import com.badlogic.gdx.Application;
 import static com.badlogic.gdx.Application.ApplicationType.Android;
 import static com.badlogic.gdx.Application.ApplicationType.Desktop;
 import static com.badlogic.gdx.Application.ApplicationType.WebGL;
+import static com.badlogic.gdx.Application.ApplicationType.iOS;
 import com.badlogic.gdx.Gdx;
+import com.pixelgamelibrary.api.GameI;
 import com.pixelgamelibrary.api.PixelException;
 import com.pixelgamelibrary.api.Platform;
 import com.pixelgamelibrary.api.interfaces.AppI;
@@ -37,6 +39,7 @@ public class AppLibGDXImpl implements AppI {
     private static final String DEFAULT_APP_NAME = "pixel-app";
 
     private String appName = null;
+    private GameI game;
 
     @Override
     public void exit() {
@@ -53,6 +56,8 @@ public class AppLibGDXImpl implements AppI {
                 return Platform.ANDROID;
             case WebGL:
                 return Platform.WEB;
+            case iOS:
+                return Platform.IOS;
             default:
                 throw new PixelException("Unsupported platform: " + applicationType);
         }
@@ -106,4 +111,14 @@ public class AppLibGDXImpl implements AppI {
         return appName != null;
     }
 
+    @Override
+    public void setGame(GameI game) {
+        this.game = game;
+    }
+
+    @Override
+    public GameI getGame() {
+        return game;
+    }
+
 }
diff --git a/src/main/java/com/pixelgamelibrary/backend/libgdx/GraphicsLibGDXImpl.java b/src/main/java/com/pixelgamelibrary/backend/libgdx/GraphicsLibGDXImpl.java
index a8c6d8d..17af34b 100644
--- a/src/main/java/com/pixelgamelibrary/backend/libgdx/GraphicsLibGDXImpl.java
+++ b/src/main/java/com/pixelgamelibrary/backend/libgdx/GraphicsLibGDXImpl.java
@@ -36,7 +36,7 @@ public class GraphicsLibGDXImpl implements GraphicsI {
 
     
     @Override
-    public String setDisplayMode(boolean fullscreen, boolean window) {
+    public WindowMode setDisplayMode(boolean fullscreen, boolean window) {
 
         if (fullscreen) {
             Graphics.Monitor currentMonitor = Gdx.graphics.getMonitor();
diff --git a/src/main/java/com/pixelgamelibrary/backend/libgdx/InternalLibGDXImpl.java b/src/main/java/com/pixelgamelibrary/backend/libgdx/InternalLibGDXImpl.java
new file mode 100644
index 0000000..99723d7
--- /dev/null
+++ b/src/main/java/com/pixelgamelibrary/backend/libgdx/InternalLibGDXImpl.java
@@ -0,0 +1,32 @@
+///////////////////////////////////////////////////////////////////////////////////////////////
+// Pixel: Game library.
+// Copyright (C) 2024 the original author or authors.
+//
+// This program is free software: you can redistribute it and/or
+// modify it under the terms of the GNU General Public License
+// as published by the Free Software Foundation, either version 3
+// of the License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see 
+// <https://www.gnu.org/licenses/> or write to the Free Software
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+///////////////////////////////////////////////////////////////////////////////////////////////
+package com.pixelgamelibrary.backend.libgdx;
+
+import com.pixelgamelibrary.api.interfaces.InternalI;
+
+/**
+ *
+ * @author robertvokac
+ */
+public class InternalLibGDXImpl implements InternalI {
+
+   
+
+}
diff --git a/src/main/java/com/pixelgamelibrary/backend/libgdx/PixelBackendLibGDX.java b/src/main/java/com/pixelgamelibrary/backend/libgdx/PixelBackendLibGDX.java
index 4a3df3a..5811b64 100644
--- a/src/main/java/com/pixelgamelibrary/backend/libgdx/PixelBackendLibGDX.java
+++ b/src/main/java/com/pixelgamelibrary/backend/libgdx/PixelBackendLibGDX.java
@@ -24,6 +24,7 @@ import com.pixelgamelibrary.api.interfaces.AssetI;
 import com.pixelgamelibrary.api.interfaces.AudioI;
 import com.pixelgamelibrary.api.interfaces.GraphicsI;
 import com.pixelgamelibrary.api.interfaces.InputI;
+import com.pixelgamelibrary.api.interfaces.InternalI;
 import com.pixelgamelibrary.api.interfaces.UtilsI;
 import com.pixelgamelibrary.api.interfaces.StorageI;
 import com.pixelgamelibrary.api.interfaces.NetI;
@@ -43,7 +44,8 @@ public class PixelBackendLibGDX implements PixelBackend {
     private AssetI pixelAssetLibGdxImpl = null;
     private StorageI pixelStorageLibGdxImpl = null;
     private UtilsI pixelUtilsLibGdxImpl = null;
-
+    private InternalI pixelInternalLibGdxImpl = null;
+    
 
     @Override
     public GraphicsI graphics() {
@@ -104,13 +106,24 @@ public class PixelBackendLibGDX implements PixelBackend {
         if (pixelUtilsLibGdxImpl == null) {
             pixelUtilsLibGdxImpl = new UtilsLibGDXImpl(app());
         }
-        return pixelUtilsLibGdxImpl;    }
+        return pixelUtilsLibGdxImpl;
+    }
 
     @Override
     public AppI app() {
         if (pixelAppLibGdxImpl == null) {
             pixelAppLibGdxImpl = new AppLibGDXImpl();
         }
-        return pixelAppLibGdxImpl;       }
+        return pixelAppLibGdxImpl;
+    }
+
+    @Override
+    public InternalI internal() {
+
+        if (pixelInternalLibGdxImpl == null) {
+            pixelInternalLibGdxImpl = new InternalLibGDXImpl();
+        }
+        return pixelInternalLibGdxImpl;
+    }
 
 }
diff --git a/src/main/java/com/pixelgamelibrary/backend/libgdx/game/LibGdxGame.java b/src/main/java/com/pixelgamelibrary/backend/libgdx/game/LibGdxGame.java
new file mode 100644
index 0000000..4c74593
--- /dev/null
+++ b/src/main/java/com/pixelgamelibrary/backend/libgdx/game/LibGdxGame.java
@@ -0,0 +1,104 @@
+///////////////////////////////////////////////////////////////////////////////////////////////
+// Pixel: Game library.
+// Copyright (C) 2024 the original author or authors.
+//
+// This program is free software: you can redistribute it and/or
+// modify it under the terms of the GNU General Public License
+// as published by the Free Software Foundation, either version 3
+// of the License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see 
+// <https://www.gnu.org/licenses/> or write to the Free Software
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+///////////////////////////////////////////////////////////////////////////////////////////////
+package com.pixelgamelibrary.backend.libgdx.game;
+
+import com.pixelgamelibrary.api.GameI;
+import com.pixelgamelibrary.api.GameWrapper;
+import com.pixelgamelibrary.api.OnSetScreenListener;
+import com.pixelgamelibrary.api.ScreenI;
+import com.pixelgamelibrary.backend.libgdx.screen.LibGdxScreen;
+
+/**
+ *
+ * @author robertvokac
+ */
+public class LibGdxGame extends com.badlogic.gdx.Game implements OnSetScreenListener {
+
+    private final GameI game;
+
+    @Override
+    public void onSetScreen(ScreenI screen) {
+        setScreen(new LibGdxScreen(screen));
+        System.out.println("LibGdxGame:onSetScreen");
+    }
+
+    class LibGdxGameWrapper extends GameWrapper {
+
+        private final LibGdxGame libGdxGame;
+
+        public LibGdxGameWrapper(GameI gameI, LibGdxGame libGdxGame) {
+            super(gameI);
+            this.libGdxGame = libGdxGame;
+            gameI.setOnSetScreenListener(libGdxGame);
+        }
+
+//        @Override
+//        public void setScreen(ScreenI screen) {
+//            System.out.println("LibGdxGame: setScreen");
+//            libGdxGame.setScreen(new LibGdxScreen(screen));
+//        }
+//
+//        @Override
+//        public ScreenI getScreen() {
+//            System.out.println("LibGdxGame: getScreen");
+//            LibGdxScreen screen = (LibGdxScreen) libGdxGame.getScreen();
+//            return screen.getPixelScreen();
+//        }
+        
+
+    }
+
+    public LibGdxGame(GameI game) {
+        this.game = new LibGdxGameWrapper(game, this);
+    }
+
+    @Override
+    public void create() {
+        game.create();
+    }
+//
+//    @Override
+//    public void resize(int width, int height) {
+//        game.resize(width, height);
+//    }
+//private int i = 0;
+//    @Override
+//    public void render() {
+//        i++;
+//        System.out.println("Calling LibGdxGame.render " + i);
+//        game.render();
+//    }
+//
+//    @Override
+//    public void pause() {
+//        game.pause();
+//    }
+//
+//    @Override
+//    public void resume() {
+//        game.resume();
+//    }
+//
+//    @Override
+//    public void dispose() {
+//        game.dispose();
+//    }
+
+}
diff --git a/src/main/java/com/pixelgamelibrary/backend/libgdx/screen/LibGdxScreen.java b/src/main/java/com/pixelgamelibrary/backend/libgdx/screen/LibGdxScreen.java
new file mode 100644
index 0000000..c70f0e3
--- /dev/null
+++ b/src/main/java/com/pixelgamelibrary/backend/libgdx/screen/LibGdxScreen.java
@@ -0,0 +1,87 @@
+///////////////////////////////////////////////////////////////////////////////////////////////
+// Pixel: Game library.
+// Copyright (C) 2024 the original author or authors.
+//
+// This program is free software: you can redistribute it and/or
+// modify it under the terms of the GNU General Public License
+// as published by the Free Software Foundation, either version 3
+// of the License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see 
+// <https://www.gnu.org/licenses/> or write to the Free Software
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+///////////////////////////////////////////////////////////////////////////////////////////////
+package com.pixelgamelibrary.backend.libgdx.screen;
+
+import com.pixelgamelibrary.api.ScreenI;
+import com.pixelgamelibrary.api.ScreenWrapper;
+import lombok.Getter;
+
+/**
+ *
+ * @author robertvokac
+ */
+public class LibGdxScreen extends com.badlogic.gdx.ScreenAdapter {
+
+    @Getter
+    private final ScreenI pixelScreen;
+
+    class LibGdxScreenWrapper extends ScreenWrapper {
+
+        private final LibGdxScreen libGdxScreen;
+
+        public LibGdxScreenWrapper(ScreenI screen, LibGdxScreen libGdxScreenIn) {
+            super(screen);
+            this.libGdxScreen = libGdxScreenIn;
+        }
+
+    }
+
+    public LibGdxScreen(ScreenI screen) {
+        this.pixelScreen = new LibGdxScreenWrapper(screen, this);
+        System.out.println("aaaaaa");
+    }
+
+    @Override
+    public void render(float delta) {
+        System.out.println("LibGdxScreen : render");
+        pixelScreen.render(delta);
+    }
+
+    @Override
+    public void resize(int width, int height) {
+        pixelScreen.resize(width, height);
+    }
+
+    @Override
+    public void show() {
+        pixelScreen.show();
+    }
+
+    @Override
+    public void hide() {
+        pixelScreen.hide();
+    }
+
+    @Override
+    public void pause() {
+        pixelScreen.pause();
+    }
+
+    @Override
+    public void resume() {
+        pixelScreen.resume();
+    }
+
+    @Override
+    public void dispose() {
+        pixelScreen.dispose();
+    }
+
+}
diff --git a/src/test/java/com/pixelgamelibrary/backend/libgdx/storage/DesktopAndroidStorageTest.java b/src/test/java/com/pixelgamelibrary/backend/libgdx/storage/DesktopAndroidStorageTest.java
index 113743d..195ff1b 100644
--- a/src/test/java/com/pixelgamelibrary/backend/libgdx/storage/DesktopAndroidStorageTest.java
+++ b/src/test/java/com/pixelgamelibrary/backend/libgdx/storage/DesktopAndroidStorageTest.java
@@ -2,6 +2,7 @@ package com.pixelgamelibrary.backend.libgdx.storage;
 
 import com.badlogic.gdx.Gdx;
 import com.badlogic.gdx.files.FileHandle;
+import com.pixelgamelibrary.api.GameI;
 import com.pixelgamelibrary.api.Pixel;
 import com.pixelgamelibrary.api.Platform;
 import com.pixelgamelibrary.api.interfaces.AppI;
@@ -9,6 +10,7 @@ import com.pixelgamelibrary.api.interfaces.AssetI;
 import com.pixelgamelibrary.api.interfaces.AudioI;
 import com.pixelgamelibrary.api.interfaces.GraphicsI;
 import com.pixelgamelibrary.api.interfaces.InputI;
+import com.pixelgamelibrary.api.interfaces.InternalI;
 import com.pixelgamelibrary.api.interfaces.NetI;
 import com.pixelgamelibrary.api.interfaces.PixelBackend;
 import com.pixelgamelibrary.api.interfaces.StorageI;
@@ -83,6 +85,16 @@ class DesktopAndroidStorageTest {
                         throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
                     }
 
+                    @Override
+                    public void setGame(GameI game) {
+                        throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
+                    }
+
+                    @Override
+                    public GameI getGame() {
+                        throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
+                    }
+
                 };
             }
 
@@ -120,6 +132,11 @@ class DesktopAndroidStorageTest {
             public UtilsI utils() {
                 throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
             }
+
+            @Override
+            public InternalI internal() {
+                throw new UnsupportedOperationException("Not supported yet."); // Generated from nbfs://nbhost/SystemFileSystem/Templates/Classes/Code/GeneratedMethodBody
+            }
         };
         Pixel.initBackend(dummyPixelBackend);
 }