diff --git a/src/startMultiplayerGame.java b/src/startMultiplayerGame.java
new file mode 100644
index 0000000..f184d68
--- /dev/null
+++ b/src/startMultiplayerGame.java
@@ -0,0 +1,215 @@
+import javax.swing.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+
+/*
+    TODO:
+    Back Button führt ins vorherige Fenster
+    Spiel erstellen/beitreten geht ins nächste Fenster
+    Gebrauchte Attribute werden übergeben (Semester Spielername etc.)
+    Klasse mit Controller aufteilen
+*/
+
+public class startMultiplayerGame {
+    // Funktionshilfen
+    int semesterCounter = 1; // Semester Counter Label
+    String PlayerNickname = "Spieler 1";
+
+    // Grafiken
+    ImageIcon backButtonIcon = new ImageIcon("graphics/backButton.png");
+    ImageIcon humanPlayerIcon = new ImageIcon("graphics/humanPlayer.png");
+    ImageIcon aiPlayerIcon = new ImageIcon("graphics/aiPlayer.png");
+
+    // Frame
+    JFrame frame = new JFrame("Multiplayer Spiel");
+
+    // Labels
+    JLabel frameTitle = new JLabel("Multiplayer Spiel");
+    JLabel semesterlable = new JLabel("Semester");
+    JLabel PlayerName = new JLabel("Name");
+    JLabel PlayerIcon = new JLabel(humanPlayerIcon);
+    JLabel semesterCounterLabel = new JLabel(String.valueOf(semesterCounter));
+
+    // Buttons
+    JButton backButton = new JButton(backButtonIcon);
+    JButton PlayerLeftButton = new JButton("<-");
+    JButton PlayerRightButton = new JButton("->");
+    JButton semesterUpButton = new JButton("^");
+    JButton semesterDownButton = new JButton("v");
+    JButton createGameButton = new JButton("Spiel erstellen");
+    JButton joinGameButton = new JButton("Spiel beitreten");
+
+    // Textfelder
+    JTextField PlayerTextField = new JTextField(20);
+
+    startMultiplayerGame() {
+        // Erstelle Frame
+        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        frame.setSize(1500, 1000);
+
+        // Layout Manager (absolute ositionierung)
+        frame.setLayout(null);
+
+        // Erstelle Label
+        frameTitle.setBounds(20, 20, 200, 30);
+        frame.add(frameTitle);
+
+        semesterlable.setBounds(700, 300, 200, 30);
+        frame.add(semesterlable);
+
+        PlayerName.setBounds(50, 625, 200, 30);
+        frame.add(PlayerName);
+
+        PlayerIcon.setBounds(75, 400, 200, 128);
+        frame.add(PlayerIcon);
+
+        semesterCounterLabel.setBounds(725, 475, 50, 50); // zwischen den Up/Down-Buttons
+        semesterCounterLabel.setHorizontalAlignment(SwingConstants.CENTER);
+        frame.add(semesterCounterLabel);
+
+        // Erstellt Buttons
+        backButton.setBounds(1380, 20, 80, 80);
+        frame.add(backButton);
+
+        PlayerLeftButton.setBounds(50, 450, 50, 50);
+        frame.add(PlayerLeftButton);
+
+        PlayerRightButton.setBounds(250, 450, 50, 50);
+        frame.add(PlayerRightButton);
+
+        semesterUpButton.setBounds(725, 400, 50, 50);
+        frame.add(semesterUpButton);
+
+        semesterDownButton.setBounds(725, 550, 50, 50);
+        frame.add(semesterDownButton);
+
+        joinGameButton.setBounds(1100, 350, 200, 50);
+        frame.add(joinGameButton);
+
+        createGameButton.setBounds(1100, 550, 200, 50);
+        frame.add(createGameButton);
+
+        // Erstellt Textfelder
+        PlayerTextField.setBounds(50, 650, 250, 50);
+        frame.add(PlayerTextField);
+
+        //ZUSATZ
+        PlayerTextField.setText(PlayerNickname);
+
+        // ActionListener für die Buttons
+        // SEMESTERBUTTONS
+        semesterUpButton.addActionListener(new ActionListener() {
+            @Override
+            public void actionPerformed(ActionEvent e) {
+                if (semesterCounter < 6) {
+                    semesterCounter++;
+                    semesterCounterLabel.setText(String.valueOf(semesterCounter));
+                }
+            }
+        });
+
+        semesterDownButton.addActionListener(new ActionListener() {
+            @Override
+            public void actionPerformed(ActionEvent e) {
+                if (semesterCounter > 1) {  // Verhindert, dass der Wert unter 1 fällt
+                    semesterCounter--;
+                    semesterCounterLabel.setText(String.valueOf(semesterCounter));
+                }
+            }
+        });
+
+        // PLAYERTOGGLEBUTTONS
+
+        PlayerLeftButton.addActionListener(new ActionListener() {
+            @Override
+            public void actionPerformed(ActionEvent e) {
+                toggleLeftPlayerIcon();
+                updateTextFields();
+            }
+        });
+
+        PlayerRightButton.addActionListener(new ActionListener() {
+            @Override
+            public void actionPerformed(ActionEvent e) {
+                toggleLeftPlayerIcon();
+                updateTextFields();
+            }
+        });
+
+        frame.setVisible(true);
+    }
+
+    // TOGGLE METHODEN
+    // TODO Müssen evtl vergrößert werden je nach schwierigkeitsgraden
+    // dazu evt. übergabeparameter für links rechts gedrückt
+    private void toggleLeftPlayerIcon() {
+        if (PlayerIcon.getIcon() == humanPlayerIcon) {
+            PlayerIcon.setIcon(aiPlayerIcon);
+        } else {
+            PlayerIcon.setIcon(humanPlayerIcon);
+        }
+    }
+
+    private void updateTextFields() {
+        // Linker Spieler
+        if (PlayerIcon.getIcon() == humanPlayerIcon) {
+            PlayerTextField.setText(PlayerNickname);
+        } else {
+            PlayerTextField.setText("Leicht");
+        }
+    }
+
+        /* POTENTIELL VERALTET
+        leftPlayerLeftButton.addActionListener(new ActionListener() {
+            @Override
+            public void actionPerformed(ActionEvent e) {
+                ImageIcon MuteIcon = new ImageIcon("Grafik/sound button muted.png");
+                if(leftPlayerIcon.getIcon()==humanPlayerIcon) {
+                    leftPlayerIcon.setIcon(aiPlayerIcon);
+                }else{
+                    leftPlayerIcon.setIcon(humanPlayerIcon);
+                }
+            }
+        });
+
+        leftPlayerRightButton.addActionListener(new ActionListener() {
+            @Override
+            public void actionPerformed(ActionEvent e) {
+                ImageIcon MuteIcon = new ImageIcon("Grafik/sound button muted.png");
+                if(leftPlayerIcon.getIcon()==humanPlayerIcon) {
+                    leftPlayerIcon.setIcon(aiPlayerIcon);
+                }else{
+                    leftPlayerIcon.setIcon(humanPlayerIcon);
+                }
+            }
+        });
+
+        rightPlayerLeftButton.addActionListener(new ActionListener() {
+            @Override
+            public void actionPerformed(ActionEvent e) {
+                ImageIcon MuteIcon = new ImageIcon("Grafik/sound button muted.png");
+                if(rightPlayerIcon.getIcon()==humanPlayerIcon) {
+                    rightPlayerIcon.setIcon(aiPlayerIcon);
+                }else{
+                    rightPlayerIcon.setIcon(humanPlayerIcon);
+                }
+            }
+        });
+
+        rightPlayerRightButton.addActionListener(new ActionListener() {
+            @Override
+            public void actionPerformed(ActionEvent e) {
+                ImageIcon MuteIcon = new ImageIcon("Grafik/sound button muted.png");
+                if(rightPlayerIcon.getIcon()==humanPlayerIcon) {
+                    rightPlayerIcon.setIcon(aiPlayerIcon);
+                }else{
+                    rightPlayerIcon.setIcon(humanPlayerIcon);
+                }
+            }
+        });
+
+        frame.setVisible(true);
+        */
+}
+
+