diff --git a/src/main/java/de/hsfulda/onses/services/PlayerService.java b/src/main/java/de/hsfulda/onses/services/PlayerService.java
new file mode 100644
index 0000000..d726af8
--- /dev/null
+++ b/src/main/java/de/hsfulda/onses/services/PlayerService.java
@@ -0,0 +1,34 @@
+package de.hsfulda.onses.services;
+
+import de.hsfulda.onses.models.Player;
+
+import java.util.ArrayList;
+
+public class PlayerService {
+
+    private boolean currentTurn = true; // true --> real player, false --> Bot
+
+    private final ArrayList<Player> playerList = new ArrayList<>();
+
+    public ArrayList<Player> getPlayerList() {
+        return playerList;
+    }
+    public void addPlayerToList(Player player) {
+        playerList.add(player);
+    }
+
+    public void nextTurn()
+    {
+        currentTurn = !currentTurn;
+    }
+
+    public boolean getCurrentTurn() {
+        return currentTurn;
+    }
+
+    public PlayerService setCurrentTurn(boolean currentTurn) {
+        this.currentTurn = currentTurn;
+        return this;
+    }
+
+}
diff --git a/src/test/java/de/hsfulda/onses/PlayerServiceTest.java b/src/test/java/de/hsfulda/onses/PlayerServiceTest.java
new file mode 100644
index 0000000..08630c6
--- /dev/null
+++ b/src/test/java/de/hsfulda/onses/PlayerServiceTest.java
@@ -0,0 +1,73 @@
+
+package de.hsfulda.onses;
+
+import de.hsfulda.onses.services.PlayerService;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.*;
+
+import de.hsfulda.onses.models.Player;
+
+public class PlayerServiceTest {
+
+    @Test
+    @DisplayName("addPlayerToPlayerList")
+    void addPlayerToPlayerList() {
+        //arrange
+        Player input = new Player();
+        Player expected = input;
+        // act
+        PlayerService playerservice = new PlayerService();
+        playerservice.addPlayerToList(input);
+        Player answer = playerservice.getPlayerList().getFirst();
+        // assert
+        assertEquals(expected, answer);
+    }
+
+    @Test
+    @DisplayName("addMultiplePlayerToPlayerList")
+    void addMultiplePlayerToPlayerList() {
+        //arrange
+        Player input1 = new Player();
+        Player expected1 = input1;
+        Player input2 = new Player();
+        Player expected2 = input2;
+        // act
+        PlayerService playerservice = new PlayerService();
+        playerservice.addPlayerToList(input1);
+        playerservice.addPlayerToList(input2);
+
+        Player answer1 = playerservice.getPlayerList().getFirst();
+        Player answer2 = playerservice.getPlayerList().get(1);
+        // assert
+        assertEquals(expected1, answer1);
+        assertEquals(expected2, answer2);
+    }
+    @Test
+    @DisplayName("checkCurrentTurnAfterNextTurn")
+    void checkCurrentTurnAfterNextTurn() {
+        //arrange
+        boolean expected = true;
+        // act
+        PlayerService playerservice = new PlayerService();
+        playerservice.setCurrentTurn(false);
+        playerservice.nextTurn();
+        boolean answer = playerservice.getCurrentTurn();
+        // assert
+        assertEquals(expected, answer);
+    }
+    @Test
+    @DisplayName("checkCurrentTurnAfterTwoTurns")
+    void checkCurrentTurnAfterTwoTurns() {
+        //arrange
+        boolean expected = false;
+        // act
+        PlayerService playerservice = new PlayerService();
+        playerservice.setCurrentTurn(false);
+        playerservice.nextTurn();
+        playerservice.nextTurn();
+        boolean answer = playerservice.getCurrentTurn();
+        // assert
+        assertEquals(expected, answer);
+    }
+}