diff --git a/Assets/Scenes/TestScene.unity b/Assets/Scenes/TestScene.unity
index 4f35693..16dfa3e 100644
--- a/Assets/Scenes/TestScene.unity
+++ b/Assets/Scenes/TestScene.unity
@@ -959,6 +959,7 @@ GameObject:
   serializedVersion: 6
   m_Component:
   - component: {fileID: 1067101117}
+  - component: {fileID: 1067101118}
   m_Layer: 0
   m_Name: GameManager
   m_TagString: GameController
@@ -980,6 +981,18 @@ Transform:
   m_Father: {fileID: 0}
   m_RootOrder: 0
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
+--- !u!114 &1067101118
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 1067101116}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: cb5ee5f3d2923ee4faeaf50ed35ab2f5, type: 3}
+  m_Name: 
+  m_EditorClassIdentifier: 
 --- !u!1 &1111479331 stripped
 GameObject:
   m_CorrespondingSourceObject: {fileID: 2550463727306718371, guid: 823e8b39d52b71b4eb5a91dbc8d6d59e, type: 3}
diff --git a/Assets/Scripts/GameManager/PlayerMaster.cs b/Assets/Scripts/GameManager/PlayerMaster.cs
new file mode 100644
index 0000000..83220bc
--- /dev/null
+++ b/Assets/Scripts/GameManager/PlayerMaster.cs
@@ -0,0 +1,51 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+/*
+JOIN
+1. Wenn ein Spieler joined wird sichergestellt, dass er nicht in der Liste ist (fürs error handling).
+2. Dann wird er in die Liste "Players" eingetragen und ein Eintrag in der "health" liste wird mit dem selben index gemacht.
+
+LEAVE
+1. Index von dem Spieler, in der Liste, wird gesucht
+2. Spieler wird aus der Liste entfernt
+3. health index vom spieler wird auch entfernt
+
+*/
+public class PlayerMaster : MonoBehaviour
+{
+    [SerializeField] private List<GameObject> Players = new List<GameObject>();
+    [SerializeField] private List<int> Health = new List<int>();
+
+    private void Start()
+    {
+        Players.AddRange(GameObject.FindGameObjectsWithTag("Player"));
+    }
+
+    public void OnPlayerJoin(GameObject player)
+    {
+        Debug.Log("Player joined");
+        if (!Players.Contains(player))
+        {
+            Players.Add(player);
+            Debug.Log("Player added to list");
+        }
+        else
+        {
+            Debug.LogError("Player already exits in list");
+        }
+    }
+
+    public void OnPlayerLeave(GameObject player)
+    {
+        Debug.Log("Player left");
+        if (Players.Contains(player))
+        {
+            Players.Remove(player);
+        }
+        else
+        {
+            Debug.LogError("Player not found in Players-list");
+        }
+    }
+}
diff --git a/Assets/Scripts/GameManager/PlayerMaster.cs.meta b/Assets/Scripts/GameManager/PlayerMaster.cs.meta
new file mode 100644
index 0000000..7d2a5b1
--- /dev/null
+++ b/Assets/Scripts/GameManager/PlayerMaster.cs.meta
@@ -0,0 +1,11 @@
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+guid: cb5ee5f3d2923ee4faeaf50ed35ab2f5
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
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