diff --git a/Space4x/Assets/Scripts/Game/Clock.cs b/Space4x/Assets/Scripts/Game/Clock.cs
new file mode 100644
index 0000000..4db16ee
--- /dev/null
+++ b/Space4x/Assets/Scripts/Game/Clock.cs
@@ -0,0 +1,61 @@
+/**
+ * @file 
+ * 
+ * @author Aaron Moser
+ * 
+ * @package Assets.Scripts.Game
+ */
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+/**
+ * @section DESCRIPTION
+ * 
+ * Class contains functionality to simulate a day after n seconds.
+ */
+public class Clock : MonoBehaviour
+{
+    //---------------------------------------------------------------------------------------------------------------------------------------------------------------------
+    // Public values
+
+    /**
+     * Array of references to player managers.
+     */
+    public GameManager GameManager { private get; set; }
+
+    /**
+     * Length of a game day in seconds.
+     */
+    public float DayTime = 10.0f;
+
+    //---------------------------------------------------------------------------------------------------------------------------------------------------------------------
+    // Private values
+
+    //---------------------------------------------------------------------------------------------------------------------------------------------------------------------
+    // Public functions
+
+    //---------------------------------------------------------------------------------------------------------------------------------------------------------------------
+    // Private functions
+
+    /**
+     * Start is called before the first frame update.
+     * Sets up environment that @seeCallUpdateGame() is called every DayTime seconds.
+     */
+    void Start()
+    {
+        // CallUpdateGame will be called once each DayTime seconds
+        InvokeRepeating("CallUpdateGame", 0.0f, DayTime);
+    }
+
+    /**
+     * Calls update game of game manager.
+     */
+    private void CallUpdateGame()
+    {
+        if (GameManager != null)
+        {
+            GameManager.UpdateGame();
+        }
+    }
+}
diff --git a/Space4x/Assets/Scripts/Game/Clock.cs.meta b/Space4x/Assets/Scripts/Game/Clock.cs.meta
new file mode 100644
index 0000000..e05a25c
--- /dev/null
+++ b/Space4x/Assets/Scripts/Game/Clock.cs.meta
@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 0128bb3b379e8144eae3b33ceb9c4bfd
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Space4x/Assets/Scripts/Game/GameController.cs b/Space4x/Assets/Scripts/Game/GameController.cs
index cf26c05..494c7a7 100644
--- a/Space4x/Assets/Scripts/Game/GameController.cs
+++ b/Space4x/Assets/Scripts/Game/GameController.cs
@@ -1,51 +1,86 @@
+/**
+ * @file 
+ * 
+ * @author Aaron Moser
+ * 
+ * @package Assets.Scripts.Game.Controller
+ */
+
+/**
+ * @section DESCRIPTION
+ * 
+ * Class containing all controllers.
+ * 
+ * @todo should care about communication between controllers and models through interfaces.
+ */
 public class GameController
 {
-    /// <summary>
-    /// Reference to Game Model. Set through Game Manager.
-    /// </summary>
-    private GameModel oGameModel;
+    //---------------------------------------------------------------------------------------------------------------------------------------------------------------------
+    // Public values
 
-    /// <summary>
-    /// Reference to Game View. Set through Game Manager.
-    /// </summary>
-    private GameViewScript oGameView;
-
-    /// <summary>
-    /// Reference to Player Controller.
-    /// </summary>
+    /**
+     * Reference to Player Controller.
+     */
     public NPlayer.PlayerController oPlayerController;
 
-    /// <summary>
-    /// Reference to Research Queue Controller.
-    /// </summary>
+    /**
+     * Reference to Research Queue Controller.
+     */
     public NResearchController.ResearchQueueController oResearchQueueController;
 
-    /// <summary>
-    /// Reference to Research Cost Controller.
-    /// </summary>
+    /**
+     * Reference to Research Cost Controller.
+     */
     public NResearchController.ResearchCostController oResearchCostController;
 
-    /// <summary>
-    /// Reference to Research Tech Controller.
-    /// </summary>
+    /**
+     * Reference to Research Tech Controller.
+     */
     public NResearchController.ResearchTechController oResearchTechController;
 
+
+    /**
+     * Reference to Galaxy Controller.
+     */
     public NGalaxy.GalaxyController oGalaxyController;
 
+    /**
+     * Reference to Solar System Controller.
+     */
     public NSolarSystem.SolarSystemController oSolarSystemController;
 
+    /**
+     * Reference to Planet Controller.
+     */
     public NPlanet.PlanetController oPlanetController;
 
-    /// <summary>
-    /// Boolean signals SimulateDay if everything is initiated.
-    /// </summary>
+    //---------------------------------------------------------------------------------------------------------------------------------------------------------------------
+    // Private values
+
+    /**
+     * Reference to Game Model. Set through Game Manager.
+     */
+    private GameModel oGameModel;
+
+    /**
+     * Reference to Game View. Set through Game Manager.
+     */
+    private GameViewScript oGameView;
+
+    /**
+     * Boolean signals SimulateDay if everything is initiated.
+     */
     private bool bEverythingInitiated = false;
 
-    /// <summary>
-    /// Constructor of GameController class. Initializes all necessary parts of logic.
-    /// </summary>
-    /// <param name="oGameModel"></param>
-    /// <param name="oGameView"></param>
+    //---------------------------------------------------------------------------------------------------------------------------------------------------------------------
+    // Public functions
+
+    /**
+     * Constructor of GameController class. Initializes all necessary parts of logic.
+     * 
+     * @param oGameModel, reference to game model.
+     * @param oGameView, reference to game view.
+     */
     public GameController(GameModel oGameModel, GameViewScript oGameView)
     {
         this.oGameModel = oGameModel;
@@ -60,18 +95,37 @@ public class GameController
         bEverythingInitiated = true;
     }
 
-    /// <summary>
-    /// Sets iterative through all views their model reference.
-    /// Parent views call their childs SetGameModel().
-    /// </summary>
+    /**
+     * Every n seconds called from GameManager.
+     * Simulates a day of the game and updates all models and views by executing child controllers code.
+     */
+    public void SimulateDay()
+    {
+        if (bEverythingInitiated == true)
+        {
+            oResearchQueueController.SimulateDay();
+
+            SimulateDayPlayerModel();
+
+            oGameView.DailyUpdateView();
+        }
+    }
+
+    //---------------------------------------------------------------------------------------------------------------------------------------------------------------------
+    // Private functions
+
+    /**
+     * Sets iterative through all views their model reference.
+     * Parent views call their childs SetGameModel().
+     */
     private void InitViewModelRefs()
     {
         oGameView.SetGameModel(oGameModel);
     }
 
-    /// <summary>
-    /// Initializes the controllers.
-    /// </summary>
+    /**
+     * Initializes the controllers.
+     */
     private void InitControllers()
     {
         // Init player controller
@@ -88,22 +142,10 @@ public class GameController
         this.oPlanetController = new NPlanet.PlanetController(oGameModel.GalaxyModel.SolarSystemModels, oGameView.GalaxyView.oSolarSystemView.oPlanetView);
     }
 
-    /// <summary>
-    /// Every n seconds called from GameManager.
-    /// Simulates a day of the game and updates all models and views by executing child controllers code.
-    /// </summary>
-    public void SimulateDay()
-    {
-        if (bEverythingInitiated == true)
-        {
-            oResearchQueueController.SimulateDay();
-
-            SimulateDayPlayerModel();
-
-            oGameView.DailyUpdateView();
-        }
-    }
-
+    /**
+     * Called from @see SimulateDay().
+     * Simulates day for each player, updating their values.
+     */
     private void SimulateDayPlayerModel()
     {
         PlayerManager[] oPlayerManagers = oGameModel.PlayerModel.GetPlayerManagers();
diff --git a/Space4x/Assets/Scripts/Game/GameManager.cs b/Space4x/Assets/Scripts/Game/GameManager.cs
index 920f058..14137bb 100644
--- a/Space4x/Assets/Scripts/Game/GameManager.cs
+++ b/Space4x/Assets/Scripts/Game/GameManager.cs
@@ -1,17 +1,70 @@
+/**
+ * @file 
+ * 
+ * @author Aaron Moser
+ * 
+ * @package Assets.Scripts.Game
+ */
 using UnityEngine;
 
+/**
+ * @section DESCRIPTION
+ * 
+ * Class administrates top level of game.
+ */
 public class GameManager : MonoBehaviour
 {
-    // Clock which counts seconds until new day and updates playerManagers at new day
+    //---------------------------------------------------------------------------------------------------------------------------------------------------------------------
+    // Public values
+
+    // 
+
+    /**
+     * Clock reference, clock counts seconds until new day and calls @see UpdateGame() at new day
+     */
     public Clock oClock;
 
+    /**
+     * Reference to game view.
+     * 
+     * InvisibleObjectsCanvas.GameView
+     */
     public GameViewScript oGameView;
 
+    /**
+     * Reference to game model.
+     */
     public GameModel oGameModel;
 
+    /**
+     * Reference to game controller.
+     */
     public GameController oGameController;
 
-    // Start is called before the first frame update
+    //---------------------------------------------------------------------------------------------------------------------------------------------------------------------
+    // Private values
+
+    //---------------------------------------------------------------------------------------------------------------------------------------------------------------------
+    // Public functions
+
+    /**
+     * Updates game by calling SimulateDay() of game controller.
+     */
+    public void UpdateGame()
+    {
+        oGameController.SimulateDay();
+    }
+
+    //---------------------------------------------------------------------------------------------------------------------------------------------------------------------
+    // Private functions
+
+    // 
+
+    /**
+     * Start is called before the first frame update.
+     * 
+     * Sets clock, game model and game controller references.
+     */
     void Start()
     {
         oClock.GameManager = this;
@@ -21,9 +74,5 @@ public class GameManager : MonoBehaviour
         oGameController = new GameController(oGameModel, oGameView);
     }
 
-    // Updates game
-    public void UpdateGame()
-    {
-        oGameController.SimulateDay();
-    }
+    
 }
diff --git a/Space4x/Assets/Scripts/Game/GameModel.cs b/Space4x/Assets/Scripts/Game/GameModel.cs
index e4f408a..2e7a73f 100644
--- a/Space4x/Assets/Scripts/Game/GameModel.cs
+++ b/Space4x/Assets/Scripts/Game/GameModel.cs
@@ -1,14 +1,51 @@
+/**
+ * @file 
+ * 
+ * @author Aaron Moser
+ * 
+ * @package Assets.Scripts.Game.Model
+ */
+
+/**
+ * @section DESCRIPTION
+ * 
+ * Class contains model of game.
+ */
 public class GameModel
 {
+    //---------------------------------------------------------------------------------------------------------------------------------------------------------------------
+    // Public values
+
+    /**
+     * Reference to player model.
+     */
     public NPlayer.PlayerModel PlayerModel { get; set; }
 
+    /**
+     * Reference to galaxy model.
+     */
     public NGalaxy.GalaxyModel GalaxyModel { get; set; }
 
+    //---------------------------------------------------------------------------------------------------------------------------------------------------------------------
+    // Private values
+
+    //---------------------------------------------------------------------------------------------------------------------------------------------------------------------
+    // Public functions
+
+    /**
+     * Calls @see InitModels().
+     */
     public GameModel()
     {
         InitModels();
     }
 
+    //---------------------------------------------------------------------------------------------------------------------------------------------------------------------
+    // Private functions
+
+    /**
+     * Instantiates player and galaxy model.
+     */
     private void InitModels()
     {
         PlayerModel = new NPlayer.PlayerModel();
diff --git a/Space4x/Assets/Scripts/Game/GameViewScript.cs b/Space4x/Assets/Scripts/Game/GameViewScript.cs
index b141555..b6213fd 100644
--- a/Space4x/Assets/Scripts/Game/GameViewScript.cs
+++ b/Space4x/Assets/Scripts/Game/GameViewScript.cs
@@ -1,17 +1,61 @@
+/**
+ * @file 
+ * 
+ * @author Aaron Moser
+ * 
+ * @package Assets.Scripts.Game.View
+ */
 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
+/**
+ * @section DESCRIPTION
+ * 
+ * Class contains game view related functionality.
+ */
 public class GameViewScript : MonoBehaviour
 {
+    //---------------------------------------------------------------------------------------------------------------------------------------------------------------------
+    // Public values
+
+    /**
+     * Reference to research view.
+     * 
+     * InvisibleObjectsCanvas.GameView.ResearchView
+     */
     public ResearchViewScript ResearchView;
 
+    /**
+     * Reference to galaxy view.
+     * 
+     * InvisibleObjectsCanvas.GameView.GalaxyView
+     */
     public GalaxyViewScript GalaxyView;
 
+    /**
+     * Reference to resource view.
+     * 
+     * InvisibleObjectsCanvas.GameView.ResourceView
+     */
     public ResourceViewScript ResourceView;
 
+    //---------------------------------------------------------------------------------------------------------------------------------------------------------------------
+    // Private values
+
+    /**
+     * Reference to game model.
+     */
     private GameModel GameModel;
 
+    //---------------------------------------------------------------------------------------------------------------------------------------------------------------------
+    // Public functions
+
+    /**
+     * Sets reference of game model to oGameModel.
+     * 
+     * @param oGameModel, reference to game model.
+     */
     public void SetGameModel(GameModel oGameModel)
     {
         // Set own game model
@@ -23,9 +67,15 @@ public class GameViewScript : MonoBehaviour
         ResourceView.SetGameModel(oGameModel);
     }
 
+    /**
+     * Updates views every day.
+     */
     public void DailyUpdateView()
     {
         ResearchView.DailyUpdateView();
         ResourceView.DailyUpdateView();
     }
+
+    //---------------------------------------------------------------------------------------------------------------------------------------------------------------------
+    // Private functions
 }