diff --git a/Mine2d/+ b/Mine2d/+
deleted file mode 100644
index 1408d5e..0000000
--- a/Mine2d/+
+++ /dev/null
@@ -1,61 +0,0 @@
-using Mine2d.engine;
-using Mine2d.engine.system.annotations;
-using Mine2d.game.core.data.entities;
-
-namespace Mine2d.game.backend.interactor;
-
-[Interactor]
-public class ItemPhysics
-{
-
-    [Interaction(InteractorKind.Hybrid, "tick")]
-    public static void TickHybrid()
-    {
-        var gameState = Context.Get().GameState;
-        var world = gameState.World;
-        foreach (var chunk in world.Chunks)
-        {
-            var entities = chunk.Value.Entities;
-            foreach (var entity in entities)
-            {
-                if (entity is ItemEntity itemEntity)
-                {
-                    itemEntity.Velocity += new Vector2(0, 0.1f);
-                    var nextPos = itemEntity.Position + itemEntity.Velocity;
-                    if (world.HasChunkAt(nextPos) && world.GetChunkAt(nextPos).HasTileAt(nextPos))
-                    {
-                        itemEntity.Velocity = new Vector2(0, 0);
-                        continue;
-                    }
-                    itemEntity.Position = nextPos;
-                }
-            }
-        }
-    }
-
-    [Interaction(InteractorKind.Hybrid, "tick")]
-    public static void Pickup()
-    {
-        var gameState = Context.Get().GameState;
-        var world = gameState.World;
-        foreach (var chunk in world.Chunks)
-        {
-            var entities = chunk.Value.Entities;
-            foreach (var entity in entities)
-            {
-                foreach (var player in gameState.Players)
-                {
-
-                    var items = chunk.Value.Entities.RemoveAll(e =>
-                    {
-                        return e is ItemEntity itemEntity && (player.GetCenter() - itemEntity.Position).LengthSquared() < 8 * 8;
-                    });
-                    if (items > 0)
-                    {
-                        Context.Get().GameAudio.Play(Sound.ItemPickup);
-                    }
-                }
-            }
-        }
-    }
-}
diff --git a/Mine2d/assets/audio/block_hit_alt.wav b/Mine2d/assets/audio/block_hit_alt.wav
new file mode 100644
index 0000000..0484f04
Binary files /dev/null and b/Mine2d/assets/audio/block_hit_alt.wav differ
diff --git a/Mine2d/assets/hud/hotbar.png b/Mine2d/assets/hud/hotbar.png
new file mode 100644
index 0000000..bbc5313
Binary files /dev/null and b/Mine2d/assets/hud/hotbar.png differ
diff --git a/Mine2d/game/backend/interactor/ItemPhysics.cs b/Mine2d/game/backend/interactor/ItemPhysics.cs
index 060aea5..fe71785 100644
--- a/Mine2d/game/backend/interactor/ItemPhysics.cs
+++ b/Mine2d/game/backend/interactor/ItemPhysics.cs
@@ -1,5 +1,6 @@
 using Mine2d.engine;
 using Mine2d.engine.system.annotations;
+using Mine2d.game.core.data;
 using Mine2d.game.core.data.entities;
 
 namespace Mine2d.game.backend.interactor;
@@ -44,14 +45,17 @@ public class ItemPhysics
             foreach (var player in gameState.Players)
             {
 
-                var items = chunk.Value.Entities.RemoveAll(e =>
+                var items = chunk.Value.Entities.Where(e =>
                 {
-                    return e is ItemEntity itemEntity && (player.Position + new Vector2(7, 3) - itemEntity.Position).LengthSquared() < 8 * 8;
+                    return e is ItemEntity itemEntity &&
+                    (player.Position + new Vector2(7, 3) - itemEntity.Position).LengthSquared() < 8 * 8 &&
+                    player.inventory.PickupItemStack(new ItemStack { Id = itemEntity.ItemId, Count = 1 });
                 });
-                if (items > 0)
+                if (items.Any())
                 {
                     Context.Get().GameAudio.Play(Sound.ItemPickup);
                 }
+                _ = chunk.Value.Entities.RemoveAll(e => items.Contains(e));
             }
         }
     }
diff --git a/Mine2d/game/core/InventoryUtils.cs b/Mine2d/game/core/InventoryUtils.cs
new file mode 100644
index 0000000..cfcdec1
--- /dev/null
+++ b/Mine2d/game/core/InventoryUtils.cs
@@ -0,0 +1,25 @@
+using Mine2d.game.core.data;
+
+namespace Mine2d.game.core;
+
+public static class InventoryUtils
+{
+    public static int GetFirstMatchingSlot(ItemStack[] inventory, ItemId id)
+    {
+        for (var i = 0; i < inventory.Length; i++)
+        {
+            if (inventory[i] != null && inventory[i].Id == id)
+            {
+                return i;
+            }
+        }
+        for (var i = 0; i < inventory.Length; i++)
+        {
+            if (inventory[i] == null)
+            {
+                return i;
+            }
+        }
+        return -1;
+    }
+}
diff --git a/Mine2d/game/core/PlayerEntity.cs b/Mine2d/game/core/PlayerEntity.cs
index 7d1a3cb..f96daec 100644
--- a/Mine2d/game/core/PlayerEntity.cs
+++ b/Mine2d/game/core/PlayerEntity.cs
@@ -22,6 +22,13 @@ public class PlayerEntity
     {
         p.Movement += Constants.Gravity;
         p.Position += p.Movement;
+        if (p.Movement.Y > 8)
+        {
+            p.Movement = p.Movement with
+            {
+                Y = 8
+            };
+        }
     }
 
     public static void Collide(Player p)
diff --git a/Mine2d/game/core/data/ItemStack.cs b/Mine2d/game/core/data/ItemStack.cs
new file mode 100644
index 0000000..0b22406
--- /dev/null
+++ b/Mine2d/game/core/data/ItemStack.cs
@@ -0,0 +1,7 @@
+namespace Mine2d.game.core.data;
+
+public class ItemStack
+{
+    public ItemId Id { get; set; }
+    public int Count { get; set; }
+}
diff --git a/Mine2d/game/frontend/GameAudio.cs b/Mine2d/game/frontend/GameAudio.cs
index fd921e2..e8bf752 100644
--- a/Mine2d/game/frontend/GameAudio.cs
+++ b/Mine2d/game/frontend/GameAudio.cs
@@ -10,7 +10,7 @@ public class GameAudio
     {
         this.audioPlayer = new();
         this.audioPlayer.Register(Sound.BlockBreak, "assets.audio.block_break.wav");
-        this.audioPlayer.Register(Sound.BlockHit, "assets.audio.block_hit.wav");
+        this.audioPlayer.Register(Sound.BlockHit, "assets.audio.block_hit_alt.wav");
         this.audioPlayer.Register(Sound.ItemPickup, "assets.audio.item_pickup.wav");
     }
 
diff --git a/Mine2d/game/state/GameState.cs b/Mine2d/game/state/GameState.cs
index c33c2e8..92c6a5e 100644
--- a/Mine2d/game/state/GameState.cs
+++ b/Mine2d/game/state/GameState.cs
@@ -18,7 +18,7 @@ public class FrontendGameState
 
 public class Settings
 {
-    public int GameScale { get; set; } = 4;
+    public int GameScale { get; set; } = 6;
     public int UiScale { get; set; } = 4;
     public bool ShowCollision { get; set; } = true;
     public bool Fullscreen { get; set; } = false;
diff --git a/Mine2d/game/state/Player.cs b/Mine2d/game/state/Player.cs
index d1f4b18..18c3ac8 100644
--- a/Mine2d/game/state/Player.cs
+++ b/Mine2d/game/state/Player.cs
@@ -8,6 +8,7 @@ public class Player
     public Guid Id { get; set; }
     public Vector2 Mining { get; set; }
     public int MiningCooldown { get; set; }
+    public PlayerInventory inventory { get; set; } = new();
 
     public Vector2 GetCenter()
     {
diff --git a/Mine2d/game/state/PlayerInventory.cs b/Mine2d/game/state/PlayerInventory.cs
new file mode 100644
index 0000000..1c164a1
--- /dev/null
+++ b/Mine2d/game/state/PlayerInventory.cs
@@ -0,0 +1,27 @@
+using Mine2d.game.core;
+using Mine2d.game.core.data;
+
+namespace Mine2d.game.state;
+
+public class PlayerInventory
+{
+    public ItemStack[] Hotbar { get; set; } = new ItemStack[9];
+
+    public bool PickupItemStack(ItemStack itemStack)
+    {
+        var slot = InventoryUtils.GetFirstMatchingSlot(this.Hotbar, itemStack.Id);
+        if (slot == -1)
+        {
+            return false;
+        }
+        if (this.Hotbar[slot] == null)
+        {
+            this.Hotbar[slot] = itemStack;
+        }
+        else
+        {
+            this.Hotbar[slot].Count += itemStack.Count;
+        }
+        return true;
+    }
+}