diff --git a/src/RavenNest.Blazor/Controllers/ItemsController.cs b/src/RavenNest.Blazor/Controllers/ItemsController.cs
index ec861a3d..16541de0 100644
--- a/src/RavenNest.Blazor/Controllers/ItemsController.cs
+++ b/src/RavenNest.Blazor/Controllers/ItemsController.cs
@@ -46,6 +46,18 @@ public async Task<ActionResult<ItemCollection>> Get()
             return itemCollection;
         }
 
+        [HttpGet("delta/{timestamp}")]
+        public async Task<ActionResult<ItemCollection>> Get(DateTime timestamp)
+        {
+            if (itemManager == null)
+            {
+                return new ItemCollection();
+            }
+
+            var itemCollection = itemManager.GetAllItems(timestamp);
+            return itemCollection;
+        }
+
         /// <summary>
         /// Get all redeemable items
         /// </summary>
diff --git a/src/RavenNest.BusinessLogic/Game/Managers/ItemManager.cs b/src/RavenNest.BusinessLogic/Game/Managers/ItemManager.cs
index 208f1c39..b4179a36 100644
--- a/src/RavenNest.BusinessLogic/Game/Managers/ItemManager.cs
+++ b/src/RavenNest.BusinessLogic/Game/Managers/ItemManager.cs
@@ -38,6 +38,22 @@ public ItemCollection GetAllItems()
             return InvalidateCache();
         }
 
+        public ItemCollection GetAllItems(DateTime timestamp)
+        {
+            var items = gameData.GetItems();
+            var collection = new ItemCollection();
+            foreach (var item in items)
+            {
+                if (item.Hidden || item.Modified < timestamp)
+                {
+                    continue;
+                }
+
+                collection.Add(ModelMapper.Map(gameData, item));
+            }
+            return collection;
+        }
+
         public Item GetItem(Guid itemId)
         {
             var dataItem = gameData.GetItem(itemId);
@@ -96,6 +112,8 @@ private void AddItem(Item item)
                 item.RequiredCraftingLevel = GameMath.MaxLevel + 1;
             }
 
+            entity.Modified = DateTime.UtcNow;
+
             gameData.Add(entity);
             InvalidateCache();
         }
@@ -166,6 +184,13 @@ private void UpdateItem(Item item, DataModels.Item dataItem)
 
             dataItem.Level = item.Level;
             dataItem.ArmorPower = item.ArmorPower;
+            dataItem.WeaponAim = item.WeaponAim;
+            dataItem.WeaponPower = item.WeaponPower;
+            dataItem.MagicPower = item.MagicPower;
+            dataItem.MagicAim = item.MagicAim;
+            dataItem.RangedPower = item.RangedPower;
+            dataItem.RangedAim = item.RangedAim;
+
             dataItem.Category = (int)item.Category;
             dataItem.Craftable = item.Craftable;
             dataItem.FemaleModelId = item.FemaleModelId;
@@ -188,11 +213,8 @@ private void UpdateItem(Item item, DataModels.Item dataItem)
             dataItem.ShopSellPrice = item.ShopSellPrice;
             dataItem.Soulbound = item.Soulbound;
             dataItem.Type = (int)item.Type;
-            dataItem.WeaponAim = item.WeaponAim;
-            dataItem.WeaponPower = item.WeaponPower;
             dataItem.WoodCost = item.WoodCost;
-
-
+            dataItem.Modified = DateTime.UtcNow;
 
             InvalidateCache();
         }
diff --git a/src/RavenNest.DataModels/Item.cs b/src/RavenNest.DataModels/Item.cs
index 8cdee1fe..f395cead 100644
--- a/src/RavenNest.DataModels/Item.cs
+++ b/src/RavenNest.DataModels/Item.cs
@@ -50,5 +50,6 @@ public partial class Item : Entity<Item>
         public long ShopSellPrice { get => shopSellPrice; set => Set(ref shopSellPrice, value); }
         private bool soulbound; public bool Soulbound { get => soulbound; set => Set(ref soulbound, value); }
         private bool hidden; public bool Hidden { get => hidden; set => Set(ref hidden, value); }
+        private DateTime? modified; public DateTime? Modified { get => modified; set => Set(ref modified, value); }
     }
 }
diff --git a/src/RavenNest.Models/Item.cs b/src/RavenNest.Models/Item.cs
index 1e9ad153..e460113f 100644
--- a/src/RavenNest.Models/Item.cs
+++ b/src/RavenNest.Models/Item.cs
@@ -40,5 +40,6 @@ public class Item
         public long ShopSellPrice { get; set; }
         public List<ItemCraftingRequirement> CraftingRequirements { get; set; }
         public bool Soulbound { get; set; }
+        public DateTime? Modified { get; set; }
     }
 }