diff --git a/Facepunch.Steamworks/BaseSteamworks.cs b/Facepunch.Steamworks/BaseSteamworks.cs
index 04160fa..435890c 100644
--- a/Facepunch.Steamworks/BaseSteamworks.cs
+++ b/Facepunch.Steamworks/BaseSteamworks.cs
@@ -89,6 +89,14 @@ namespace Facepunch.Steamworks
 
             Networking.Update();
 
+            RunUpdateCallbacks();
+        }
+
+        /// <summary>
+        /// This gets called automatically in Update. Only call it manually if you know why you're doing it.
+        /// </summary>
+        public void RunUpdateCallbacks()
+        {
             if ( OnUpdate != null )
                 OnUpdate();
         }
diff --git a/Facepunch.Steamworks/Client.cs b/Facepunch.Steamworks/Client.cs
index 4b462a1..4f8531d 100644
--- a/Facepunch.Steamworks/Client.cs
+++ b/Facepunch.Steamworks/Client.cs
@@ -73,13 +73,20 @@ namespace Facepunch.Steamworks
             if ( !IsValid )
                 return;
 
-            native.api.SteamAPI_RunCallbacks();
-
+            RunCallbacks();
             Voice.Update();
 
             base.Update();            
         }
 
+        /// <summary>
+        /// This is called in Update() - there's no need to call it manually unless you're running your own Update
+        /// </summary>
+        public void RunCallbacks()
+        {
+            native.api.SteamAPI_RunCallbacks();
+        }
+
         /// <summary>
         /// Call when finished to shut down the Steam client.
         /// </summary>
diff --git a/Facepunch.Steamworks/Client/Voice.cs b/Facepunch.Steamworks/Client/Voice.cs
index 1c46850..c0ea64d 100644
--- a/Facepunch.Steamworks/Client/Voice.cs
+++ b/Facepunch.Steamworks/Client/Voice.cs
@@ -88,7 +88,10 @@ namespace Facepunch.Steamworks
             Marshal.FreeHGlobal( UncompressBuffer );
         }
 
-        internal void Update()
+        /// <summary>
+        /// This gets called inside Update - so there's no need to call this manually if you're calling update
+        /// </summary>
+        public void Update()
         {
             if ( OnCompressedData == null && OnUncompressedData == null )
                 return;
diff --git a/Facepunch.Steamworks/Interfaces/Inventory.cs b/Facepunch.Steamworks/Interfaces/Inventory.cs
index ef643c3..d08fd30 100644
--- a/Facepunch.Steamworks/Interfaces/Inventory.cs
+++ b/Facepunch.Steamworks/Interfaces/Inventory.cs
@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.Linq;
 using System.Runtime.InteropServices;
 using System.Text;
@@ -36,6 +37,8 @@ namespace Facepunch.Steamworks
 
         internal SteamNative.SteamInventory inventory;
 
+        private Stopwatch fetchRetryTimer;
+
         private bool IsServer { get; set; }
 
         internal Inventory( BaseSteamworks steamworks, SteamNative.SteamInventory c, bool server )
@@ -214,12 +217,26 @@ namespace Facepunch.Steamworks
         }
 
         /// <summary>
-        /// Called every frame
+        /// No need to call this manually if you're calling Update
         /// </summary>
-        internal void Update()
+        public void Update()
         {
             if ( Definitions == null )
             {
+                //
+                // Don't try every frame, just try every 10 seconds.
+                //
+                {
+                    if ( fetchRetryTimer != null && fetchRetryTimer.Elapsed.TotalSeconds < 10.0f )
+                        return;
+
+                    if ( fetchRetryTimer == null )
+                        fetchRetryTimer = Stopwatch.StartNew();
+
+                    fetchRetryTimer.Reset();
+                    fetchRetryTimer.Start();
+                }
+
                 FetchItemDefinitions();
                 inventory.LoadItemDefinitions();
             }
diff --git a/Facepunch.Steamworks/Interfaces/Networking.cs b/Facepunch.Steamworks/Interfaces/Networking.cs
index 15c29fd..f29b40b 100644
--- a/Facepunch.Steamworks/Interfaces/Networking.cs
+++ b/Facepunch.Steamworks/Interfaces/Networking.cs
@@ -38,7 +38,10 @@ namespace Facepunch.Steamworks
         }
 
 
-        internal void Update()
+        /// <summary>
+        /// No need to call this manually if you're calling Update()
+        /// </summary>
+        public void Update()
         {
             if ( OnP2PData == null )
                 return;