diff --git a/osu.Game/Online/Multiplayer/CreateRoomScoreRequest.cs b/osu.Game/Online/Multiplayer/CreateRoomScoreRequest.cs
index f973f96b37..2d99b12519 100644
--- a/osu.Game/Online/Multiplayer/CreateRoomScoreRequest.cs
+++ b/osu.Game/Online/Multiplayer/CreateRoomScoreRequest.cs
@@ -11,17 +11,20 @@ namespace osu.Game.Online.Multiplayer
     {
         private readonly int roomId;
         private readonly int playlistItemId;
+        private readonly string versionHash;
 
-        public CreateRoomScoreRequest(int roomId, int playlistItemId)
+        public CreateRoomScoreRequest(int roomId, int playlistItemId, string versionHash)
         {
             this.roomId = roomId;
             this.playlistItemId = playlistItemId;
+            this.versionHash = versionHash;
         }
 
         protected override WebRequest CreateWebRequest()
         {
             var req = base.CreateWebRequest();
             req.Method = HttpMethod.Post;
+            req.AddParameter("version_hash", versionHash);
             return req;
         }
 
diff --git a/osu.Game/OsuGameBase.cs b/osu.Game/OsuGameBase.cs
index fe5c0704b7..278f2d849f 100644
--- a/osu.Game/OsuGameBase.cs
+++ b/osu.Game/OsuGameBase.cs
@@ -11,6 +11,7 @@ using osu.Framework.Allocation;
 using osu.Framework.Audio;
 using osu.Framework.Bindables;
 using osu.Framework.Development;
+using osu.Framework.Extensions;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Framework.IO.Stores;
@@ -97,6 +98,11 @@ namespace osu.Game
 
         public virtual Version AssemblyVersion => Assembly.GetEntryAssembly()?.GetName().Version ?? new Version();
 
+        /// <summary>
+        /// MD5 representation of the game executable.
+        /// </summary>
+        public string VersionHash { get; private set; }
+
         public bool IsDeployedBuild => AssemblyVersion.Major > 0;
 
         public virtual string Version
@@ -128,6 +134,9 @@ namespace osu.Game
         [BackgroundDependencyLoader]
         private void load()
         {
+            using (var str = File.OpenRead(typeof(OsuGameBase).Assembly.Location))
+                VersionHash = str.ComputeMD5Hash();
+
             Resources.AddStore(new DllResourceStore(OsuResources.ResourceAssembly));
 
             dependencies.Cache(contextFactory = new DatabaseContextFactory(Storage));
diff --git a/osu.Game/Screens/Multi/Play/TimeshiftPlayer.cs b/osu.Game/Screens/Multi/Play/TimeshiftPlayer.cs
index c2381fe219..da082692d7 100644
--- a/osu.Game/Screens/Multi/Play/TimeshiftPlayer.cs
+++ b/osu.Game/Screens/Multi/Play/TimeshiftPlayer.cs
@@ -58,7 +58,7 @@ namespace osu.Game.Screens.Multi.Play
             if (!playlistItem.RequiredMods.All(m => Mods.Value.Any(m.Equals)))
                 throw new InvalidOperationException("Current Mods do not match PlaylistItem's RequiredMods");
 
-            var req = new CreateRoomScoreRequest(roomId.Value ?? 0, playlistItem.ID);
+            var req = new CreateRoomScoreRequest(roomId.Value ?? 0, playlistItem.ID, Game.VersionHash);
             req.Success += r => token = r.ID;
             req.Failure += e =>
             {