diff --git a/Facepunch.Steamworks/SteamMatchmaking.cs b/Facepunch.Steamworks/SteamMatchmaking.cs
index 8a3e2ec..89798e8 100644
--- a/Facepunch.Steamworks/SteamMatchmaking.cs
+++ b/Facepunch.Steamworks/SteamMatchmaking.cs
@@ -12,6 +12,12 @@ namespace Steamworks
 	/// </summary>
 	public static class SteamMatchmaking
 	{
+		/// <summary>
+		/// Maximum number of characters a lobby metadata key can be
+		/// </summary>
+		internal static int MaxLobbyKeyLength => 255;
+
+
 		static ISteamMatchmaking _internal;
 
 		internal static ISteamMatchmaking Internal
@@ -37,7 +43,7 @@ internal static void InstallEvents()
 		{
 			LobbyInvite_t.Install( x => OnLobbyInvite?.Invoke( new Friend( x.SteamIDUser ), new Lobby( x.SteamIDLobby ) ) );
 
-			LobbyEnter_t.Install( x => OnLobbyEntered?.Invoke( new Lobby(x.SteamIDLobby ) ) );
+			LobbyEnter_t.Install( x => OnLobbyEntered?.Invoke( new Lobby( x.SteamIDLobby ) ) );
 
 			LobbyDataUpdate_t.Install( x =>
 			{
diff --git a/Facepunch.Steamworks/Structs/LobbyQuery.cs b/Facepunch.Steamworks/Structs/LobbyQuery.cs
index 36146d1..b52e5cf 100644
--- a/Facepunch.Steamworks/Structs/LobbyQuery.cs
+++ b/Facepunch.Steamworks/Structs/LobbyQuery.cs
@@ -43,6 +43,30 @@ public LobbyQuery FilterDistanceWorldwide()
 		}
 		#endregion
 
+		#region String key/value filter
+		internal MatchMakingKeyValuePair_t? stringFilter;
+
+		/// <summary>
+		/// Filter by specified key/value pair; string parameters
+		/// </summary>
+		public LobbyQuery FilterStringKeyValue( string nKey, string nValue )
+		{
+			if ( string.IsNullOrEmpty( nKey ) )
+				throw new System.ArgumentException( "Key string provided for LobbyQuery filter is null or empty", nameof( nKey ) );
+
+			if ( nKey.Length > SteamMatchmaking.MaxLobbyKeyLength )
+				throw new System.ArgumentException( "Key length is longer than MaxLobbyKeyLength", nameof( nKey ) );
+
+			stringFilter = new MatchMakingKeyValuePair_t
+			{
+				Key = nKey,
+				Value = nValue
+			};
+
+			return this;
+		}
+		#endregion
+
 		#region Slots Filter
 		internal int? slotsAvailable;
 
@@ -88,6 +112,11 @@ void ApplyFilters()
 			{
 				SteamMatchmaking.Internal.AddRequestLobbyListResultCountFilter( maxResults.Value );
 			}
+
+			if( stringFilter.HasValue )
+			{
+				SteamMatchmaking.Internal.AddRequestLobbyListStringFilter( stringFilter.Value.Key, stringFilter.Value.Value, LobbyComparison.Equal );
+			}
 		}
 
 		/// <summary>