diff --git a/dll/dll/steam_masterserver_updater.h b/dll/dll/steam_masterserver_updater.h
index c278ef29..9b52d523 100644
--- a/dll/dll/steam_masterserver_updater.h
+++ b/dll/dll/steam_masterserver_updater.h
@@ -18,7 +18,10 @@
 #ifndef __INCLUDED_STEAM_MASTERSERVER_UPDATER_H__
 #define __INCLUDED_STEAM_MASTERSERVER_UPDATER_H__
 
+
 #include "base.h"
+#include "dll/steam_gameserver.h"
+
 
 class Steam_Masterserver_Updater :
 public ISteamMasterServerUpdater
@@ -28,6 +31,7 @@ public ISteamMasterServerUpdater
     class SteamCallResults *callback_results{};
     class SteamCallBacks *callbacks{};
     class RunEveryRunCB *run_every_runcb{};
+    class Steam_GameServer *gameserver{};
 
     static void steam_callback(void *object, Common_Message *msg);
     static void steam_run_every_runcb(void *object);
@@ -36,7 +40,7 @@ public ISteamMasterServerUpdater
     void Callback(Common_Message *msg);
 
 public:
-    Steam_Masterserver_Updater(class Settings *settings, class Networking *network, class SteamCallResults *callback_results, class SteamCallBacks *callbacks, class RunEveryRunCB *run_every_runcb);
+    Steam_Masterserver_Updater(class Settings *settings, class Networking *network, class SteamCallResults *callback_results, class SteamCallBacks *callbacks, class RunEveryRunCB *run_every_runcb, class Steam_GameServer *gameserver);
     ~Steam_Masterserver_Updater();
 
     // Call this as often as you like to tell the master server updater whether or not
diff --git a/dll/steam_client.cpp b/dll/steam_client.cpp
index 8aadadd8..fc336d45 100644
--- a/dll/steam_client.cpp
+++ b/dll/steam_client.cpp
@@ -143,7 +143,7 @@ Steam_Client::Steam_Client()
     steam_gameserver_networking_sockets_serialized = new Steam_Networking_Sockets_Serialized(settings_server, network, callback_results_server, callbacks_server, run_every_runcb);
     steam_gameserver_networking_messages = new Steam_Networking_Messages(settings_server, network, callback_results_server, callbacks_server, run_every_runcb);
     steam_gameserver_game_coordinator = new Steam_Game_Coordinator(settings_server, network, callback_results_server, callbacks_server, run_every_runcb);
-    steam_masterserver_updater = new Steam_Masterserver_Updater(settings_server, network, callback_results_server, callbacks_server, run_every_runcb);
+    steam_masterserver_updater = new Steam_Masterserver_Updater(settings_server, network, callback_results_server, callbacks_server, run_every_runcb, steam_gameserver);
     steam_gameserver_gamestats = new Steam_GameStats(settings_server, network, callback_results_server, callbacks_server, run_every_runcb);
 
     PRINT_DEBUG("init AppTicket");
diff --git a/dll/steam_gameserver.cpp b/dll/steam_gameserver.cpp
index 78c8fe82..2b200554 100644
--- a/dll/steam_gameserver.cpp
+++ b/dll/steam_gameserver.cpp
@@ -789,6 +789,7 @@ void Steam_GameServer::ForceHeartbeat()
 void Steam_GameServer::ForceMasterServerHeartbeat_DEPRECATED()
 {
     PRINT_DEBUG_TODO();
+    ForceHeartbeat();
 }
 
 
@@ -845,12 +846,14 @@ void Steam_GameServer::RunCallbacks()
     }
 
     if (temp_call_servers_disconnected) {
-        SteamServersDisconnected_t data;
+        PRINT_DEBUG("Gameserver is disconnected");
+        SteamServersDisconnected_t data{};
         data.m_eResult = k_EResultOK;
         callbacks->addCBResult(data.k_iCallback, &data, sizeof(data));
 
         if (!logged_in) {
-            Common_Message msg;
+            PRINT_DEBUG("notifying all that Gameserver is not logged in");
+            Common_Message msg{};
             msg.set_source_id(settings->get_local_steam_id().ConvertToUint64());
             msg.set_allocated_gameserver(new Gameserver(server_data));
             msg.mutable_gameserver()->set_offline(true);
diff --git a/dll/steam_masterserver_updater.cpp b/dll/steam_masterserver_updater.cpp
index 965e99dc..b63e77d4 100644
--- a/dll/steam_masterserver_updater.cpp
+++ b/dll/steam_masterserver_updater.cpp
@@ -18,6 +18,11 @@
 #include "dll/steam_masterserver_updater.h"
 
 
+// old games like appid 50300 use this interface instead of ISteamGameServer
+// we use it as a proxy for ISteamGameServer since it has an equivalent API
+// and handles the actual game server logic
+
+
 void Steam_Masterserver_Updater::steam_callback(void *object, Common_Message *msg)
 {
     // PRINT_DEBUG_ENTRY();
@@ -35,13 +40,14 @@ void Steam_Masterserver_Updater::steam_run_every_runcb(void *object)
 }
 
 
-Steam_Masterserver_Updater::Steam_Masterserver_Updater(class Settings *settings, class Networking *network, class SteamCallResults *callback_results, class SteamCallBacks *callbacks, class RunEveryRunCB *run_every_runcb)
+Steam_Masterserver_Updater::Steam_Masterserver_Updater(class Settings *settings, class Networking *network, class SteamCallResults *callback_results, class SteamCallBacks *callbacks, class RunEveryRunCB *run_every_runcb, class Steam_GameServer *gameserver)
 {
     this->settings = settings;
     this->network = network;
     this->callback_results = callback_results;
     this->callbacks = callbacks;
     this->run_every_runcb = run_every_runcb;
+    this->gameserver = gameserver;
     
     this->network->setCallback(CALLBACK_ID_USER_STATUS, settings->get_local_steam_id(), &Steam_Masterserver_Updater::steam_callback, this);
     this->run_every_runcb->add(&Steam_Masterserver_Updater::steam_run_every_runcb, this);
@@ -60,6 +66,8 @@ void Steam_Masterserver_Updater::SetActive( bool bActive )
 {
     PRINT_DEBUG_TODO();
     std::lock_guard<std::recursive_mutex> lock(global_mutex);
+
+    gameserver->EnableHeartbeats(bActive);
 }
 
 
@@ -70,6 +78,8 @@ void Steam_Masterserver_Updater::SetHeartbeatInterval( int iHeartbeatInterval )
 {
     PRINT_DEBUG_TODO();
     std::lock_guard<std::recursive_mutex> lock(global_mutex);
+    
+    gameserver->SetHeartbeatInterval(iHeartbeatInterval);
 }
 
 
@@ -93,7 +103,8 @@ bool Steam_Masterserver_Updater::HandleIncomingPacket( const void *pData, int cb
 {
     PRINT_DEBUG_TODO();
     std::lock_guard<std::recursive_mutex> lock(global_mutex);
-    return true;
+    
+    return gameserver->HandleIncomingPacket(pData, cbData, srcIP, srcPort);
 }
 
 
@@ -105,7 +116,8 @@ int Steam_Masterserver_Updater::GetNextOutgoingPacket( void *pOut, int cbMaxOut,
 {
     PRINT_DEBUG_TODO();
     std::lock_guard<std::recursive_mutex> lock(global_mutex);
-    return 0;
+    
+    return gameserver->GetNextOutgoingPacket(pOut, cbMaxOut, pNetAdr, pPort);
 }
 
 
@@ -124,6 +136,13 @@ void Steam_Masterserver_Updater::SetBasicServerData(
 {
     PRINT_DEBUG_TODO();
     std::lock_guard<std::recursive_mutex> lock(global_mutex);
+    
+    gameserver->SetDedicatedServer(bDedicatedServer);
+    gameserver->SetRegion(pRegionName);
+    gameserver->SetProduct(pProductName);
+    gameserver->SetMaxPlayerCount(nMaxReportedClients);
+    gameserver->SetPasswordProtected(bPasswordProtected);
+    gameserver->SetGameDescription(pGameDescription);
 }
 
 
@@ -132,6 +151,8 @@ void Steam_Masterserver_Updater::ClearAllKeyValues()
 {
     PRINT_DEBUG_TODO();
     std::lock_guard<std::recursive_mutex> lock(global_mutex);
+    
+    gameserver->ClearAllKeyValues();
 }
 
 
@@ -140,6 +161,8 @@ void Steam_Masterserver_Updater::SetKeyValue( const char *pKey, const char *pVal
 {
     PRINT_DEBUG("TODO '%s'='%s'", pKey, pValue);
     std::lock_guard<std::recursive_mutex> lock(global_mutex);
+    
+    gameserver->SetKeyValue(pKey, pValue);
 }
 
 
@@ -150,6 +173,8 @@ void Steam_Masterserver_Updater::NotifyShutdown()
 {
     PRINT_DEBUG_TODO();
     std::lock_guard<std::recursive_mutex> lock(global_mutex);
+    
+    gameserver->LogOff();
 }
 
 
@@ -159,7 +184,8 @@ bool Steam_Masterserver_Updater::WasRestartRequested()
 {
     PRINT_DEBUG_TODO();
     std::lock_guard<std::recursive_mutex> lock(global_mutex);
-    return false;
+    
+    return gameserver->WasRestartRequested();
 }
 
 
@@ -168,6 +194,8 @@ void Steam_Masterserver_Updater::ForceHeartbeat()
 {
     PRINT_DEBUG_TODO();
     std::lock_guard<std::recursive_mutex> lock(global_mutex);
+    
+    gameserver->ForceHeartbeat();
 }