diff --git a/dll/dll/appticket.h b/dll/dll/appticket.h
index 94f92e7a..a813ca59 100644
--- a/dll/dll/appticket.h
+++ b/dll/dll/appticket.h
@@ -1,3 +1,25 @@
+/* Copyright (C) 2019 Mr Goldberg
+   This file is part of the Goldberg Emulator
+
+   The Goldberg Emulator is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 3 of the License, or (at your option) any later version.
+
+   The Goldberg Emulator is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the Goldberg Emulator; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef __INCLUDED_STEAM_APP_TICKET_H__
+#define __INCLUDED_STEAM_APP_TICKET_H__
+
+#include "base.h"
+#include "steam/isteamappticket.h"
 
 struct AppTicketV1
 {
@@ -297,4 +319,30 @@ public:
 
         return buffer;
     }
-};
\ No newline at end of file
+};
+
+
+class Steam_AppTicket :
+public ISteamAppTicket
+{
+private:
+    class Settings *settings;
+
+public:
+    Steam_AppTicket(class Settings *settings) :
+        settings(settings)
+    {
+
+    }
+
+    virtual uint32 GetAppOwnershipTicketData( uint32 nAppID, void *pvBuffer, uint32 cbBufferLength, uint32 *piAppId, uint32 *piSteamId, uint32 *piSignature, uint32 *pcbSignature )
+    {
+        PRINT_DEBUG("TODO GetAppOwnershipTicketData: %u, %p, %u, %p, %p, %p, %p\n", nAppID, pvBuffer, cbBufferLength, piAppId, piSteamId, piSignature, pcbSignature);
+        std::lock_guard<std::recursive_mutex> lock(global_mutex);
+
+        return 0;
+
+    }
+};
+
+#endif // __INCLUDED_STEAM_APP_TICKET_H__
diff --git a/dll/dll/steam_client.h b/dll/dll/steam_client.h
index b7c08561..73a74e5d 100644
--- a/dll/dll/steam_client.h
+++ b/dll/dll/steam_client.h
@@ -16,6 +16,7 @@
    <http://www.gnu.org/licenses/>.  */
 
 #include "base.h"
+#include "appticket.h"
 #include "steam_user.h"
 #include "steam_friends.h"
 #include "steam_utils.h"
@@ -127,6 +128,7 @@ public:
     Steam_Networking_Messages *steam_gameserver_networking_messages;
     Steam_Game_Coordinator *steam_gameserver_game_coordinator;
     Steam_Masterserver_Updater *steam_masterserver_updater;
+    Steam_AppTicket *steam_app_ticket;
 
     Steam_Overlay* steam_overlay;
 
@@ -284,6 +286,8 @@ public:
 
     // Steam Remote Play interface
     ISteamRemotePlay *GetISteamRemotePlay( HSteamUser hSteamUser, HSteamPipe hSteamPipe, const char *pchVersion );
+    
+    ISteamAppTicket *GetAppTicket( HSteamUser hSteamUser, HSteamPipe hSteamPipe, const char *pchVersion );
 
     void RegisterCallback( class CCallbackBase *pCallback, int iCallback);
     void UnregisterCallback( class CCallbackBase *pCallback);
diff --git a/dll/steam_client.cpp b/dll/steam_client.cpp
index 55183ad9..6520feb1 100644
--- a/dll/steam_client.cpp
+++ b/dll/steam_client.cpp
@@ -117,6 +117,9 @@ Steam_Client::Steam_Client()
     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);
 
+    PRINT_DEBUG("client init AppTicket\n");
+    steam_app_ticket = new Steam_AppTicket(settings_client);
+
     gameserver_has_ipv6_functions = false;
 
     last_cb_run = 0;
@@ -705,6 +708,8 @@ void *Steam_Client::GetISteamGenericInterface( HSteamUser hSteamUser, HSteamPipe
         return GetISteamRemotePlay(hSteamUser, hSteamPipe, pchVersion);
     } else if (strstr(pchVersion, "STEAMPARENTALSETTINGS_INTERFACE_VERSION") == pchVersion) {
         return GetISteamParentalSettings(hSteamUser, hSteamPipe, pchVersion);
+    } else if (strstr(pchVersion, "STEAMAPPTICKET_INTERFACE_VERSION") == pchVersion) {
+        return GetAppTicket(hSteamUser, hSteamPipe, pchVersion);
     } else {
         PRINT_DEBUG("No interface: %s\n", pchVersion);
         //TODO: all the interfaces
@@ -1387,6 +1392,22 @@ ISteamRemotePlay *Steam_Client::GetISteamRemotePlay( HSteamUser hSteamUser, HSte
     return (ISteamRemotePlay *)(void *)(ISteamRemotePlay *)steam_remoteplay;
 }
 
+ISteamAppTicket *Steam_Client::GetAppTicket( HSteamUser hSteamUser, HSteamPipe hSteamPipe, const char *pchVersion )
+{
+    PRINT_DEBUG("GetAppTicket %s\n", pchVersion);
+    if (!steam_pipes.count(hSteamPipe) || !hSteamUser) return NULL;
+
+    if (strcmp(pchVersion, STEAMAPPTICKET_INTERFACE_VERSION) == 0) {
+        return (ISteamAppTicket *)(void *)(ISteamAppTicket *)steam_app_ticket;
+    } else {
+        return (ISteamAppTicket *)(void *)(ISteamAppTicket *)steam_app_ticket;
+    }
+
+    // we can get here if one of the if-statements didn't return in all paths
+    PRINT_DEBUG("Missing handling for interface: %s\n", pchVersion);
+    return (ISteamAppTicket *)(void *)(ISteamAppTicket *)steam_app_ticket;
+}
+
 void Steam_Client::RegisterCallback( class CCallbackBase *pCallback, int iCallback)
 {
     int base_callback = (iCallback / 100) * 100;