diff --git a/stub_steam/steam_api.cpp b/stub_steam/steam_api.cpp
new file mode 100644
index 0000000000..d658d7415b
--- /dev/null
+++ b/stub_steam/steam_api.cpp
@@ -0,0 +1,185 @@
+#define _CRT_SECURE_NO_WARNINGS
+#define STEAM_API_EXPORTS
+
+#if defined __GNUC__
+ #define S_API extern "C" __attribute__ ((visibility("default"))) 
+#elif defined _MSC_VER
+#define S_API extern "C" __declspec(dllexport)
+#endif
+#define NULL 0
+
+S_API void *g_pSteamClientGameServer;
+void *g_pSteamClientGameServer = NULL;
+
+//steam_api.h
+S_API bool SteamAPI_Init() {
+	return true;
+}
+
+S_API bool SteamAPI_InitSafe() {
+	return true;
+}
+
+S_API void SteamAPI_Shutdown() {
+
+}
+
+S_API bool SteamAPI_RestartAppIfNecessary() {
+	return false;
+}
+
+S_API void SteamAPI_ReleaseCurrentThreadMemory() {
+
+}
+
+S_API void SteamAPI_WriteMiniDump() {
+
+}
+
+S_API void SteamAPI_SetMiniDumpComment() {
+
+}
+
+S_API void SteamAPI_RunCallbacks() {
+}
+
+S_API void SteamAPI_RegisterCallback() {
+
+}
+
+S_API void SteamAPI_UnregisterCallback() {
+
+}
+
+S_API void SteamAPI_RegisterCallResult() {
+
+}
+
+S_API void SteamAPI_UnregisterCallResult() {
+
+}
+
+S_API bool SteamAPI_IsSteamRunning() {
+	return false;
+}
+
+S_API void Steam_RunCallbacks() {
+
+}
+
+S_API void Steam_RegisterInterfaceFuncs() {
+}
+
+S_API int Steam_GetHSteamUserCurrent() {
+	return 0;
+}
+
+S_API const char *SteamAPI_GetSteamInstallPath() {
+	return NULL;
+}
+
+S_API int SteamAPI_GetHSteamPipe() {
+	return 0;
+}
+
+S_API void SteamAPI_SetTryCatchCallbacks() {
+
+}
+
+S_API void SteamAPI_SetBreakpadAppID() {
+
+}
+
+S_API void SteamAPI_UseBreakpadCrashHandler() {
+
+}
+
+S_API int GetHSteamPipe() {
+	return 0;
+}
+
+S_API int GetHSteamUser() {
+	return 0;
+}
+
+S_API int SteamAPI_GetHSteamUser() {
+	return 0;
+}
+
+S_API void *SteamInternal_ContextInit() {
+	return NULL;
+}
+
+S_API void *SteamInternal_CreateInterface() {
+	return NULL;
+}
+
+S_API void *SteamApps() {
+	return NULL;
+}
+
+S_API void *SteamClient() {
+	return NULL;
+}
+
+S_API void *SteamFriends() {
+	return NULL;
+}
+
+S_API void *SteamHTTP() {
+	return NULL;
+}
+
+S_API void *SteamMatchmaking() {
+	return NULL;
+}
+
+S_API void *SteamMatchmakingServers() {
+	return NULL;
+}
+
+S_API void *SteamNetworking() {
+	return NULL;
+}
+
+S_API void *SteamRemoteStorage() {
+	return NULL;
+}
+
+S_API void *SteamScreenshots() {
+	return NULL;
+}
+
+S_API void *SteamUser() {
+	return NULL;
+}
+
+S_API void *SteamUserStats() {
+	return NULL;
+}
+
+S_API void *SteamUtils() {
+	return NULL;
+}
+
+S_API int SteamGameServer_GetHSteamPipe() {
+	return 0;
+}
+
+S_API int SteamGameServer_GetHSteamUser() {
+	return 0;
+}
+
+S_API int SteamGameServer_GetIPCCallCount() {
+	return 0;
+}
+
+S_API int SteamGameServer_InitSafe() {
+	return 0;
+}
+
+S_API void SteamGameServer_RunCallbacks() {
+}
+
+S_API void SteamGameServer_Shutdown() {
+}
diff --git a/stub_steam/wscript b/stub_steam/wscript
new file mode 100755
index 0000000000..9da87661fd
--- /dev/null
+++ b/stub_steam/wscript
@@ -0,0 +1,44 @@
+#! /usr/bin/env python
+# encoding: utf-8
+
+from waflib import Utils
+import os
+
+top = '.'
+PROJECT_NAME = 'steam_api'
+
+def options(opt):
+	# stub
+	return
+
+def configure(conf):
+	return
+
+def build(bld):
+	source = [
+		'steam_api.cpp'
+	]
+
+	includes = [
+		'.',
+		'../public',
+		'../public/tier0',
+	] + bld.env.INCLUDES_SDL2
+
+	defines = []
+
+	libs = []
+
+	bld.shlib(
+		source   = source,
+		target   = PROJECT_NAME,
+		name     = PROJECT_NAME,
+		features = 'c cxx',
+		includes = includes,
+		defines  = defines,
+		install_path = bld.env.LIBDIR,
+		use      = libs,
+		subsystem = bld.env.MSVC_SUBSYSTEM,
+		idx      = bld.get_taskgen_count()
+	)
+
diff --git a/thirdparty b/thirdparty
index aac07c7205..c5b901ecef 160000
--- a/thirdparty
+++ b/thirdparty
@@ -1 +1 @@
-Subproject commit aac07c72058aea6267ea60b70a25602b41469d28
+Subproject commit c5b901ecef515ea068fa8b8a19ca5cd5353905cb