diff --git a/src/common/engine/startupinfo.h b/src/common/engine/startupinfo.h
index 33a510334..c0dd608c1 100644
--- a/src/common/engine/startupinfo.h
+++ b/src/common/engine/startupinfo.h
@@ -12,6 +12,7 @@ struct FStartupInfo
 	FString con;
 	FString def;
 	FString DiscordAppId = nullptr;
+	FString SteamAppId = nullptr;
 	int Type;
 	int LoadLights = -1;
 	int LoadBrightmaps = -1;
diff --git a/src/d_iwad.cpp b/src/d_iwad.cpp
index cba5e922c..2d2e90b5f 100644
--- a/src/d_iwad.cpp
+++ b/src/d_iwad.cpp
@@ -245,6 +245,12 @@ void FIWadManager::ParseIWadInfo(const char *fn, const char *data, int datasize,
 					sc.MustGetString();
 					iwad->DiscordAppId = sc.String;
 				}
+				else if (sc.Compare("SteamAppId"))
+				{
+					sc.MustGetStringName("=");
+					sc.MustGetString();
+					iwad->SteamAppId = sc.String;
+				}
 				else
 				{
 					sc.ScriptError("Unknown keyword '%s'", sc.String);
@@ -838,6 +844,7 @@ const FIWADInfo *FIWadManager::FindIWAD(TArray<FString> &wadfiles, const char *i
 	if (GameStartupInfo.Type == 0) GameStartupInfo.Type = iwad_info->StartupType;
 	if (GameStartupInfo.Song.IsEmpty()) GameStartupInfo.Song = iwad_info->Song;
 	if (GameStartupInfo.DiscordAppId.IsEmpty()) GameStartupInfo.DiscordAppId = iwad_info->DiscordAppId;
+	if (GameStartupInfo.SteamAppId.IsEmpty()) GameStartupInfo.SteamAppId = iwad_info->SteamAppId;
 	I_SetIWADInfo();
 	return iwad_info;
 }
diff --git a/src/d_main.cpp b/src/d_main.cpp
index 61299d8c8..2b111673a 100644
--- a/src/d_main.cpp
+++ b/src/d_main.cpp
@@ -154,7 +154,7 @@ void M_SaveDefaultsFinal();
 void R_Shutdown();
 void I_ShutdownInput();
 void SetConsoleNotifyBuffer();
-void I_UpdateDiscordPresence(bool SendPresence, const char* curstatus, const char* appid);
+void I_UpdateDiscordPresence(bool SendPresence, const char* curstatus, const char* appid, const char* steamappid);
 
 const FIWADInfo *D_FindIWAD(TArray<FString> &wadfiles, const char *iwad, const char *basewad);
 
@@ -1881,6 +1881,11 @@ static FString ParseGameInfo(TArray<FString> &pwads, const char *fn, const char
 			sc.MustGetString();
 			GameStartupInfo.DiscordAppId = !!sc.String;
 		}
+		else if (!nextKey.CompareNoCase("STEAMAPPID"))
+		{
+			sc.MustGetString();
+			GameStartupInfo.SteamAppId = !!sc.String;
+		}
 		else
 		{
 			// Silently ignore unknown properties
@@ -3703,6 +3708,7 @@ void D_Cleanup()
 	GameStartupInfo.BkColor = GameStartupInfo.FgColor = GameStartupInfo.Type = 0;
 	GameStartupInfo.LoadWidescreen = GameStartupInfo.LoadLights = GameStartupInfo.LoadBrightmaps = -1;
 	GameStartupInfo.DiscordAppId = "";
+	GameStartupInfo.SteamAppId = "";
 	
 	GC::FullGC();					// clean up before taking down the object list.
 	
@@ -3792,7 +3798,7 @@ void I_UpdateWindowTitle()
 		titlestr = GameStartupInfo.Name;
 		break;
 	default:
-		I_UpdateDiscordPresence(false, NULL, GameStartupInfo.DiscordAppId.GetChars());
+		I_UpdateDiscordPresence(false, NULL, GameStartupInfo.DiscordAppId.GetChars(), GameStartupInfo.SteamAppId.GetChars());
 		I_SetWindowTitle(NULL);
 		return;
 	}
@@ -3822,6 +3828,6 @@ void I_UpdateWindowTitle()
 		}
 	}
 	*dstp = 0;
-	I_UpdateDiscordPresence(true, copy.Data(), GameStartupInfo.DiscordAppId.GetChars());
+	I_UpdateDiscordPresence(true, copy.Data(), GameStartupInfo.DiscordAppId.GetChars(), GameStartupInfo.SteamAppId.GetChars());
 	I_SetWindowTitle(copy.Data());
 }
diff --git a/src/d_main.h b/src/d_main.h
index 57b146a81..5f0ce7582 100644
--- a/src/d_main.h
+++ b/src/d_main.h
@@ -94,6 +94,7 @@ struct FIWADInfo
 	int LoadBrightmaps = -1;
 	int LoadLights = -1;
 	FString DiscordAppId = nullptr;
+	FString SteamAppId = nullptr;
 };
 
 struct FFoundWadInfo
diff --git a/src/richpresence.cpp b/src/richpresence.cpp
index 2e1a5be9b..bb53e9d5b 100644
--- a/src/richpresence.cpp
+++ b/src/richpresence.cpp
@@ -83,7 +83,7 @@ static void handleDiscordJoinRequest(const DiscordUser* request)
 		request->userId);
 }
 
-void I_UpdateDiscordPresence(bool SendPresence, const char* curstatus, const char* appid)
+void I_UpdateDiscordPresence(bool SendPresence, const char* curstatus, const char* appid, const char* steamappid)
 {
 	const char* curappid = DEFAULT_DISCORD_APP_ID;
 
@@ -101,7 +101,7 @@ void I_UpdateDiscordPresence(bool SendPresence, const char* curstatus, const cha
 		handlers.joinGame = handleDiscordJoin;
 		handlers.spectateGame = handleDiscordSpectate;
 		handlers.joinRequest = handleDiscordJoinRequest;
-		Discord_Initialize(curappid, &handlers, 1, NULL);
+		Discord_Initialize(curappid, &handlers, 1, steamappid);
 	}
 
 	if (SendPresence)