diff --git a/src/g_game.cpp b/src/g_game.cpp
index c442ee875..8101ca23d 100644
--- a/src/g_game.cpp
+++ b/src/g_game.cpp
@@ -2516,7 +2516,7 @@ bool G_ProcessIFFDemo (FString &mapname)
 	id = ReadLong (&demo_p);
 	if (id != ZDEM_ID)
 	{
-		Printf ("Not a ZDoom demo file!\n");
+		Printf ("Not a " GAMENAME " demo file!\n");
 		return true;
 	}
 
@@ -2541,12 +2541,12 @@ bool G_ProcessIFFDemo (FString &mapname)
 			demover = ReadWord (&demo_p);	// ZDoom version demo was created with
 			if (demover < MINDEMOVERSION)
 			{
-				Printf ("Demo requires an older version of ZDoom!\n");
+				Printf ("Demo requires an older version of " GAMENAME "!\n");
 				//return true;
 			}
 			if (ReadWord (&demo_p) > DEMOGAMEVERSION)	// Minimum ZDoom version
 			{
-				Printf ("Demo requires a newer version of ZDoom!\n");
+				Printf ("Demo requires a newer version of " GAMENAME "!\n");
 				return true;
 			}
 			if (demover >= 0x21a)
@@ -2673,7 +2673,7 @@ void G_DoPlayDemo (void)
 
 	if (ReadLong (&demo_p) != FORM_ID)
 	{
-		const char *eek = "Cannot play non-ZDoom demos.\n";
+		const char *eek = "Cannot play non-" GAMENAME " demos.\n";
 
 		C_ForgetCVars();
 		M_Free(demobuffer);
diff --git a/src/g_shared/shared_sbar.cpp b/src/g_shared/shared_sbar.cpp
index d8e113824..c0442fc74 100644
--- a/src/g_shared/shared_sbar.cpp
+++ b/src/g_shared/shared_sbar.cpp
@@ -1502,7 +1502,7 @@ void DBaseStatusBar::DrawTopStuff (EHudState state)
 	{
 		screen->DrawText (SmallFont, CR_TAN, 0, ST_Y - 40 * CleanYfac,
 			"Demo was recorded with a different version\n"
-			"of ZDoom. Expect it to go out of sync.",
+			"of " GAMENAME ". Expect it to go out of sync.",
 			DTA_CleanNoMove, true, TAG_DONE);
 	}
 
diff --git a/src/posix/i_system.cpp b/src/posix/i_system.cpp
index 0a1b2f69a..fd6bb4c0c 100644
--- a/src/posix/i_system.cpp
+++ b/src/posix/i_system.cpp
@@ -331,7 +331,7 @@ int I_PickIWad_Gtk (WadStuff *wads, int numwads, bool showwin, int defaultiwad)
 	gtk_container_add (GTK_CONTAINER(window), vbox);
 
 	// Create the top label.
-	widget = gtk_label_new ("ZDoom found more than one IWAD\nSelect from the list below to determine which one to use:");
+	widget = gtk_label_new (GAMENAME " found more than one IWAD\nSelect from the list below to determine which one to use:");
 	gtk_box_pack_start (GTK_BOX(vbox), widget, false, false, 0);
 	gtk_misc_set_alignment (GTK_MISC(widget), 0, 0);
 
@@ -450,7 +450,7 @@ int I_PickIWad (WadStuff *wads, int numwads, bool showwin, int defaultiwad)
 	{
 		FString cmd("kdialog --title \"" GAMESIG " ");
 		cmd << GetVersionString() << ": Select an IWAD to use\""
-		            " --menu \"ZDoom found more than one IWAD\n"
+		            " --menu \"" GAMENAME " found more than one IWAD\n"
 		            "Select from the list below to determine which one to use:\"";
 
 		for(i = 0; i < numwads; ++i)
diff --git a/src/sound/music_midi_timidity.cpp b/src/sound/music_midi_timidity.cpp
index 38ba8557e..3ce8d89d3 100644
--- a/src/sound/music_midi_timidity.cpp
+++ b/src/sound/music_midi_timidity.cpp
@@ -22,7 +22,7 @@ void ChildSigHandler (int signum)
 #ifdef _WIN32
 BOOL SafeTerminateProcess(HANDLE hProcess, UINT uExitCode);
 
-static char TimidityTitle[] = "TiMidity (ZDoom Launched)";
+static char TimidityTitle[] = "TiMidity (" GAMENAME " Launched)";
 const char TimidityPPMIDIDevice::EventName[] = "TiMidity Killer";
 
 CVAR (String, timidity_exe, "timidity.exe", CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
@@ -347,7 +347,7 @@ bool TimidityPPMIDIDevice::ValidateTimidity()
 	}
 	if (!good)
 	{
-		Printf(PRINT_BOLD, "ZDoom requires a special version of TiMidity++\n");
+		Printf(PRINT_BOLD, GAMENAME " requires a special version of TiMidity++\n");
 	}
 
 	UnmapViewOfFile((LPVOID)exeBase);
diff --git a/src/win32/i_cd.cpp b/src/win32/i_cd.cpp
index b4982b865..32477f2dd 100644
--- a/src/win32/i_cd.cpp
+++ b/src/win32/i_cd.cpp
@@ -175,7 +175,7 @@ bool FCDThread::Init ()
 	CD_WindowClass.style = CS_NOCLOSE;
 	CD_WindowClass.lpfnWndProc = CD_WndProc;
 	CD_WindowClass.hInstance = g_hInst;
-	CD_WindowClass.lpszClassName = "ZDoom CD Player";
+	CD_WindowClass.lpszClassName = GAMENAME " CD Player";
 	CD_WindowAtom = RegisterClass (&CD_WindowClass);
 
 	if (CD_WindowAtom == 0)
@@ -183,7 +183,7 @@ bool FCDThread::Init ()
 
 	CD_Window = CreateWindow (
 		(LPCTSTR)(INT_PTR)(int)CD_WindowAtom,
-		"ZDoom CD Player",
+		GAMENAME " CD Player",
 		0,
 		0, 0, 10, 10,
 		NULL,
diff --git a/src/win32/i_crash.cpp b/src/win32/i_crash.cpp
index 453549ab7..0735e3553 100644
--- a/src/win32/i_crash.cpp
+++ b/src/win32/i_crash.cpp
@@ -125,10 +125,7 @@ RtlVirtualUnwind (
 #define UPLOAD_BOUNDARY	"Von-DnrNbJl0 P9d_BD;cEEsQVWpYMq0pbZ6NUmYHus;yIbFbkgB?.N=YC5O=BGZm+Rab5"
 #define DBGHELP_URI		"/msredist/dbghelp.dl_"
 
-// If you are working on your own modified version of ZDoom, change
-// the last part of the UPLOAD_AGENT (between parentheses) to your
-// own program's name. e.g. (Skulltag) or (ZDaemon) or (ZDoomFu)
-#define UPLOAD_AGENT	"ZDoom/" VERSIONSTR " (" GAMESIG ")"
+#define UPLOAD_AGENT	GAMENAME "/" VERSIONSTR " (" GAMESIG ")"
 
 // Time, in milliseconds, to wait for a send() or recv() to complete.
 #define TIMEOUT			60000
diff --git a/src/win32/i_main.cpp b/src/win32/i_main.cpp
index c63e7bc1c..ea167428f 100644
--- a/src/win32/i_main.cpp
+++ b/src/win32/i_main.cpp
@@ -143,7 +143,7 @@ LONG			ErrorIconChar;
 
 // PRIVATE DATA DEFINITIONS ------------------------------------------------
 
-static const char WinClassName[] = "ZDoomMainWindow";
+static const char WinClassName[] = GAMENAME "MainWindow";
 static HMODULE hwtsapi32;		// handle to wtsapi32.dll
 static void (*TermFuncs[MAX_TERMS])(void);
 static int NumTerms;
@@ -1224,7 +1224,7 @@ int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE nothing, LPSTR cmdline, int n
 		// This should only happen on basic Windows 95 installations, but since we
 		// don't support Windows 95, we have no obligation to provide assistance in
 		// getting it installed.
-		MessageBoxA(NULL, "Could not load riched20.dll", "ZDoom Error", MB_OK | MB_ICONSTOP);
+		MessageBoxA(NULL, "Could not load riched20.dll", GAMENAME " Error", MB_OK | MB_ICONSTOP);
 		exit(0);
 	}
 
diff --git a/src/win32/win32video.cpp b/src/win32/win32video.cpp
index b6d6d670e..3420ec0da 100644
--- a/src/win32/win32video.cpp
+++ b/src/win32/win32video.cpp
@@ -301,7 +301,7 @@ void Win32Video::InitDDraw ()
 		DDraw->Release ();
 		DDraw = NULL;
 		I_FatalError ("DirectDraw returned no display modes.\n\n"
-					"If you started ZDoom from a fullscreen DOS box, run it from "
+					"If you started " GAMENAME " from a fullscreen DOS box, run it from "
 					"a DOS window instead. If that does not work, you may need to reboot.");
 	}
 	if (Args->CheckParm ("-2"))