Hi, maybe I'm missing something, but I can't find an option to launch the Splat Pack from Galaxy...

In the More->Other menu, I only see configuration utilities.

Maybe the Galaxy support for that game is still incomplete ?

EDIT:

For now I added the option by myself to the Galaxy "other" menu.

Just add this in the "goggame-1207659047.info" file, after the main game section (and restart Galaxy):

{
"name" : "Splat Pack",
"type" : "FileTask",
"path" : "DOSBOX\\dosbox.exe",
"workingDir" : "DOSBOX",
"arguments" : "-conf \"..\\dosboxCARSPLAT.conf\" -conf \"..\\dosboxCARSPLAT_single.conf\" -noconsole -c \"exit\""
},

You have to launch the game first, then you are greeted with a selection menu (within DOSBox) offering you to run Splat Pack in 3DFX mode or normal mode (along with the base Carmageddon game).

If I run the game using PLAY, I have only the choice between "Carmageddon 3DFX" and "Carmageddon", I don't see choices for Splat Pack... that's why I had to add another option to Galaxy

I see, that's really strange! Here is what I have when I hit PLAY (attached file). I suppose your game is up to date?

The info file here has this for the PLAY option:

{
"isPrimary" : true,
"type" : "FileTask",
"path" : "DOSBOX\\dosbox.exe",
"workingDir" : "DOSBOX",
"arguments" : "-conf \"..\\dosboxCARMA.conf\" -conf \"..\\dosboxCARMA_single.conf\" -noconsole -c \"exit\""
},


and this is the content of the referenced dosboxCARMA_single.conf file:

[IPX]
Enable=0
Connection=0
ipx=false

[autoexec]
@echo off
cls
mount c ".." -freesize 100000
c:
cls

@ECHO 
@ECHO -------------------------------
@ECHO Carmageddon Max Pack
@ECHO -------------------------------
@ECHO *SINGLE PLAYER*
@ECHO on
@ECHO off
@ECHO 1) Carmageddon 3DFX
@ECHO 2) Carmageddon Splat Pack 3DFX
@ECHO 3) Carmageddon
@ECHO 4) Carmageddon Splat Pack
@ECHO on
@ECHO off
@ECHO -------------------------------
@ECHO 5) exit program
@ECHO -------------------------------
@ECHO 
@ECHO on
@choice /c12345 /s Which version do you want to play? [1-5]: /n

if errorlevel 5 goto exit
if errorlevel 4 goto splat
if errorlevel 3 goto car
if errorlevel 2 goto splat3dfx
if errorlevel 1 goto car3dfx

:car3dfx
cls
imgmount d "..\CARMA\GAME.DAT" -t cdrom -fs iso
cd CARMA
CONFIG -set "glide=true"
CONFIG -set "grport=600"
CONFIG -set "lfb=full"
cls
3dfx.exe
exit

:splat3dfx
cls
imgmount d "..\CARSPLAT\SPLAT.DAT" -t cdrom -fs iso
cd CARSPLAT
CONFIG -set "glide=true"
CONFIG -set "grport=600"
CONFIG -set "lfb=full"
cls
carmav.exe
exit

:car
cls
imgmount d "..\CARMA\GAME.DAT" -t cdrom -fs iso
cd CARMA
cls
voodo2c.exe -novoodoo
exit

:splat
cls
imgmount d "..\CARSPLAT\SPLAT.DAT" -t cdrom -fs iso
cd CARSPLAT
cls
voodo2c.exe -novoodoo
exit

:exit
exit

Well, this is interesting...

I tried again to verify my installation, but it just removed the custom splat pack entry that I added and everything stayed the same...

Also downloaded again the offline installer and extracted the contents, and even there, there are 2 separate *single.conf files, one for Carmageddon and one for the Splat Pack...

I wonder where did you got that DosBox configuration.

On my end, this is the default configuration when installed via GOG Galaxy. I have no idea how base installs from GOG can differ like this. Would be nice to have GOG staff chime in on this!

how did you manage to extract the files from the offline installer? i have tried to insyall it at least 4 times and every time it fails to place any files on my pc.

https://constexpr.org/innoextract/