When I try to start up Beyond Atlantis II it doesn't even try to start at all from the GoG launcher, and if I try to launch from the files with atlantis2.exe (instead of game.exe which is also there), it comes up with the error message "Missing DDL 'SDL.dll" with no other information. Sometimes I get a white or black screen before it just disappears.

I've tried compatibility mode for 98, XP SP2 & SP3, even Windows 8 because why not. I'm on Windows 11.

Looking in the files, I can see the file SDL.dll just sitting there too. Did it get disconnected somehow? I've tried reinstalling it a couple times, verifying the files, etc. What can be done?