Hi, thanks for the replies and all the messages,
I'm still open for artist, game designers, writers,..
Arnero, I only run linux on servers, I don't have any linux hardware for gaming, hence I can't really investigate your issue. Have you considered to go the official way and report it via: https://github.com/ioquake/ioq3/issues ? I'm sure the devs might know best what possible issues might cause the crash. Yeah, Doom controls are a bit dated, but it's still amazing to be able to play one of the oldest shooters. I guess my goal is more Quake than Doom, but I'll mix and match features as the team will decide.
Mamounetaleb, thanks for your help offer. When I'm down to add music to the game, I'll definitely consider you. Do you have a portfolio you could link?
Thanks again everyone!