This reminds me. I should probably look into how to recompile Quake 3, since for reasons unknown it's hardcoded to limit the default amount of players on a server to 8, even though there are 10 available slots in the creation screen 😠 (and I have 10 LAN machines going at LI Retro.)
So the Quake 3 engine is cooler than I expected for a 1999 game. Turned out that it's not all one executable, but a bunch of DLLs that are loaded at runtime. So I just had to recompile the UI dll, and drop it in the BASEQ3 folder, and it just works. 👍