I would try to compile - QuakeSpasm-Spiked, modified QuakeSpasm with framerate-independent physics and other improvements: https://triptohell.info/moodles/qss/

I would try to compile - QuakeSpasm-Spiked, modified QuakeSpasm with framerate-independent physics and other improvements: https://triptohell.info/moodles/qss/ https://triptohell.info/moodles/qss/ - FTE QW, will let you play singleplayer, multiplayer, and I think even Quake II (and III?): https://fte.triptohell.info/ https://fte.triptohell.info/ - QuakeSpasm (sibling comment has a link) If all else fails, I know some QW guys are playing on M1 using ezquake. That's really a multiplayer engine and I wouldn't recommend it for SP but it could do if you're desperate.