>>642202for both of them you need a sourceport to play well, as both of them use dosbox when launching through steam
you'll still need actual copies of those games tho, or at least their files
for doom I recommend GZDoom which you can find here
https://zdoom.org/downloadsand for quake I recommend Quakespasm which you can find here
http://quakespasm.sourceforge.net/download.htmif you want a more indepth guide check out the /vr/ FPS guides here
https://imgur.com/a/wWS8zXzor go to the FPS general on /vr/
