I've only played Quake I (and a modified version of it at that which had accessibility features). I did purchase quake II and III from Steam a few years ago, but it's much harder to play them because they have no accessibility to speak of (and I'm not entirely certain where to begin to try to replicate what was done with my version of Quake I). Quake in general has always been an insanely fun game for me, and I started playing it in like 2010. I still love playing it even now because it's got something to it that most other games I have just lack. Don't ask me to explain what it is because I can't really put it into words but...

qpong, generations mod, catch the chicken, red rover, weapons of mass destruction, 4 way ctf, freeze tag....so many good mods