Talos Principle is a very pretty game that is a great recommendation if you like puzzle games. I played it with mouse and keyboard, but I would expect it to play very well with a controller due to it's simple controls.
Games like Fallout and Elder Scroll games are great if you want to put lots of time into mods, as you can do a lot of cool things with both on PC that you couldn't do on console.
You can probably play XCOM games with just a mouse, if you do need a keyboard, it's for a minimal number of keys. It's turn based, so you don't need a great mouse surface, a wireless mouse on a couch or coffee table would work fine. XCOM games are a lot of fun.
Aside from Talos and Bethesda mods most PC games that would qualify as must haves and have good controller support are likely to already be on a console because they're essentially console ready at that point.
Specially with an Oculus: https://www.youtube.com/watch?v=1C1ot8bVNKc
750ti won't cut it I don't think, framerate needs to be solid 60 for good vr. I have a 770 Gtx i use with my dk2 and even that is cutting it close for some games
[–] whalesizedmousepoop ago
Civ 5