>>368567047
Not much that is high quality outside of some ports. Alyx is the best overall option as the base game is good and has a lot of modded campaigns that can keep you busy. Check out Return to Rapture and Gunman Contracts. Boneworks and H3VR are OK but are flat tech demos. Pirate them before buying. The rest of your options are just ports of flat games. Resident Evil 4 VR is as good and probably better than Alyx in several regards, but it can't be played on an Index. Arcane Dimensions in Quakespasm VR is one of the best FPS experiences you can get if you are willing to play an older game.