Wow, I already liked Defense Grid (finished DG 1 and 2 on regular non VR) so didnt know if I would regret buying $30 VR edition but wow its amazingly impressive. I didnt realize until I played it that the tower view doesnt just look cool but you can look around and interact with the entire board from that board too (I thought you would have to jump back out to high level view, then zoom in again to a new place). VR works amazingly well with strategy games it looks like, would love to play civ and xcom type games like this.
Chronos too is absolutely stunning. Looks amazing, great gameplay, zero nausea due to the camera system - by far the best action type game IMO. Edge of Nowhere gives me slight nausea because of the character movements, only fixed camera games like Chronos (auto) and Farlands (teleport) work completely nausea free. Having played Chronos, I think its a massive mistake for FFVII to be VR in first person, the older style fixed camera view would work amazingly well.
Farlands is stunning too. The gameplay mechanics are boring since its a simple casual game designed as a showcase (comes free with the Rift like Lucky's Tale) but wow it looks absolutely amazing visually, I would so love to play a RPG in VR with similar movement and graphics quality. It reminded me of Star Ocean on the 360 the ocean seetting. Due to a fixed camera, it could be a great way to get the older turn based style battle systems like loads of older JRPG's to reduce nausea versus an action game.
I need to try Dragon Age Inquisition with Vorpx. I think the graphics would look great, since the sense of scale is just so much better its incredible (eg in Chronos).
Project Cars looks incredible in VR, especially the exterior view. Need to get euro truck sim 2 since that supports rift too.
Solus looks great but they need teleport on rift - just make it an option to teleport where the crosshair is please. nausea city with the move by controller.
House of the Undying sun also works incredibly well in 3D - great game and great VR showcase too.