Chronos is one of the biggest, most complex games published so far for virtual reality. It's a third-person fantasy RPG that borrows a lot of gameplay elements from Dark Souls, but as its name suggests, there's also an interesting time-based component: each one of your deaths "ages" you by a year, changing the cost of acquiring different skills as you get older. And its world's interesting blend of high fantasy and alternate history — including some weird nods to VR inside the game — make it more than just a Souls knockoff.