Planet Explorers is an open world voxel based sandbox adventure RPG game set on a distant planet. The game uses a new OpenCL calculated voxel system to allow players to change the terrain in any way, create new objects such as weapons, vehicles, objects, and do it anywhere.
I attempted to play this a few months ago, but it was in SUPER early access and was a huge disappointment all around. I might try again once the game is, y'know. done.
Apparently this game doesn't support AMD graphics cards. Would have been nice for them to mention that anywhere on their website. Only found out after digging around in their support forums, through several 'game crashes at start' posts.