Infinite Dust is an awesome alien survival game. You’re stranded on a planet and you need to build, explore, craft, loot, and establish a base. Explore huge procedurally-generated voxel planets and even travel through interstellar space.
Winterfall is an action RPG that combines exploration with real-time combat and also a city-builder. Explore the ruined kingdom and discover the history. Build your own Sanctuary and defend it to protect your people from the Winterfall.