Planet Explorers - Indie Sci-Fi RPG Sandbox

Planet Explorers is a bit like minecraft on an alien planet where you need to survive and thrive after crashing there. It used voxel based graphics for the terrain and items, and you can in fact spend hours designing your own vehicles and weapons, at least once you take care of simply staying alive. You can download the current release for free from the developers site: It’s currently on Kickstarter