Starbound is one of my most anticipated Indie games of 2013. If you ever played Terraria on Steam or like 2D side scrolling games, you might want to check this out.
It's essentially a 2D Minecraft in space/borderlands 2
It's an open sandbox universe game. The universe is randomly generated, along with the planets, their physical properties, and their names. Also, each one will be completely explorable and all of them will have randomly generated monsters and randomly generated NPC's with villages and dungeons. The game is essentially endless.
Also it will also have full coop mode and will be playable on Windows/Mac/Linux at launch. It will be releasing on Steam with a date sometime in 2013.
Preorders have already exceeded $500,000 and it's only been 2 days.http://playstarbound.com/
Housebuilding in Starbound:
Giant picture of the artstyle: