Masterspace is a game about mining, creating and exploring, featuring fully destructible environments and spaceships that allow you to travel between different planets. Use explosives to mine metal ores or watch your newly constructed home get smashed to pieces by a meteorite impact. As you venture into space to discover new planets, the hull integrity of your custom built spaceship will be tested.

elegmit says

10/10 - Agree Disagree

This game has features only failed alphas usually show, but is already a functioning multiplayer game plus a scripting engine for custom games and objects.
It's totally awesome!