Set around the remnants of a broken Moon and battered International Space Station, Shattered Horizon boasts multiplayer zero-g combat with up to 32 players. The DirectX 10-powered shooter recently received a jolt of new maps in its 'Moonrise' update.

The free weekend begins at 7pm EST today and will run until 4pm EST on Sunday. Players can download the client in advance through Steam by clicking this handy link.