Users who own this game also own:

Gratuitous Space Battles
Gratuitous Space Battles
Gratuitous Space Battles: The Tribe
Gratuitous Space Battles: The Tribe
Gratuitous Space Battles: The Swarm
Gratuitous Space Battles: The Swarm
Half-Life 2
Half-Life 2
FTL: Faster Than Light
FTL: Faster Than Light