If you're a Gratuitous Space Battles nut then chances are you've got the various expansions already and are likely to do the same with this one. If you haven't tried the game yet, The Outcasts is a good starter DLC once you've exhausted the base content; the Outcasts' unique modules and ship aesthetics add a bit more unique flavor.

One the surface, Gratuitous Space Battles, from Kudos developer Positech Games, looks like your run-of-the-mill space RTS, something in the vein of the Homeworld series or Star Wars: Empire at War. But when that glance turns into a longing stare, you'll realize it's very different from both of those series and isn't really, in fact, a real time strategy game at all. Gratuitious Space Battles has a whole new system of gameplay going for it that, in many ways, feels more like a tower defense game than anything else.