Siege of Centauri Key

Siege of Centauri puts you in charge of defending the first interstellar colony on Earth. Thousands of extraterrestrial machines descend on the helpless colony and only you, with your arsenal of fast-moving orbital defense structures.

The enemy comes in all shapes and sizes, challenging you to counter him with the right defense in the right place. Siege of Centauri combines the best elements of classic tower defense games with the strategic depth that Stardock offered in previous titles, including Sins of a Solar Empire: Rebellion and Ashes of the Singularity.

Fight on the surface of an alien world through a series of story-based campaigns or fight for survival in a doomed region to see how your skills match those of thousands of other players around the world.