Stardock Entertainment has announced the early access release date for Siege of Centauri.

Their upcoming tower defense game will be entering Steam Early Access on April 16th. You can check out the latest trailer above.

Siege of Centauri is a massive scale tower defense game set in the same universe as Ashes of the Singularity. You are tasked with defending Earth’s first interplanetary colony from gigantic waves of alien machines. Like Ashes of the Singularity, Siege of Centauri‘s main draw is the sheer scale of the game, with hundreds of aliens assaulting you at any given time.

Here’s a rundown of the game:

Siege of Centauri puts you in command of the defense of Earth’s first interstellar colony. Thousands of alien machines are descending on the helpless colony and only you, with your arsenal of fast-deployed orbital defense structures (FODS) can stop them.

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

Battle across the surface of an alien world through a series of story-driven campaigns or fight for survival in a doomed region to see how your skills match up against thousands of other players across the world.

Siege of Centauri will launch for $9.99, and is expected to leave Early Access sometime around Q3 2019.