The guys from Bethesda Softworks have released the new DLC for Fallout 3 called Mothership Zeta.

The new Fallout 3: Mothership Zeta add-on places the hero inside an alien ship, and brings new environments, weapons and of course enemies.

The game has been posted on Xbox LIVE and Games for Windows LIVE and like every Fallout 3 DLC that has been released this one also costs 800 Microsoft Points.

Bethesda has also posted a short trailer showing some action from the new add on and you can check it out here.