The weakest of the Fallout 3 DLC selection. Despite Fallout 3 being Bethesda's weird, trailblazing journey into the 3D universe, Mothership Zeta struggles to find its place in the Fallout world; it has very little to do with Fallout in the first place, and has no lasting impact after the fact. Thankfully, it is a relatively quick experience, but you find yourself trapped in repetitive, corridor laden environment until you complete the DLC storyline. If you're playing the game outside of the Game Of The Year edition, you can afford to skip this.