Conclusion: Performance problems and a squandered set of new characters bog down what could have been a really interesting peek beyond the alternate reality take on post-nuke Earth (and beyond). Unless you're dying for a new setting, it's probably best to skip this.
It may be a change of scenery, but the final Fallout 3 downloadable content pack ends the saga on a low note.
6 August 2009
Summary: A mysterious signal leads you to the remains of a crashed spaceship half buried in the rubble. You approach cautiously, but before you can inspect further, you rise into the air, awash with blue light. Soon, you're peering into the faces of several probing aliens. Thus begins Mothership Zeta.
Pros: Interesting new environment to explore, Blowing up aliens' heads looks great, Some cool new guns to play with