Kotaku writes: "As the last of the planned Fallout 3 downloadable content, Mothership Zeta isn't quite the ending I had hoped for. As grand finale's go, it's got grand in spades, but is sorely lacking in the finale department. Don't get me wrong here...it's an excellent experience, but it just doesn't deliver the sense of closure I'm looking for in Fallout 3. At the end of your adventure you're back on the surface, a bit older, a bit wiser, a bit better armed, and wanting more. Bethesda has said that taking the level cap past the 30 established in Broken Steel would unbalance the game. Fair enough. If we can go no further, give us a grand finale.
Mother Zeta might not be an ending, but it's a roller coaster of a space adventure that's well worth the price of admission, especially if you hate power generators".