It’s one extended escape, although there are a few areas (some optional) that present pieces of the aliens’ insidious plans or just showcase what they’ve collected over the years. Most of the story arc consists of running through corridors, blasting aliens in the face, and picking up whatever junk they left behind. There isn’t a strong plot here, just an escape story with complications and a few hints concerning the activities of the aliens, none of which are ever confirmed.
Play begins with escaping the initial containment cell and continues with a larger-scale escape plan: one that will land you back on solid ground. Before he can even move, he’s on an alien ship and imprisoned with another captive.
Mothership Zeta begins with an extraterrestrial radio signal that leads the Wasteland Warrior straight into a tractor beam. The final Fallout 3 DLC is fun and contains some fantastic ideas, but suffers from repetitive gameplay and scenery, a weak plot, and some minor glitches. I appreciated their departure into sci-fi, though, because science fiction material is rarely well-executed in video games. Like Operation: Anchorage, Mothership Zeta moves away from the post-apocalyptic feel, but it still manages to retain the Fallout atmosphere. As the (allegedly) final Fallout 3 DLC, Mothership Zeta is an appropriately lighthearted sci-fi adventure that solves one of the Wasteland’s most enduring mysteries namely, the origin of that fallen UFO and its deceased, green pilot. Bethesda has shown extreme flexibility in their creations they have created post apocalyptia, dystopia, horror, and now sci-fi, all using the same game engine and all contained within the same world.