0x1 - The Pluto Campaign

The Roughnecks defend a base on the barren, icy planes of Pluto.

0x3 - The Tophet Campaign

The Troopers land on a desert planet, where a group of humanoid Skinnies proves to be strangely hospitable. Before long, a group of massive crawlers moves in to attack.

0x4 - The Tesca Campaign

Johnny Rico and his crew are angry that they've been teamed with the suspicious T'Phai to fight an infestation of alien bugs on Zegema Beach. When the bugs show the soldiers what they are capable of, resulting in a close call for Rico, the men realize that they are going to have to work together if they want to survive.

0x5 - The Zephyr Campaign

The Roughnecks find themselves on a large asteroid after their craft, the Zephyr, crashes. Troopers Carmen, Rico, Flores, T'Phai, and company then set out to find a powerful toxin that could be their savior in their battle with the giant bugs that threaten to take over the universe. However, when an investigation leads them to the discovery that the asteroid is infested with the hideous creatures, the Roughnecks' chances for survival begin to look smaller and smaller.

0x6 - The Klendathu Campaign

Rico and his fellow squad members face an unforeseen horror when Lieutenant Zander catches a bug virus which transforms him into a powerful half human/half bug enemy.

0x7 - Trackers

A bug queen is heading to earth, and the roughnecks must destroy her. They believe that they have accomplished the mission, but Carl discovers something much more sinister.

0x8 - Homefront Campaign

The bugs have reached Earth, and Rico, Flores, Carl, and their squadron are brought home to do some exterminating.

0x9 - Court Martial of Lt. Razak

0x10 - Marooned

0x11 - Pluto & Beyond

0x12 - Propaganda Machine