What to read after Gamma Wolves?

In the blasted, radiation-scorched, wastelands of the Earth's surface, towering mecha do battle, defending the interests of one of the few remaining arcology governments, providing security for wilderness outposts, or seeking out loot and supplies as a mercenary company. With detailed rules for designing and customizing your mecha, from size and propulsion type to payload and pilot skills, and a campaign system that allows pilots to gain experience and skills as they patrol the shattered Earth, Gamma Wolves is a fast-playing game of post-apocalyptic mecha warfare.