" "After The Bomb is a role-playing game published by Palladium Books in 2001. It uses the Palladium's Megaversal system, and features mutant animals, anthropomorphic or otherwise, in a post-apocalyptic setting.
The storyline of After The Bomb introduces a post-apocalyptic setting, centered around the eastern United States, where most of the area is populated by the mutated animals that form the majority of society."
This "After the Bomb" game was created after Palladium ceased having a license for the TMNT game, which had an After the Bomb expansion/setting. This is the successor of that, but without any licensed content."
Source: Wikipedia, "After_The_Bomb", available under the CC-BY-SA License.