Designed by Green Ronin Games, Mutants & Masterminds is a superhero role-playing game that uses a modification of the popular d20 system. Easy enough for beginners to pick up but robust enough to handle almost any situation, Mutants & Masterminds has become one of the most popular superhero role-playing games on the market.
This section uses the 2nd edition of Mutants & Masterminds, but most of the material should be adaptable to 1st edition as well. The information below uses my house setting, but should be compatible to almost any superhero universe, including Green Ronin's Freedom City setting or other superhero RPGs such as Champions and Silver Age Sentinels.
| Heroes & Villains - A rogues' gallery of NPCs to serve as allies and enemies in any campaign. |
The History of Superheroes - An alternate Earth timeline that incorporates super-powered beings in American history. |
| The Liberty League - A corporate-sponsored superhero group. |
Mongreloids - A sewer-dwelling mutant race that can serve as antagonists or sympathetic outcasts. |