Tags: Activity, Game.
Mutants & Masterminds (abbreviated M&M or MnM) is a top-selling multiple ENnie award and Pen & Paper Fan Award winning superhero role-playing game written by Steve Kenson and published by Green Ronin Publishing based on a variant of the d20 System by Wizards of the Coast. The game system is designed to allow players to create virtually any type of hero or villain desired.