From the Publisher's Website:
Contrary to popular belief, radiation doesn’t kill you it only makes you stronger. Now let's go beat up that giant sentient lawnmower and take his swag.
Characters have six attributes: Strength, Toughness, Quickness, Mental Strength, Mental Toughness, Mental Quickness. These are generated randomly using 2d10, and will almost certainly be modified by the random mutations that each character has.
Task resolution is performed by rolled a ten-sided die for every 5 points in an attribute, and comparing against an opponent's roll (or 3d10 if no opponent). The mechanism involves a novel method for deriving a number of successes which determine the effectiveness of the action.