The Definitive Edition brings new and improved are, a more coherent ruleset, and reworked heroes, villains, and environments to this classic superhero game,

Sentinels of the Multiverse is a cooperative game in which each player controls one of a variety of unique superheroes. You use their abilities, equipment, and skills to gain strength, assist your team, and save the world!

Each game involves three aspects: three to five Heroes, fighting against one Villain, in a perilous Environment. The players play the Heroes; the Villain and Environment run automatically, represented by a deck of their own cards.

The game is also divided into rounds and turns. Each round starts with the Villain turn; after the Villain, each Hero goes (in order, clockwise around the table). The round ends with the Environment turn. There is no round limit; the game continues until either the Villain or all of the Heroes are defeated.