Return to the basement with this massive expansion pack for The Binding of Isaac: Four Souls!

You can have an even greater experience with the brand new solo mode and cooperative modes. With over 250 new cards, the replayability is almost unlimited. The selection of characters is bigger than ever, with the addition of corrupted characters.

They will discover the brand new room deck of the advanced game, which provides players with global modifiers in the fight for survival, cursing or blessing them with powerful effects.

However, it's not all doom and gloom, with charming enemies turning foes into friends as players continue to compete to be the first to collect four souls.

Discover killer combos, upgrade your skills, betray your friends and win!

The mega-add-on to the highly successful The Binding of Isaac: Four Souls card game. More victims! More betrayal! More collecting! More fun!

Only an add-on, not a stand-alone game.