Return to Mom's basement in this vast expansion to The Binding of Isaac: Four Souls! Expand your experience with a brand new Solitaire mode or Co-Op Mode. With more than 250 new cards, replay is almost endless.

• MORE TO EXPLORE: A huge expansion of the original Binding of Isaac: Four Souls game. Fight new monsters, collect new items, play as new characters.
• NEW CHARACTERS: The roster of characters is now greater than ever with the addition of Tainted characters.
• RETURN TO THE BASEMENT: Explore the brand-new optional Room Deck for advanced play, which offers global modifiers for players, either cursing or blessing them with powerful effects as they fight to survive.
• SOLO MODE: The expansion also adds new Solo and Multiplayer game modes and a brand new ROOM deck! The Room deck shakes up game play by adding global effects to all players that modify existing mechanics and even add new ones.