is the ultimate and final expansion for the genre-defining roguelike, developed by Edmund McMillen and Nicalis . It is far more than a simple DLC, effectively doubling the game's content by integrating and expanding upon the popular fan-made mod, Antibirth . Key Features & Content
: A full alternate path with brand-new chapters, 25+ new bosses, and multiple new endings that conclude Isaac's story.
: Features a significant overhaul to co-op, allowing up to four players to play as full characters rather than just "babies".
: Adds over 130 new items, bringing the total to more than 700.
