Bigger and greater secrets than ever before.A new secret final chapter for Isaac to endure.
2 new characters with unique playstyles.This time, Isaac will face our free and fan-made The Binding of Isaac: Rebirth expansion, Antibirth. In the two years since then, fate has worked tirelessly to place by far the most fearsome challenge yet in his path. Very shortly afterward, a modest few among us decided that even this was not enough. Three years later, he found himself facing the same predicament but with an even greater plague of horrors and peril. Ten years ago, a young boy took his first trip down into the basement, facing the endless threats below to escape from the murderous delusions of his loving mother.