If you’ve become as enraptured with Isaac as the rest of us and you still want more, we’re here to provide our absolute best - and more of it than you’ve ever dreamed of - all for free.Īntibirth is entirely fan-made and we were not affiliated with Edmund McMillen and Nicalis at the time of its release. As its zealous modding community has proved, it’s only natural that many among us would feel the urge to try to help carry the torch and make it partly our own, but Antibirth was the first and is presently the only Isaac mod to reach deep into the core of Rebirth to enable the depth and scope of a full expansion, aspiring even to the size of the official DLC, Afterbirth. The Binding of Isaac has had one of the most involved and robust communities of fans around since its initial release and has inspired countless players and developers with its peculiar sensibilities and creative blend of roguelike flavor.

A nearly full and original new soundtrack, evocative of classic Isaac.

Several new or enhanced features for local cooperative play.

Bigger and greater secrets than ever before.

A new secret final chapter for Isaac to endure.

80+ new enemies to face one after another.

18+ new trinkets to swap and strategize with.

90+ new collectible items to help Isaac fight.

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.

Five 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.

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