Antibirth added new characters, bosses, boss variants, items, monsters, room layouts, and more to Rebirth, and much of that is now officially adopted into The Binding of Isaac thanks to Repentance – and while now it’s gotten the official blessing from publisher Nicalis and Issac creator Edmund McMillen, the biggest difference here is that now you’ll have to pay for it. The biggest change in Repentance is the incorporation of the free fan-created expansion Antibirth into The Binding of Isaac: Rebirth proper.
Repentance, a DLC add-on for The Binding of Isaac: Rebirth, is out now, and it adds a heaping shovelful of new content into the already feature-packed roguelike game. The Binding of Isaac: Rebirth now has a long-awaited expansion that integrates a massive community modding project.