: This automated tool is ideal for syncing in-game progress with Steam achievements. By using the Steam Web API
With a save editor:
Several updated tools and methods are available for editing (and the recent Repentance+ ) save files as of early 2026. These tools allow you to unlock achievements, edit character stats, or convert saves between game versions. 1. Top Save Editor Tools the binding of isaac repentance save editor upd
Avoid random “save editor” sites from first Google results – many are outdated (Afterbirth only) or contain malware. : This automated tool is ideal for syncing
For advanced users, there are open-source desktop applications available on GitHub. These tools offer deeper customization, such as precise editing of your bestiary, item history, and specific challenge completion states. Always ensure you download these exclusively from trusted, open-source GitHub repositories to protect your system. How to Find Your Repentance Save Files These tools offer deeper customization, such as precise