Edmund McMillan has stated that Repentance is the "final" DLC. However, post-launch patches (like the recent online co-op update) changed the save file structure slightly.
Prediction for 2025-2026: Most save editors are open source. When a patch drops, the community updates the editor within 48 hours. As of this writing, the Hypnoot editor is fully compatible with the latest v1.7.9b patch.
If you want to stay safe, join the "Binding of Isaac Modding Discord." They have pinned threads with the most up-to-date editor links. The Binding Of Isaac Repentance Save Editor
Before editing, copy the entire Binding of Isaac Repentance folder to your desktop or a backup folder.
Not all save editors work with the latest version of Repentance. Because the expansion added 130+ new items, 20+ new bosses, and a completely secondary "Tainted" character roster (Tainted Isaac, Tainted Lost, etc.), old editors will corrupt your data. Edmund McMillan has stated that Repentance is the
Based on current community testing, here are the three most reliable tools:
You are a console player (Switch, PS5, Xbox) who just bought the PC version for mods. You do not want to re-unlock Tainted Cain. You want to play Repentance with your PC mods now. The editor ports your "status" in 5 minutes. Before editing, copy the entire Binding of Isaac
Status: For masochists.
You can rename save.dat to save.xml and edit it in Notepad++. However, Repentance uses encrypted binary blobs for post-it notes. Unless you know the exact hex codes for "Mother's Knife unlock," do not attempt this. You will corrupt your save.