When searching for a Binding of Isaac Repentance 100% save file, you will see two terms:
Pro tip: Only look for "Dead God" files. Normal 100% saves often break later game secrets because they haven't actually used every item.
Before launching the game, right-click Isaac in Steam → Properties → General → Uncheck "Keep games saves in the Steam Cloud for The Binding of Isaac." If you don't, Steam will overwrite your new 100% file with the old cloud version.
Launch the game. If you see the "Dead God" icon, you have succeeded.
If you don't want a pure Dead God file but want to skip the grind legitimately, consider installing the "Repentance Unlocker" mod from the Steam Workshop. binding of isaac repentance 100 save file
This mod doesn't give you a save file. Instead, it adds an in-game console command (unlock all) that legitimately triggers every achievement sequentially. It is safer than downloading a foreign dat file and is reversible.
Print this or copy it to a text file. Mark each item as complete:
Characters (34): [ ] Isaac [ ] Maggy [ ] Cain [ ] Judas [ ] ??? [ ] Eve [ ] Samson [ ] Azazel [ ] Lazarus [ ] Eden [ ] Lost [ ] Lilith [ ] Keeper [ ] Apollyon [ ] Forgotten [ ] Bethany [ ] Jacob & Esau
[ ] T. Isaac [ ] T. Maggy [ ] T. Cain [ ] T. Judas [ ] T. ??? [ ] T. Eve [ ] T. Samson [ ] T. Azazel [ ] T. Lazarus [ ] T. Eden [ ] T. Lost [ ] T. Lilith [ ] T. Keeper [ ] T. Apollyon [ ] T. Forgotten [ ] T. Bethany [ ] T. Jacob
Completion Mark Groups (per character): [ ] Boss Rush [ ] Hush [ ] Satan [ ] Isaac [ ] ??? [ ] Lamb [ ] Mega Satan [ ] Delirium [ ] Mother [ ] The Beast When searching for a Binding of Isaac Repentance
Challenges (45): [ ] 1–45 (ensure #34 and #43 are marked).
Final Achievements: [ ] Dead God (final).
Once you have your rep_persistentgamedata1.dat (or similar) file, here is how to install it without losing your existing progress.
Step 1: Locate your save folder.
Navigate to:
C:\Users\[YourUserName]\Documents\My Games\Binding of Isaac Repentance\ Pro tip: Only look for "Dead God" files
Step 2: Back up your saves. Copy every file in that folder to your desktop. Name the folder "Isaac Backup." This is crucial.
Step 3: Disable Steam Cloud (Temporarily). Right-click The Binding of Isaac in Steam > Properties > General. Toggle "Keep games saves in the Steam Cloud for The Binding of Isaac" to OFF. If you don't do this, Steam will overwrite your new 100% file with your old empty one.
Step 4: Overwrite the file.
Delete or rename the existing rep_persistentgamedata1.dat (the number corresponds to save slot 1). Paste the downloaded file. Rename it to match the exact file name of the one you removed.
Step 5: Launch and verify. Start Repentance. You should see the platinum save file icon. Enter the game and check "Stats" -> "Secrets." It should read 637/637.
Step 6: Re-enable Steam Cloud. Exit the game. Go back to Steam Properties and turn Cloud Saves back ON. When Steam asks "Which file do you want to keep?" select Local File (the new one).