The term "1001 Save File" historically refers to the ultimate completion percentage of previous expansions (like the 1,000,000% milestone in Afterbirth+). In the Repentance era, this equivalent fully-unlocked state means having all 637 achievements completed and every secret uncovered.

Below is a complete guide to acquiring, backing up, and installing a 100% completed save file for The Binding of Isaac: Repentance on PC. Step 1: Backup Your Original Save Data

If Steam Cloud remains active, Steam will detect that your local file differs from the cloud and automatically overwrite your newly downloaded save with your previous progress.

You can download verified game data files directly from the resources section of the The Binding of Isaac: Repentance Speedrun Leaderboard .

Navigate to C:\Users\[Your Username]\Documents\My Games\Binding of Isaac Repentance .