Start Repentance . You should see the platinum save file icon. Enter the game and check "Stats" -> "Secrets." It should read 637/637.
For many players, The Binding of Isaac: Repentance is the pinnacle of the series, but its "Dead God" achievement—requiring every single unlock, completion mark, and item in the game—can take hundreds, if not over a thousand, hours to earn. Whether you’ve lost your progress due to a corrupt file or simply want to dive into the full sandbox experience without the grind, a is the most common solution. What is a 100% Save File? binding of isaac repentance 100 save file
The Binding of Isaac: Repentance , achieving a 100% save file is defined by the Start Repentance