Corrupt data is a savefile state where the savefile can not be loaded due to an error. There are several conditions that may induce corruption in the savefile.
| This article is incomplete. Please help to improve it, or discuss the issue on the talk page.
Issues: Verification on the specifics of what causes corruption is needed. |
Importing Save Files Manually[]
Importing save files may not work properly, as some important things might have not been moved in the manual import, resulting in an unusable imported version.
Installing DLCs[]
Due to the numerous changes between DLCs, automatic savefile importing may also result in errors when installing Afterbirth+ or Repentance.
Errors are more likely while having a save file with a run already started.[citation needed]
Hardware/Software Issues[]
Misbehaving hardware or software on the computer/console may cause damage to the game state while it's held in memory, and if written to disk can corrupt the save file.
Modifying Game Files[]
Modified game files could cause unstable or even deleterious effects on the game; the files should be edited only with proper modding knowledge and tested on a save file that is not important.
Modifying Save Files[]
Although the save data can be edited directly using binary/hex editing tools, it is very risky as the format is complex and an edit without accounting for integrity of the data and checksums will likely render the file unusable.