This is a powerful but also a dangerous tool. It's often used by developers to create "chapter select" screens or to patch problematic saves. However, it can also be used maliciously in mods.
Some games use config.save_encryption = True . Then saves are encrypted with a key derived from the game’s name and version. renpy edit save file link
"I loaded my save, and the background music was a song I wrote in high school but never recorded. How??" This is a powerful but also a dangerous tool
Always duplicate your entire save folder before executing edits. Some games use config
Ren’Py save files are not plain text; they are serialized using Python's pickle module. If you try to open them in Notepad, you will see a jumble of unreadable binary code.
She dismissed it as a weird Easter egg. Until a bug report came in.