If you have downloaded a save file from the internet, you must "resign" it to your own account to avoid the "corrupted data" or "belongs to another user" error.
For single-player games, save editing has minimal developer impact. However, for games with asynchronous multiplayer (e.g., Death Stranding 's building sharing, Dark Souls 's soul memory), injected saves can create unbalanced experiences.
Unlike real-time memory editors (e.g., PS4 Cheater), Apollo operates on static save files. Users can export a save to USB, edit values (e.g., gold, XP) on a PC via a hex editor, and then use Apollo to re-import and re-encrypt the modified save.