As of 2025, game developers are getting smarter. Many modern RMMZ plugins (VisuStella, FOSSIL) now store critical data in or IndexedDB rather than plain JSON inside the save file. Furthermore, new anti-corruption hashing algorithms are making it harder to simply "change the gold."
Games use these for story progression.
RPG Maker MZ games store player progress in a specific JSON-based format that is often obfuscated or encoded. An RMMZSave editor decodes these files, providing a user-friendly interface to "cheat" or debug a game. These editors are available as both web-based tools (allowing you to upload and edit files in a browser) and standalone software Key Features and Capabilities rmmzsave editor
is a third-party save file modifier specifically built for RPG Maker MZ (and backwards compatible with most RPG Maker MV titles). Unlike manual hex editing, this tool provides a clean, graphical interface to inspect and alter almost every variable stored in your file%.rmmzsave (or file%.rpgsave ) files. As of 2025, game developers are getting smarter
Disclaimer: RMMZSave Editor is not affiliated with Kadokawa, Gotcha Gotcha Games, or the original RPG Maker team. Use it at your own discretion and respect the intent of game developers when sharing edited saves publicly. RPG Maker MZ games store player progress in
This article is valid for version 5.6.3
