It is from Kadokawa / Gotcha Gotcha Games.
: Decrypts and encrypts various file types: Images : .rpgmvp (MV) and .png_ (MZ). Audio : .rpgmvm / .m4a_ and .rpgmvo / .ogg_ .
: Supports both RPG Maker MV and MZ built-in encryption. petschkos rpg-maker mv & mz-file decrypter
RPG Maker MV and MZ use HTML5-based engines, storing game assets (images, audio, data) in an encrypted format when developers choose to protect their projects. The is a tool designed to reverse this encryption — but it comes with important ethical and legal considerations.
Using the decrypter is in specific scenarios: It is from Kadokawa / Gotcha Gotcha Games
The tool is typically known for a simple graphical user interface (GUI). Users can often drag an encrypted file (or a batch of files) directly onto the application window to begin the process immediately.
Are you planning to use the for a few files or the Java version to decrypt a full project? RPG-Maker-MV & MZ Decrypter by Petschko : Supports both RPG Maker MV and MZ built-in encryption
The Java version runs on Windows, Linux, and macOS. How to Use the Decrypter Using the tool is generally a simple four-step process:
✅ – If you encrypted your game but lost the source files. ✅ Translation/modding with permission – Many developers allow modding; you can decrypt to create patches. ✅ Educational research – Learning how encryption works in game engines. ✅ Accessibility fixes – E.g., changing font/size for disabled players if the developer is unresponsive (but still ethically gray).
Just because a tool can decrypt files doesn’t mean you should use it without permission. Respect the countless hours developers spend creating their games.
Help artists check if their resources are being used in a game without proper credit. Key Features