Never download a decompiler from an untrusted third-party blog or file-hosting site. Look for open-source tools hosted on platforms like .
That said, there are for decompiling your own GMS2 projects (e.g., you lost the source) or for learning/educational reverse engineering: game maker studio 2 decompiler free install
A decompiler is a tool that takes a compiled executable file (like a .exe on Windows or .apk on Android) and attempts to reconstruct the original source code, scripts, and assets. For GMS2, this usually means extracting .gml code, sprites, sound effects, and object structures. Never download a decompiler from an untrusted third-party
: Available on GitHub , this tool focuses on extracting PNG sprites and basic project data. For GMS2, this usually means extracting
As of 2026, the most reliable, actively maintained, and free tool for inspecting and modifying GameMaker games—specifically those built with GM:S 1.4 or GMS2—is , created by the community-driven "UnderminersTeam." Why UndertaleModTool?
Disclaimer: Decompiling software without permission may violate copyright laws and terms of service. This guide is for educational purposes regarding reverse engineering, analysis, and modding. What is a GameMaker Studio 2 Decompiler?