OpenGMK

OpenGMK is a modern rewrite of the proprietary GameMaker Classic engines, providing a full sourceport of the runner, a decompiler, a TASing framework, and libraries for working with gamedata yourself. It’s being worked on almost every day! We’re constantly adding new features and updating the code. Please remember that this project is a work in progress and is unreleased. Until there’s an official stable release, please note that your savestates may break in future releases.