Always include a "ReadMe" with your patch. Even the best "universal" tools can be daunting for first-time users. The Future of GameMaker Modding
If you clarify what exactly you were hoping to patch (your own game? a specific game? the GameMaker IDE?), I can give a more focused and legal technical guide. universal gamemaker patcher
A Universal GameMaker Patcher is best implemented as a small, auditable CLI with manifest-driven actions that favor structured project edits and controlled asset swaps. Start with support for source export edits and safe asset replacement; add binary patching only when necessary and with strong verification and rollback. Always include a "ReadMe" with your patch
I think there might be a slight confusion in the naming — there is no widely known tool specifically called in the official GameMaker ecosystem. However, you’re likely referring to one of two things: a specific game