The most complete tool for modding, decompiling and unpacking Undertale (and other GameMaker games!)
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Updated
Jun 15, 2025 - C#
The most complete tool for modding, decompiling and unpacking Undertale (and other GameMaker games!)
Modular game engine built with MonoGame, with GMS2-like workflow and advanced level editor
A GML supplement library for GMS 2.3+
A RenderDoc settings file generator for GameMaker: Studio 2 projects.
A metroidvania engine made in Game Maker Studio 2
List of resources to learn game development related skills
A proof of concept mod loader for Gamer Maker Studio games that uses UndertaleModLib to patch mods independently so multiple mods can be used at once.
GitHub-ReadMe-Bagdes displaying "Made With game Maker" with the Game Maker Icon, based on shields.io badges, in markdown
An efficient bullet hell library made for Gamemaker Studio 2.3.0.
GameMaker project template for designing 2D video games based on the Sonic the Hedgehog series
An object pooling implementation in GML for Game Maker Studio 2.3+
A substitute IDE for GameMaker Studio 2 projects that works on linux
Static site for viewing Undertale/Deltarune game scripts made so we have a site to reference when citing code on Undertale/Deltarune Wiki (original by xkeeper).
My custom and pretty readable version of a RegEx like string manipulator made in GM for GM 2.3+
Game Maker Language with types (2.3 beta)
Manages multiple animations for a single sprite strip by flagging start and end points of the animations for GameMaker Studio 2.3.3+
an easy HTTP server implementation for GameMaker projects
💡 A game where you're a blur of light trying to escape an encroaching darkness made for the 2012 GameMaker Steam Workshop.
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