The most complete tool for modding, decompiling and unpacking Undertale (and other GameMaker games!)

A highly flexible, voxel-powered game engine with an embedded editor. Create games using Lua, the native C/C++ API, and assets authored in voxel editors like MagicaVoxel or Avoyd.

Modular game engine built with MonoGame, with GMS2-like workflow and advanced level editor

A free, open source 2D online RPG engine in C#/.NET

Mega Man GameMaker Studio 1.4.1760 Engine

A shoot-em-up made in 48 hours for the 20th gm(48) game jam.

TileGameLib is a C/C++ library for quick and easy development of tile-based, pseudo-8-bit games.

A library with demo projects to learn Game Maker Studio and Game Maker Language (GML)

Also known as DBGHELP.DLL; Scheduler resolution fix for GM:Studio and GM8.1 (not to be confused with Debugger Helper)

The public repo of Retro FPS Studio (RFS), for educational reading and not for reuse. See license.

You can draw your map using by this Map Editor project.

A metroidvania engine made in Game Maker Studio 2

A modern fork of various IWBTG engines for GM8.2

A RenderDoc settings file generator for GameMaker: Studio 2 projects.

3000+ RGB colors (2k pantone) in code ready formats for SFML (C++), Game Maker (gml), Godot (tscn) & Unity (C#)

An efficient bullet hell library made for Gamemaker Studio 2.3.0.

A scope non-breaking foreach loop for arrays, lists, maps, structs, grids, strings and number ranges

GitHub-ReadMe-Bagdes displaying "Made With game Maker" with the Game Maker Icon, based on shields.io badges, in markdown

Fan engine for the addictive video game series BIT.TRIP

GameMaker project template for designing 2D video games based on the Sonic the Hedgehog series