Particle Editor
Small particle editor for GameMaker
OrthoGen v0.6
work in progress for a tool helping 3D artist make orthographic head images.
gooey
a sprite-based Gamemaker UI library
GameMaker - Lengthdir Calculator
GameMaker lengthdir_x,y calculator
Persimmon Visual Novel
Visual Novel engine for GameMaker Studio 2
GM Link - For Aseprite
Sync your Aseprite sprites to GameMaker with one click, no extra programs needed.
AseSync
Automatically update sprites in your GameMaker project when the matching Aseprite file is changed on disk!
Lizbox
A free toolbox for creating game assets
AGaTE Ver 0.3
Abe's Gamemaker Text Engine (Now with Character portraits + more!)
ASCII LION
An experimental glyph engine suite
Ander Lex Engine
make your game here
Behemoth Game Engine
A Game Engine that lets anyone become an Artist! Make Faux3D games without any modelling experience!
Camalecor
color pallete generator
Top Down Framework (Game Maker Studio 2.3)
A framework for the rapid development of top down shooters in Game Maker Studio.
Outline System for Gamemaker 2.3+
Outline system for GMS2
Online Fighting Engine - GameMaker Source Code
Source code gameMaker Online PvP Engine
Micro16
Micro16 Virtual Computer
MMO Engine 2 - GameMaker Source Code
Source code learn to create online multiplayer games with this engine
MMO Engine - GameMaker Source Code
GameMaker Online Engine
GM-Ez-Console
A simple terminal console to debug your GameMaker games.
Localization Editor
Edit, add and erase translations from CSV files
Computer Simulation Template
A complete template for creating your own Computer Simulation game in GameMaker!