mMcFab

Allows mixed triangle primitive types in buffer buildng to make manual building less tedious
Play with an learn about virtual parrots!
Educational
Export static models from Blender and load them directly into GameMaker Studio
GIF
Convert flat horizontal tiling textures to convincing skyboxes with relative ease!
Extension to connect GameMaker Games (even HTML5!) to Twitch chat
A bundle of misc. scripts for useful functions
A ludum dare game
Platformer
Play in browser
Puzzle
Play in browser