LDtk level editor
2D level editor for indies from an industry veteran
Armory3D
3D Game Engine for Blender
sfGML
A Haxe➜GameMaker compiler
GameMaker Visualizer
Formatted output and operations over GameMaker's "object information"
Dial-A-Platformer
prototype a jump, like, really quickly
Paddy-Editor
An open-source 2D game editor
ScatterPlan
A tiny, local-first task planner for your scatter brain.
CleanInk
Clean your .ink files for translation!