itch.io

A branching dialogue editor for game developers. Can be used with any game engine / framework​.

Procedural textures authoring tool

A Blender add-on for building tile based low-poly scenes with paint/map editor like tools

Turn any image into fancy pixel-art.

Free, easy to use and flexible level editor.

libnoise for Lua

Cross-platform (desktop, mobile, console) 3D and 2D game engine. Visual editor. glTF, X3D, Spine. Modern Pascal code.