itch.io

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

simple web-based free and open-source visual novel editor, it can be used in web browser.

Free, easy to use and flexible level editor.

Free and open source 2D and 3D game engine

microStudio game engine, easy to learn, packed with features

Easy to use app to create beautiful maps

2D level editor for indies from an industry veteran

Your free and open source sprite editor