Unity - The multiplatform game creation tools for everyone.
Commandline Challenge - Test your command line skills
Godot Engine - Feature-packed 2D and 3D open source game engine.
Prompt - Prompt provides fully-integrated writing education solutions, combining instruction, curriculum, and feedback. We support educational institutions, companies, and individuals.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Cwiki - A Command line interface for searching Wikipedia!