ChalkStreet - Become a 'Better' you. Learn something new everyday.
Unity - The multiplatform game creation tools for everyone.
Workshop - Learn new skills simply by doing them.
Godot Engine - Feature-packed 2D and 3D open source game engine.
Learn Anything - Search Interactive Maps to Learn Anything
Blender - Blender is the open source, cross platform suite of tools for 3D creation.