Tales Untold - Smart stories for smart kids (and smart parents, too).
Unity - The multiplatform game creation tools for everyone.
My Storytime - Tell stories, even when you’re apart with Google Assistant
Godot Engine - Feature-packed 2D and 3D open source game engine.
The WALLOBOOKS Project - A magical storybook anybody can write, every kid can read
Blender - Blender is the open source, cross platform suite of tools for 3D creation.