Unity - The multiplatform game creation tools for everyone.
Studio Amplify - Create cutting edge music and audio apps
Godot Engine - Feature-packed 2D and 3D open source game engine.
Melody ML - Easily separate audio tracks using machine learning
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Theremin - Multitouch synth instrument that makes an array of sounds