ScrollMagic - The jQuery plugin for magical scroll interactions.
Unity - The multiplatform game creation tools for everyone.
Lax.js - Create beautiful & smooth animations when you scroll
Godot Engine - Feature-packed 2D and 3D open source game engine.
ScrollReveal - ScrollReveal is a tool to add scroll animations for web and mobile browsers.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.