Natron - Natron is a piece of software designed for compositing purposes, and it is entirely free and open source. The software is node-based, which makes it easy to use and customize. Read more about Natron.
Unity - The multiplatform game creation tools for everyone.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Godot Engine - Feature-packed 2D and 3D open source game engine.
NUKE - Our industry-leading Nuke Studio, NukeX & Nuke offers cutting-edge toolkits covering node-based compositing, editorial and finishing.
Adobe After Effects - Motion graphics and visual effects toolset .