Blender - Blender is the open source, cross platform suite of tools for 3D creation.
ENIGMA – LateralGM - LateralGM is a powerful IDE for ENIGMA, and both of these combine to offer you a cross-platform game environment.
ZBrush - ZBrush is a digital sculpting and painting software solution.
Godot Engine - Feature-packed 2D and 3D open source game engine.
Cinema 4D - Cinema 4D is a 3D modeling, animation, motion graphics and rendering application.
Lobster - Lobster is a game programming language.