Grit Game Engine - The Grit Game Engine is an MIT-Licensed Open Source Game Engine that is highly scriptable via Lua.
FaceRig - FaceRig is a program that aims to enable anyone with a webcam to digitally embody awesome...
Pygame - Pygame is a set of Python modules designed for writing games.
FaceFX - A Commercial Software for Animating and scripting facial animation based on Audiotracks
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
VUP - VTuber Maker & Animation & MMD/Live2D facial capture software.