Godot Engine - Feature-packed 2D and 3D open source game engine.
Synfig Studio - Just another WordPress site
Unity - The multiplatform game creation tools for everyone.
FaceRig - FaceRig is a program that aims to enable anyone with a webcam to digitally embody awesome...
Unreal Engine - Unreal Engine 4 is a suite of integrated tools for game developers to design and build games, simulations, and visualizations.
MocapX - Facial Motion capture app Maya and iPhone. With the MocapX animator, you can easily use the iPhone camera to animate characters in real time directly in Maya. MocapX tools enable you to use any custom or production rig as well as any Maya feature.