Creature
Spine
Synfig Studio
Unity 2D
Spriter Pro by BrashMonkey
Blender
CrazyTalk Animator
Animation Paper
Smart Objects
Creature
Smart ObjectsSpine - Spine is 2D animation software designed specifically for software and game development.
Synfig Studio - Just another WordPress site
Unity 2D - Unity 2D is a powerful and feature-rich game design solution built from the ground up to fulfill every basic and advanced need of the developer.
Spriter Pro by BrashMonkey - Spriter : an intuitive 2D animation tool for video game makers.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
CrazyTalk Animator - CrazyTalk Animator, the next level of 2D animation. Create actors using any photo or illustration.