Call of Duty - Call of Duty is a first-person and third-person shooter series by Infinity Ward.
OpenToonz - OpenToonz is an animation program that is a free software version of Toonz, the animation software...
Quake - Quake is a series of first-person shooter video games released by id Software.
Synfig Studio - Just another WordPress site
Xonotic - Xonotic is a free (GPL), fast-paced first-person shooter that works on Windows, OS X and Linux.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.