Call of Duty - Call of Duty is a first-person and third-person shooter series by Infinity Ward.
Xnapper - Take beautiful screenshots instantly
Quake - Quake is a series of first-person shooter video games released by id Software.
Screenzy - A simple screenshot beautifier
Xonotic - Xonotic is a free (GPL), fast-paced first-person shooter that works on Windows, OS X and Linux.
BrandBird - Brand your Twitter content uniquely