John's Background Switcher - Switch backgrounds to trending imgur, reddit, tumblr threads

Call of Duty - Call of Duty is a first-person and third-person shooter series by Infinity Ward.

Muzei - Muzei is a live wallpaper that gently refreshes your home screen each day with famous works of art.

Xonotic - Xonotic is a free (GPL), fast-paced first-person shooter that works on Windows, OS X and Linux.

Variety Wallpaper Changer - Variety is a wallpaper changer for Ubuntu which is featureful, yet slim and very easy to use.

Battlefield - The latest news and updates for all things Battlefield, the EA and DICE video game franchise.