Manual Camera for iPhone - Custom exposure for your iPhone camera
Xonotic - Xonotic is a free (GPL), fast-paced first-person shooter that works on Windows, OS X and Linux.
NeuralCam Night Photo - The first night mode camera for the iPhone
Quake - Quake is a series of first-person shooter video games released by id Software.
Halide - A premium camera for your phone
Counter-Strike - Counter-Strike is a PC-exclusive FPS video game developed by Valve Corporation.