65		The Turing Test (Windows, 2016)
64		Attractio (Windows, 2016)
54		Portal 2 (Windows, 2011)
53		Portal (Windows, 2008)

Notes: Games similar to SolarGun, Games like SolarGun, Mechanical Boss, Mechanical Boss, Windows, Action, Puzzle, Sci-Fi, Futuristic, Platform, 1st-person, PC, Game Similarities.