70		The Turing Test (PlayStation 4, 2017)
50		Attractio (PlayStation 4, 2016)
41		Norse by Norse West: The Return of the Lost Vikings (PlayStation, 1997)

Notes: Games similar to Portal 2, Games like Portal 2, Valve Corporation, Valve Corporation, PlayStation 3, Action, Puzzle, Sci-Fi, Futuristic, Platform, Comedy, 1st-person, Source, Half-Life, Havok, Female, Sony PlayStation, PSX, PS1, PS2, PS3, PS4, Game Similarities.