78		Head Over Heels (Windows, 2004)
65		rE/Generation (Windows, 2004)
60		Phobos '99 (DOS, 1994)
56		Exolon DX (Windows, 2005)
55		Jetpak: Solar Crisis (Windows, 2004)
51		D/Generation (DOS, 1991)
50		Obliterator (DOS, 1989)
50		D/Generation (Windows, 2015)
50		Metal Mutant (DOS, 1991)
48		Zub (Windows, 2007)
45		LEGO Star Wars II: The Original Trilogy (Windows, 2006)
45		Prey (Windows, 2006)
44		RoboBlitz (Windows, 2006)
43		LEGO Star Wars: The Video Game (Windows, 2005)
42		Robots (Windows, 2005)
41		Heat Signature (Windows, 2017)
41		A Robot Named Fight! (Windows, 2017)
41		Grow Home (Windows, 2015)
41		Planet of the Eyes (Windows, 2015)
41		Vectorman 2 (Windows, 2012)
41		Star Trek: Elite Force II (Windows, 2003)
41		Snapshot (Windows, 2012)
40		Galapagos (Windows, 1997)
40		Mega Man X5 (Windows, 2002)
40		Farscape: The Game (Windows, 2002)
40		Commander Keen 5: The Armageddon Machine (DOS, 1991)
40		Grow Up (Windows, 2016)
40		Mighty No. 9 (Windows, 2016)
40		Commander Keen 2: The Earth Explodes (DOS, 1990)
40		Shiny (Windows, 2016)

Notes: Games similar to Alien 8, Games like Alien 8, RetroSpec, RetroSpec, Windows, Action, Sci-Fi, Futuristic, Platform, Puzzle elements, Isometric, Robot, Space station, Spaceship, PC, Game Similarities.