82		Gate 88 (Windows, 2004)
81		Cosmic Trip (Windows, 2017)
80		Urban Assault (Windows, 1998)
80		Cosmos Remake (Windows, 2007)
80		Star Trek: Generations (Windows, 1997)
80		Kristor (DOS, 1988)
80		Star Reach (DOS, 1994)
74		Star Control 3 (Windows, 2011)
73		Executive Assault (Windows, 2015)
73		Savage: The Battle for Newerth (Windows, 2003)
70		Star Control 3 (DOS, 1996)
70		Thunder Brigade (Windows, 1998)
55		Sanctum 2 (Windows, 2013)
54		Nuclear Dawn (Windows, 2011)
53		Love (Windows, 2010)
52		Raven Squad (Windows, 2009)
51		Battlezone II: Combat Commander (Windows, 1999)
50		Command Adventures: Starship (DOS, 1993)
50		Narco Police (DOS, 1990)
50		Walkover (Windows, 2003)
50		Rescue (DOS, 1990)
50		Strike Base (DOS, 1996)
50		Gravity Well (Windows, 1997)
50		Battle Beyond (DOS, 1994)
50		Ancient Amuletor VR (Windows, 2017)
50		Scorched Planet (Windows, 1996)
50		Damage Incorporated (Windows, 1998)
50		Global Domination (Windows, 1998)
50		Switchblade (Windows, 2018)
50		Voronium: Locust Sols (Windows, 2018)
50		Armed to the Gears (Windows, 2018)
50		CyberDome! (Windows, 1996)
50		Scorched Planet (DOS, 1996)
44		Cannon Fodder 2 (Windows, 2013)
44		CYPHER (Windows, 2013)
42		Blockstorm (Windows, 2015)
42		Centauri Sector (Windows, 2015)
42		Uprising: Join or Die (Windows, 1997)
41		Dead Star (Windows, 2016)
40		Star Control: The Ur-Quan Masters (Windows, 2017)
40		Space School Simulator: The Academy (DOS, 1987)
40		Rapid Gunner: Tactical Shooter (Windows, 2004)
40		Wulfram II (Windows, 2002)
40		Silencer (Windows, 1998)
40		Tommy's Starball (DOS, 1986)
40		Dead Reckoning (Windows, 1997)
40		Flames of Freedom (DOS, 1992)
40		Cannon Fodder 2 (DOS, 1994)

Notes: Games similar to Natural Selection II, Games like Natural Selection II, Unknown Worlds Entertainment, Inc., Unknown Worlds Entertainment, Inc., Windows, Action, Strategy, Tactics, Sci-Fi, Futuristic, Shooter, Stealth, Real-Time, 1st-person, Top-down, PC, Game Similarities.