99		Phoenix (Windows, 1999)
99		Star Wars: X-Wing Alliance (Windows, 1999)
99		Freespace 2 (Windows, 1999)
99		Wing Commander: Secret Ops (Windows, 1998)
99		Descent: Freespace - The Great War (Windows, 1998)
99		Independence War: The Starship Simulator (Windows, 1998)
99		Wing Commander IV: The Price of Freedom (DOS, 1996)
99		Wing Commander IV: The Price of Freedom (Windows, 2007)
99		Epic (DOS, 1992)
99		Wing Commander: Prophecy (Windows, 1997)
84		Spaceforce: Rogue Universe (Windows, 2007)
84		Darkstar One (Windows, 2006)
82		Parkan II (Windows, 2005)
81		Frontier: Elite II (DOS, 1993)
81		Space Rogue (DOS, 1989)
80		Darklight Conflict (DOS, 1997)
80		Battlecruiser Millennium (Windows, 2001)
80		Interstellar Rift (Windows, 2015)
80		Advanced NetWars (DOS, 1997)
80		Forced Alliance: The Glarious Mandate (Windows, 1997)
80		Terminus (Windows, 2000)
80		Parkan: The Imperial Chronicles (Windows, 1997)
80		Starglider II (DOS, 1989)
80		Space Rogue (Windows, 2016)
64		Wing Commander (DOS, 1990)
63		Star Wars: TIE Fighter (DOS, 1994)
63		Wing Commander II: Vengeance of the Kilrathi (DOS, 1991)
61		Star Wars: X-Wing Vs. TIE Fighter (Windows, 1997)
61		Star Wars: X-Wing - Collector's CD-ROM (DOS, 1994)
60		Star Wars: X-Wing - Collector's CD-ROM (Windows, 2000)
60		Star Trek: Klingon Academy (Windows, 2000)
60		Starway Fleet (Windows, 2017)
60		StarCalibur (Windows, 2003)
54		Galactic Command: Echo Squad (Windows, 2007)
53		Hyperspace Invader (Windows, 2006)
53		Star Wars: X-Wing (DOS, 1993)
53		The Last Starfighter (Windows, 2006)
52		G-Police (Windows, 1997)
52		Lunar Flight (Windows, 2012)
51		Stellar 7 (DOS, 1990)
51		AquaNox (Windows, 2001)
51		Void War (Windows, 2004)
50		Entropy (Windows, 2017)
50		Echelon (Windows, 2001)
50		Warhawk (Windows, 1996)
50		Combat Spatial: La Collection (Windows, 2001)
50		Tau Ceti: The Lost Star Colony (DOS, 1987)
50		Descent: Freespace - Darkness Rising (Windows, 1998)
50		Forbes Corporate Warrior (Windows, 1997)
50		Freespace 2: Dimension Pack (Windows, 2000)
50		Sandwarriors (DOS, 1997)
50		Hardwar (Windows, 1998)
50		Drift: When Worlds Collide (Windows, 2002)
50		AquaNox 2: Revelation (Windows, 2003)
50		Starglider (DOS, 1987)
50		Gravon (Windows, 2013)
50		Robocraft (Windows, 2014)
50		Phantasm (DOS, 1988)
50		Ice & Fire (Windows, 1995)
50		Star Conflict (Windows, 2013)
42		Sky Rogue (Windows, 2017)
40		Xenocide (DOS, 1990)
40		Nimbatus: The Space Drone Constructor (Windows, 2018)
40		RaidersSphere4th (Windows, 2015)
40		Vostok Inc. (Windows, 2017)
40		LineWars (DOS, 1990)
40		Memories of Mars (Windows, 2018)

Notes: Games similar to Dark Horizon, Games like Dark Horizon, Quazar Studio, Paradox Interactive AB, Windows, Action, Simulation, Sci-Fi, Futuristic, Shooter, 1st-person, Behind view, Space Flight, Simulation - Space combat, PC, Game Similarities.