65		Dark Moon (DOS, 1999)
65		Fire Zone (Windows, 1999)
65		Solaris 1.0.4. (Windows, 2000)
64		Freddy (Windows, 1998)
64		Gunner 3 (Windows, 2000)
64		Galactic Patrol (Windows, 1998)
63		Intensity XS: ReCharge (Windows, 2001)
63		Hydorah (Windows, 2010)
63		Hurrican (Windows, 2007)
63		Bit Blaster XL (Windows, 2016)
63		Intensity XS (Windows, 2001)
63		UFO-Hunt 2001 (Windows, 2001)
63		Lazarus (DOS, 1997)
63		Realm (DOS, 1997)
63		GFID Advanced Place: Project φ (Windows, 2001)
63		Starcom (DOS, 1997)
63		The Fourth Generation (DOS, 1997)
62		Alien Tequila (Windows, 2002)
62		Entrance Gate (Windows, 2002)
62		BII-NARY: The War Against Pop-Ups (Windows, 2002)
62		MURI (Windows, 2013)
62		Xenophage: Alien BloodSport (DOS, 1996)
62		Super Hydorah (Windows, 2017)
62		MAZ! (Windows, 2017)
62		Cyber Police (DOS, 1996)
62		Stillhunt (DOS, 1996)
62		Super Cyborg (Windows, 2014)
62		Firewind (DOS, 1996)
62		Shatter (Windows, 2010)
62		Revolver360 Re:Actor (Windows, 2014)
62		Hunter Hunted (Windows, 1996)
61		Syder Arcade (Windows, 2012)
61		Prototype (DOS, 1995)
61		Nick Naster's eXtinction (Windows, 2003)
61		Into the Sun: Projected Distruction (DOS, 1995)
61		Awesomenauts (Windows, 2012)
61		The Day 5: Assault Dragon (DOS, 1995)
61		Meteor Mission (DOS, 1995)
61		Alien Stars (Windows, 2008)
61		VanSlug: X Mission (DOS, 1995)
61		The Angry Video Game Nerd Adventures (Windows, 2013)
61		Primal Rage (DOS, 1995)
61		Alien Horde (Windows, 2003)
61		Blood Money (DOS, 1990)
61		SK-111 'Star Killer' (Windows, 1995)
60		Bullshot (Windows, 2016)
60		Duke Nukem (DOS, 1991)
60		Uriel's Chasm 2: Et (Windows, 2015)
60		Zappa Roidz (DOS, 1989)
60		Anyman (Windows, 2012)
60		Side Arms Hyper Dyne (DOS, 1988)
60		Duke Nukum: Episode 2 - Mission: Moonbase (DOS, 1991)
60		Armed and Gelatinous (Windows, 2016)
60		Zheros (Windows, 2016)
60		Duke Nukum: Episode 3 - Trapped in the Future (DOS, 1991)
60		Captain Power and the Soldiers of the Future (DOS, 1988)
60		Bob Morane: Science Fiction 1 (DOS, 1987)
60		VectorMan (Windows, 2010)
60		Leave Home (Windows, 2010)
60		IO (Windows, 2007)
60		Varia (Windows, 2007)
60		Zub (Windows, 2007)
60		Blessed (Windows, 2007)
60		GraviTron (Windows, 2006)
60		Uriel's Chasm (Windows, 2014)
60		The Cleaner (Windows, 2008)
60		Thrustburst (Windows, 2008)
60		Menace (DOS, 1989)
60		Astro Tripper (Windows, 2009)
60		Glum Buster (Windows, 2009)
60		Xenophage: Alien BloodSport (Windows, 2015)
60		Warside (Windows, 2015)
60		Illusion Blaze (DOS, 1994)
60		The Day 4: Icarus (DOS, 1994)
60		World Quest (DOS, 1993)
60		Asteria (Windows, 2014)
60		Duke Nukem II (DOS, 1993)
60		DubWars (Windows, 2016)
60		C-RUSH (Windows, 2014)
60		Power-Up (Windows, 2014)
60		Geu Nal-i Omyeon 3: Dragon Force (DOS, 1993)
60		Jim Power: The Lost Dimension in 3D (DOS, 1993)
60		Dalek Attack (DOS, 1992)
60		Space Vegetables (DOS, 1992)
60		Metroid Sigma (Windows, 2015)
60		Weapon of Choice (Windows, 2015)
60		Gongbat (Windows, 2015)
60		Entity (DOS, 1994)
60		IAS (DOS, 1994)
60		Duke Nukem (Windows, 2013)
60		Hurdles (DOS, 1994)
60		Duke Nukem II (Windows, 2013)
60		Hydorah (Windows, 2013)
60		Reflex Point (DOS, 1985)
60		Street Fighter X Mega Man (Windows, 2012)
60		Journey to Silius (Windows, 2017)
60		Gaurodan (Windows, 2013)
60		Xatax (DOS, 1994)
60		The Orion Project (DOS, 1994)
60		Dark Matter (Windows, 2013)
60		Duke Nukum: Episode 1 - Shrapnel City (DOS, 1991)
60		BiFrost (Windows, 2013)
60		Super Beemger (DOS, 1994)
60		Gentrieve (Windows, 2010)
60		Killer Baby (Windows, 2006)
60		WarMachine Overload (Windows, 2005)
60		Monadius (Windows, 2005)
60		Absolute Blue (Windows, 2005)
60		Inescapable (Windows, 2013)
60		Halo Zero (Windows, 2005)
60		Robocop 2D 2: Robocop vs Terminator (Windows, 2005)
60		Adagio (Windows, 2005)
60		Fren-ze (Windows, 2006)
60		Star Blaze (Windows, 2005)
60		Major Havoc (Windows, 2010)
60		Steel Saviour (Windows, 2004)
60		Heckpoint (Windows, 2017)
60		Solar 2 (Windows, 2011)
60		Shudder (Windows, 2018)
55		Space Fortress (DOS, 1999)
55		U.R.B.A.N The Cyborg Project (DOS, 1999)
55		Alien Invaders 2000 (Windows, 1999)
55		Zeroth Zone (DOS, 1999)
55		Space Invaders (Windows, 1999)
55		LaserAge (Windows, 1999)
54		Ricochet (Windows, 2001)
54		Mega Man X4 (Windows, 1998)
54		Mission Cobra 98 (DOS, 1998)
54		TAGAP 2: The Apocalyptic Game About Penguins 2 (Windows, 2011)
54		Just Shoot The Thing! (Windows, 2000)
54		Bio Freaks (Windows, 1998)
54		Zak Zapper (Windows, 2000)
54		3D Missile Madness (Windows, 2000)
54		Operation Spacehog (DOS, 2000)
54		Mega Man X3 (Windows, 1998)
54		PixelShips (Windows, 2000)
54		Gravity Force (DOS, 2000)
54		Operation Spacehog (Windows, 2000)
54		Gravity Force (Windows, 2000)
54		Invaders From Neptune! (Windows, 2000)
53		Akane (Windows, 2018)
53		3D Mars Mission (Windows, 2001)
53		Orbsters (Windows, 1997)
53		TAGAP: The Apocalyptic Game About Penguins (Windows, 2007)
53		N++ (Windows, 2016)
53		Out of This World (DOS, 1992)
53		Mini Ghost (Windows, 2017)
53		KOPS (Windows, 2001)
53		Jets 'n' Guns (Windows, 2004)
53		Betamax (DOS, 1997)
53		Super Stupid Space Invaders (DOS, 1997)
53		Fox Ranger 3: Last Revelation (DOS, 1997)
53		CHAMP Invaders (DOS, 1997)
53		Iji (Windows, 2008)
53		CHAMP Galagon (DOS, 1997)
53		Avenger (DOS, 1997)
53		Mono Space (DOS, 1997)
53		Blaster! (DOS, 1997)
53		Hornado (Windows, 2001)
53		Mars Taxi (Windows, 1997)
53		Nebula Fighter (DOS, 1997)
52		Pink Hour (Windows, 2014)
52		Natomi Bottle Rockets Extreme (Windows, 2002)
52		TIE Invaders (DOS, 1996)
52		Platypus (Windows, 2002)
52		Super Transball 2 (Windows, 2002)
52		Flynn Sprint (DOS, 1996)
52		Polandball: Can Into Space! (Windows, 2016)
52		Kero Blaster (Windows, 2014)
52		Cybernoid II (Windows, 2002)
52		SideLine (DOS, 1996)
52		Super Mutant Alien Assault (Windows, 2016)
52		Juanito Arcade Mayhem (Windows, 2017)
52		S.T.O.R.M. (DOS, 1996)
52		Cash Invaders (DOS, 2002)
52		Abductor (DOS, 1996)
52		Stargunner (DOS, 1996)
52		SideLine (Windows, 1996)
52		Abduction Bit (Windows, 2016)
52		KOPS (DOS, 1996)
52		CHAMP Galaxia (DOS, 1996)
52		Alien Rampage (DOS, 1996)
52		DOOM 2D (DOS, 1996)
52		Abuse (DOS, 1995)
52		Galagatron (Windows, 1996)
52		Max 2: Counterattack (Windows, 2002)
52		Interpose (DOS, 1996)
52		Iron Man / X-O Manowar in Heavy Metal (DOS, 1996)
52		Bionic Commando: Rearmed (Windows, 2008)
51		3105 A.D. (Windows, 2003)
51		Ghost 1.0 (Windows, 2016)
51		Transball (DOS, 2003)
51		Procyon (Windows, 2014)
51		Fighter (Windows, 1995)
51		Invaders 95 (Windows, 1995)
51		Good Robot (Windows, 2016)
51		Violent Vengeance: The Universe Hero (DOS, 1995)
51		Axiom Verge (Windows, 2015)
51		Amaranthine (Windows, 2016)
51		Insanely Twisted Shadow Planet (Windows, 2012)
51		Steredenn (Windows, 2015)
51		Jets 'n' Guns Gold (Windows, 2007)
51		Turrican II: The Final Fight (DOS, 1995)
51		Arctic Moves (DOS, 1995)
51		Indecent (DOS, 1995)
51		Pink Heaven (Windows, 2015)
51		Nebula Fighter (Windows, 2003)
51		Capsized (Windows, 2011)
51		Space Invaders (DOS, 1995)
51		Intrusion 2 (Windows, 2012)
51		Delvion Star Interceptor (DOS, 1995)
51		CounterAttack (Windows, 2016)

Notes: Games similar to Isin-Densin Zero, Games like Isin-Densin Zero, Grafix Digital Garden, Grafix Digital Garden, Windows, Action, Sci-Fi, Futuristic, Arcade, Shooter, Side view, PC, Game Similarities.