75		Żmija (DOS, 1994)
75		C-Mato (DOS, 1994)
75		Pizza Worm (DOS, 1994)
74		Červii (DOS, 1993)
74		Snaker (DOS, 1993)
74		Mumsaren (DOS, 1995)
72		Robak (DOS, 1991)
71		Viper (DOS, 1998)
70		WinAmp 5.5 (included game) (Windows, 2007)
70		Magic Snake II (Windows, 2004)
70		Funky Python (Windows, 2008)
70		Zneik (Windows, 2007)
70		qrth-phyl (Windows, 2012)
70		Powersnake (Windows, 2005)
70		A Snake's Life (Windows, 2002)
70		Serpy (DOS, 1986)
70		Feed the Snake (Windows, 2003)
70		Worm 2000 (Windows, 2001)
70		Tommy's Gorilla Ball Train (DOS, 1987)
70		Snakey (Windows, 2002)
64		Wurm (DOS, 1993)
64		Pune (DOS, 1995)
60		Plasmaworm (Windows, 2001)
60		Serpent (DOS, 1982)
60		Snakeez (Windows, 2017)
60		Squirm (DOS, 1982)
60		Squake (Windows, 2017)
60		The Worm (DOS, 1985)
60		Hoser (DOS, 1982)
60		Nerm of Bemer (DOS, 1984)
60		PacWorm (DOS, 1982)
60		Rainbow Snake (Windows, 2017)
45		Pako (DOS, 1994)
45		XQuest (DOS, 1994)
45		ImpArea (DOS, 1994)
45		Arya Vaiv (DOS, 1994)
45		Star Castle PC (DOS, 1994)
45		Superfly (DOS, 1994)
45		Journey to the Centre of the Earth! (DOS, 1994)
45		Karl Quappe (DOS, 1994)
45		Pinball Arcade (DOS, 1994)
45		CHAMP Ms. Pacman (DOS, 1994)
45		Micropede (DOS, 1994)
45		Cheesy Invaders (DOS, 1994)
45		Pinball Illusions (DOS, 1995)
45		Raiden (DOS, 1994)
45		Most Certainly Not Pool II (DOS, 1994)
44		Baryon (DOS, 1995)
44		Sky & Rica (DOS, 1995)
44		Ms Pac PC (DOS, 1995)
44		Dstroy (DOS, 1995)
44		R-activ (DOS, 1995)
44		Mega Blast (DOS, 1995)
44		Toad (DOS, 1995)
44		Kitty of Death (DOS, 1995)
44		Pako 2 (DOS, 1995)
44		Pong (DOS, 1995)
44		Megapede (DOS, 1993)
44		Jump! (DOS, 1993)
44		SpaceWORM (DOS, 1995)
44		Super Hexagon (Windows, 2012)
44		Dune 3 aneb Achtung! Die Kurve... (DOS, 1995)
44		Eight Ball Deluxe (DOS, 1993)
44		Pinball Dreams (DOS, 1993)
44		Velcro Mind (DOS, 1995)
44		Pac PC II (DOS, 1995)
44		GoGo!! Uribyeol (DOS, 1993)
44		Vlak (DOS, 1993)
44		VGA Kix (DOS, 1993)
43		Megapede (DOS, 1992)
43		Angel Egg (Windows, 1996)
43		Mega Phoenix (DOS, 1992)
43		Galacta: The Battle for Saturn (DOS, 1992)
43		Llamatron: 2112 (DOS, 1992)
43		The Tomb (DOS, 1992)
43		Gobman (DOS, 1992)
43		Snake Game (DOS, 1992)
43		Luxor Evolved (Windows, 2012)
43		Balls of Steel (Windows, 1997)
43		Ravage (DOS, 1996)
43		Splody (Windows, 2017)
43		Blast Doors (Windows, 1996)
43		Ultimate Pinball (DOS, 1996)
43		Tempest 2000 (Windows, 1996)
43		Invaders 1978 (DOS, 1996)
43		Greedy (DOS, 1996)
43		Operation Carnage (DOS, 1996)
43		Apocalypse Cow (DOS, 1996)
43		They Call Me... The Skul (DOS, 1996)
43		Piranha (DOS, 1996)
43		Gobble Man (DOS, 1996)
43		Tempest 2000 (DOS, 1996)
43		They Call Me... The Skul (Windows, 1996)
42		Mini-Dead (Windows, 2018)
42		Rapid Tap (Windows, 2018)
42		Mustang (DOS, 1991)
42		Solid State Pinball: Tristan (DOS, 1991)
42		Popper (Windows, 1997)
42		Wibbling Wilf (DOS, 1991)
42		Troika (DOS, 1991)
42		PARAGON (DOS, 1991)
42		Echoes+ (Windows, 2015)
42		Pajama Sam's SockWorks (Windows, 1997)
42		Danmaku Unlimited 2 (Windows, 2013)
42		Frogger (Windows, 1997)
42		WinPac 2 (Windows, 1997)
42		RemorseView (included game) (DOS, 1997)
42		Splitterwelten (DOS, 1997)
42		3-D Ultra Pinball: The Lost Continent (Windows, 1997)
42		Koach Tzabar (DOS, 1997)
41		Blip (Windows, 1998)
41		Pacman 3D (Windows, 1998)
41		Gridrunner Revolution (Windows, 2009)
41		Grey Cubes (Windows, 2015)
41		Pyramids of Egypt (DOS, 1990)
41		Super Contra (DOS, 1990)
41		Ikari III: The Rescue (DOS, 1990)
41		Toppler (DOS, 1990)
41		Danmaku Unlimited 3 (Windows, 2017)
41		Heroes (DOS, 1998)
41		Wham! (DOS, 1998)
41		Trog (DOS, 1990)
41		Sweater? OK! (Windows, 2016)
41		Island Hopper (DOS, 1998)
41		Arkanoid for Win32 (Windows, 1998)
40		EGA-Roids (DOS, 1986)
40		Blockade (DOS, 1986)
40		Tommy's Packrat (DOS, 1986)
40		Avoid the Awful Thing that Vaguely Resembles a Banana!! (DOS, 1987)
40		MyMan (DOS, 2000)
40		Pac Man (DOS, 1982)
40		I Can't Believe It's Not... Bomberman (DOS, 1999)
40		Gnafu (DOS, 1986)
40		Scribble Ships (Windows, 2017)
40		Flightmare (DOS, 1984)
40		Quantic Pinball (Windows, 2017)
40		Proton (DOS, 1987)
40		Mummies (DOS, 1986)
40		One Hundred and One Monochrome Mazes (DOS, 1983)
40		Encounter (DOS, 1984)
40		Ikari Warriors II: Victory Road (DOS, 1988)
40		Tesla vs Lovecraft (Windows, 2018)
40		Paku Paku (DOS, 2011)
40		Toobin' (DOS, 1989)
40		Ack! Man (DOS, 1989)
40		CD-Man Version 2.0 (DOS, 1989)
40		Pig Eat Ball (Windows, 2018)
40		Tempest 4000 (Windows, 2018)
40		Zombie Serial Killer Incident (Windows, 2018)
40		Helter Skelter (DOS, 1989)
40		Last Duel: Inter Planet War 2012 (DOS, 1989)
40		Demon Stalkers (DOS, 1988)
40		pac32K (DOS, 2004)
40		Ball Blazing Fantasy (DOS, 2003)
40		The Chase on Tom Sawyer's Island (DOS, 1988)
40		Rambo III (DOS, 1989)
40		BananaTron (DOS, 1989)
40		AxTrons (DOS, 1989)
40		Rotating Pong (DOS, 2002)
40		Revolution Ace (Windows, 2014)
40		Sqiek (Windows, 2003)
40		Pure Pinball (Windows, 2003)
40		aReaker Water (Windows, 2003)
40		Winglancer (Windows, 2003)
40		Crystal Caliburn (Windows, 2003)
40		Arkanoid 4000 (Windows, 2003)
40		Thin Ice (Windows, 2010)
40		Blasterball 2: Revolution (Windows, 2002)
40		Heroes (Windows, 2002)
40		Night Stalker (Windows, 2010)
40		Gunless (Windows, 2002)
40		Shoplifter (Windows, 2002)
40		Black Widow (Windows, 2010)
40		Austin Powers Pinball (Windows, 2002)
40		Luxor: 5th Passage (Windows, 2011)
40		A7Xpg (Windows, 2003)
40		Greedy (Windows, 2004)
40		Iggle Pop! (Windows, 2004)
40		Diceies (Windows, 2004)
40		WWI Medic (Windows, 2004)
40		Bricks of Egypt (Windows, 2005)
40		Arena Runner (Windows, 2004)
40		Gearz (Windows, 2004)
40		Magic Ball (Windows, 2004)
40		Frogger's Adventures: The Rescue (Windows, 2003)
40		Equilibria (Windows, 2003)
40		Fox Jones: The Treasures of El Dorado (Windows, 2003)
40		PacShooter 3D (Windows, 2003)
40		Bumper Blaster (Windows, 2004)
40		Wizard of Wor (Windows, 2004)
40		Arkanoid 2000 (Windows, 2002)
40		PacMania II (Windows, 2002)
40		Crystal Hammer (Windows, 2000)
40		MazeRace (Windows, 2000)
40		Think Tank (Windows, 2000)
40		Knockin (Windows, 2000)
40		Suzy Sushi (Windows, 2000)
40		Wrath of the Sea King (Windows, 2000)
40		Brick Blaster (Windows, 1999)
40		Your Basic Block (Windows, 1999)
40		Zap Zilden (Windows, 1999)
40		Oh! Hajiki (Windows, 2002)
40		Agent 2002 (Windows, 2002)
40		Alonix (Windows, 2002)
40		BoaBite3D (Windows, 1999)
40		Ant Attack (Windows, 1999)
40		Krazy Bus (Windows, 2000)
40		Pearl6 (Windows, 2000)
40		X the Hyper Ball (Windows, 2001)
40		BemazeD (Windows, 2001)
40		MoneyMania (Windows, 2002)
40		Bool (Windows, 2002)
40		Hover Bovver (Windows, 2002)
40		Shift 247 (Windows, 2002)
40		Carax '95 (Windows, 2001)
40		Smuc's (Windows, 2001)
40		The Cafka Files (Windows, 2001)
40		Laser Clash (Windows, 2000)
40		Saban's Power Rangers: Time Force (Windows, 2001)
40		SkyMaze (Windows, 2001)
40		Kiss Pinball (Windows, 2001)
40		AxySnake (Windows, 2001)
40		Bad Dreams (Windows, 2004)
40		Minebot Arena (Windows, 2004)
40		Tango Fiesta (Windows, 2015)
40		Pac-Man Revenge 2 (Windows, 2010)
40		Total Fucking Psychopath (Windows, 2011)
40		The Cannon (Windows, 2011)
40		Bomb Buddies (Windows, 2012)
40		Serious Sam: The Greek Encounter (Windows, 2012)
40		Squid and Let Die (Windows, 2010)
40		Bomb Meirin (Windows, 2010)
40		Pandora's Pests (Windows, 2008)
40		Crazy Chicken: Jewel of Darkness (Windows, 2008)
40		Pac-Man Physics (Windows, 2009)
40		White Butterfly (Windows, 2009)
40		Frogs in Love (Windows, 2009)
40		BOH (Windows, 2009)
40		Not Pacman (Windows, 2013)
40		Death Goat (Windows, 2016)
40		Datnoids (DOS, 1982)
40		Fuzzy Worm (DOS, 1982)
40		Bugs! (DOS, 1982)
40		Pac-Man (DOS, 1982)
40		Poke-Man (DOS, 1982)
40		Wallbanger (DOS, 1982)
40		RAMSAK (DOS, 1982)
40		Quiet Riot (Windows, 2015)
40		Platdude In A Bit Of A Do! (Windows, 2014)
40		Magic Vials (Windows, 2014)
40		JNKBombers (Windows, 2014)
40		Crimsonland (Windows, 2014)
40		Cluster (Windows, 2015)
40		Twin Tiger Shark (Windows, 2014)
40		Debugger (Windows, 2008)
40		Sesame Seeds (Windows, 2008)
40		PacMania III (Windows, 2005)
40		Gunroar (Windows, 2005)
40		Iceblox (Windows, 2005)
40		Shroom Eater (Windows, 2005)
40		Dstroy (Windows, 2006)
40		Christmas Crisis (Windows, 2005)
40		PhatPong 05 (Windows, 2005)
40		Across (Windows, 2005)
40		Smack Some Smackers 2 (Windows, 2004)
40		Humphrey (Windows, 2004)
40		Powerdart (Windows, 2004)
40		Blasterball 2: Holidays (Windows, 2004)
40		Battle Rush: Tanks (Windows, 2005)
40		Splash (Windows, 2005)
40		Fole & Raul go bananas (Windows, 2006)
40		Commando Xenidis (Windows, 2006)
40		Sheeplings (Windows, 2007)
40		Guxt (Windows, 2007)
40		Elemental (Windows, 2007)
40		Kobo Deluxe (Windows, 2007)
40		War Twat (Windows, 2008)
40		Fishie Fishie (Windows, 2008)
40		Flyout (Windows, 2007)
40		Ikari III: The Rescue (Windows, 2006)
40		Plasma Pong (Windows, 2006)
40		Obludia (Windows, 2014)
40		Gridfire (Windows, 2006)
40		Ray-Hound (Windows, 2006)
40		Ikari Warriors II: Victory Road (Windows, 2006)
40		Rikki and Mikki to the Rescue! (Windows, 2006)
40		Pac-Gal (DOS, 1982)

Notes: Games similar to Viper, Games like Viper, DOS, Action, Arcade, Top-down, PC, Game Similarities.