65		Zen of Sudoku (Windows, 2006)
64		Ultimate Games: 25,000 Sudoku (Windows, 2006)
64		Su Doku Classic 2 (Windows, 2006)
63		EIPC Free SuDoKu 3 (Windows, 2007)
55		Sudoku: Addict Deluxe (Windows, 2005)
55		Puzzler Sudoku: Volume 1 (Windows, 2005)
45		Inertia (Windows, 2005)
45		Map (Windows, 2005)
45		Untangle (Windows, 2005)
45		GEOM (Windows, 2005)
45		Lights (Windows, 2005)
45		Mines (Windows, 2005)
44		Ka Kuro Master (Windows, 2006)
44		Masyu (Windows, 2006)
44		Deflektor X4 (Windows, 2006)
44		Kakuro XXL (Windows, 2006)
44		Buku Kakuro (Windows, 2006)
44		3 Balls (Windows, 2006)
44		The Misadventures of Sir Randolph Doogleberry, British Explorer (Windows, 2004)
44		Kakuro (Windows, 2006)
44		Kakuro 60.000 (Windows, 2006)
44		Fiber Tree (Windows, 2004)
44		CubeDrift (Windows, 2006)
44		Tiny Worlds (Windows, 2006)
44		Magic Pearls (Windows, 2006)
44		Tangle Bee (Windows, 2006)
43		Reckon (Windows, 2003)
43		eMazing Mazes (Windows, 2003)
43		Lightspeed (Windows, 2003)
43		RotaPicture (Windows, 2003)
43		Manic Minefields (Windows, 2003)
43		Spintensity (Windows, 2003)
43		Engare (Windows, 2017)
43		Electronica (Windows, 2003)
43		SpaceChem (Windows, 2011)
43		Shellblast (Windows, 2007)
43		QuadroX-2 (Windows, 2003)
43		Gasparilla: Quest for the Key (Windows, 2007)
43		Pathstorm (Windows, 2007)
43		WiseBall (Windows, 2007)
43		Gemsweeper (Windows, 2007)
43		Sokoban (DOS, 2007)
43		Quell (Windows, 2015)
43		Q-lympics IQ-marathon (Windows, 2003)
43		Elven Mists (Windows, 2007)
43		Funny Creatures (Windows, 2003)
42		Critical Seeker (Windows, 2002)
42		Molefest (Windows, 2002)
42		LineWay (Windows, 2017)
42		Archibald's Ice Cubes (Windows, 2002)
42		2002 Pentamino Puzzles (Windows, 2008)
42		Strata (Windows, 2013)
42		Block Manouveres (Windows, 2002)
42		Abysma (Windows, 2002)
42		Sigils of Elohim (Windows, 2014)
42		Red Spheres (Windows, 2008)
42		Animals of Africa (Windows, 2002)
42		Chromatron (Windows, 2002)
42		Molefest (DOS, 2002)
42		Slyder (Windows, 2002)
41		BoxWorld (Windows, 2009)
41		Baroll (Windows, 2001)
41		World Riddles: Animals (Windows, 2009)
41		Ziro (Windows, 2009)
41		Baroll (DOS, 2001)
41		Soko-Ban (DOS, 1987)
41		BoxWorld 2 (Windows, 2009)
41		Amazing Kye (Windows, 2001)
40		Hero's Heart (DOS, 1992)
40		Bolo Adventures I (DOS, 1992)
40		Alpha Man (DOS, 1992)
40		Oik: Memory (Windows, 2017)
40		Minesweep (Windows, 2018)
40		Orbox C (Windows, 2016)
40		Oxyd (DOS, 1992)
40		The Brainies (DOS, 1992)
40		Revelation (DOS, 1992)
40		The Quest of Kwirk's Castle (DOS, 1991)
40		Krymini (DOS, 1991)
40		The Power (DOS, 1991)
40		Zig Zag Flag Shag (DOS, 1991)
40		Invisibox (Windows, 2017)
40		Gear Works (DOS, 1993)
40		Bolo Adventures II (DOS, 1991)
40		Balloon Challenge (DOS, 1993)
40		Lasermania (DOS, 1996)
40		Shiftrix (DOS, 1991)
40		Summer: Jigsaw Puzzles (Windows, 2018)
40		Elements (DOS, 1994)
40		Laser Light (DOS, 1994)
40		16 (DOS, 1996)
40		Mouse in Lab (Windows, 2017)
40		Covering (DOS, 1992)
40		Weebee Worlds (DOS, 1994)
40		Arcy 2 (DOS, 1994)
40		15 x 15 (DOS, 1996)
40		3x Logic Games (DOS, 1993)
40		Facetrex (DOS, 1995)
40		Demineur (DOS, 1995)
40		Algorithm (Windows, 2017)
40		VW Sharan: Pack 'n Puzzle (DOS, 1995)
40		Madragon (DOS, 1995)
40		DOSMINE (DOS, 1993)
40		Black Box (DOS, 1982)
40		Four Orbs (Windows, 2000)
40		Hero Defiant (Windows, 1998)
40		Landmine (Windows, 1995)
40		Ultimine (Windows, 2000)
40		PuzzPower (Windows, 2000)
40		Neutron Trails (Windows, 2000)
40		Pandora's Box (Windows, 1999)
40		Coconuts (Windows, 1999)
40		Bulldozer II (Windows, 2000)
40		StarFire (Windows, 1999)
40		Bulldozer (Windows, 2000)
40		Visual Sokoban (Windows, 1999)
40		New Beetle Tracks and Gaps (Windows, 1997)
40		Kakuro Guru (Windows, 2010)
40		Farocar (Windows, 1997)
40		PocoMan! (Windows, 1996)
40		Under Pressure (Windows, 1995)
40		Minesweeper (Windows, 1995)
40		Cheat Mine (Windows, 1996)
40		ClockWerx (Windows, 1995)
40		Rainbow Hero (Windows, 2015)
40		Maze (DOS, 1983)
40		El Grinch (DOS, 1983)
40		Switch (DOS, 1982)
40		PolyMaze (DOS, 1983)
40		Labyrinth (DOS, 1986)
40		Quadrel (DOS, 1990)
40		Argh (DOS, 1989)
40		Triskelion (DOS, 1987)
40		JezzBall Classic (Windows, 2016)
40		LOOP (Windows, 2015)
40		PixlCross (Windows, 2015)
40		Quell: Reflect (Windows, 2015)
40		Quell: Memento (Windows, 2015)
40		Akin (Windows, 2016)
40		Joining Hands 2 (Windows, 2013)
40		Wave Mechanics (Windows, 2015)
40		Simple Sokoban (Windows, 2014)
40		Quell: Zen (Windows, 2016)
40		Numbers & Logic I (DOS, 1991)

Notes: Games similar to The Sudoku Challenge!, Games like The Sudoku Challenge!, Empire Interactive Europe Ltd., Windows, Puzzle, Top-down, Fixed, Flip-screen, PC, Game Similarities.