99		Hitman: Absolution (Windows, 2012)
99		Hitman 2 (Windows, 2018)
99		Hitman: The Complete First Season (Windows, 2016)
99		Hitman: Blood Money (Windows, 2006)
99		Hitman 2: Silent Assassin (Windows, 2002)
99		Hitman: Codename 47 (Windows, 2000)
78		Tom Clancy's Splinter Cell: Pandora Tomorrow (Windows, 2004)
67		Death to Spies (Windows, 2007)
65		Metal Gear Solid 2: Substance (Windows, 2003)
65		Chameleon (Windows, 2005)
65		Alekhine's Gun (Windows, 2016)
64		Alias Underground Episode 8: Breakout (Windows, 2003)
64		Alias Underground Episode 9: Countdown (Windows, 2003)
64		Alias Underground Episode 6: CIA Mission - Return To SD-6 (Windows, 2003)
64		Alias Underground Episode 7: Phase One (Windows, 2003)
63		Alias Underground Episode 1: SD-6 Agent Training (Windows, 2002)
63		25 to Life (Windows, 2006)
63		Soldier Elite: Zero Hour (Windows, 2006)
63		Alias Underground Episode 4: The Circumference (Windows, 2002)
63		Alias Underground Episode 2: Mission - Turkish Embassy (Windows, 2002)
63		Alias Underground Episode 5: Turkish Embassy - CIA Countermission (Windows, 2002)
63		Alias Underground Episode 3: Mission - Raid On SD-6 (Windows, 2002)
61		Metal Gear Solid V: Ground Zeroes (Windows, 2014)
61		Payday 2 (Windows, 2013)
60		Metal Gear: Survive (Windows, 2018)
60		007: Legends (Windows, 2012)
60		Velvet Assassin (Windows, 2009)
60		Death to Spies: Moment of Truth (Windows, 2009)
57		Tom Clancy's Splinter Cell: Chaos Theory (Windows, 2005)
57		Tom Clancy's Splinter Cell (Windows, 2003)
54		Cold War (Windows, 2005)
54		Batman: Arkham Asylum (Windows, 2009)
52		Tom Clancy's Splinter Cell: Blacklist (Windows, 2013)
51		Hour of Victory (Windows, 2008)
51		Tom Clancy's Splinter Cell: Conviction (Windows, 2010)
50		Past Cure (Windows, 2018)
50		Hello Neighbor: Hide and Seek (Windows, 2018)
50		Thief Simulator (Windows, 2018)
50		Hello Neighbor (Windows, 2017)
46		No One Lives Forever 2: A Spy in H.A.R.M.'s Way (Windows, 2002)
44		The Operative: No One Lives Forever (Windows, 2000)
40		Remember Me (Windows, 2013)
40		République (Windows, 2015)
40		Assassin's Creed: Unity (Windows, 2014)

Notes: Games similar to Hitman: Contracts, Games like Hitman: Contracts, Io-Interactive A, S, Eidos, Inc., Windows, Action, Stealth, Crime, Spy, Espionage, Thriller, 1st-person, Behind view, Glacier, City - Hong Kong, City - Paris, PC, Game Similarities.