99		Sherlock Holmes: The Devil's Daughter (PlayStation 4, 2016)
99		Dracula: The Last Sanctuary (PlayStation, 2002)
99		Crimes & Punishments: Sherlock Holmes (PlayStation 4, 2014)
99		Crimes & Punishments: Sherlock Holmes (PlayStation 3, 2014)
71		Agatha Christie: The ABC Murders (PlayStation 4, 2016)
70		Broken Sword: The Smoking Mirror (PlayStation, 1999)
66		Sam & Max 302: The Tomb of Sammun-Mak (PlayStation 3, 2010)
65		Red Johnson's Chronicles: One Against All (PlayStation 3, 2012)
64		Nelson Tethers: Puzzle Agent (PlayStation 3, 2011)
64		Sam & Max 301: The Penal Zone (PlayStation 3, 2010)
64		Red Johnson's Chronicles (PlayStation 3, 2011)
64		Mountain Crime: Requital (PlayStation 3, 2013)
64		NCIS (PlayStation 3, 2011)
64		The Vanishing of Ethan Carter (PlayStation 4, 2015)
64		Sam & Max: Season Two (PlayStation 3, 2011)
63		Sam & Max 303: They Stole Max's Brain! (PlayStation 3, 2010)
63		Sam & Max 304: Beyond the Alley of the Dolls (PlayStation 3, 2010)
63		The Raven: Legacy of a Master Thief (PlayStation 3, 2014)
62		Diabolik: The Original Sin (PlayStation 2, 2009)
60		Egypt II: The Heliopolis Prophecy (PlayStation, 2001)
60		Necronomicon: The Dawning of Darkness (PlayStation, 2001)
60		The Messenger (PlayStation, 2000)
60		Ark of Time (PlayStation, 1998)
60		Athena: Awakening from the Ordinary Life (PlayStation, 1999)
60		CSI: Crime Scene Investigation - 3 Dimensions of Murder (PlayStation 2, 2007)
60		Flower Sun and Rain (PlayStation 2, 2001)
60		The Council: Episode 1 - The Mad Ones (PlayStation 4, 2018)
60		Athena: Awakening from the Ordinary Life (PlayStation 3, 2007)
60		Largo Winch: Empire Under Threat (PlayStation 2, 2002)
60		The Invisible Hours (PlayStation 4, 2017)
58		Murdered: Soul Suspect (PlayStation 3, 2014)
58		Murdered: Soul Suspect (PlayStation 4, 2014)
52		Broken Sword 5: The Serpent's Curse (PlayStation 4, 2015)
52		Blue Toad Murder Files: The Mysteries of Little Riddle (PlayStation 3, 2009)
52		White Night (PlayStation 4, 2015)
51		>observer_ (PlayStation 4, 2017)
51		Gone Home (PlayStation 4, 2016)
50		Beyond Atlantis II (PlayStation 2, 2001)
50		Dead Secret (PlayStation 4, 2018)
50		Clock Tower II: The Struggle Within (PlayStation, 1999)
50		Detective Gallo (PlayStation 4, 2018)
50		Knee Deep (PlayStation 4, 2017)
50		Discworld Noir (PlayStation, 1999)
50		Kona (PlayStation 4, 2017)
42		Detroit: Become Human (PlayStation 4, 2018)
41		Broken Sword: The Sleeping Dragon (PlayStation 2, 2003)
40		The Shapeshifting Detective (PlayStation 4, 2018)
40		Dracula: The Resurrection (PlayStation, 2001)
40		Datura (PlayStation 3, 2012)
40		Neptune Flux (PlayStation 4, 2017)

Notes: Games similar to The Testament of Sherlock Holmes, Games like The Testament of Sherlock Holmes, Frogwares Game Development Studio, Focus Home Interactive SAS, PlayStation 3, Adventure, Puzzle elements, Detective, Mystery, 1st-person, 3rd-person, Other, PhysX, Belle Époque, City - London, Sony PlayStation, PSX, PS1, PS2, PS3, PS4, Game Similarities.