69		Raw Data (PlayStation 4, 2017)
67		Wolfenstein II: The New Colossus (PlayStation 4, 2017)
65		Dishonored 2 (PlayStation 4, 2016)
65		Immortal Redneck (PlayStation 4, 2018)
65		Dishonored: Death of the Outsider (PlayStation 4, 2017)
65		Dark Legion (PlayStation 4, 2018)
64		Strafe (PlayStation 4, 2017)
64		Megaton Rainfall (PlayStation 4, 2017)
64		Paladins: Champions of the Realm (PlayStation 4, 2017)
63		Pixel Gear (PlayStation 4, 2016)
63		Ziggurat (PlayStation 4, 2015)
63		World War Toons (PlayStation 4, 2016)
63		Valley (PlayStation 4, 2016)
63		Warhammer: The End Times - Vermintide (PlayStation 4, 2016)
63		Orc Slayer (PlayStation 4, 2016)
63		Wolfenstein: The Old Blood (PlayStation 4, 2015)
60		Return to Castle Wolfenstein: Operation Resurrection (PlayStation 2, 2003)
60		Cocoto: Funfair (PlayStation 2, 2006)
60		Harry Potter and the Deathly Hallows: Part 1 (PlayStation 3, 2010)
60		Hexen: Beyond Heretic (PlayStation, 1997)
60		SpongeBob's Atlantis SquarePantis (PlayStation 2, 2007)
54		Zombeer (PlayStation 4, 2017)
54		Shadow Warrior 2 (PlayStation 4, 2017)
51		Wolfenstein: The New Order (PlayStation 3, 2014)
51		Wolfenstein: The New Order (PlayStation 4, 2014)
51		Shadow Warrior (PlayStation 4, 2014)
51		Zombeer (PlayStation 3, 2014)
50		Deadstorm Pirates (PlayStation 3, 2010)
41		Mothergunship (PlayStation 4, 2018)
41		The Persistence (PlayStation 4, 2018)
40		PlayerUnknown's Battlegrounds (PlayStation 4, 2018)
40		Earthfall (PlayStation 4, 2018)
40		Savage Skies (PlayStation 2, 2002)
40		Killing Floor: Incursion (PlayStation 4, 2018)
40		LawBreakers (PlayStation 4, 2017)

Notes: Games similar to Syren, Games like Syren, Hammerhead Interactive Limited, Hammerhead Interactive Limited, PlayStation 4, Action, Fantasy, Shooter, Survival Horror, 1st-person, UnrealEngine4, Sony PlayStation, PSX, PS1, PS2, PS3, PS4, Game Similarities.