81		X-COM: UFO Defense (PlayStation, 1995)
74		Tora! Tora! Tora! (PlayStation, 1997)
70		Battle Worlds: Kronos (PlayStation 4, 2016)
65		Harukaze Sentai V-Force (PlayStation, 1996)
50		Dai-2-ji Super Robot Taisen α (PlayStation 2, 2003)
48		XCOM 2 (PlayStation 4, 2016)
48		XCOM: Enemy Unknown (PlayStation 3, 2012)
46		Command & Conquer (PlayStation, 1997)
46		Command & Conquer: Red Alert (PlayStation, 1997)
45		Space Hulk (PlayStation 4, 2016)
45		Space Hulk (PlayStation 3, 2015)
44		Command & Conquer: Red Alert - Retaliation (PlayStation, 1998)
43		Warzone 2100 (PlayStation, 1999)
43		KKND2: Krossfire (PlayStation, 1999)
42		Dune 2000 (PlayStation, 1999)
40		Space Hulk: Tactics (PlayStation 4, 2018)
40		Space Hulk: Ascension (PlayStation 4, 2016)
40		Warhammer 40,000: Deathwatch (PlayStation 4, 2017)
40		Command & Conquer: Red Alert (PlayStation 3, 2009)
40		Romance of the Three Kingdoms VII (PlayStation, 2001)
40		Romance of the Three Kingdoms VII (PlayStation 2, 2002)
40		Command & Conquer (PlayStation 3, 2009)
40		Command & Conquer: Red Alert 3 - Commander's Challenge (PlayStation 3, 2009)
40		Command & Conquer: Red Alert - Retaliation (PlayStation 3, 2009)

Notes: Games similar to X-COM: Terror from the Deep, Games like X-COM: Terror from the Deep, MicroProse Ltd., MicroProse Ltd., PlayStation, Strategy, Tactics, Sci-Fi, Futuristic, War, Turn-based, Bird's-eye view, Isometric, Aquatic, Underwater, Submarine, Sony PlayStation, PSX, PS1, PS2, PS3, PS4, Game Similarities.