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X-COM: Terror from the Deep is the follow-up to the resource management and tactical combat game X-COM: Enemy Unknown.

It has been 40 years since X-COM last defeated the aliens. Now, in the year of 2040, aliens begin to appear on the Earth again. This time the threat to humanity is coming from the depths of oceans.

The game is almost identical to the original X-COM game. The user interface, weapons, and aliens are all the same. The only difference is the adaptation of the aliens and weapons (e.g. new hand-to-hand weapons) to the ocean environment. The game features both undersea and on-land missions, and is significantly harder than its predecessor.


X-COM: Terror from the Deep DOS Barracuda, your primary intercept and combat craft
X-COM: Terror from the Deep DOS Ready to enter the alien sub
X-COM: Terror from the Deep DOS Debriefing
X-COM: Terror from the Deep DOS A notification of alien activity, it is up to you if you respond to it or not.

Promo Images

X-COM: Terror from the Deep Screenshot
X-COM: Terror from the Deep Screenshot
X-COM: Terror from the Deep Screenshot
X-COM: Terror from the Deep Screenshot

Alternate Titles

  • "幽浮2:深海出擊" -- Traditional Chinese spelling
  • "X-COM 2" -- Informal name
  • "UFO 2" -- Informal name
  • "TFTD" -- Informal name

Part of the Following Groups

User Reviews

This is the best game I've ever played. igor balotsky (5) unrated
As good as prequel, but... different The Doom (3) 4.4 Stars4.4 Stars4.4 Stars4.4 Stars4.4 Stars
Essentially X-Com: Harder, With Water Rick Jones (111) 3.8 Stars3.8 Stars3.8 Stars3.8 Stars3.8 Stars
Good game, but bettered by its predecessor Steve Hall (352) unrated
Hey, I for one thought it was a good addition to the series! Gene Davison (805) 4.4 Stars4.4 Stars4.4 Stars4.4 Stars4.4 Stars
Im sick and tired of people not liking this great game Chad Henshaw (32) unrated
Improves on X-Com : UFO Defense in every way. Except you can't beat it. Longwalker (768) 4.4 Stars4.4 Stars4.4 Stars4.4 Stars4.4 Stars
My initial impression was borne out by later reviews... Kasey Chang (4612) unrated
Still X-COM: UFO (Unidentified Floating Objects) Defense Narf! (138) unrated
Worse than its prdecessor. Tomer Gabel (4643) 3.4 Stars3.4 Stars3.4 Stars3.4 Stars3.4 Stars

Critic Reviews

Coming Soon Magazine Apr, 1995 95 out of 100 95
Pelit Jun, 1995 93 out of 100 93
Secret Service / New S Service Jun, 1995 370 out of 400 92
Score Apr, 1995 91 out of 100 91
Power Play Apr, 1995 91 out of 100 91
PC Games (Germany) Apr, 1995 87 out of 100 87
MikroBitti May, 1995 85 out of 100 85
GameSpot May 01, 1996 7.2 out of 10 72
PC Joker Apr, 1995 70 out of 100 70
Power Unlimited Jul, 1995 7 out of 10 70


Topic # Posts Last Post
Steam powered!? 6 xroox (3959)
Aug 17, 2007



The research tree in this game had a few bugs which prevent you from researching certain items, one of them can even stop you from successfully completing the game. Luckily there are guides that contain ways to avoid these bugs.


After completing UFO MicroProse wanted to do a quick follow up within six months. We said that this was not feasible, and if it were possible it would be little more than the same game with different graphics. Instead we started work on X-Com:Apocalypse, which was much more ambitious. Once UFO/X-Com was clearly known to be a success, MicroProse suggested that we license the code for them to develop their own sequel. The rest is history.

-- taken from the Mythos Games web site.


X-COM: Terror from the Deep is heavily based on the writings of Howard Phillips Lovecraft. Many names and creatures are taken straight from HPL. Also, T'leth is R'lyeh, and in the final mission, you can see the tomb and the portrait of the Great Cthulhu himself.


  • Power Play
    • Issue 02/1996 – Best Strategy Game in 1995
Information also contributed by Jaromir Krol and Spearhead51

Related Web Sites

IJan (1990) added X-COM: Terror from the Deep (DOS) on Dec 06, 1999
Other platforms contributed by Trixter (9110) and Xoleras (66541)