X-COM: Terror From the Deep

Turn-based squad tactics against aliens beneath Earth's oceans

MicroProse Software, Inc · Published by 2K · Released May 4, 2007

Reviews: Very Positive; 91% of 943
Recent reviews: Not enough recent
Playing now: 13; right now
Steam Deck: Unsupported
Last update: Unknown; no patch notes found

What is X-COM: Terror From the Deep?

An isometric, turn-based strategy game set beneath Earth's oceans, where dormant alien sea creatures awaken to attack. You command a squad in battles across multilevel maps of underwater terrain and buildings, using undersea weapons against the aliens.

For you if...

+you enjoy methodical, difficult turn-based squad battles
+you like dark underwater settings and alien threats

Not for you if...

−you prefer quick missions over sprawling tactical maps
−you want a gentle introduction to strategy games

What players say

91% of 943 reviews are positive

Players praise the underwater atmosphere, soundtrack, and tactical challenge. Some find the steep difficulty and large maps tedious. Others warn of progress-blocking bugs and recommend community fixes.

Screenshots and trailer

X-COM: Terror From the Deep system requirements

As published by the developer.

Minimum

Windows XP*, 33MHz 386, 4MB RAM, 520KB Free Disk Space, DirectX 6.1 or later. You must have a mouse attached to the computer. (We mean the input device; please do not glue or staple helpless little animals to the keyboard.) The mouse driver must be Microsoft mouse version 8.01 or higher or something fully compatible with this.