X-COM: Terror from the Deep

X-COM: Terror from the Deep is the first sequel to X-COM: UFO Defense.

While Mythos Games decided to work on a larger-scope sequel, Microprose decided to work on a short-term successor. In many ways Terror from the Deep is a reskinned UFO Defense, but with new mechanics and additions as well as a new story.

Prototype Info

Unused Graphics#

An unused launcher weapon and its ammo. The true purpose of this weapon is unknown as no code remains for it.

Unused Items#

There is an alternate Gauss ammunition for crafts at offset 0xD2. In the final game, all Gauss weapons use the same ammunition, whether they are tanks, crafts, or personal weapons. If the game is modified, it is possible to unlock this alternate ammunition.

It has a production cost of $10,000 and a selling price of $53,000, making it essentially an exploit to craft and sell it.

Unused Weapons#

There is an unused weapon with offset 38 / 0x26. This weapon deals 140 shock damage, and is a leftover from Enemy Unknown as it matches the weapon used by the Celatid.

Unused Ranks#

If you hack an alien to join your side, you will notice they have peculiar ranks. The effect of these ranks is currently unknown.

• "Units in Target Entrance" is used primarily by alien soldiers.
• "Units in Target Exit" is used primarily by terror units.

The name of the rank is drawn from other strings and thus the name itself is irrelevant.