
How to activate
- Install Steam and sign in to your account (a free account is enough).
- In the top menu choose Games → Activate a Product on Steam…
- Enter your key exactly as shown in your order (with dashes) and confirm. The game appears in your library.
About
The war continues... X-COM: UFO Defense brought you to a galactic battlefield. X-COM: Terror from the Deep brings the alien terror into a totally new dimension.
Seeking to take advantage of a weakened Earth, X-COM's deep space foes unexpectedly change strategy and launch a powerful second front against planet Earth. ...
System Requirements
Minimum
- OS
- Windows XP
- Processor
- 33MHz 386
- Memory
- 4MB RAM
- Storage
- 520KB Free Disk Space
- DirectX® Version
- DirectX 6.1 or later.
Recommended
Legal information
Use of this product requires agreement to the following third party end user license agreement: http://www.take2games.com/eula/














