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.
In the dark depths of vast oceans, long sleeping forces are awakened by reanimation signals sent out across the galactic silence by their interstellar brothers and sisters. Slowly but surely, an army of hibernating alien sea creatures awakens. Your combat now extends to the strange new worlds of the deep where superior alien technologies threaten the very survival of this planet - your planet - Earth.
Sequel to the hugely successful X-COM: UFO Defense
Actual undersea geoscape mapping system with rich topographic detail
Full array of undersea military technology
Rich graphics feature water coloration and wrecks
Multilevel tactical maps featuring both underseascapes and buildings
Alien encyclopedia features mutation technology and new watery denizens
windows Minimum
OS: Windows XP
Memory: 4MB RAM
Directx: DirectX 6.1 or later
To activate the game, you need a Steam Account
Login or register at the official Steam Website and download Steam client
Install and start application, login with your Account name and Password
Click the Games Menu.
Choose Activate a Product on Steam...
Follow the onscreen instructions to complete the process
After the successful code verification, go to the "MY GAMES" tab and start downloading.
News & Updates
2026-03-16
Celebrate the Spring by Draining Yuplay’s Profit
Spring time always comes with a sense of freshness and revitalization, so we decided to take a risk make a special storewide promotion that would absolutely kill our profit (and probably get our boss angry). All you have to do to participate is make an order of at least 20€ between 17.03.2026 15:00 CET and 23.03.2026 15:00 CET, and you will get a FREE game coming straight out of our pockets…
Even though Friday the 13th is widely considered as an unlucky date, we at YUPLAY are trying to flip the script for that and turn it into a lucky day for you and this time is not an exception to the rule! We are delighted to announce our FRIDAY 13TH promo and you should absolutely read on the article in order to find out how to best take advantage of this campaign and turn your luck in the right direction for the occasion…
