688(I) Hunter/Killer, the most realistic submarine simulation ever developed for PC. Master the sonar and weapons control systems, learn to develop real target situations and outfit your boat with the latest advanced weaponry. Then use your skills to complete the tour of duty and earn your dolphins to become a true submariner.
Over 12 detailed operating stations: Control all aspects of submarine warfare, including the sonar suite, fire control, helm and target motion analysis
Multiplayer Warfare: Seek and Destroy up to 8 players over the internet or LAN
Real-life situations: Conduct detailed training and single missions, plus a full campaign based on political analysis from real world situations
Full 3D Technology: Full 3D technology allows for multiple camera views and accurate 3D models of over 20 different naval weapons platforms
windows Minimum
OS: Windows 2000/XP/7
Processor: Pentium III
Memory: 256MB RAM
Graphics: 32MB video card (Nvidia Geforce or ATI Radeon)
Storage: 1.5G Hard drive space
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
2026-09-28
Are We Entering the Age of Gaming Leak Culture?
Once upon a time, a video game leak seemed nearly as an almost innocent accident, a gaming magazine published a screenshot too early or a store put a copy on a shelf before the scheduled release date…
As you probably already know, at YUPLAY we constantly strive to discover new and exciting ways to regularly promote the best video game titles directly to you. We do that quite often with our storewide discount campaigns, but we were looking for another way to do it without the need for a whole promotional event…
