The 1971 Project Helios is a strategy game based on the series that combines modern military tactics and close combat.

Ammunition and vehicles are scarce, conflicts and hostilities are endless, and the terrible cold freezes friends and enemies in its path.

The campaign begins in a frozen world, where eight individuals - each with their own problems and interests - participate in a kind of temporary alliance to find a specific person: Dr. Margaret Blythe.

Along the way, they will have to avoid the attacks of raiders, explore military headquarters, and infiltrate the territory of a dangerous anti-technological religious sect.

In pursuit of her whereabouts, they will travel and fight side by side, and inevitably, they will meet others. Depending on certain strategies and personal decisions, you will guide these characters to one of the three possible endings.