After a catastrophic incident cuts an isolated Antarctic research facility off from the outside world, an increasingly desperate fight for survival begins.

As systems fail, communications break down, and hostile creatures roam the facility, pieces of a larger mystery begin to emerge from the chaos left behind.

Explore a vast underground complex, navigate restricted sectors, solve environmental puzzles, search for supplies, and uncover hidden areas as you progress deeper into the unknown.

Combining atmospheric horror with intense first-person combat and logical puzzles, Invariant blends exploration, tense firefights, and resource management into a constant struggle for survival.