Invariant is a survival horror FPS set inside a remote research facility in Antarctica, inspired by games like F.E.A.R., Half-Life, Resident Evil, and John Carpenter's The Thing, created in the spirit of the 90s and 2000s shooters and survival horror games. After a catastrophic incident cuts the station off from the outside world, you must fight to survive against hostile creatures, collapsing systems, and the growing paranoia consuming the