After the disaster in the Chernobyl nuclear plant, a secret research facility - the S.W.A.N. Institute gets out of control. Already dangerous phenomena became an even bigger threat and the corridors of this facility, forgotten by its own government, have seen incidents out of touch with reality.

S.W.A.N. (Syndrome Without A Name) is a science fiction FPS puzzle horror game, which takes place a few months after the Chernobyl Nuclear Plant disaster. It is a tale of an unexplored area within the Chernobyl Exclusion Zone - The S.W.A.N. Institute.