Traz Felding is a freelance detective down on his luck ever since he quit the International Biohazard Research and Combat Organization (IBRCO), on issue of shady deals between them and Ico, Inc and the death of his partner.

Accepting a job from Ico to find some evidence, Traz arrives on Mainland Island. However, he is beaten and thrown into a cell. Days later, he manages to escape. However, there seems to be no human life left, but something's definitely moving outside...

Survival has two difficulty levels, a unique gun system, and hidden goodies.