The specimen zero: The Ultimate Shooter Challenge

The moment has arrived to persevere in a hostile and mysterious environment. In the 3D horror game Specimen Zero, sick creatures creep across rooms, trying to murder you until you can find a way to escape. You are terrified, you have no idea where you are, and your last memory is of being abducted. However, an unusual and maybe hazardous event has taken place in that peculiar location. A means of evasion from such establishments must be found by you.