Named Game of the Year by over 50 publications, Valve's début title blends action and adventure with award-winning technology to create a frighteningly realistic world where players must think to survive. Also includes an exciting multiplayer mode that allows you to play against friends and enemies around the world.
Story: Meth-Life takes you to the secret base of Area 51, but it may not be what you expect. The government is conducting many different experiments under ground, including drug creation. You are Gordon Gluesniffer, a security gaurd assigned to the Meth O.D. Labs.
It crashes when I start it up
So is this a mod?