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.
Description
Your laboratory is being attacked by the military, your task is to save everyone
Preview
Post a comment
Profile
Icon
Developer
ValvePublisher
Sierra EntertainmentEngine
GoldSrcContact
Send MessageRelease date
Game watch
Follow
Purchase
Related Games
Half-Life
First Person Shooter
Related Engines
GoldSrc
Commercial
Related Groups
Sierra Entertainment
Developer & Publisher
Valve
Developer & Publisher
Tags
not one mods