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.
"Scary Map" The map is for Half-Life Single Player. This map begins, then you there unknown at, from where will have escape. Unzip to: C:\Program Files\Steam\SteamApps\common\Half-Life\