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.
Extract the Zip to Half-Life folder. Run Half-Life and Choose the "custom game" in the main menu. Choose "Portrait of Freeman". Click activate and it's ready to play and be returned to the menu. Select "New game". Require HL v188.8.131.52