Half-Life is a first-person shooter developed by Valve Corporation and released by Sierra on November 19, 1998 for Microsoft Windows. Half-Life follows the adventures of Gordon Freeman, a researcher at the Black Mesa Research Facility, a gigantic, top-secret scientific complex housed in a disused military base totally buried beneath the surface. While participating in an experiment on a mysterious sample, Freeman involuntarily opens an interdimensional gap to a parallel world, Xen, populated by alien creatures. Aliens of various species and races burst across the center and savagely attack his staff. The test room is partially destroyed but Freeman, equipped with a “Hazard Suit” (HEV), manages to escape unscathed. The center of Black Mesa is littered with corpses and the invading creatures chase the survivors. Gordon, supported by colleagues and security guards at the center, faces them in the hopes of surviving and being able to return to the surface for help. During these events, Gordon will discover that the US government is trying to stifle the case by sending a commando unit to kill the survivors.
Half-Life is no longer abandonware. You can now buy the game from:
Additional files, patches and fixes