Half-Life

Half-Life is a first-person shooter (FPS) game and the first game in the Half-Life series. The player assumes the role of Gordon Freeman, a theoretical physicist who must escape from the Black Mesa Research Facility after it is overrun by aliens following a disastrous scientific experiment. Its gameplay consists of diverse combat, exploration and puzzles. The game begins with Gordon on his way to work at Black Mesa, and an experiment goes wrong. A resonance cascade opens a portal to another world and alien creatures pour in. The story is told from Gordon's point of view, without cutscenes that take control away from the player. He fights alien creatures and, later, soldiers sent to contain the incident. He uses a crowbar and a range of guns, and wears a hazard suit that provides armor. Puzzles and platforming sections appear between fights, and the later part of the game takes place in the alien world of Xen. The game also includes a multiplayer mode for playing against others online.