Gordon Freeman, one of the research scientists who has been involved in the accident, and who now must escape the facility.Īt the end of the game, a mysterious figure referred to as the G-Man extracts Gordon from Xen, where he defeated the Nihilanth, and 'offers' a job to Gordon. Creatures from Xen flood into Black Mesa via the portal and start killing everyone in sight.

During an experiment, researchers at Black Mesa accidentally cause a Resonance Cascade which rips open a portal to Xen, the only known borderworld. The original Half-Life takes place at the Black Mesa Research Facility in 200. This article describes the Half-Life 2 storyline, chapter by chapter. Gameplay tactics, trivia and walkthrough information should not be included, unless they are related to the plot instead add it to its respective chapter article. This article is not a walkthrough, but a plot summary. Visit our Cleanup Project for more details and, please, notify the administrators before removing this template. You can help by correcting spelling and grammar, removing factual errors, rewriting sections to ensure they are clear and concise, and moving some elements when appropriate. This article has yet to be cleaned up to a higher standard of quality.