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Steam Reviews
Overwhelmingly Positive95% of 130,546 reviews are positivePlaytime
Updated community averages based on player submissions.
Main Story
14h 57m
Main + Extra
17h 53m
Completionist
22h 22m
Links
About This Game
Black Mesa is a re-envisioning of Valve Software's classic science fiction first person shooter, Half-Life. Powered by Source Engine, You will re-visit the inaugural role of Gordon Freeman and his memorable journey through the Black Mesa Research Facility. Expect detailed environments to explore, a huge cast of characters and experimental weaponry. All-new music, voice acting, choreography and added dialogue give way to a more expansive and immersive experience than ever before.
Media
3 videos + 7 screenshotsLast updated Mar 7, 2026