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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.
PC (Microsoft Windows) · Sep 14, 2012
Worldwide · Exact date · Beta · IGDB
PC (Microsoft Windows) · May 5, 2015
Worldwide · Exact date · Early access · IGDB
Linux · Oct 28, 2016
Worldwide · Exact date · Early access · IGDB
Linux · Mar 6, 2020
Worldwide · Exact date · Full release · IGDB
PC (Microsoft Windows) · Mar 6, 2020
Worldwide · Exact date · Full release · IGDB
Catalog sources
50 achievements available.
Decline G-Man’s offer of employment.
LockedSteam
Kill a Controller without killing any of its mind-controlled Vortigaunt slaves.
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Assemble all the possible Scientists and Guards at the end of Office Complex.
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Pass the toilet paper to the Scientist in need.
LockedSteam
Perform surgical caffeine extraction from 20 vending machines.
LockedSteam
Kill 10 airborne Headcrabs using the Shotgun.
LockedSteam
Kill 20 Enemies with the Hivehand.
LockedSteam
Use an entire clip of Gluon ammo in one continuous shot.
LockedSteam
Hidden until unlockedSteam
Help the Barnacle and Headcrab find true love.
LockedSteam
Kill an Assassin with the .357 Magnum.
LockedSteam
Escape the Gargantua’s Lair without taking any damage from Gargantuas.
LockedSteam
Kill 10 enemies with a reprogrammed Sentry.
LockedSteam
Deliver the finishing blow to Gonarch with your Crowbar.
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Conduct all of the questionable research experiments.
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Ruin the microwave casserole.
LockedSteam
Hidden until unlockedSteam
Get killed by your own Snarks.
LockedSteam
Get whacked into oblivion in the ledge fight.
LockedSteam
Headshot 20 Enemies with the .357 Magnum.
LockedSteam
Drown in Lambda Core's coolant.
LockedSteam
Kill a Barnacle with a Satchel.
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Kill a Headcrab using fire.
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Kill a Marine with their own Grenade.
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Complete Interloper without taking any laser damage.
LockedSteam
Defeat Nihilanth in under 4 minutes.
LockedSteam
Die in the AMS Beam before starting the experiment.
LockedSteam
Accept G-Man’s offer of employment.
LockedSteam
Kill 10 Enemies with Snarks.
LockedSteam
Kill 5 Enemies with one Grenade.
LockedSteam
Kill an Ichthyosaur with either the Tau or Gluon.
LockedSteam
Kill 10 Enemies with Tripmines.
LockedSteam
Skip the opening Xen island with a secret jump.
LockedSteam
Use the alternate path in Office Complex.
LockedSteam
Don't kill any Vortigaunts in the Borderworld.
LockedSteam
Find each member of the missing research teams.
LockedSteam
Hidden until unlockedSteam
Interfere with the alarm and laptop in Anomalous Materials.
LockedSteam
Kill all Protozoans in the Borderworld.
LockedSteam
Get overtaken by a Headcrab's ample anterior.
LockedSteam
Overcharge it anyway.
LockedSteam
Hidden until unlockedSteam
Send the Hidden Hat to Xen.
LockedSteam
Refuse to insert the specimen into the Anti-Mass Spectrometer.
LockedSteam
Take out all three Healing Crystals in Nihilanth’s Chamber at the same time.
LockedSteam
Escape the Hangar in Surface Tension without alerting the Soldiers.
LockedSteam
Hidden until unlockedSteam
Hidden until unlockedSteam
Cook a Grenade for too long.
LockedSteam
Hidden until unlockedSteam
Community notes
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Main game
