Steam Achievements · completionist.me

Achievement	Unlocked	Global Unlocks
Permeable Infrastructure Use the alternate path in Office Complex.	2021-01-31 09:50:51	24.1%
Rather an Anticlimax Decline G-Man’s offer of employment.	2020-11-15 08:51:57	15.5%
Premature Expulsion Use an entire clip of Gluon ammo in one continuous shot.	2020-11-14 01:51:51	26.3%
Anti-Matter Over Mind Kill a Controller without killing any of its mind-controlled Vortigaunt slaves.	2020-11-08 10:37:20	26.4%
Gonad Glider Get whacked into oblivion in the ledge fight.	2020-10-16 12:24:25	5.6%
Centripetal Attraction Kill 20 Enemies with the Hivehand.	2020-10-01 08:31:37	24.2%
Limitless Potential Accept G-Man’s offer of employment.	2020-05-08 00:02:16	23.7%
Dead Reckoning Kill an Assassin with the .357 Magnum.	2020-05-07 23:59:32	23.3%
Less Than Desirable Consequences Die in the AMS Beam before starting the experiment.	2020-03-17 05:12:12	14.1%
Convection Refinement Ruin the microwave casserole.	2020-03-17 05:01:11	51.2%
Caffeine Extraction Perform surgical caffeine extraction from 20 vending machines.	2020-03-17 04:58:53	22.9%
Brownian Motion Pass the toilet paper to the Scientist in need.	2020-03-17 04:54:24	62.5%
Well-Done Cook a Grenade for too long.	2020-03-17 04:02:18	17.6%
Gray Matter Propulsion Headshot 20 Enemies with the .357 Magnum.	2019-10-27 03:07:39	38.7%
Prophylactic Suggested Get overtaken by a Headcrab's ample anterior.	2019-10-26 07:28:09	34.4%
Laser Immunization Complete Interloper without taking any laser damage.		2.2%
Late for Work Defeat Nihilanth in under 4 minutes.		2.9%
Futile Resistance Kill 10 Enemies with Snarks.		7.2%
Mega Hertz Kill 5 Enemies with one Grenade.		19.0%
Nuclear Fishin' Kill an Ichthyosaur with either the Tau or Gluon.		12.5%
One Step Ahead Kill 10 Enemies with Tripmines.		5.8%
Orbital Trajectory Skip the opening Xen island with a secret jump.		3.6%
PhD in Pacifism Don't kill any Vortigaunts in the Borderworld.		11.1%
Post-Mortem Interval Find each member of the missing research teams.		1.8%
Pepperoni Precipitation View the other secret ending.		1.6%
Proverbial Tinkerer Interfere with the alarm and laptop in Anomalous Materials.		17.0%
Prolific Popper Kill all Protozoans in the Borderworld.		1.7%
Quantum Capacitance Overcharge it anyway.		19.7%
The Rarest Specimen Carry the Hidden Hat to Endgame.		1.8%
Rare Specimen Send the Hidden Hat to Xen.		2.8%
Resonance Procrastinator Refuse to insert the specimen into the Anti-Mass Spectrometer.		9.8%
Specimen GG Take out all three Healing Crystals in Nihilanth’s Chamber at the same time.		2.8%
Stealth Technology Escape the Hangar in Surface Tension without alerting the Soldiers.		10.1%
The Plan Use Cyanogen to kill Gonarch.		2.2%
Unquestionably Ethical Don't use the Cyanogen and let the Gonarch live.		2.1%
xen when Wait too long to jump into the Lambda Teleporter.		3.8%
Our Brains And Your Brawn Assemble all the possible Scientists and Guards at the end of Office Complex.		4.8%
Calculated Trajectory Kill 10 airborne Headcrabs using the Shotgun.		14.0%
Contest Propellant Find the snack supply canister.		10.2%
Unified Coupling Theorum Help the Barnacle and Headcrab find true love.		6.4%
Black Mesa Decathlon Winner Escape the Gargantua’s Lair without taking any damage from Gargantuas.		3.2%
Digital Wizardry Kill 10 enemies with a reprogrammed Sentry.		9.3%
Doctor’s Signature Deliver the finishing blow to Gonarch with your Crowbar.		3.0%
Ethically Questionable Conduct all of the questionable research experiments.		5.6%
Following the Rules Use the welcome mat.		3.6%
Universal Gravitation Get killed by your own Snarks.		11.1%
Hyper Saturation Conundrum Drown in Lambda Core's coolant.		6.3%
Remote Detonation Kill a Barnacle with a Satchel.		11.5%
Inflammatory Actions Kill a Headcrab using fire.		25.6%
Kinetic Repulsion Kill a Marine with their own Grenade.		6.0%