Steam Achievements · completionist.me

Achievement	Unlocked	Global Unlocks
Rare Specimen Send the Hidden Hat to Xen.	2019-08-27 12:26:52	2.8%
Hyper Saturation Conundrum Drown in Lambda Core's coolant.	2019-08-27 10:31:58	6.3%
Premature Expulsion Use an entire clip of Gluon ammo in one continuous shot.	2019-08-27 10:07:38	26.3%
Dead Reckoning Kill an Assassin with the .357 Magnum.	2019-08-27 09:47:57	23.3%
Nuclear Fishin' Kill an Ichthyosaur with either the Tau or Gluon.	2019-08-27 08:32:44	12.5%
Centripetal Attraction Kill 20 Enemies with the Hivehand.	2019-08-26 23:54:22	24.2%
Ethically Questionable Conduct all of the questionable research experiments.	2019-08-26 11:55:43	5.6%
Quantum Capacitance Overcharge it anyway.	2019-08-26 11:52:08	19.7%
Futile Resistance Kill 10 Enemies with Snarks.	2019-08-26 11:43:15	7.2%
Universal Gravitation Get killed by your own Snarks.	2019-08-26 11:41:30	11.1%
Remote Detonation Kill a Barnacle with a Satchel.	2019-08-18 23:18:03	11.5%
Calculated Trajectory Kill 10 airborne Headcrabs using the Shotgun.	2019-08-17 23:17:37	14.0%
Kinetic Repulsion Kill a Marine with their own Grenade.	2019-08-17 23:05:05	6.0%
Gray Matter Propulsion Headshot 20 Enemies with the .357 Magnum.	2019-08-17 22:56:00	38.7%
Mega Hertz Kill 5 Enemies with one Grenade.	2019-08-17 22:40:19	19.0%
Digital Wizardry Kill 10 enemies with a reprogrammed Sentry.	2019-08-17 22:02:31	9.3%
Permeable Infrastructure Use the alternate path in Office Complex.	2019-08-16 21:46:59	24.1%
Inflammatory Actions Kill a Headcrab using fire.	2019-08-16 21:20:12	25.6%
Unified Coupling Theorum Help the Barnacle and Headcrab find true love.	2019-08-16 13:15:40	6.4%
Prophylactic Suggested Get overtaken by a Headcrab's ample anterior.	2019-08-16 13:09:08	34.4%
Caffeine Extraction Perform surgical caffeine extraction from 20 vending machines.	2019-08-16 11:54:11	22.9%
Resonance Procrastinator Refuse to insert the specimen into the Anti-Mass Spectrometer.	2019-08-16 11:38:30	9.8%
Proverbial Tinkerer Interfere with the alarm and laptop in Anomalous Materials.	2019-08-16 11:18:23	17.0%
Convection Refinement Ruin the microwave casserole.	2019-08-16 11:10:37	51.2%
Brownian Motion Pass the toilet paper to the Scientist in need.	2019-08-16 11:08:36	62.5%
Late for Work Defeat Nihilanth in under 4 minutes.		2.9%
Less Than Desirable Consequences Die in the AMS Beam before starting the experiment.		14.1%
Limitless Potential Accept G-Man’s offer of employment.		23.7%
Following the Rules Use the welcome mat.		3.6%
Doctor’s Signature Deliver the finishing blow to Gonarch with your Crowbar.		3.0%
One Step Ahead Kill 10 Enemies with Tripmines.		5.8%
Orbital Trajectory Skip the opening Xen island with a secret jump.		3.5%
Black Mesa Decathlon Winner Escape the Gargantua’s Lair without taking any damage from Gargantuas.		3.2%
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%
Rather an Anticlimax Decline G-Man’s offer of employment.		15.5%
Prolific Popper Kill all Protozoans in the Borderworld.		1.7%
Contest Propellant Find the snack supply canister.		10.2%
The Rarest Specimen Carry the Hidden Hat to Endgame.		1.8%
Our Brains And Your Brawn Assemble all the possible Scientists and Guards at the end of Office Complex.		4.8%
Anti-Matter Over Mind Kill a Controller without killing any of its mind-controlled Vortigaunt slaves.		26.4%
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%
Well-Done Cook a Grenade for too long.		17.6%
Gonad Glider Get whacked into oblivion in the ledge fight.		5.5%
xen when Wait too long to jump into the Lambda Teleporter.		3.8%
Laser Immunization Complete Interloper without taking any laser damage.		2.2%