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Đạt được 33 trên 50 (66%) thành tựu:
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Brownian Motion

Pass the toilet paper to the Scientist in need.
Mở khóa vào 23 Thg04, 2024 @ 12:27am

Caffeine Extraction

Perform surgical caffeine extraction from 20 vending machines.
Mở khóa vào 22 Thg10, 2024 @ 12:43am

Calculated Trajectory

Kill 10 airborne Headcrabs using the Shotgun.
Mở khóa vào 21 Thg10, 2024 @ 11:47pm

Centripetal Attraction

Kill 20 Enemies with the Hivehand.
Mở khóa vào 22 Thg10, 2024 @ 2:20am

Convection Refinement

Ruin the microwave casserole.
Mở khóa vào 23 Thg04, 2024 @ 12:26am

Dead Reckoning

Kill an Assassin with the .357 Magnum.
Mở khóa vào 22 Thg10, 2024 @ 2:12am

Digital Wizardry

Kill 10 enemies with a reprogrammed Sentry.
Mở khóa vào 22 Thg10, 2024 @ 4:58am

Ethically Questionable

Conduct all of the questionable research experiments.
Mở khóa vào 21 Thg10, 2024 @ 11:02pm

Futile Resistance

Kill 10 Enemies with Snarks.
Mở khóa vào 21 Thg10, 2024 @ 12:10am

Gray Matter Propulsion

Headshot 20 Enemies with the .357 Magnum.
Mở khóa vào 21 Thg10, 2024 @ 2:40am

Hyper Saturation Conundrum

Drown in Lambda Core's coolant.
Mở khóa vào 22 Thg10, 2024 @ 2:26am

Inflammatory Actions

Kill a Headcrab using fire.
Mở khóa vào 19 Thg10, 2024 @ 12:38pm

Kinetic Repulsion

Kill a Marine with their own Grenade.
Mở khóa vào 22 Thg10, 2024 @ 5:01am

Mega Hertz

Kill 5 Enemies with one Grenade.
Mở khóa vào 21 Thg10, 2024 @ 4:03am

Nuclear Fishin'

Kill an Ichthyosaur with either the Tau or Gluon.
Mở khóa vào 17 Thg10, 2024 @ 11:16pm

Permeable Infrastructure

Use the alternate path in Office Complex.
Mở khóa vào 13 Thg10, 2024 @ 11:13pm

Premature Expulsion

Use an entire clip of Gluon ammo in one continuous shot.
Mở khóa vào 17 Thg10, 2024 @ 10:38pm

Prophylactic Suggested

Get overtaken by a Headcrab's ample anterior.
Mở khóa vào 4 Thg10, 2024 @ 1:54am

Proverbial Tinkerer

Interfere with the alarm and laptop in Anomalous Materials.
Mở khóa vào 13 Thg10, 2024 @ 10:20pm

Quantum Capacitance

Overcharge it anyway.
Mở khóa vào 21 Thg10, 2024 @ 2:46am

Remote Detonation

Kill a Barnacle with a Satchel.
Mở khóa vào 16 Thg10, 2024 @ 11:13pm

Resonance Procrastinator

Refuse to insert the specimen into the Anti-Mass Spectrometer.
Mở khóa vào 13 Thg10, 2024 @ 10:28pm

Unified Coupling Theorum

Help the Barnacle and Headcrab find true love.
Mở khóa vào 22 Thg10, 2024 @ 5:11am

Universal Gravitation

Get killed by your own Snarks.
Mở khóa vào 21 Thg10, 2024 @ 2:51am

One Step Ahead

Kill 10 Enemies with Tripmines​​.
Mở khóa vào 22 Thg10, 2024 @ 4:30am

Our Brains And Your Brawn

Assemble all the possible Scientists and Guards at the end of Office Complex.
Mở khóa vào 22 Thg10, 2024 @ 1:24am

Less Than Desirable Consequences

Die in the AMS Beam before starting the experiment.
Mở khóa vào 21 Thg10, 2024 @ 2:22am

Orbital Trajectory

Skip the opening Xen island with a secret jump.​
Mở khóa vào 21 Thg10, 2024 @ 4:51am

Specimen GG

Take out all three Healing Crystals in Nihilanth’s Chamber at the same time​.
Mở khóa vào 22 Thg10, 2024 @ 12:36am

Late for Work

Defeat Nihilanth in under 4 minutes.​
Mở khóa vào 21 Thg10, 2024 @ 10:34pm

Limitless Potential

Accept G-Man’s offer of employment.
Mở khóa vào 17 Thg10, 2024 @ 10:50pm

Rather an Anticlimax

Decline G-Man’s offer of employment.
Mở khóa vào 17 Thg10, 2024 @ 10:49pm

Well-Done

Cook a Grenade for too long.
Mở khóa vào 16 Thg10, 2024 @ 11:07pm



Rare Specimen

Send the Hidden Hat to Xen.

Prolific Popper

Kill all Protozoans in the Borderworld.

PhD in Pacifism

Don't kill any Vortigaunts in the Borderworld.

Stealth Technology

Escape the Hangar in Surface Tension without alerting the Soldiers.

Doctor’s Signature

Deliver the finishing blow to Gonarch with your Crowbar.

Gonad Glider

Get whacked into oblivion in the ledge fight.

Post-Mortem Interval

Find each member of the missing research teams.

Laser Immunization

Complete Interloper without taking any laser damage.

Black Mesa Decathlon Winner

Escape the Gargantua’s Lair without taking any damage from Gargantuas.

Anti-Matter Over Mind

Kill a Controller without killing any of its mind-controlled Vortigaunt slaves.
+7

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