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Đạt được 19 trên 50 (38%) thành tựu:
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Brownian Motion

Pass the toilet paper to the Scientist in need.
Mở khóa vào 7 Thg07, 2017 @ 8:24am

Caffeine Extraction

Perform surgical caffeine extraction from 20 vending machines.
Mở khóa vào 8 Thg07, 2017 @ 11:21am

Centripetal Attraction

Kill 20 Enemies with the Hivehand.
Mở khóa vào 18 Thg03, 2019 @ 4:57pm

Convection Refinement

Ruin the microwave casserole.
Mở khóa vào 7 Thg07, 2017 @ 8:23am

Dead Reckoning

Kill an Assassin with the .357 Magnum.
Mở khóa vào 18 Thg03, 2019 @ 3:52pm

Gray Matter Propulsion

Headshot 20 Enemies with the .357 Magnum.
Mở khóa vào 8 Thg07, 2017 @ 11:44am

Mega Hertz

Kill 5 Enemies with one Grenade.
Mở khóa vào 11 Thg06, 2020 @ 9:07pm

Premature Expulsion

Use an entire clip of Gluon ammo in one continuous shot.
Mở khóa vào 18 Thg04, 2021 @ 7:29pm

Prophylactic Suggested

Get overtaken by a Headcrab's ample anterior.
Mở khóa vào 15 Thg09, 2017 @ 8:52pm

Proverbial Tinkerer

Interfere with the alarm and laptop in Anomalous Materials.
Mở khóa vào 7 Thg07, 2017 @ 8:22am

Quantum Capacitance

Overcharge it anyway.
Mở khóa vào 19 Thg09, 2017 @ 8:28pm

Remote Detonation

Kill a Barnacle with a Satchel.
Mở khóa vào 11 Thg06, 2020 @ 8:47pm

PhD in Pacifism

Don't kill any Vortigaunts in the Borderworld.
Mở khóa vào 18 Thg04, 2021 @ 7:20pm

Contest Propellant

Find the snack supply canister.
Mở khóa vào 16 Thg04, 2021 @ 10:04pm

Black Mesa Decathlon Winner

Escape the Gargantua’s Lair without taking any damage from Gargantuas.
Mở khóa vào 18 Thg04, 2021 @ 5:21pm

Anti-Matter Over Mind

Kill a Controller without killing any of its mind-controlled Vortigaunt slaves.
Mở khóa vào 22 Thg06, 2020 @ 9:44pm

Limitless Potential

Accept G-Man’s offer of employment.
Mở khóa vào 31 Thg07, 2021 @ 7:01pm

Rather an Anticlimax

Decline G-Man’s offer of employment.
Mở khóa vào 31 Thg07, 2021 @ 7:06pm

Well-Done

Cook a Grenade for too long.
Mở khóa vào 11 Thg06, 2020 @ 8:10pm



Calculated Trajectory

Kill 10 airborne Headcrabs using the Shotgun.

Digital Wizardry

Kill 10 enemies with a reprogrammed Sentry.

Ethically Questionable

Conduct all of the questionable research experiments.

Futile Resistance

Kill 10 Enemies with Snarks.

Hyper Saturation Conundrum

Drown in Lambda Core's coolant.

Inflammatory Actions

Kill a Headcrab using fire.

Kinetic Repulsion

Kill a Marine with their own Grenade.

Nuclear Fishin'

Kill an Ichthyosaur with either the Tau or Gluon.

Permeable Infrastructure

Use the alternate path in Office Complex.

Rare Specimen

Send the Hidden Hat to Xen.

Resonance Procrastinator

Refuse to insert the specimen into the Anti-Mass Spectrometer.

Unified Coupling Theorum

Help the Barnacle and Headcrab find true love.

Universal Gravitation

Get killed by your own Snarks.

Prolific Popper

Kill all Protozoans in the Borderworld.

One Step Ahead

Kill 10 Enemies with Tripmines​​.

Stealth Technology

Escape the Hangar in Surface Tension without alerting the Soldiers.

Our Brains And Your Brawn

Assemble all the possible Scientists and Guards at the end of Office Complex.

Less Than Desirable Consequences

Die in the AMS Beam before starting the experiment.

Orbital Trajectory

Skip the opening Xen island with a secret jump.​

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.

Specimen GG

Take out all three Healing Crystals in Nihilanth’s Chamber at the same time​.

Late for Work

Defeat Nihilanth in under 4 minutes.​
+6

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