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Đạt được 21 trên 50 (42%) thành tựu:
Thành tựu cá nhân
 

Brownian Motion

Pass the toilet paper to the Scientist in need.
Mở khóa vào 6 Thg12, 2022 @ 4:20pm

Caffeine Extraction

Perform surgical caffeine extraction from 20 vending machines.
Mở khóa vào 2 Thg12, 2020 @ 8:39am

Convection Refinement

Ruin the microwave casserole.
Mở khóa vào 13 Thg11, 2020 @ 3:16pm

Dead Reckoning

Kill an Assassin with the .357 Magnum.
Mở khóa vào 16 Thg05, 2021 @ 5:42pm

Digital Wizardry

Kill 10 enemies with a reprogrammed Sentry.
Mở khóa vào 13 Thg09, 2023 @ 2:01pm

Gray Matter Propulsion

Headshot 20 Enemies with the .357 Magnum.
Mở khóa vào 13 Thg09, 2023 @ 2:18pm

Inflammatory Actions

Kill a Headcrab using fire.
Mở khóa vào 11 Thg12, 2022 @ 7:07am

Kinetic Repulsion

Kill a Marine with their own Grenade.
Mở khóa vào 30 Thg12, 2023 @ 12:49pm

Permeable Infrastructure

Use the alternate path in Office Complex.
Mở khóa vào 13 Thg09, 2023 @ 7:48am

Prophylactic Suggested

Get overtaken by a Headcrab's ample anterior.
Mở khóa vào 12 Thg02, 2021 @ 1:48pm

Proverbial Tinkerer

Interfere with the alarm and laptop in Anomalous Materials.
Mở khóa vào 13 Thg09, 2023 @ 5:59am

Quantum Capacitance

Overcharge it anyway.
Mở khóa vào 31 Thg08, 2023 @ 2:02pm

Rare Specimen

Send the Hidden Hat to Xen.
Mở khóa vào 17 Thg09, 2023 @ 5:51am

Remote Detonation

Kill a Barnacle with a Satchel.
Mở khóa vào 14 Thg09, 2023 @ 9:46am

Resonance Procrastinator

Refuse to insert the specimen into the Anti-Mass Spectrometer.
Mở khóa vào 13 Thg09, 2023 @ 6:11am

Universal Gravitation

Get killed by your own Snarks.
Mở khóa vào 14 Thg09, 2023 @ 5:33am

One Step Ahead

Kill 10 Enemies with Tripmines​​.
Mở khóa vào 30 Thg12, 2023 @ 9:59am

Our Brains And Your Brawn

Assemble all the possible Scientists and Guards at the end of Office Complex.
Mở khóa vào 13 Thg09, 2023 @ 7:54am

Less Than Desirable Consequences

Die in the AMS Beam before starting the experiment.
Mở khóa vào 13 Thg09, 2023 @ 5:55am

Limitless Potential

Accept G-Man’s offer of employment.
Mở khóa vào 19 Thg03, 2021 @ 4:19pm

Well-Done

Cook a Grenade for too long.
Mở khóa vào 8 Thg09, 2023 @ 9:08pm



Calculated Trajectory

Kill 10 airborne Headcrabs using the Shotgun.

Centripetal Attraction

Kill 20 Enemies with the Hivehand.

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.

Mega Hertz

Kill 5 Enemies with one Grenade.

Nuclear Fishin'

Kill an Ichthyosaur with either the Tau or Gluon.

Premature Expulsion

Use an entire clip of Gluon ammo in one continuous shot.

Unified Coupling Theorum

Help the Barnacle and Headcrab find true love.

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.

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.

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.

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.​

Rather an Anticlimax

Decline G-Man’s offer of employment.
+7

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