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17 dari 50 (34%) pencapaian didapatkan:
Pencapaian Pribadi
 

Brownian Motion

Pass the toilet paper to the Scientist in need.
Didapatkan pada 12 Jan 2021 @ 1:33pm

Caffeine Extraction

Perform surgical caffeine extraction from 20 vending machines.
Didapatkan pada 30 Mei 2021 @ 1:58pm

Calculated Trajectory

Kill 10 airborne Headcrabs using the Shotgun.
Didapatkan pada 4 Agu 2021 @ 4:34am

Convection Refinement

Ruin the microwave casserole.
Didapatkan pada 12 Jan 2021 @ 1:34pm

Dead Reckoning

Kill an Assassin with the .357 Magnum.
Didapatkan pada 24 Jul 2021 @ 4:43pm

Gray Matter Propulsion

Headshot 20 Enemies with the .357 Magnum.
Didapatkan pada 24 Jul 2021 @ 4:40pm

Inflammatory Actions

Kill a Headcrab using fire.
Didapatkan pada 4 Agu 2021 @ 4:35am

Mega Hertz

Kill 5 Enemies with one Grenade.
Didapatkan pada 3 Agu 2021 @ 8:57am

Nuclear Fishin'

Kill an Ichthyosaur with either the Tau or Gluon.
Didapatkan pada 3 Agu 2021 @ 8:44am

Premature Expulsion

Use an entire clip of Gluon ammo in one continuous shot.
Didapatkan pada 3 Agu 2021 @ 2:47pm

Prophylactic Suggested

Get overtaken by a Headcrab's ample anterior.
Didapatkan pada 30 Mei 2021 @ 2:07pm

One Step Ahead

Kill 10 Enemies with Tripmines​​.
Didapatkan pada 24 Jul 2021 @ 4:17pm

Stealth Technology

Escape the Hangar in Surface Tension without alerting the Soldiers.
Didapatkan pada 22 Jul 2021 @ 9:12am

Gonad Glider

Get whacked into oblivion in the ledge fight.
Didapatkan pada 3 Agu 2021 @ 2:47pm

Contest Propellant

Find the snack supply canister.
Didapatkan pada 17 Agu 2021 @ 6:46am

Anti-Matter Over Mind

Kill a Controller without killing any of its mind-controlled Vortigaunt slaves.
Didapatkan pada 16 Agu 2021 @ 7:57am

Limitless Potential

Accept G-Man’s offer of employment.
Didapatkan pada 15 Sep 2021 @ 8:57am



Centripetal Attraction

Kill 20 Enemies with the Hivehand.

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.

Kinetic Repulsion

Kill a Marine with their own Grenade.

Permeable Infrastructure

Use the alternate path in Office Complex.

Proverbial Tinkerer

Interfere with the alarm and laptop in Anomalous Materials.

Quantum Capacitance

Overcharge it anyway.

Rare Specimen

Send the Hidden Hat to Xen.

Remote Detonation

Kill a Barnacle with a Satchel.

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.

PhD in Pacifism

Don't kill any Vortigaunts in the Borderworld.

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.

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.

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.

Well-Done

Cook a Grenade for too long.
+6

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