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50 achievement su 50 (100%) ottenuti:
Achievement personali
 

Brownian Motion

Pass the toilet paper to the Scientist in need.
Sbloccato in data 28 giu 2021, ore 14:09

Caffeine Extraction

Perform surgical caffeine extraction from 20 vending machines.
Sbloccato in data 28 giu 2021, ore 16:49

Calculated Trajectory

Kill 10 airborne Headcrabs using the Shotgun.
Sbloccato in data 29 giu 2021, ore 5:10

Centripetal Attraction

Kill 20 Enemies with the Hivehand.
Sbloccato in data 30 giu 2021, ore 16:15

Convection Refinement

Ruin the microwave casserole.
Sbloccato in data 28 giu 2021, ore 14:07

Dead Reckoning

Kill an Assassin with the .357 Magnum.
Sbloccato in data 30 giu 2021, ore 10:37

Digital Wizardry

Kill 10 enemies with a reprogrammed Sentry.
Sbloccato in data 30 giu 2021, ore 10:12

Ethically Questionable

Conduct all of the questionable research experiments.
Sbloccato in data 30 giu 2021, ore 11:00

Futile Resistance

Kill 10 Enemies with Snarks.
Sbloccato in data 30 giu 2021, ore 11:14

Gray Matter Propulsion

Headshot 20 Enemies with the .357 Magnum.
Sbloccato in data 29 giu 2021, ore 6:41

Hyper Saturation Conundrum

Drown in Lambda Core's coolant.
Sbloccato in data 1 lug 2021, ore 15:13

Inflammatory Actions

Kill a Headcrab using fire.
Sbloccato in data 28 giu 2021, ore 15:07

Kinetic Repulsion

Kill a Marine with their own Grenade.
Sbloccato in data 29 giu 2021, ore 16:17

Mega Hertz

Kill 5 Enemies with one Grenade.
Sbloccato in data 30 giu 2021, ore 9:38

Nuclear Fishin'

Kill an Ichthyosaur with either the Tau or Gluon.
Sbloccato in data 30 giu 2021, ore 15:03

Permeable Infrastructure

Use the alternate path in Office Complex.
Sbloccato in data 30 giu 2021, ore 9:54

Premature Expulsion

Use an entire clip of Gluon ammo in one continuous shot.
Sbloccato in data 1 lug 2021, ore 15:10

Prophylactic Suggested

Get overtaken by a Headcrab's ample anterior.
Sbloccato in data 3 lug 2021, ore 13:18

Proverbial Tinkerer

Interfere with the alarm and laptop in Anomalous Materials.
Sbloccato in data 30 giu 2021, ore 9:05

Quantum Capacitance

Overcharge it anyway.
Sbloccato in data 30 giu 2021, ore 11:05

Rare Specimen

Send the Hidden Hat to Xen.
Sbloccato in data 7 lug 2021, ore 4:44

Remote Detonation

Kill a Barnacle with a Satchel.
Sbloccato in data 29 giu 2021, ore 8:19

Resonance Procrastinator

Refuse to insert the specimen into the Anti-Mass Spectrometer.
Sbloccato in data 30 giu 2021, ore 9:15

Unified Coupling Theorum

Help the Barnacle and Headcrab find true love.
Sbloccato in data 5 lug 2021, ore 3:30

Universal Gravitation

Get killed by your own Snarks.
Sbloccato in data 30 giu 2021, ore 11:01

Prolific Popper

Kill all Protozoans in the Borderworld.
Sbloccato in data 5 lug 2021, ore 14:41

PhD in Pacifism

Don't kill any Vortigaunts in the Borderworld.
Sbloccato in data 6 lug 2021, ore 3:33

The Rarest Specimen

Carry the Hidden Hat to Endgame.
Sbloccato in data 8 lug 2021, ore 13:13

One Step Ahead

Kill 10 Enemies with Tripmines​​.
Sbloccato in data 5 lug 2021, ore 15:37

Stealth Technology

Escape the Hangar in Surface Tension without alerting the Soldiers.
Sbloccato in data 30 giu 2021, ore 16:47

xen when

Wait too long to jump into the Lambda Teleporter.
Sbloccato in data 5 lug 2021, ore 22:56

Our Brains And Your Brawn

Assemble all the possible Scientists and Guards at the end of Office Complex.
Sbloccato in data 28 giu 2021, ore 17:14

Less Than Desirable Consequences

Die in the AMS Beam before starting the experiment.
Sbloccato in data 30 giu 2021, ore 9:11

Orbital Trajectory

Skip the opening Xen island with a secret jump.​
Sbloccato in data 5 lug 2021, ore 15:40

Following the Rules

Use the welcome mat.
Sbloccato in data 3 lug 2021, ore 13:40

Doctor’s Signature

Deliver the finishing blow to Gonarch with your Crowbar.
Sbloccato in data 5 lug 2021, ore 4:32

Gonad Glider

Get whacked into oblivion in the ledge fight.
Sbloccato in data 5 lug 2021, ore 3:10

Post-Mortem Interval

Find each member of the missing research teams.
Sbloccato in data 5 lug 2021, ore 16:27

The Plan

Use Cyanogen to kill Gonarch.
Sbloccato in data 5 lug 2021, ore 4:20

Unquestionably Ethical

Don't use the Cyanogen and let the Gonarch live.
Sbloccato in data 5 lug 2021, ore 4:21

Contest Propellant

Find the snack supply canister.
Sbloccato in data 6 lug 2021, ore 3:32

Laser Immunization

Complete Interloper without taking any laser damage.
Sbloccato in data 5 lug 2021, ore 14:25

Black Mesa Decathlon Winner

Escape the Gargantua’s Lair without taking any damage from Gargantuas.
Sbloccato in data 5 lug 2021, ore 15:29

Anti-Matter Over Mind

Kill a Controller without killing any of its mind-controlled Vortigaunt slaves.
Sbloccato in data 5 lug 2021, ore 11:12

Specimen GG

Take out all three Healing Crystals in Nihilanth’s Chamber at the same time​.
Sbloccato in data 5 lug 2021, ore 14:51

Late for Work

Defeat Nihilanth in under 4 minutes.​
Sbloccato in data 5 lug 2021, ore 15:11

Limitless Potential

Accept G-Man’s offer of employment.
Sbloccato in data 5 lug 2021, ore 14:59

Rather an Anticlimax

Decline G-Man’s offer of employment.
Sbloccato in data 5 lug 2021, ore 14:58

Pepperoni Precipitation

View the *other* secret ending.
Sbloccato in data 14 lug 2021, ore 8:43

Well-Done

Cook a Grenade for too long.
Sbloccato in data 29 giu 2021, ore 5:45