Valsept

Curious

Use cradle

Grand Master

Unlock all the other Achievements

Bookworm

Read all the notes placed in the game

Expert Gamer

Finish the game in Expert mode

The Chosen One

Mastermind

Finish all minigames without skipping

Sharp-Eyed Investigator

Complete all Hidden Object Scenes without using hint

Doctor

Find all mysterious scrolls

Guardian

Teacher

Miner

Ride down the mine

Fireman

Widow

Master

Find 4 mysterious scrolls

Watcher

Watch the first 10 cutscenes

Fisherman

Helping Hand

Save fishes

Precise Targeting

Complete one puzzle with less then 5 mistakes

Clever One

Finish three minigames in a row without skipping

Traveler

Travel to Cannon Rock

Bachelor

Find mysterious scroll

Fast as Lightning

Finish a minigame in less than 1 minute

Fast and Precise

Finish any Hidden Object Scene in less than 1 minute

Self-Sufficient Seeker

Complete any Hidden Object Puzzle without using hints

The Eye

Find 3 Hidden Objects in less than 3 seconds

Brownian Motion

Pass the toilet paper to the scientist in need.

Caffeine Extraction

Perform surgical caffeine extraction from 20 machines.

Calculated Trajectory

Kill 10 Airborne Headcrabs using the Shotgun.

Centripetal Attraction

Kill 20 enemies with the Hivehand.

Convection Refinement

Ruin the microwave casserole.

Dead Reckoning

Kill an Assassin with the .357 Magnum.

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.

Gray Matter Propulsion

Headshot 20 enemies with the .357 magnum.

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.

Mega Hertz

Kill 5 enemies with one grenade.

Nuclear Fishin'

Kill an Icthyosaur with either the Tau or Gluon.

Permeable Infrastructure

Use the alternate path in Office Complex.

Premature Expulsion

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

Prophylactic Suggested

Get overtaken by a Headcrab's ample anterior.

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.