Complete the following tasks to unlock the corresponding achievement. To view your achievements and stats in Steam, select "Community", then "My profile", then "View all my games", then the game and view stats.

Achievement	How to unlock
Air gunner	Kill 30 enemies using pneumatic weapons.
Cowboy	Kill 30 enemies using revolvers.
DJ Artyom	On the level "Outpost" reach the radio tower and broadcast the commander's message.
Demolitionist	Blow up the tunnel and airlock at "Cursed" station.
Enlightened	Find the truth.
Exorcist	Complete levels "Ghosts" and "Anomaly" without dying.
Explorer	There is no place in metro you did not visit
Fire in the hole	Kill 20 lurkers.
First blood	What doesn't kill you, makes you stronger.
Fugitive	Complete level "Armory" without getting caught.
Generous	Help the poor, a coin for the kid, medicine for the sick. You help everyone you see.
Heavy Metal	Kill 15 enemies using stationary machine gun.
Heavy Reader	Kill a librarian.
Hedge-hopper	On the level "Frontline" kill all of the enemy Red Army and Fascist Soldiers.
If it's hostile, you kill it.	Become a true ranger.
Inquisitor	Kill 2 demons.
Invisible man	Complete "Frontline" level without killing anyone.
Ka-Boom!	Explode 10 enemies.
Merciful	Complete the level "Black Station" without killing any Fascist Soldiers.
Metro Trader	Make 10 deals in weapon shops.
Metro dweller	A true metro citizen. You know everyone and have seen everything.
Ninja	Kill 10 enemies with throwing knives.
Nosalis hunter	Kill 30 nosalises.
Old school	Kill 30 enemies with the double-barreled shotgun.
Pathoanatomist	Kill 5 amoebas.
Pyro	Kill 5 enemies with a flamethrower.
Quick Draw	On the level "Hunter" kill the nosalises before they break through the ventilation grilles.
Quick-witted	Break the support and activate the chandelier in less than 20 seconds.
Raider	On the level "Depot" silently kill the first guard and break into the Fascist station unnoticed.
Ranger	Find all Ranger stashes in Dead City 1 and 2
Realist	A coin for a hungry kid? Get a job.
Rescue Ranger	Save a group of "Reds" from Fascist captivity.
Scrooge	Save 500 military grade rounds.
Sherlock	Found all gold ammo, hidden throughout the stations.
Slice & Dice	Kill 20 enemies with the knife.
Sniper	Make 25 headshots.
Soft Touch	Disarm 10 wire traps.
Tank Buster	Destroy fascists' Panzer.
Wheeler-Dealer	Exchange 500 Military Grade 5.45 rounds at Exchange kiosks.