Here is the full list of all 48 Metro 2033 achievements. It takes around 20-25 hours to unlock all of the achievements on Windows.
Kill 5 amoebas.
Kill 5 enemies with a flamethrower.
Kill at least one enemy with each weapon available in the game.
Kill a librarian.
Break the support and activate the chandelier in less than 20 seconds.
Complete the level 'Black Station' without killing any Fascist Soldiers.
There is no place in metro you did not visit
Kill 30 enemies using pneumatic weapons.
Kill 30 humans with only pneumatic weapons.
On the level 'Outpost' reach the radio tower and broadcast the commander's message.
Kill 15 enemies using sticky grenade.
Make 10 deals in weapon shops.
Kill 30 enemies with the double-barreled shotgun.
Kill 50 mutants with your knife.
Kill 20 lurkers.
Kill 20 enemies with the knife.
On the level 'Depot' silently kill the first guard and break into the Fascist station unnoticed.
Destroy fascists' Panzer.
On the level 'Frontline' kill all of the enemy Red Army and Fascist Soldiers.
Explode 10 enemies.
Save a group of 'Reds' from Fascist captivity.
Make 25 headshots.
Kill 10 enemies with throwing knives.
Disarm 10 wire traps.
Exchange 500 Military-Grade 5.45 rounds at Exchange kiosks.
Save 500 military-grade rounds.
Complete level 'Armory' without getting caught.
Blow up the tunnel and airlock at 'Cursed' station.
Kill 30 enemies using revolvers.
Complete levels 'Ghosts' and 'Anomaly' without dying.
Get 25 kills with alternative fire of Volt Driver.
Find all Ranger stashes in Dead City 1 and 2
Kill 2 demons.
Kill 30 nosalises.
A true metro citizen. You know everyone and have seen everything.
Help the poor, a coin for the kid, medicine for the sick. You help everyone you see.
On the level 'Hunter' kill the nosalises before they break through the ventilation grilles.
What doesn't kill you, makes you stronger.
Complete 'Frontline' level without killing anyone.
Kill 15 enemies using stationary machine gun.
A coin for a hungry kid? Get a job.
Found all gold ammo, hidden throughout the stations.
Kill 50 enemies with heavy automatic shotgun.
Get 50 kills with Volt Driver.
Complete the game in Ranger Mode Easy.
Complete the game in Ranger Mode Hardcore.