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.
Complete 'Frontline' level without killing anyone.
On the level 'Frontline' kill all of the enemy Red Army and Fascist Soldiers.
Kill 5 amoebas.
Get 50 kills with Volt Driver.
Kill at least one enemy with each weapon available in the game.
Kill 5 enemies with a flamethrower.
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.
Explode 10 enemies.
There is no place in metro you did not visit
On the level 'Outpost' reach the radio tower and broadcast the commander's message.
Make 25 headshots.
Kill 30 enemies using pneumatic weapons.
Kill 10 enemies with throwing knives.
Kill 20 lurkers.
Kill 50 enemies with heavy automatic shotgun.
On the level 'Depot' silently kill the first guard and break into the Fascist station unnoticed.
Destroy fascists' Panzer.
Kill 15 enemies using stationary machine gun.
Save a group of 'Reds' from Fascist captivity.
Disarm 10 wire traps.
Make 10 deals in weapon shops.
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 50 mutants with your knife.
Complete levels 'Ghosts' and 'Anomaly' without dying.
Kill 30 enemies using revolvers.
Kill 2 demons.
Find all Ranger stashes in Dead City 1 and 2
A true metro citizen. You know everyone and have seen everything.
Kill 20 enemies with the knife.
Kill 30 nosalises.
Help the poor, a coin for the kid, medicine for the sick. You help everyone you see.
A coin for a hungry kid? Get a job.
On the level 'Hunter' kill the nosalises before they break through the ventilation grilles.
What doesn't kill you, makes you stronger.
Kill 30 enemies with the double-barreled shotgun.
Found all gold ammo, hidden throughout the stations.
Kill 30 humans with only pneumatic weapons.
Kill 15 enemies using sticky grenade.
Get 25 kills with alternative fire of Volt Driver.
Complete the game in Ranger Mode Easy.
Complete the game in Ranger Mode Hardcore.