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.
Kill 15 enemies using sticky grenade.
Explode 10 enemies.
Kill 30 humans with only pneumatic weapons.
Kill 30 enemies using pneumatic weapons.
On the level 'Frontline' kill all of the enemy Red Army and Fascist Soldiers.
Kill at least one enemy with each weapon available in the game.
A true metro citizen. You know everyone and have seen everything.
There is no place in metro you did not visit
Kill 10 enemies with throwing knives.
Kill 50 enemies with heavy automatic shotgun.
Make 25 headshots.
Save a group of 'Reds' from Fascist captivity.
Found all gold ammo, hidden throughout the stations.
Get 50 kills with Volt Driver.
Get 25 kills with alternative fire of Volt Driver.
Kill 50 mutants with your knife.
Kill 20 enemies with the knife.
A coin for a hungry kid? Get a job.
Complete the game in Ranger Mode Hardcore.
Complete the game in Ranger Mode Easy.
Kill 5 amoebas.
Kill 5 enemies with a flamethrower.
Kill a librarian.
Break the support and activate the chandelier in less than 20 seconds.
Exchange 500 Military-Grade 5.45 rounds at Exchange kiosks.
Complete the level 'Black Station' without killing any Fascist Soldiers.
On the level 'Outpost' reach the radio tower and broadcast the commander's message.
Kill 20 lurkers.
Disarm 10 wire traps.
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.
Complete level 'Armory' without getting caught.
Blow up the tunnel and airlock at 'Cursed' station.
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
Make 10 deals in weapon shops.
Kill 30 nosalises.
Kill 30 enemies with the double-barreled shotgun.
Save 500 military-grade rounds.
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.