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