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.
Kill 15 enemies using sticky grenade.
Kill 50 enemies with heavy automatic shotgun.
Get 50 kills with Volt Driver.
Kill 30 enemies using pneumatic weapons.
Kill 30 humans with only pneumatic weapons.
Get 25 kills with alternative fire of Volt Driver.
Found all gold ammo, hidden throughout the stations.
Kill 50 mutants with your knife.
Complete the game in Ranger Mode Easy.
Complete the game in Ranger Mode Hardcore.
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.
Save 500 military-grade rounds.
Find all Ranger stashes in Dead City 1 and 2
Kill 15 enemies using stationary machine gun.
Kill 20 enemies with the knife.
On the level 'Frontline' kill all of the enemy Red Army and Fascist Soldiers.
Save a group of 'Reds' from Fascist captivity.
Break the support and activate the chandelier in less than 20 seconds.
Help the poor, a coin for the kid, medicine for the sick. You help everyone you see.
Explode 10 enemies.
Exchange 500 Military-Grade 5.45 rounds at Exchange kiosks.
Make 10 deals in weapon shops.
Kill 5 amoebas.
Kill 5 enemies with a flamethrower.
Kill a librarian.
Complete the level 'Black Station' without killing any Fascist Soldiers.
Disarm 10 wire traps.
Kill 2 demons.
Kill 30 enemies with the double-barreled shotgun.
Kill 20 lurkers.
Kill 30 enemies using revolvers.
On the level 'Depot' silently kill the first guard and break into the Fascist station unnoticed.
Destroy fascists' Panzer.
Complete 'Frontline' level without killing anyone.
Complete level 'Armory' without getting caught.
A true metro citizen. You know everyone and have seen everything.
Blow up the tunnel and airlock at 'Cursed' station.
Kill 30 nosalises.
Complete levels 'Ghosts' and 'Anomaly' without dying.
Kill 10 enemies with throwing knives.
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.