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