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 50 enemies with heavy automatic shotgun.
Kill at least one enemy with each weapon available in the game.
Kill 30 enemies with the double-barreled shotgun.
Kill 15 enemies using sticky grenade.
Get 50 kills with Volt Driver.
Found all gold ammo, hidden throughout the stations.
Get 25 kills with alternative fire of Volt Driver.
Explode 10 enemies.
Complete the game in Ranger Mode Hardcore.
Kill 5 amoebas.
There is no place in metro you did not visit
Kill 5 enemies with a flamethrower.
Kill a librarian.
Break the support and activate the chandelier in less than 20 seconds.
Kill 30 humans with only pneumatic weapons.
Kill 30 enemies using pneumatic weapons.
Complete the level 'Black Station' without killing any Fascist Soldiers.
Kill 50 mutants with your knife.
Kill 15 enemies using stationary machine gun.
On the level 'Frontline' kill all of the enemy Red Army and Fascist Soldiers.
Kill 2 demons.
Kill 10 enemies with throwing knives.
Kill 20 enemies with the knife.
On the level 'Hunter' kill the nosalises before they break through the ventilation grilles.
Make 25 headshots.
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.
Save a group of 'Reds' from Fascist captivity.
Complete 'Frontline' level without killing anyone.
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.
Complete levels 'Ghosts' and 'Anomaly' without dying.
Find all Ranger stashes in Dead City 1 and 2
Kill 30 enemies using revolvers.
A true metro citizen. You know everyone and have seen everything.
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.
What doesn't kill you, makes you stronger.