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