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
On the level 'Outpost' reach the radio tower and broadcast the commander's message.
Kill 50 enemies with heavy automatic shotgun.
Disarm 10 wire traps.
Explode 10 enemies.
Kill 15 enemies using stationary machine gun.
Destroy fascists' Panzer.
Save a group of 'Reds' from Fascist captivity.
Kill 15 enemies using sticky grenade.
On the level 'Frontline' kill all of the enemy Red Army and Fascist Soldiers.
Kill 30 enemies using pneumatic weapons.
Make 25 headshots.
Kill 30 humans with only pneumatic weapons.
Found all gold ammo, hidden throughout the stations.
Blow up the tunnel and airlock at 'Cursed' station.
Complete level 'Armory' without getting caught.
Get 25 kills with alternative fire of Volt Driver.
Kill 50 mutants with your knife.
Get 50 kills with Volt Driver.
Kill 20 enemies with the knife.
Complete levels 'Ghosts' and 'Anomaly' without dying.
Find all Ranger stashes in Dead City 1 and 2
Make 10 deals in weapon shops.
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.
On the level 'Hunter' kill the nosalises before they break through the ventilation grilles.
Complete 'Frontline' level without killing anyone.
Complete the game in Ranger Mode Hardcore.
Complete the game in Ranger Mode Easy.
Exchange 500 Military-Grade 5.45 rounds at Exchange kiosks.
Kill 10 enemies with throwing knives.
Kill 2 demons.
Kill 5 amoebas.
Kill 30 enemies with the double-barreled shotgun.
Kill 5 enemies with a flamethrower.
Kill a librarian.
Break the support and activate the chandelier in less than 20 seconds.
Complete the level 'Black Station' without killing any Fascist Soldiers.
Save 500 military-grade rounds.
Kill 30 enemies using revolvers.
Kill 20 lurkers.
On the level 'Depot' silently kill the first guard and break into the Fascist station unnoticed.
Kill 30 nosalises.
A coin for a hungry kid? Get a job.
What doesn't kill you, makes you stronger.