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