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.
Kill 15 enemies using sticky grenade.
Complete the game in Ranger Mode Easy.
Kill 50 enemies with heavy automatic shotgun.
On the level 'Outpost' reach the radio tower and broadcast the commander's message.
Make 25 headshots.
Kill 30 humans with only pneumatic weapons.
Kill 50 mutants with your knife.
Find all Ranger stashes in Dead City 1 and 2
Complete the game in Ranger Mode Hardcore.
Kill 30 enemies with the double-barreled shotgun.
Complete the level 'Black Station' without killing any Fascist Soldiers.
Kill 20 enemies with the knife.
Complete 'Frontline' level without killing anyone.
Found all gold ammo, hidden throughout the stations.
Get 25 kills with alternative fire of Volt Driver.
Complete levels 'Ghosts' and 'Anomaly' without dying.
A true metro citizen. You know everyone and have seen everything.
On the level 'Frontline' kill all of the enemy Red Army and Fascist Soldiers.
On the level 'Hunter' kill the nosalises before they break through the ventilation grilles.
Exchange 500 Military-Grade 5.45 rounds at Exchange kiosks.
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.
Make 10 deals in weapon shops.
Kill 30 enemies using pneumatic weapons.
Save 500 military-grade rounds.
Kill 20 lurkers.
Kill 10 enemies with throwing knives.
Kill 30 enemies using revolvers.
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.
Explode 10 enemies.
Disarm 10 wire traps.
Complete level 'Armory' without getting caught.
Blow up the tunnel and airlock at 'Cursed' station.
Get 50 kills with Volt Driver.
Kill 2 demons.
Kill 30 nosalises.
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.
What doesn't kill you, makes you stronger.