Here is the full list of all 49 Metro 2033 Redux achievements. It takes around 25-30 hours to unlock all of the achievements on Windows.
Complete the level BLACK STATION without killing or knocking out any enemies.
Find the truth.
Complete the game in Survival Mode.
Kill at least one enemy with each weapon available in the game
Complete FRONTLINE level without killing anyone.
Save a group of Reds from Fascist captivity.
Get 30 kills with Hellbreath.
Kill 30 enemies with flame grenades.
Explode 30 enemies.
Complete all 51 of Artyom's hidden Diary pages.
Become a true ranger.
Complete the game in Spartan Mode.
Kill 5 amoebas.
Kill 10 Spiders.
Kill 30 enemies with a flamethrower.
Kill a librarian.
Kill 50 Watchmen.
Kill 100 enemies with assault rifles.
Drink at every occasion.
Make 30 deals in weapon shops.
Exchange 500 Military-Grade 5.45 rounds at Exchange kiosks.
On the level OUTPOST reach the radio tower and broadcast the commander's message.
Disarm 15 wire traps.
Use a Medkit 75 times.
Open 15 locked safe boxes.
Kill 20 lurkers.
Kill 200 Mutants.
On the level DEPOT silently kill the first guard and break into the Fascist station unnoticed.
Save 1000 military-grade rounds.
On the level FRONTLINE kill all of the enemy Red Army and Fascist Soldiers.
Blow up the tunnel and airlock at CURSED STATION.
Kill 100 enemies with shotguns.
Kill 15 human enemies with Headshots from at least 30 meters' distance.
Kill 50 humans with pneumatic weapons.
Kill 100 enemies using revolvers.
Kill 30 human enemies with headshots.
Find all Ranger stashes in Dead City.
Kill 2 demons.
Spend 60 seconds in a Radiation Hotspot.
Kill 100 Human Enemies.
Kill 30 human enemies in close combat.
Knock 30 human enemies out in close combat.
Kill 30 enemies with throwing knives.
Stealthily kill 15 Enemies.
Wipe your Gas Mask 20 times.
Help the poor, a coin for the kid, medicine for the sick. You help everyone you see.
Kill 100 nosalises.
On the level HUNTER kill the nosalises before they break through the ventilation grilles.
Kill 10 Enemies in a row without taking any damage.