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