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