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