Here is the full list of all 49 Metro: Last Light Redux achievements worth 1,000 gamerscore.
Made Moskvin tell the truth with help from the Dark One.
Saved D6.
Completed the game in Survival Mode.
Saved the Bear from the Watchmen after the fight.
Killed Pavel.
Found out about the Reds' plans.
Completed the BRIDGE level without a kill.
Removed your mask when Lesnitsky demanded.
Killed the Rhino.
Killed 100 Mutants.
Found and returned the crying child's Teddy Bear.
Drank at every occasion.
Rescued the Women and Children on the BANDITS level without raising alarm.
Spent 30 minutes' worth of Filters.
Made 10 Spiders flip belly-up.
Completed the REVOLUTION level without killing and raising an alarm.
Turned off 40 Lights without breaking them.
Used 10 Lever Switches.
Escaped from the Red Line.
Watched the entire Theater Show.
Completed the ECHOES level undetected by the Watchmen.
Burned 50 Cobwebs.
Completed the FACILITY level without killing or raising alarm.
Escaped the chasing Nazis on the REICH level without being caught once.
Freed the Prisoners.
Completed training sequence.
Chosen three primary weapons that use different ammo.
Finish the ASHES level without taking a hit.
See all Visions in the Dead City.
Destroy D6.
Kill all armed enemies on the REVOLUTION level, including all reinforcements.
Disarm 10 Traps.
Complete the SEPARATION level without killing or raising alarm.
Kill 10 enemies in a row with Throwing Knives.
Complete all 43 of Artyom's hidden Diary pages.
Kill the Watchmen attacking the Railcar without taking any damage.
Stealthily kill 15 Enemies.
Kill 100 Human Enemies.
Complete the game in Spartan Mode.
Open 10 locked safe boxes.
Complete the SNIPER TEAM level.
Complete the KSHATRIYA level.
Complete the HEAVY SQUAD level.
Complete the TOWER level.
Complete the SPIDER LAIR level.
Spend 1 hour on the DEVELOPER level.
Complete the PAVEL level.
Complete the KHAN level.
Complete the ANNA level.