Full list of all 61 Atomic Heart achievements.
The base game contains 42 achievements, and there are 2 DLC packs containing 19 achievements.
Complete the game on Armageddon
Kill Twins
Find out the AoC's secret
Kill Dewdrop
Explore Pavlov
Don't let a sprout grow into a mutant
Kill 3 or more enemies with a single Railgun shot
Get to a hospital
Complete all testing grounds
Find all Lootyagins
Find a testing ground
Collect all weapons
Create five types of weapons
Finish a theater performance
Kill Natasha
Upgrade a weapon to the maximum level
Kill Belyash
Scan all mobs
Hit 20 enemies by a car
Fully upgrade one skill tree
Kill 10 burning enemies, 10 electrified enemies, and 10 frozen enemies
Clear the VDNH complex
Pick all apples in Limbo
Kill Plyusch
Kill Hedgie
Take a train at the Lesnaya Maglev train station
Get out of Vavilov
Create a weapon in a crafting machine
Collect 100 jelly
Fly out of Chelomey
Unlock all achievements
Kill Hedgie without making a single shot / destroy all statues
Kill Belyash with a melee weapon
Craft consumables of all types
Use a phone booth at Chelomey
Find all talking dead animals
Talk to every dead
Find all Chirpers
Get 25 kills with headshots using the PM
Freeze a Vova mid-air
Use Telekinesis to throw an object and knock down an Owl
Get drunk with vodka and kill 5 enemies
Get into the ORB lab
Use a Strekoza for the first time
Send all BEA-Ds to NORA's brain
Complete the Annihilation Instinct DLC
Separate several combined BEA-Ds with one shot from the Secateur
Kill 3 enemies while using technostasis
Kill 3 M4D-5 robots in a row while they're hopping on one foot
Destroy 15 enemies using the Alionka neuropolymeric launch module
Upgrade the Klusha and Secateur to max