Full list of all 43 AMID EVIL achievements. It takes around 12-15 hours to unlock all of the achievements in the base game on Windows.
The base game contains 37 achievements, and there is 1 DLC pack containing 6 achievements.
Find the hidden developer room
Rest easy.
Beat the Abyss
Beat the Arcane Expanse
Beat the Forges
Experience each type of death
Beat Solar Solstice
Beat the Sacred Path
Find an obscure reference
Quit the game
Destroy 5 enemies with a single sun
Find the idol of the ancient god
Beat Domain of the Sentinels
Banish 10 enemies into a black hole
Use each weapons soul mode attack once
Die in the Gateway
Kill all enemies in an episode
Don't pickup anything in a level
Beat Astral Equinox
Get 100 Overkills
Find Evil Difficulty
Kill 10 enemies in under 10 seconds with the Axe
Destroy all decorations in a level
Get all awards in a level
Finish a level with less than 10 health
Use the Axe underwater, in soul mode.
Finish a level with no mana
Extend soul mode for 30 seconds
Beat a level's par time
Get through a level without killing anything
Blow up the earth
Finish a level with full mana
Use a cheat code
Find all the secrets in a level
Finish a level with soul mode on
Kill all enemies in a level
Read all inscriptions in a level.
Find the 3 Developer Artifacts
Defeat the creature
Beat the Black Labyrinth
Defeat the Thunder Spirit
Kill 10 enemies with the Void Splitter's soul mode attack
Kill 15 enemies in under 10 seconds with the gauntlets