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