Here is the full list of all 45 Children of Morta achievements. It takes around 25-30 hours to unlock all of the achievements on Windows.
Construct Ben's wine machine.
Bring back 15 souvenirs from the dungeons.
Upgrade The Book of Rea 15 times.
Kill 250 ferocious enemies.
Find 10 secrets.
Finish a dungeon in co-op mode.
Revive 5 times in co-op mode.
Unlock all family traits.
Upgrade 75 times in the workshop.
Kill 100 enemies using hazards.
Kill a boss with every playable character.
Use 5 charms in the same dungeon run.
Complete 10 challenge rooms.
Resolve 20 puzzle events.
Complete 10 in-run events.
Find 20 journals.
Find 10 divine items in a single dungeon.
Defeat OU.
Reunite the automata.
Have 20000 Morv.
Free Anai-Sarava.
Kill a boss without receiving damage.
Unlock all family traits of a Bergson.
Free the blackmarketeer.
Shelter the stargazer.
Bring Hope into the world.
Upgrade 25 times in the workshop.
Upgrade The Book of Rea 5 times.
Free Anai-Raha.
Free the runemender.
Have 3 runes equipped simultaneously.
Complete 5 in-run events.
Unlock all playable characters.
Rescue Mary.
Kill 5000 enemies.
Free Anai-Dya.
Kill 50 ferocious enemies.
Gain each obelisk effect at least once.
Save the wolf cub.
Unlock a family trait of three different Bergsons.
Upgrade 10 times in the workshop.
Defeat the Spider King.
Free the shopkeeper.
Unlock a family trait.
Investigate the shrine of Rea.