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