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