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