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