Here is the full list of all 24 Estencel achievements.
Complete all achievements.
Leave the Esten lands.
Defeat the Supreme Creation of Whiteness.
Get to the Esten Palace.
Survive the encounter with the Greater Est.
Smash all the Lampheads.
Collect all the Coats.
Get to the Esten Castle.
Collect all parts of the Reverse White Symbol.
Collect all the Hats.
Defeat Prisoner Richard.
Defeat the Blue Guardian.
Collect all the Weapons.
Defeat the Toll Doll.
Defeat the Third Guardian.
Defeat the Wolf Monster.
Get to the Miriecel.
Get to the Estencel.
Defeat the Kovales.
Defeat the Esten Guardian.
Survive the encounter with the Wolf Monster.
Get to the Green Roofs District.
Start a new game.