Complete the indicated task to unlock the achievement.

Achievement	How to unlock
Amanda's great secrets	Open the chest in Amanda's room.
Death of your own accord	Die.
Ears wide open	Listen to the full dialogue about the name "Lusst'ghaa".
Freed	Rescue Amanda from the mansion.
Ideas are always eternal	Finish the game.
In the Cult's clutches	Get captured by the cultists.
In the void of madness	Go insane.
Let Lusst'ghaa swallow you	Defeat Willard Yelverton.
One can never have too much pleasure	Spend 10 minutes at the cultists' orgy in the Yelvertons' Mansion.
Story learned: Arcanes of Lusst'ghaa	Complete the Side Story: Arcanes of Lusst'ghaa.
Story learned: Cult of Ecstasy	Complete the Side Story: Cult of Ecstasy.
Story learned: Yelvertons' Legacy	Complete the Side Story: Yelvertons' Legacy.
The Omniscient	Complete all the Side Stories.
Welcome to Lusst'ghaa	Enter the world of Lusst'ghaa.
Welcome to Yelvertons' Mansion	Enter the Yelvertons' Mansion.