Full list of all 17 The Case of the Golden Idol achievements. It takes around 6-8 hours to unlock all of the achievements in the base game on Windows.
The base game contains 11 achievements, and there are 2 DLC packs containing 6 achievements.
The Murder at the Little Mermaid
The Dramatic Departure of an Outsider
The Untimely Passing of a Rural Gentleman
An Abrupt Termination of Contract
The Intoxicating Dinner Party
The Explosive Events in the Forest Cabin
The Strange Practices of a Secretive Society
The Crowning Celebration by The Lighthouse
The Interrupted Weekend at the Doctor's Salon
The Triumph of Order
The Slight Delay in the Peaceful March to the King's Castle
The Overly Enthusiastic Card Game Tournament in the Yellow Lily.
The Unfortunate Accident at the Raja's Court
In the Web of the Spider
The Enigmatic Expiration in a Harmonious Island Commune.
The Lemurian Vampire Strikes!
The Less than Amicable Departure of Two Explorers.