Downloading Nightfall Mysteries: Curse of the Opera 1.0 for Mac from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this app available. This software for Mac OS X was originally created by Vast Studios. The software belongs to Games.
From the developer:
The Curse of the Opera is a brand new Hidden-Object Game which integrates the tension of a classic "Agatha Christie-esque" murder story with modern day thrill-tactics and mind-busting puzzles.
As a lowly stagehand in an Opera Company, you are challenged with solving this murder mystery in an isolated town.
Take on the role of a lowly stagehand in an opera company tasked with solving a deadly mystery!
You may want to check out more Mac applications, such as Nightfall Mysteries - Asylum Conspiracy, Nightfall Mysteries: Haunted by the Past or Macabre Mysteries Curse of the Nightingale, which might be similar to Nightfall Mysteries: Curse of the Opera.