Downloading Haunted Halls: Nightmare Dwellers 2.0 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.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. Haunted Halls: Nightmare Dwellers for Mac lies within Games, more precisely Puzzle. This software for Mac OS X is an intellectual property of ERS Game Studios.
From the developer:
Race to uncover an ancient secret in Haunted Halls: Nightmare Dwellers. The night started out like any other. A local collector was complaining about paranormal activity in her mansion, and the authorities called you to get to the bottom of things. But it turns out that the pit of bizarre activity was bottomless.
You may want to check out more Mac applications, such as Haunted Halls - Nightmare Dwellers Collector's Edition, Haunted Halls: Green Hills Sanitarium or Haunted Halls: Revenge of Doctor Blackmore, which might be related to Haunted Halls: Nightmare Dwellers.