G5 Entertainment has released Paranormal Agency: The Ghosts of Wayne Mansion for Mac OS X 10.7.4 or higher.

Here's how the game is described: "This spine-chilling hidden object adventure will tickle your nerves with plenty of chills, a ghostly storyline, approximately 100 vividly presented scenes for exploration, wonderful mini-games and splendid graphics.

"It all starts when your car crashes into a hooded figure at the gate of a stunning house. But, despite being a ghost hunter, you suspect pranksters are involved in most of the so-called paranormal events happening here. Now you'll have to search every corner of this estate, pick up useful items and solve tricky puzzles to determine if this is someone's wicked hoax … or a real ghost story!

"The gameplay offers you a number of tricky tasks, such as playing against experienced card players, sinking six billiard balls in each pocket with a single stroke and putting eight chess queens on the board so that none of them beats the other. So work on your poker face, practice your kickoff technique and train your brain to spot clues that can save your life."

Paranormal Agency: The Ghosts of Wayne Mansion is available for download at the Mac App Store (http://tinyurl.com/ptps32y). Gamers can try the game for free and unlock the full version through an in-app purchase for US$4.99 through Aug. 21. After that, the price will be US$6.99.