Dark Strokes: Sins of 

This app is a special edition of the Dark Strokes: Sins of the Fathers game. By installing it on your Mac you have access to the challenges from the aforementioned game plus additional puzzles, a comprehensive strategy guide, the concept art, wallpapers, and many others.

The storyline revolves around a young man Ethan Black who goes on a trip alongside his bride-to-be, Clair, to visit his father. But all changes when, on the way to his father, Clair is abducted by a masked man.

Your objective is to find your bride-to-be and unravel the mystery within your father's hometown. The app provides you with plenty of challenging puzzles and numerous locations which you need to explore.

I like the fact that you can always use the built-in strategy guide or hints when you're unsure which way to go next or how to solve a puzzle.

To summarize, Dark Strokes: Sins of the Fathers Collector's Edition is an addictive puzzle game that can keep you in front of your Mac for hours. The app brings nicely-drawn graphics and cinematics, offers a wide variety of puzzles, and comes with a fair price.