Lumen is a logic puzzle game. It uses colored laser beams, colored filters, mirrors and check-points.

The game is played by strategically placing a colored laser and beaming it through the colored check-points. Along the way you may need to use a filter to change the color of the beam to go through other check-points. Once all check-points have been beamed through, the puzzle is complete.

The game is very addicting and boasts over a 1,000 puzzles between application and community. I have spent countless hours playing and have played a few puzzles that made me scratch my head for hours trying to figure them out. If you enjoy logic puzzles, this is a great deal at $1.99 through the App Store.

9/10/08 – I have lowered the star rating from 4.5 to 4. As I have played several of puzzles in the “all puzzles” category, and several of them have crashed back to the previous puzzle. One thing I will mention in their favor, they recently restyled the entire puzzle. It looks really slick now.