Coladia says it has released a new adventure game, The Secrets of Da Vinci: The Forbidden Manuscript. The game centers around the life and works of Leonardo Da Vinci, as seen through an apprentice named Valdo, who is charged with finding missing codices and must search his master's estate for clues.

The title features a non-linear plot based on historical facts and research, with close reproductions of Da Vinci's works. There are 14 chapters to complete on the way to the main secret, with dozens of logic-based puzzles. Four endings are possible, based on swings between good and evil choices.

Forbidden Manuscript requires Mac OS X 10.4 or higher, with a 1.6GHz Intel or G5 processor and 512MB of RAM. It can currently be downloaded for $30.