Solve the riddle that has puzzled math students across the world more than 20 years ago.

Now you have a unique chance to put the fantastic world right on your desktop.

Play this online scrabble type game.

Assume multiple roles to create the action and suffer the consequences of this unfolding ever-changing mystery.

Join Professor Samuel Hunt, a scientist of the British Museum, as you venture forth into strange places and solve the most unusual mysteries.

Join Professor Samuel Hunt, a scientist of the British Museum, as you venture forth into strange places and solve the most unusual mysteries.

Join Professor Samuel Hunt, a scientist of the British Museum, as you venture forth into strange places and solve the most unusual mysteries.

Match cards in more than 60 unique levels and go off in search of clues to escape the island.

Search slot machines, hotels and other hot spots to find hidden objects and collect clues to save the day!

Search 20 city locales, find secret keys and piece clues together to crack the case.

You'll explore London and search 25 intriguing settings to solve this royal caper!

A fun-loving New York billionaire has hidden his will somewhere in New York City! Solve puzzles to find it.

Scour the glitzy, glamorous spots around L.A. in search of the missing reel.

Join this crack unit of medical detectives to solve medical riddles in time to save more life.