LEONARDO IS BACK The 4th chapter of the Italian inventor's puzzle series! Unravel the codes, unlock the Cryptex, and escape the room. CRACK 50 NEW PUZZLES The Da Vinci Cryptex 4 is an escape room game with 50 unique riddles written on a book. The more you go on, the harder the puzzles become. Features: 50 unique handcrafted puzzles Hints available (click the bulb button to get a hint) Astonishing graphics Captivating background music If you're a fan of puzzles, math, brain teasers, mind games and IQ tests, The Da Vinci Cryptex 4 is the game for you. Have fun!