Myst needs little introduction. The puzzle adventure game was a smash hit when it originally released on the Macintosh in 1993. Now, it's available on Android too. The latest port, developed by mobile studio Noodlecake, is called realMyst and features a bunch of improvements, including "dynamic environments," a built in hint guide and "bookmarks" for saving and restoring your progress. You will, of course, have to put up with touchscreen controls, or hook up a Bluetooth gamepad for some analog stick action. Otherwise, it's classic Myst, with the iconic island and devious puzzles faithfully restored. Can you remember all of the solutions?