Meridian 157: Prologue comes from NovaSoft Interactive. It’s a ‘point and click’ Myst-type puzzle. The basic story is that You get to an island off Alaska and are in an abandoned lab. Naturally, there are tons of little puzzles. Interesting: you can set the game for easier/harder puzzles and with/without hints.This first game in a series is free. I’ve already completed this and Chapter 1, which isn’t free.