I love this game; the artwork, music, and puzzles are unique and great. The help facility is a gas. But....games are saved into a volatile cache area of a browser, so if you run cleanup maintenance on your browser you will lose all saved games. I use Safari. I periodically run a utility that cleans house on my Mac, so I've gotten far into the game only to lose saved games. Back to the beginning. There are supposed workarounds, but I see no evidence of that - at least on my Mac. I'm waiting for an update before I can finish the game.