For those of you who remember the DOS/BBS days before the Internet... this game reminds me hugely of "Heartland PC". This game is definitely retro and old school, and VERY enjoyable. It is very well done, The level of challenge increases by just the right amount as you progress through the game. There are 100 levels after the tutorials, four groups of 25 levels each. After three very intense days of a long weekend, I'm into the last set, and am needing youtube and elsewhere walkthroughs to complete some of them. The graphics are also old schoolish, outside of the opening sequence (which is beautiful), and that doesn't detract from the game at all. The actual game play is very much as it was in the late 80's early 90's. Anyone who loves old school puzzlers should like this game. Glad I nailed this one. Thumbs up from me.