Awesome. We got this, used, a year ago for my son who is very mechanically inclined. He doesn't particularly enjoy solving the puzzles, but he will spend hours building his own contraptions. After a year, it's still a hit!
Does not work on Win XP The product description showed that it came out in 2004. The disk says 2000. Either way, it does not work on Windows XP or Vista.
So much fun If you start playing this game, don't plan on doing anything else for a few hours. It is very hard to stop. Fantastic thinking, problem solving, logic, physics skills for kids and adults. I'm about half way through the medium level of puzzles and I'm having a great time.