2 stars (A good game, but really outdated version :-() - My son and I love to play the daily puzzle of the game of SET at the website setgame.com. Naturally we were excited to see that this version listed "Includes online play" as a feature, because we have multiple PC's at home on our home network. The CD version I received gives the error message "Sorry, your IP address is invalid for this Demo Version" when we try multi-player mode. Then I realized communications options lists only 3 modem speeds - 1200, 2400 and 9600 baud. Cmon folks - This is the year 2005: era of home networks, broadband and multiple cell phones. None of my home PC's even have modems. At this day and age, cannot expect 2 analog phone lines at home to dial each other for "Online play" via slooooow Modems! From the "Help-About" it appears the game may have been last updated in 1994. The vendor really needs to update the software to be compatible with current computer networks. Other than the above gripes, the game itself was functional and looked good. However, I am returning the game as I bought it with online play as a major reason. 5 stars (I like to think it encourages mathematical thinking . . . ) - I've been playing the card game for years--it's wonderful. I'm so happy they've made a computer version so that I don't have to find someone to play against me! As a mathematics educator, I'll definitely get this for my classroom, because I think that it encourages the same kind of thinking required for conceptual problems posed in high-school math classes. (And, theoretically, it can be used to cover some mathematical concepts, like probability.) It's definitely a stimulating game--and I love it. 5 stars (Beginning Player) - I played the computer game SET for the first time last night at a party my parents went to. It was fun but challenging because the computer was finding more sets than I was in the beginning. Other people got interested in the game and everyone started looking for ... SET Enterprises Inc :: Kids (Children) :: Computer software (programs) :: Retro Arcade :: Classics (Classic :: Apple :: Mac :: Macintosh (Machintosh) :: Puzzle (Puzzles) :: Math :: Learning :: :: SET- The Computer Game