I bought this game when it was free for the first 1000 downloads and have really enjoyed it. It is nice because you play asynchronously with other people online. In other words, you don't log in and play one game against one other player all the way through, but play one move at a time. This is nice because you can play just when is convenient and can play more than one game at a time. I would encourage anyone to get this game while it is free again. It is definitely worth 3 or 4 dollars.