For once I am going to take someone's advice (Erik) and stay away from it. I don't what it's about or how to even play, but I do know I'd rather spend the time playing chess (although I am tempted to google it.....no....must...not...type....in...T..o..w..e..r..D..e..f..e..n..s..e...nooooo!
Anyone played the game called tower defense? It's online and addictive.