Definitely my favorite of the Fluxx games (We have several versions). I bought this for my hubby the sci-fi geek, and even though I'm not nearly as well versed in the sci-fi genre as he and many of our friends are, this is a great game. Best part was, I sent it to a friend and got it signed by Will Wheaton for him! My hubby declared that the game/autograph combo was the "best birthday gift ever", considering we were married on his birthday, I'm not sure if I should be thrilled or offended ;)