I created this game on What 2 Learn for the children in my class. It was easy to create and embed. There are several options to choose from and I think it will be a hit with my class. It's free, just sign up and create different versions of games following the easy steps. Once completed submit, play to check it thoroughly and select the embed code on the right hand side in 3 size options and copy and paste to your class blog. Easy, children could even create their own.
Play this game on the what2learn site