I've came across some interesting game sites while reading articles for gamification. I'm addicted to MOOCs and I've learnt lots of staff by taking some courses.
Therefore I thought of trying some of these and prepare some games to use with my students.
This game was created with Zondle. You can find info about it on the TOOL page.
You don't need to sign up to play the games. When using it in the class-I suggest this for all social media and game sites-create accounts for your students. You can re-use these with next year students by changing the password.