We currently use Scratch and nothing else. I'm going to introduce some game making to the curriculum next year so I've been considering the options - your thoughts would be very welcome as my conclusions are based on very limited research. The options I have considered so far are: 1. Game maker. Plenty of teaching materials available so it must be popular. Not too sure about publishing options though. Have not tried yet so I don't know how transferable the skills learnt are. 2. Stencyl. Looks excellent and free. Very Scratch like underbelly, but probably beyond my kids to go beyond adapting what others have already done - which ruins any potential buzz from creating something worthwhile and original. Potential to sell their games on App store could motivate some of the gifted and talented though. 3. Gamestar mechanic. Free and online so there are no installation issues to worry about. Seems a bit simplistic from what little I have seen though and teaching resources are hard to find. 4. Kodu. Free, simple and looks like good fun, so good for motivating disaffected pupils - but teaching resources are hard to find and there's much in the way of transferable skills.