Just added to the links section, this great Science site is already packed with review games for Science - with plenty more promised in the future.
I really like the way it has been put together and it makes great use of the ContentGenerator.net applications
What is also innovative is the way Chris Sheehan has created a sheet for students to print off to record their revision progress. This is a great idea, especially with the way he has given each game an ID tag:
What I usually do is search through the topics on this site I am going to test in the future. Then I write down all the game ID #ís on this sheet. Then I print it out, make copies, and give it to my students as a way to prepare for exams. Each worksheet contains two blank sheets (to save paper).
Do have a look at the site!