Stencyl is a free program that allows you to create FLASH based games. From what I read, it's not a super dumbed-down program that you can just jump in and use quickly. It does seem, however, to have some good tutorials, and is, for the most part, drag and drop based, with no coding skills necessary. If you have a student who is seriously interested in game creation, this might be a good start for them.
On this site, you can create and "ride" a roller coaster. You select from pre designed bits of track. The goal is to have enough energy to make it through all the loops and hills you wish to throw in.
In this game, you will need to solve puzzles to help Jimmy get all of his toilet paper back. I played through it all, and some of the levels were quite challenging. Good "thinker" for those who thrive on that. Can't save (pretty quick to bust through the levels you've already beat), and I had it crash once, but other than that, fun stuff. (unzip to the desktop and play!)
Simple game where you have to design a roller coaster track to guide your coaster from start to finish point, collecting all the stars along the way. Free is a good price! Unzip the files and play away!
