We've been having some one-off holiday camps this September and spend one of the days playing around with creating Bitsy games. Bitsy is an online game development platform created by Adam Le Doux. This platform is easy to learn and involves no coding experience. Campers are able to create stories and arrow navigation based games within a few hours. With pixel based rooms, avatars, items, and sprites, the product is lo-fi yet engaging.
Try it out... The editor can be found here: http://ledoux.io/bitsy/editor.html
We also created a two-pager quick guide which covers basic navigation and functionality: Bitsy How To
And... here are some games we started on...