GameBuilder lets you create lots of different types of learning games – see the screenshot above to see the options.
Once you create it, anyone with its url address can play. The site also has a large collection of games created by its users.
The site is sponsored by Wisc-Online, which “is a creation of Wisconsin’s Technical Colleges and maintained by Fox Valley Technical College.”
And it’s free!
I’m adding this site to The Best Websites For Creating Online Learning Games.