Most of our products are for the GRAM Role-Playing Game. For more about the system, check out Shaping the Sword. If you'd like to see what sort of campaigns we've played, look at The Sagas of GRAM. If you're looking for something low-prep, you'll want the Ready to Roll series, where you get all the background, characters, and scenario in one handy package. You just need the module of your choice and the Ready to Roll - Rules & References to play.
But maybe that sounds like too much work. Games are meant to be fun, right? Right! Sometimes, you just don't want to do a lot of reading and instead, you'd like to do a lot of playing. That's where Quick Hits come in, these microgames are short and sweet, and pretty entertaining. Some are more like real short RPGs, where others might be something even more abstract. Use them for when you need a break from your campaign, or just having a quick get-togther with friends.
And if you're looking for inspiration for your own games (and stories and art), we also have an entire section of system agnostic setting material, fiction, advice, and etc filed under GM Aides.