This is an idea I had while playing those silly Zynga RPGs on Facebook. The premise is an RPG that can be picked up and played within a few minutes then requires a period of time before it can be played again. As such your character would have a "stamina" score that would dictate how many actions can be taken before needing to "rest." Just an idea for a quick and easy game. I'm sure a few of these already exist, so this might not be unique.