I'll tell you the game that solved it for me. It's the game that has saved many a game-night for me when someone doesn't show up, or has to leave early, or I plain just couldn't be bothered to prepare anything at all.
It's called In a Wicked Age. It is awesome, light, zero-prep, can learn it in a single read-through, plays fast and is made to last several weeks of session, and is fun, fun, fun.
Here's the link, check it out, and yes, I know I sound like a cheap salesman, but that's what happens when you really like a game. Note that it will not replace D&D by any stretch, of the imagination. But for what you're describing? It's perfect.
It's called In a Wicked Age. It is awesome, light, zero-prep, can learn it in a single read-through, plays fast and is made to last several weeks of session, and is fun, fun, fun.
Here's the link, check it out, and yes, I know I sound like a cheap salesman, but that's what happens when you really like a game. Note that it will not replace D&D by any stretch, of the imagination. But for what you're describing? It's perfect.