So what kind of a game can I whip up in under an hour and fit on the back of a business card? A role-playing game, obviously. It's called Here On Business, it's set at a conference, and it's designed to play out in 30-60 minutes.
I admit I had to resort to 6-point type, and it's pretty freeform, but I think it works. Let me know what you reckon, and whether I should do a separate run of cards with a skill and combat system on it.