Looking for a Free Game suggestion for Con Play

[Logos7]

Hey everyone,

Here I am considering running a slot or two (at most ) at a convention coming up in the fall. That said, While Dnd 4th edition is my main squeze at home, I do play various games, and I do not want to run Dnd 4th edition in public with strangers. So oddly enough I was thinking of an Indie/Free type game, and I thought I would come here for suggestions.

If you had to suggest 1 Free Game to Play with Strangers at a Con setting, what would it be.

Suggestions

~Quick Start Rulez (for a priced game), are not what I would consider a Free game.
~Games that do not require me printing a metric shit ton of pages are a definite plus.
~Games that have adultish content are fine, an excuse to shut down people using games as a baby setting service is not the goal but ...
~Games that do not require excessive retraining/rethinking about the games/genres/real life issues are a plus as well. My agenda here is free games not advancing interpersonal narratives, understanding or revisionist experiance.

Thanks ahead of time for your suggestions.

Logos
~and yes I will be hitting the various, 'Pimp others games' threads and such on my own, but I thought I would ask.

[Chainsaw Aardvark]

[Kinslayer]

It's d20, but tiny. Most of the supplements are three pages, including the OGL statement. There are also variants such as M74 for superlite old-school retro-clone gaming.