Super Notecard Adventures, a fast, simple, and free micro-system for roleplaying games that can fit on a 3x5'' notecard or index card, has been released under a Creative Commons license.
Super Notecard Adventures
Write three words or abilities that describe your character.
When facing a difficult action, roll 2d6 and try to roll 8 or higher to succeed. If you roll doubles, roll another d6 and add it to your roll. If one of your three description words fits the situation, add +2 to your roll. Be sure you describe exactly what your character is trying to do. Combat is handled in a similar way. Roll 2d6 to attack, adding bonuses. If you roll 8 or higher then the defender rolls 2d6, adding their bonuses. If they roll 8 or higher they dodge. If not, one of their description words is stunned for the rest of the combat and can't be used for a bonus. If all of someone's description words get stunned, they're knocked out.© 2013 Journey Through Roleplaying, v1.0, Creative Commons License CC BY-SA 4.1
journeythroughrpg.blogspot.com
sources: