The Dice Deck Designed Role Playing Game has a couple of interesting mechanics. To resolve an action, you roll 2d10, multiply by 10 and add the result of 1d10. If you roll a 10, you roll again, making the result somewhat open ended. You compare this score to attributes which range from 2 to 200 points.
The other interesting mechanic is the use of “culture cards”, which define the various races, and groups in the game.