Lately I happened upon the vsM SRD. The SRD was based on the vsMonsters game by Phillip Reed.
I was fascinated by the core mechanic, defined like this:
_Draw a number of cards equal to the appropriate Attribute. Compare the value of your highest card against the target value. If the card value is equal to or higher than the target value, the action succeeds. If it is lower, the action fails. _
You start the game with an attribute of 6, two attributes of 4, and one attribute of 3.
Target Values were 4 (Easy), 6 (Average), 10 (Hard), King (Very Hard), Ace (Impossible).
So I did what I always do with mechanics I've never seen, I did the math.
If you have an attribute of 6,
Easy - 0.999998625
Average - 0.999606651
Hard - 0.955488316
Very Hard - 0.653263007
Impossible - 0.397229661
If you have an Attribute set at 6, you will succeed. Seriously, a 40% chance of doing the Impossible. I like those odds!
If you have an attribute of 3,
Easy - 0.997466063
Average - 0.974660633
Hard - 0.775565611
Very Hard - 0.400723982
Impossible - 0.217375566
Your lowest attribute will still do pretty well.
So when you're playing this game, your players will succeed a lot. Reminds me of playing Dungeon World, and playing DW was a lot of fun. 🙂