When I read this article (http://www.chimera.info/daedalus/articles/fall2003/impro.html) in the Daedalus ezine, I thought of Universalis. The article is quite helpful in general, but I particularly appreciated his discussion of reincorporation. But it was when I read the following quote that I realized a hidden genius of Universalis.
QuoteRe-incorporation is not just a technique for game masters. In a game where players can introduce elements into the game world (and most do, even in a limited fashion), it's usually easier to get a re-incorporated element accepted than a newly invented one.
In Uni, not only is a reincorporated element more likely to avoid being Challenged, but it is actually cheaper to do. Introducing an existing Component into a Scene costs only 1 Coin. Creating a new Component is much more expensive.
Another plus for Universalis!
Seth Ben-Ezra
Great Wolf
well, I think it's because universalis and impro's storytelling section approach the same subject (creating stories in "real-time"), from a practical, rather than theoretical point of view.
i see the two works as entirely complimentary (i know i got the wrong one there...); impro for the big picture, universalis for the mechanics, reward system, etc.