Rock Paper Scissors (or RPS, as it's known) is pretty darn easy to simulate because there aren't really many variants or possible outcomes. If you've never played it before, it's a one-vs.-one game ...

Zen and the art of RPS. The best part of the site is where they boil down Rock, Paper, and Scissors into archetypes—the characters of the game, c omplete with some outstanding MS paint mockups.