Andy Baio has compiled a listing of metagames…video games that are about video games.
Over the last few years, I’ve been collecting examples of metagames — not the strategy of metagaming, but playable games about videogames. Most of these, like Desert Bus or Quest for the Crown, are one-joke games for a quick laugh. Others, like Cow Clicker and Upgrade Complete, are playable critiques of game mechanics. Some are even (gasp!) fun.