Une idée de jeu de rôle (?) qui semble, en théorie à tout le moins, brillante : Lexicon : An RPG

You are a cranky, opinionated, prejudiced and eccentric [scholar]. You are also collaborating with a number of your peers — the other players — on the construction of an encyclopedia describing some historical period (possibly of a fantastic world).

The game is played in 26 turns, one for each letter of the alphabet.

[via Paranoia XP]