What is Lexicon?
Lexicon is a game of Collaborative World Building, which was designed to be played on Wiki. Basically, the players each write sections of the world they are building. At first, they have nothing to build off of, but by the end they are filling in the blanks left by the other 'scholars' they are working with.
Rules to Lexicon
Stolen from http://www.20by20room.com/2003/11/lexicon_an_rpg.html :
The basic idea is that each player takes on the role of a scholar, from before scholarly pursuits became professionalized (or possibly after they ceased to be). You are cranky, opinionated, prejudiced and eccentric. 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.
1. On the first turn, each player writes an entry for the letter 'A'. You come up with the name of the entry, and you write 100-200 words on the subject. At the end of the article, you sign your name, and make two citations to other entries in the encyclopedia. These citations will be phantoms -- their names exist, but their content will get filled in only on the appropriate turn. No letter can have more entries than the number of players, either, so all citations made on the first turn have to start with non-A letters.
2. On the second and subsequent turns, you continue to write entries for B, C, D and so on. However, you need to make three citations. One must be a reference to an already-written entry, and two must be to unwritten entries. (On the 25th and 26th turns, you only need to cite one and zero phantom entries, respectively, because there won't be enough phantom entries, otherwise.)
It's an academic sin to cite yourself, you can never cite an entry you've written. (This forces the players to intertwingle their entries, so that everybody depends on everyone else's facts.) Incidentally, once you run out of empty slots, obviously you can only cite the phantom slots.
3. Despite the fact that your peers are self-important, narrow-minded dunderheads, they are honest scholars. No matter how strained their interpretations are, their facts are accurate as historical research can make them. So if you cite an entry, you have to treat its factual content as true! (Though you can argue vociferously with the interpretation and introduce new facts that shade the interpretation.)
4. This little game will probably play best on a wiki, and it should take a month or so to play to completion. At the end of it, you'll have a highly-hyperlinked document that details a nice little piece of collaborative world-building.
Playing Lexicon on the Traditional Games Wiki
Feel free to play Lexicon on this wiki. First, though, you need to have a prefix decided on for every page in the Lexicon. I would suggest it be something like this: [ThemeAcronym]_Lexicon. You will then use it like this: Let's say the game is the Beta Ceallans (linked below). We would link the pages like this [[BC_Lexicon:Beta Cealla|Beta Cealla]].
This may be a bit more complicated, but it is the best way to allow multiple games to be run on this Wiki, and it eliminates collisions.
Current Lexicon Games
The Brotherhood of Imipolex - Collaborative secret-society building.
My Soul Forever Travels - A fantasy age of sail / age of exploration lexicon. Discover the world!