MazVN:
[edit]Although I might be more interested in a completely unarmed and unarmoured arena. I don't think that's been done yet? Also it would avoid the many potential problems of how to buy equipment and money and so on.
I suspect something like that would almost necessarily
have to wait until the release of
Tactical Grappling. The unarmed combat rules in general, and the close combat/grapplin' rules especially, seem woefully underdeveloped in the current material.
One big positive side of an "Open Knowledge Arena" is that, in a lot of ways, it would be self-policing as far as munchkinism goes. If somebody throws together an obnoxiously abusive build, people can see it in their character sheet and know to just avoid that person. The issue of a player who's only out to see how hard they can murder everyone else / make the rules cry spoiling things for other people in an arena would be largely circumvented.