What about the idea of having all the challenges meetable in terms of assigning points, BUT having a cumulative 5% chance of losing a challenge for each person killed? This would make backstabbing riskier, but also mean there is always a motivation for cooperating.

Obviously, I'm still leaning towards doing it this way.

I'm running a modified version of the game here:

http://www.hcrealms.com/forum/showth...64#post3350964

We'll see how it goes this time.