From what I'm led to believe from Fog, the game ends when you (the admin) make a quest that is the final one. I'm not sure how else the game can be ended or if you can declare a winner based on number of player kills, monster slays, highest level, etc.
If you have any suggestions on how to make it better please post them.
One thing I'd like to see is if you die and don't have the money to buy more energy, health, etc, you are automatically resurrected after a 48 hour time period with all of you health, energy in place to try and start again. Too many people are in the graveyard. I don't know if this can be done though.