IT is not a "Party Add on", (Dark archer using my account again) it is simply an addition to the dungeon build by allowing multiple players entering a dungeon and all receiving prizes and fighting for the same goal. (Follows EXP share rule in most games)
BE THAT WAY
anyways.....
What i mean by party addon is,
if you type a command like
/createparty (party name):it would create a party or a group of people that can share the kill amount, and receive the same amount of points for each zombie killed
/joinparty (party name): to join a party thats already been created
/endparty: This is for the party creator only so that he can kill the party (as in, he's leaving so their is no longer a party leader so that the party ends)
Subnote: If possible make is so that the party creater become the "party leader" and everyone else are just part of the party.