we used to play a game similar in the eighties called killer
one dark night
one big park
10 - 20 players
deck of cards and one joker card
rolled up newspapers or water pistols
everyone gets a card one is the joker
the joker is the killer
everyone disperses until a whistle is blown at the 5 minute mark
if the killer is seen killing someone and doesnt kill the witness its bad for the killer
as he can spread the word, however if a killer attempts to trick everyone of that rouse and gets away with it he could wipe out a whole group of people quickly.
if the killer kills someone alone and no one sees it they become a killer a well
if a player sees a killer kill someone he may attempt to kill the killer
if that killer was not the original killer you unbind the killer in that person
if a player kills another player then the killing player must stand still for the games duration until the killer makes him a killer
this new concept takes something similar to a new level playing field with the internet.
If no-one gives your an answer to a question you have asked, consider:- Is your question clear.- Did you ask nicely.- Are you showing any effort to solve the problem yourself 
