u need patch 6.12 to use it

the cheat players 1-8 changes the monsters drops, exp, health points and damage.
players 1 being the easiest monsters to kill because it has low hp and attack, but it
gives low exp points and mediocre drops
players 4 being the normal thing
and players 8 being the most hardest monsters to kill because it has low hp and high
attack but its drops is the best and gives exp points like a fountain

how to do it?:
press enter(when you have 6.12) and type /players 1-8