lvl req to get into nightmare : lvl 25
lvl req to get into hell : 50

50 ppl in a game would be cool

no nasty npcs which give copies of items ( )

but universal stash may lead to duping :

put item(s) to be duped in universal stash
log on with char A from account X
char A open game 1
log on with char B from account X
char B open game 2

now both chars take out item and save/exit

was just a thought , maybe completely bùllshît

I'd call it.. "Korea Vs. The World"
:] :[