I'm not exactly a new player but i got a problem.

When i try to dual client i get an error message "Only one instance of the game can be running." I've used the -clone parament. :\

make sure to have two shortcuts, one original and one with the -clone. run the first shortcut, log in then alt tab and run the second. once you close the first tho you cant reopen it without closing the second.

there is a way to do more then 2, but not many people have more then 2 accounts.