you can open nonsteam css while steam is opened.YOu have to pay, becasue Nonsteam-CSS doenst start while Steam is opened.
This is just like normal Steam CSS. Its not kind of an exploit.
I heard for a program called STEAM ID CHANGER.You just create steam account and you start up Steam and then you can play CSS nosteam with steam turned on.So you can change your steam id with creating new steam account.
Yes.But you just dont have to pay.
I open steam and play with nonsteam game.