i mean if i buy zen, i can use that zen in any game of perfect world that supports zen?
and what's the going ratios? i'm ready to pay decent

directly zen on website (usable for all games) i dont think u can buy.
you could buy cupons 20€ or more and then u buy the zen.
in all games u only can buy coins and then trade for gold or other resources like gold or ingame zen

edit: if u can buy zen directly on website, usable for all games, let me know

This post was edited by leXu on Oct 31 2012 05:07pm

As you can see, that's all the Zen payment options, and 5 of them are online. The maximum per purchase is US$200.