http://forum.ragezone.com/f198/muonline-world-season-12-episode-1138874/
I've just checked this one and site not working,you cant register - 0 online and there is no information about whats going on, admin probably abandoned his project check it out please.
Cheers
Generally, I personally only consider a server as dead if there's literally been no announcements/player activity for a whole month or if the links are fully down.