User blog comment:Lukwisnie/Categories in Alphabetical Order/@comment-5066566-20120202203601/@comment-957747-20120204211425

Yeah, if you organize all categories added via templates in the order you want them to show on the page, then they reflect that at the bottom.

IE for a quest on Aion, if I want Category:Level 25 Asmodian quests to show up in the list before Category:Asmodae quests, I would have to make sure it was declared in the infobox template first.

See the bottom of Template:Quest infobox and the resultant category order on a sample quest page like Azpha For Health And Well-being.