I find that the game revolves too heavily around the Gods. The reason this seems a problem to me, is that we have history of the Gods (Laanx being facially scarred by Talad, for example) but no history from then to now. Why is that? It seems to me that the races were intelligent when they entered through the portals, but why wouldn't they record history? Is there some sort of censor set into place by the Octarchy, or perhaps memories of the old worlds were erased when the races walked through the portals so that they wouldn't yearn to return to their old worlds if they found Yliakum to be a rather bad place to live? It just seems really vague to me.
Also another reason why I find this a problem is that we're all pretty much pawns. When the game "starts", it mentions the Gods discovering and shaping the world, as opposed to an important bit of history that actually happened in the mortal plane. So aside from the man who created the Laanx Temple with raw magic (which I'm interested in), there are no important figureheads in Yliakum's history except for the Gods. There might be important Octarchs and the such, but what about great heroes? People who fought bravely against the beasts of the Stone Labyrinths and saved Yliakum, or something of the sort? There's no real conflict to keep people involved, since the Gods can solve all major problems such as the Eclipse, and the Octarchy can simply arrest people the second there's trouble (as long as people follow the guidelines of the Hydlaa guards being everywhere, though). This leaves me wondering what the meaning of life is in this game, since individuals aren't very defined aside from profession.
Also, this one's probably been mentioned before (though I bet all of what I've said has been mentioned before), but if two opposite races, such as Ylian and Enkidukai, can't have a child that's half-Enki and half-Ylian, why are they able to reproduce at all? That's like a human and a dog trying to reproduce...it just doesn't work. Sure, the argument might be used that this isn't real life, but that doesn't mean we can't use mechanics from real life. If you use some but not all of them, people can argue why we can't walk through walls whenever we want, or defy the laws of gravity. Perhaps the Gods did something that would make them able to have a child, but that's not explained anywhere.
There's so much that the people of Yliakum don't know, and probably never will know, which makes me, as a player, wonder if all of these things were thought up in a day or two at most. It's nice to have some mysteries, like whether or not there's a surface to Yliakum (not being able to cross the Stone Labyrinths alive to see is a pretty good reason why people wouldn't know about it), or whether or not the Azure Sun's magic could run out, or the crystal itself would stay dim forever after simply darkening one night, but there are some things people definitely need to know.