Okay, to my reading, this sounds like a Medieval game, so weapons is important as well, weapons not similar to any other from video games. Now, each sword has requirements, for example, to make a "Wolf Blade" or something to that effect you need Iron bars.etc you go out and kill things til you find it.. Or go to the auction shop or the shops you plan for this game, to be unlike to other games, forging of our own weapons, customize your blade just like player customization, you have blades to choose from and colors.etc then if you have the requirements you can build it.
Player creation needs to have extreme face editing and body editing because I havent seen a game that did that much for it, like a wii mii creator only not as cheap.. Eyes able to be slanted and moved away and closer to each other, nose can be lightly taken up or down, ears can be moved just a tiny bit up or down, mouth can be moved slightly up & down, four different head shapes, things like that.. Body can be taken into height and width, say you want 6'0 wolf and extremely skinny, so you click the height box and put the size you want it and the limit is 4'5 to 6'5. And then you can change body color, theres two tone buttons one is for a part of the furs color, and the other part of course.
Background music can be either MIDI's or MP3's. Midis can work, it needs to be more advanced then "Dun dun dun" and thats it, which I know a entire website who does MIDI requests. MP3s would have to be small loops size up to 45 sec to the maximum. Or else you can have Nature sound effects like, birds, river sounds, water falls.etc
And of course monsters, would be Humans or evil furrys, i dunno..
Story is the hard one, but I cant make one up now.. My head feels like a air blimp.
I hope this helps you find out what your going to do.
I'll go lay down now.. My head feels like a 1905 outboard motor.. =s