Hi,
I have been trying to collect information about the style to a
project wiki page recently. The game has very little content at the moment and the style isn't established in practice, apart from perhaps character art, so some confusion is expected. The existing graphics, out of which many are placeholderish, can be found by
browsing the git repository. Perhaps you could use them as a size reference for your own models or something like that.
In general, if there's something related to style and content that isn't documented in the wiki, you can decide it yourself. Any important decisions would be nice to discuss beforehand, but generally you can just read the relevant things from the wiki and follow your own judgment after that. I'd be glad to answer any questions or discuss things too so it's pretty much up to you to decide which way you'll work.
The task list is incomplete since there's still so much missing and thinking of and listing everything isn't practical. In general, the things from which the game would benefit the most at this point would be monsters, map objects and tiles (caves/buildings/furniture/plants/etc.), reagents and other collectibles (logs/ores/plants/etc.), various items (clothes/armor/crafting tools/steampunk style guns/etc.), and character art. You're free to pick yourself or come up with your own ideas too.
I'm not sure if the wiki explains some of the technicalities very well so if there's something that doesn't make sense to you, let me know and I'll try to clarify it. Well, as long as you create your model with Blender and use image textures and, in the case of animated models, armature modifiers, the rest of the work needed to get the model exported could be handled in no time.
By the way, may I ask where you heard about the game? Our publicity guy wanted to know for some reason.