@Clever HansWell, it's mostly PvE, where the winter is the main enemy, but there are different clans that will come into play. Different groups have their territories and tend to get upset if the border is crossed.
There is racism, where the larger species are considered the better ones. This has roots in a D&D campaign, where ferrets, rats, mice, hamsters, and squirrels were all available to play, and squirrels and ferrets were top dog, and hamsters and mice were bottom tier. Rats were in the middle. I haven't decided if I want all of them available or not.
This society is utopian and communistic, where the whole of the food is shared equally and crime is well hidden or eliminated altogether. This clan likes to teach trades to younger members so they contribute. If you don't contribute, you are either put to work hunting and gathering, or exiled. Not all clans are the same in this respect, some are more barbaric than others, and others are more capitalistic.
It still has some holes that I'm sewing up while I'm waiting for enough interest for an OOC to go up.