Gregory's ServerSuch as modding, or?
I mean, I'd just write the guys and ask them. Honestly, I think this is the sort of thing you're actually looking for - something someone's spent a lot of time working on (it is their job - this odd little game about living in Finland around the ice age, or after...)
@mjd I am explicitly looking for open content stuff at the moment, to talk about open content, as part of a #diymedia thing.
This game looks neat, but it probably isn't useful for this particular project.