I've set up a Runemaster wiki so that info on the game, especially once it releases, can be gathered in a coherent fashion in a centralized region.
This is the 8th Paradox wiki I'm hosting, the other 7 being CKII, EU4, EU3, Vic2, HoI3, HoI4, and EvW.
I hope that the wiki will grow to become a useful resource for all players once the game is released. In the meantime there's a lot of information from the dev diaries and such that could be collected.
Right now there's not that much info there, but that should change with time.
Visit it here.