Hmm... you may have trouble coming up with a planet which is primarily boreal, anyway. I'd think that most with significant boreal forests would be classed as tundra or arctic anyway.
It does seem to be splitting hairs a bit. Do we want something part way between continental and ocean? Desert and arid? There are planetary modifiers and different terrains on the tiles. Maybe that should be enough.
It does seem to be splitting hairs a bit. Do we want something part way between continental and ocean? Desert and arid? There are planetary modifiers and different terrains on the tiles. Maybe that should be enough.