Try playing on Hard, guys!
It's a giant rift in complexity between Challenging and Hard.
I advice all beta-players to give it a try.
In first ~20 turns weaker factions a wiped away by roaming monsters, and stronger ones become stronger, by turn 30 they declare warm and by turn 50 you are dead.
Player can't really explore around freely, because powerful monsters block fertile areas. Champion's proress is slower, gildar goes to minus faster.
All in all, rather unbalanced, but extremely entertaining after a number of wins on Challenging