Novgorod has a strong start. Play defensively, scorch your land and never press the offensive unless you are absolutely sure Muscovy&friends have nothing left to throw at you.
I've done it on hard mode with AI bonuses, it is tricky but just play smart and remember that winter is like fire: both your friend and your enemy.
I've done it on hard mode with AI bonuses, it is tricky but just play smart and remember that winter is like fire: both your friend and your enemy.