Alright, so taking a break from the Chaos hordes, I tried my hand at the Cathayan colony in Napyara.
What am I doing wrong?
I can't seem to do anything against the Tomb Kings to my west: I always get attacked by the northern realm (Avaki), and am sometimes able to defeat them with judicious use of my Astermonancer (assuming I don't get any miscasts). It's particularly frustrating that the king of Avaki, because he has a low Martial, is unlikely to actually lead an army, and it's a roll of the dice whether or not I'm able to duel him anyway, and if I can't kill the Tomb King, I literally cannot besiege any of his holdings, because they have garrisons in the 1900 range, and I can put 1800 troops in the field at maximum, which is unlikely because fighting Nehekharans bleeds armies like nobody's buisiness.
Assuming I can achieve a stalemate with Avaki, what generally happens is the southern Nehekharan kingdom, Qalisha, attacks and successfully conquers the only adjacent Lizardman province, then proceeds to take my southernmost county. Unlike Avaki, there is nothing I can do to affect these guys: the main Tomb King and his two vassal kings have 6,000 men between them, which are better troops and have unbreakable morale, and even if I do kill all three Tomb Kings (which in unlikely, since coming into contact with one of their stacks means I'm going to lose at least 2/3rds of my forces), it won't matter, because their armies are still active even if the Tomb King is destroyed. Yes, that means their levies are reduced to zero, but in the here and now, that's still 6,000 undying soldiers bearing down on Naparaya.
I don't see how a Naparayan ruler can ever get strong enough to avoid getting ground into paste by their Tomb King neighbors. The retinues look nice, but I don't start with any retinue-increasing buildings, and it would take literally a decade+ in order to save up enough cash to buy the first Sculptor's workshop, which only gives me one-fifth the retinue cap I need for the cheapest retinue (the Terracotta one), not to mention the fact that 1,000 extra pikemen won't really be much help against the 3,000 that Qalisha can put in the field anyway.
The only solution I can potentially see working is launching an immediate attack on the Coiled Covenant to take control of some territories off-shore and eventually rebuild from there. But the Coiled Covenant has roughly twice the forces I do, so that's unlikely in the extreme to work, especially while my home provinces are getting conquered by Nehekharans.
So, what gives? Am I missing something ridiculously obvious? Saving up for buildings seems like a fool's bargain because the building options for Cathayans suck, (even the Race Guide in the FAQ says so), there are no mercs available, so the only other use for money is even more useless than spending 250+ to get an extra 20-or-so heavy infantry, and given that you're the only Celestial ruler in the area, alliances are also right out.