I know a lot of people play with them, I don't think you'd be going to the trouble of searching out something like EB if you just wanted to win the game in the fastest time possible without any limitations. For anyone unaware, house-ruling is when you make yourself little restrictions, like "in this game I will not retrain any units", and so on.
So what are yours? Do you have any general ones that apply no matter what you're doing? Do you have any faction- or game-specific ones?
I'm playing a new transplanted faction game (Epeiros-as-Pergamon again), this time with 1.2. I'm trying to keep things slow, I've only got two provinces so far, and I can only have a type II government in Pergamon itself. Everywhere else I have to use type IV.
There's a little roleplaying in that, I'm reasoning that rather than expansion and control, Pergamon is instead expanding its network of alliances with the local kingdoms. Invasions are thus sponsored by one of the factions in the target province, and thus once the fighting is done one of their people is put in charge. Someone who happens to be amenable to the Pergamene throne.
I like to use raids and punitive expeditions rather than straight up conquest. It's 262BC in my game and I've had two wars with the Seleukids. In the first I defeated their invasion and raided Ipsos, in the second I raided Sardis. What I do in a raid is take a settlement, destroy all the buildings, then use Force Diplomacy to get a ceasefire and hand it back in that truce. Has two positive effects; slows them down by destroying infrastructure and wrecking their local economy, and nets me some cash as a reward for beating them.
Punitive expeditions are when I do that across a swathe of land, focusing on defeating their armies more than raiding their provinces. In both instances the house rule is defeat but don't hold. And sue for peace when they've lost any real ability to respond. Feels much more like the conduct of nations, wars with discrete beginnings and ends, not all-out conquest or annihilation.
I also keep a pretty heavy regional and mercenary mix in my army, and don't use phalanxes (because apparently the Attalid kingdom didn't). All my cavalry is regional/mercenary.
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