I actually haven't ever played EU4 (though my friends have and I know a good deal about it through them) but I might eventually start, because at this point I am honestly too good at Crusader Kings for it to be much fun. I can usually start as a duchy or county and blob across half the map with impunity, eventually reaching the point where nobody can withstand my doomstacks and I just sit on fast forward waiting for civil wars. At that point, it gets pretty boring.
Apparently you can use some DLC transfer your CK2 saves into EU4 ones and play with the nation you've carved out, and then transfer your EU4 save into Victoria. I've been meaning to try that with Rome, as I've heard that if you reform the Roman Empire in CK2 and transfer it into EU4 you get cool stuff.
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But anyways, on the topic of this RP I made a pretty detailed map of Terus, just to avoid making confusing descriptions of where everything is when I get around to filling out the notable locations section. I named some of the surrounding oceans and lands (this by no means has to be an official name, it's just what the Azracs call those places) but I also plopped down Niraq outside of my own borders.
Niraq was like one of the other four Azrac cities until a few hundred years ago, when that war between Azraca, Arman, and Arhus resulted in it being razed. Now it and much of the land it once controlled has been abandoned by Terus and it's full of barbarians, outlaws, fugitives, et cetera.
It might make sense to move my border to encompass that region south of the North Pass, just so I'm not writing history and plopping down locations in what someone else might try to claim for a nation they create. But I guess it isn't necessary, because the Dominion of Terus does not rule that land de facto, and their de jure claim to it is rather dubious as well after having abandoned it for so long.