@pugbutter, I run two of my four games, actually.
Yes, Nhir is the most important city culturally to this empire, although it is no longer the capital. "Nhirians" references their homeland and point of expansion/influence whereas "Ûzurenids" references the patriarch of their ruling dynasty, King Hezered. The two are interchangeable depending on your character's values.
Most the names and linguistics are very Sumerian, with the geography and culture more on the early Achaemenid side. But I for one envisioned Mneššebnar more like one of the crueler Assyrian kings (Sennacherib, Ashurbanipal) than Cyrus, who made far greater advances in diplomacy, administration, art, and civil rights. Not to say he's evil—no more so than anyone else in this world—but he makes a piss-poor philanthropist.
I'm not too concerned with being accurate to a certain region or era as long as the "feeling" of the world is preserved. I won't be surprised to see people pouring Viking inspiration into their Angaturiz, for example. So although I don't have a hard proxy for all the Semitic peoples yet, you could easily play out your favorite archetype from a wide swath of the world map.
<Snipped quote by Letter Bee>
The Anatolian culture you seek would best match the Ûzurenids/Nhirians, the largest empire on the map (which will be delivered in full for the OOC, although I can send it to anyone's PMs who wants to see the current progress). If you do choose to join I'll be very interested in seeing whether you are loyal to your homeland to the last, or a turncoat in the making ... best of luck to you.