I have a pretty cool game goin' on.
Started as a designed orthodox sheikh of Alexandria with hugeass diplomacy to counter the permanent -26 Infidel penalty. After a very slow start, I managed to assemble the entire Emirate of Alexandria and install my brother as Emir of Cyrenaica and break free of the Fatimid overlords.
Then I proceeded to lose Cyrenaica right away to the African scum to the west. After hand-picking, importing and converting every good character in Europe I could get my hands on, I built up a solid army and conquered the rest of Egypt (and Nubia) as it was being invaded by vikings. And yes, vikings came to dominate North Africa, with Tripolitania and Kabyeta becoming Norse Petty Kingdoms.
Then things became awesome, as there was a cool dynamic in the levant with the balance of power between Byzantium, Arabia, Egypt and Persia - good positions and everybody had great rulers. I went through defensive wars allies with each of them at some point, but ultimately I settled with the Byz and partitioned the levant with them. Here's the latest screenshot:
Here it is freshly imported into EU4, which actually seems like a cool start:
But I think, for now, I'll continue the ck2 save to invade Rome and restore the Pentarchy while my dood still has enough prestige and piety, then release it as a republic and play as it to restore the Glorious Roman Republic!