Some thoughts on your very excellent mod, cross-posted from what I said on the workshop page:
Had a chance to play through this (not to the "end date" - but a full enough game experience). I played as a Yemeni tribe, quickly shifted to Judaism, and built a slave/trade empire that could take on the Seleucids and Egypt. A few thoughts:
1- I really love the shifts to cultural conversion. Not seeing Egypt go full Macedonian within 100 years really helped me get into the game, playing in that region.
2- The new omen system had some interesting implications - but I found myself going for the same Omens time and again: Population Growth, Reduced Aggressive Expansion, Research Rate, Stability, Tax Modifier. I wonder - is there any way to tie omens to the stats/personalities of your High Priest? Like, a greedy high priest gives a level of tax modifier boost where a founder might give a level of population growth? (This shift could come with an overall reduction by 1 to omen points, to make up for the free level given by the advisor).
3- Did provincial investments get removed? I assume they did (aka, click here to give +1 trade routes). Some of the missions gave these or required them, but I couldn't find the interface to do such. I suspect this is a legacy of mission systems that you've not yet updated.
4- As a former tribe, I had unlimited inventions - the timer continued to advance before I'd completed any research - I was able to acquire every invention instantly for free when I researched anything.
5- Fishing Towns are my favorite thing. I founded Towns in many coastal ports because they don't remove the food resource. These were critical for the desert, with few food resources. I encouraged pirate havens so I wanted to make sure I had forts in my ports. Slave-boosting buildings in towns occupied an excellent middle ground for this - enough space a specialization route, but not quite enough population boost (like cities) to support Aqueduct + Huge Population. Overall my favorite addition.
6- I couldn't figure out how to convert a Tributary to a Client State.
7- Other than the map-mode issue reported by others, I didn't notice many bugs outside of the mission system. Many of the missions could not be completed, but that's no surprise as I don't believe you've gone through them (the generic missions) to update them to your new building system. There was a slight slowdown, likely due to increased complexity and map size, but it remained quite playable throughout.
8- Tiny localization / formatting note - for tribes, the town appears in tooltips as "town" not "Town" where "City" and "Metropolis" are always capitalized in tooltips. Also, the button to found a town still shows a localization string rather than the intended tooltip text.
9- Don't build a cataphract and heavy infantry force with the intention of marching them through a desert. Seriously Bad Idea. [I appreciate this, though I learned the hard way]
10- I appreciate that manpower matters now. I'm not sure if it was a function of my start position or of changes you made, but I found myself consistently low on manpower after wars and skirmishes.