Oh, before I delete my old file again, here's the bit of feedback I accumulated in my brief v10 game:
- AI still get Pottery as starting tech on Deity, which leads to some of the civs entering the next era on turn 2 thanks to a goody hut that gives them an advanced tech. This isn't a problem, though, because it seems they are getting other techs as well (6 or so in total), so by turn 100 it's pretty much evened out with every AI civ having around 72-84 points gained from techs (4 per tech), meaning that just because some civs are one era ahead, they still have to research the same basic techs first.
- Slave workers have no option to hurry production (as stated in Leugi's mod thread). Is that intentional?
- The follower belief "Festival of Neptune" is extremely strong in comparison to some other beliefs: +1 Faith from Fishing Boats AND +1 Production from EVERY water tile. Must-have for any civ that isn't totally landlocked. But it's good because that way I don't always go for 2 Faith buildings (Pagoda and Mosque or Synagogue) and take a "passive" instead. If you want to nerf it, my suggestion would be to restrict the production bonus to sea resources, that's still strong enough (because other beliefs only grant one kind of yield in one kind of terrain/feature). Also, the new religious buildings seem a little on the weak side; the standard buildings (Pagodas, Mosques) yield a total of 6, the new ones only 5 or so. Also, I'd treat Faith like Science in that 2 Faith/Science are equal to 1 Food/Production/Culture/Happiness in terms of balance.
- Lastly, a suggestion: Let Iona's druid keep the Ritual promotion after upgrading. Chances are high that your scouts will upgrade to explorers pretty fast, and in the case of druids, that means a downgrade because that debuff and added mobility is awesome. Plus, I don't think it makes Iona too strong if you manage to save some of your earliest units through the entire game to get a lategame advantage. To balance it out, Iona's UA won't have any noticeable effect in mid- to lategame (but it's awesome in early game; I got to be the first to found a pantheon even without goody hut faith).