I feel like winning with Korea is like playing one difficulty level lower. I'm still not satisfied at all, I want to win DemiGod with a civ that isn't Poland, Babylon, Korea, Shoshone or Persia, ya feel me? I will definitely do a detailed write up soon though, it's just the Korea game was so exceptional (in terms of dirt and wonders I got) it's not representative at all.
I would honestly say that even Acken Immortal is just as hard if not harder than Deity. DemiGod is easily one or two notches above deity, no questions asked.
Now Acken Deity.. I feel like it really is what the name suggests. Acken Deity is for the Tommynt, the Acken, the IronFighter level of players. Some games (Tundra start, Desert start without hills or river, combined with a mediocre civ) are straight up unwinable on Deity, especially if you also have troublesome neighbours like Zulu or Rome.
That being said I will try harder and harder until I crack Acken Deity for good. I can't stop.
My next try will be a mediocre civ on DemiGod. As always Standard/Standard, no reloading (I sometimes reload, for example when I Engineer a wonder and still don't get it, that just kills me). I'm thinking Netherlands or India, though India sucks because their start is so incredibly slow.
I've been pilying up some suggestions for the Civilization UA, UU, UB and UI changes, if you want to hear them (I don't know if you're onto that stage of the mod already) I'll try to make a longer post where I get my thoughts together.