This is the worst deity game I have ever played, but I really enjoy on fixing the mess and have an interesting story to tell.
I Set up your empire
1. The challenger save
This is the 1st time I chose a challenger save. I always and still think that challenger save is nonsense because xOTMs are games mainly for comparison and fair competition. There are stages for bragging -- BOTMs provide almost every level up to deity, moreover, there have been many difficult maps posted in S&T forum. The only reason I chose the challenger save is because it's not fair to deprive a deity AI's right of invading you because of his lack of strategic resources. Preparing/dealing a defensive war in early stage is very common in a deity game.
2. Wonders
As everyone already knows that GLH and TC are the 2 most important wonders in watery map. In deity game, TC is usally related to Oracle, getting MC from Oracle almost guarantees TC since MC is a low priority tech for AI. However, no matter how hard you want to try, chasing every wonder in a deity game is a risk. GLH and Oracle could be gone between 2000BC~1000BC. So the common strategy of chasing wonders in a deity game is to monitor the date of SH and TGW before starting and also think about how to minimized the cost if failed.
I did not expect to build any wonder from beginning since the capital site is neither commerce rich nor production rich, so I went for Agri->AH->Mining->Sailing->BW in the opening. Until I found that TGW was the 1st wonder gone in 2400BC, which usually is gone between 3000BC~2500BC. The fact that SH was completed in 1800BC told that the wonder dates in this map was immortal level. Therefore I gave GLH a shot, I even researched Mys before Masonry. So in 1640BC I started GLH, with an overflow of 72H, and I saved the 3 forests until the last minute.
3. REXing
In most of the situation, rexing is the optimal way to play a game. Don't let the deity high maintenance scare you, the only thing to stop rexing is the safety consideration of barbarian and aggressive AIs, these two don't exist in this game. There's a famous rule about the number of workers you need -- 1.5 per city. I sniff at it since in over 95% of the game I have played. I have only used less than 1 worker per city. Settlers are the most valuable investment in early stage. A simple criteria for me to choose a build in a city is "Is this build better than a settler?". You certainly have the right to sniff at me as well. But please take a look at this.
I had 8 cities with merely 2 workers in 325BC! You might also question that this was because I grabbed the GLH. Surely GLH empowered and made the rexing much easier, but not the necessary thing. I expanded to 9 cities in BOTM30 in 750BC without building any early wonder. The peaceful expansion ended with 14 cities and 9 workers.
For comparison, here's the situation of my empire at 1AD, ~20 beakers short to Music. 0 cottage build since I don't have enough workers.
4. Diplomacy
This is the most important skill in deity. I usually include the decision of tech path in diplomacy. Your decision of tech path mostly relies on your judgment of what AIs will not research at the moment or in the near future so that you can choose a tech with the most trading value. The wrong decision of tech path is one of the worst thing in a deity game. The timing and what to trade are also very important and complicated. However this skill can only be obtained by experiences and in game intuition.
The relation with AIs is only the apparent part of diplomacy. In this game, the only AI really matters is Toku since you are his nature target if you don't make him pleased (of course this won't be a problem if you did not choose challenger save), but the OB with him and hence Saladin is still a good boost to your economy. I got lucky to get Toku's religion, if not, I will definitely gift him a city or feed enough techs to make him pleased.
5. War or rush
Rush is rarely a good strategy in deity games without overpowered UU such as Quechua, Immortal and War chariot. In most of the time when I went for an early war with a close or an aggressive neighbor, I'd rather do the choke with a few units than go entirely for taking cities. You can stop one AI by rush, however you will easily fall back to other AIs due to the war. Berserker seems appealing in this game, but without seige support, it's bad against LBs, which deity AIs can usually have ~1AD.
II The path to domination and an entertaining story full of stupid moves.
1. The loss of Music race
I started Literature in 325BC when no one has it yet and my cash in stock is enough to complete Music under 100% science slider, then I made 2 foolish moves without any reasonable excuse
A. I did not build research to complete Music 1 turns earlier.
B. Even worse, I make a civic switch to HR + OR 1 turn before the completion of Music, as a result, Nappy won the Music race that turn.
The cost of losing the Music race is that I delayed the CS by more than 10 turns or a precious GA.
2. The loss of navigation
I got Optics from trade and there are several AIs having it more than 10 turns ago, however I neither whipped 2 caravels to head for 2 directions, nor trade map every turn from other AIs.
3. The delay of 1st war
This was the 1st time I played the archipelago map, so by the time I DOWed Toku, it's 1180AD. I had more than 60 units to start. It's a war with cannons + Grens + berserkers vs LBs. A few turns later, I took 4 cities from Toku and made him a vassal.
4. The DOW from Toku -- my 1st vassal
My 2nd war target is Vicky since she was beeline Rifling and had a good research power, so I only took 2 cities and keep ker as a good trading partner. The tech trade opportunity of this game is very low. 4 AIs have the lowest tech trade cap 5*1.2 = 6, and 2 AIs have the medium tech trade cap 10*1.2 = 12. The 3rd vassal is Meh nearby.
The 4th war target was not very clear. From the power consideration, I should go for Saladin, who had Riflemans and was on the opposite area from my stack. SB was the most powerful and dangerous AI, but my stack is on his door and he only had LBs at that moment and I was heading for infantry. Finally I chose SB as the next target.
Now there came the breaking news after I traded SM from Vicky -- I did not own the oil with 2 dozens of cities. Seeing that Toku had an oil, I came up with a thought-to-be-brilliant idea

-- my vassal's resources are mine! Therefore I fed him techs all the way to combustion and then demanded the oil. And here was the brilliant result from the brilliant idea. Now Toku had Destroyers and I had Frigates!
This sudden event forced me to change the entire war plan. I sent my stacks back toward Toku and Saladin. Fortunately the AP resolution popped up in the next turn so I chose to stop the war with Toku and it passed.
5. The sink of my major stack -- 40 units with a medical GG.
The 4th war target now became Saladin since he planted a city on top of an oil. With infantries vs Riflemans, the war result was nothing exciting. My plan was to take the oil site and all 3 cities in his home islands. With the fall of his 3rd city in the 3rd turn of the war, I sent the stack into the captured city and spent ~4000g to upgrade them. The only defending unit for the city was a wounded infantry while all other units were still on board. Then in the beginning of next turn, I heard a very familiar music -- the announcement of the dead of a GG and of course 40 elite units of destroyers + transports + infantries. One and the last remaining camel archer won the battle against my infantry and then sunk my whole stack in one battle. This similar thing happened in my BOTM30 play.
6. The victory
With the superior military techs, I managed to defeat Saladin in a few more turns and included Tokus as a vassal for the 2nd time with the remaining forces and some reinforcements. Then there was a long period of the rebuilding of military -- 10 carriers with 30 fighters and 7 transports with mainly Marines to resume the conquering -- SB->Nappy. 1770AD, the worst date for a domination victory I have ever achieved in deity games, not surprise for the worst performance!
Interested in hearing more story of my silly moves, not until when I am ready to play another deity game.
