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Why do you think "pangea, natural shoreline (most important)" is most important?
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because it will generate a map with lots of peninsulas and even small islands and the chances are high that you will start in one of these peninsulas. having to defend on 2 fronts isnt possilble (at lest not for me)
...techtrading off is another must, but i thought that was obvious when playing aw (else the ai will get like 100000 pos. modifiers for mutal struggle and all will happily trade, independend of religion and such)... ...again, not winnable (for me)