I can currently win in a Gigantic galaxy with 7 Masochistic AIs. But I really abuse High diplomatic skill and tech trading. I am tempted to try a game with tech trading disabled to get out of my comfort zone. I really doubt I can win masochistic without tech trading.
So I wondered what other strategies players used to win on high difficulty.
P.S. I had posted this a few days ago in the GalCiv2 forum but it went under the radar. I guess there are more active galciv players in the GalCiv III forums right now so I am posting this here.