Need some help regarding Deity. So far I've been able to manage up to Emperor difficulty fairly well but every time I start a Deity play through I just get steam rolled. I find that no matter how hard I try there's nothing I can do to stop the hyper aggressive Civs, and their large armies, from taking my cities. Are there any tips or tricks in regards to managing a Deity play through?
Tip 1: Play Immortal first. The jump from Emperor to Immortal is huge, but the jump from Immortal to Deity is greater.
Tip 2: Watch some of
TheRealMadDjinn's Let's Play videos, where you can view how he plays the game. His Beyond The Monument video are also useful but usually focus on one particular aspect instead of a whole play through. Sadly I can't remember the best ones to watch, but I wouldn't be able to play Deity without him. He probably explains his actions in greater detail in early videos, but tactics from 2 years ago have been patched over.
Tip 3: Download the In Game Editor mod and give yourself an amazing capital, with rivers, marble, iron, coal, wheat, horse, stone, units and whatever you need to give yourself an advantage. Then play again, but lessen your cheating. Then play again but only tweak slightly. Then play proper Deity.
Edit: I find that even though I can play Deity, Emperor is the highest difficulty I can go and just mess around and have fun. On the highest two difficulties I need to start planning strategies in far more detail and even working things out with pen/paper.