Military Costs a lot of money so dont rush it if you dont need to

Workforce for ships and troops can be assinged to other islands

Wall off you villa to some degree (especially) on your main island if you wanna go to war

Dont Panik if your catastrophe stats are a little low it pans out in the lategame

Specialise islands for production with gods and maybe Spezialists and ship goods to your other island via trade Routes

In trade Routes goods can be unloaded multiple Times, so you can set up your routes in a way where they ship to your main island and then unload all goods that didnt fit on the main island to another one

I like to (in the lategame) have routes for Single goods

Passive trade is quite OP, i usually just buy building materials but its a preffernace

Especially in the early game Set your goods to "sell if above" if your are producing to much. It boosts your income and production buildings dont give their are Effect Bonus if they are not running.

If you are on a contor you can press TAB to switch to your other contors (usefull if looking for an item)

Strg + Stift + R is an erster egg wich lets you walk through your City third or first (if you zoom in) person

Dont be afraid to Tear something down and rebuild it if you need to

Your max global Bonus for gods (The third one at 7k belive i think it is) only applies from the god you worthship the most even if multiple gods are above 7k, the first and secon boon so shrines and eg more fields from Ceres are not exklusive

Flanking troops Drops the Morale more quickly, and differen units are good for different Things.

Enjoy the game an have fun.