Start a new game and enter Leemur as a leader name.
Reveal entire map and resources
Save the game. Include the word multi in the saved game name. Load the game you just saved. You now can now see the entire map and all resources.
Hints
When other sides demand things off of you, do not click "accept this offer". Instead, click on "Counter-proposal", and then click "Forget this Deal". Then you will not have to give the opposing side anything, and you will not be attacked!!!
When another side wages war on you, the best thing to do is to fortify your cities with your best units. Instead of building Pyramids or Palaces, change all your Cities to produce Archers, Spearmen, or whatever is the best unit you have. Once you surround your Cities with these units, there is less of a chance of them being captured by the opposing sides.
More Food for Citizens
If you find a river next to or within city boundaries, you should irrigate the squares producing no shields in the city. This could keep citizens from starving to death. Also, you should build the Pyramids to put a Granary in all cities, so more food is stored.
More Commerce
Build roads in every square inside the civilization's boundaries. If a citizen works on a square with a road, they produce more gold, causing more production of commerce. Building so many roads also helps units get around faster.
Best Strategy for Invading Other Countries
First, you build a city nearby an enemy country you think you can defeat. Have workers completely surround the city with fortresses and then put 2 of your best defensive units (pikeman, spearman, musketman etc.) in each fortress, and 3 in the city. Then you declare war. They will waste all their offense trying to take the city. Unless you are way behind in technology, they won't even be able to wound your guys because of the fortresses. While defending it, have every other city keep building you best offensive unit (like cavalry, tank, modern armor etc.). I suggest you should make about 15. After their offense is spent, invade their cities like crazy without having to worry about offensive units intercepting you.