Settlers 6: Rise of an Empire

Game Cheats:
Cheat Mode
Open a new game and go to the title screen and then game menu under options:

1703848010 Family Statue
0025722953 Pavilion

Instant bowmen & swordmen, and removing the fog

First activate the cheat mode - hold down ctrl+shft and press / * - in order (the top three keys on your number pad).

Then the ones I know are:

ctrl+4 will give you bowmen
ctrl+5 will give you swordsmen - They will appear where ever your arrow is, even on enemy territory.
ctrl+9 will give you the catapult I think. Just play around with the numberpad and see what you get
Shft+Ctrl+F will lift the fog so that you can see all territories.