The Settlers 3 Faster building
Press [F12] to pause the game, then immediately press [F12] again to resume. Then, one minute in game time will have elapsed for all players.
80,000 credits
While playing the game, hold [F8] for approximately twenty seconds, then press G while continuing to hold [F8].
Change view
Press [F1] for a zoomed in, [F2] for a standard, or [F3] for a zoomed out view.
Faster battles
Continuously right click while fighting to keep your warriors in swordplay and your archers firing.