Are you playing the original or the newer History Edition ? Which specific scenario are you trying to beat right now?
The Warlord’s Fall
– Deals with religious unrest and keeping your population loyal during a crisis. anno 1404 scenarios list patched
If the game has received patches, these might: Are you playing the original or the newer History Edition
If you own the (Base + Venice + all patches), there is a hidden 10th scenario unlocked by finishing all other 9 on Hard difficulty. anno 1404 scenarios list patched
Invest heavily in the Venice Council seats. Buy out enemy island shares to cripple their economy from within before sending your military fleet to wipe out their harbors. Post-Patch General Optimization Tips