If you want to try your hand at map-making, you can find the official tools in your Anno 1404 installation folder.
Used to define the "rules" of the game, such as winning conditions, available buildings, and quest lines. 5. Essential Tips for High-Level Play anno 1404 player scenarios
Provides older but classic scenarios that still hold up for modern players. 4. Creating Your Own Scenarios If you want to try your hand at
While the official community platform is no longer active, several fan sites continue to host legendary maps and scenarios: such as winning conditions