Old World Cathedral for Anno 1800 is a mod designed to enrich the gameplay by allowing players to construct a grand cathedral in stages, similar to the World’s Fair. This mod introduces significant gameplay mechanics, as the completed cathedral offers a 5% reduction in goods consumption for all residential houses within its large radius, and it also adds 5 happiness points. Players can build the cathedral after reaching certain investor milestones, specifically at 5000, 7500, andinvestors, which dictate the ability to construct various stages of the building.

The installation process involves extracting the provided .zip file and placing its contents into the Anno 1800 mods folder. The mod is designed with compatibility in mind, being standalone yet compatible with the Old-Town mod. With improved textures and a smaller size compared to its predecessor, this cathedral is visually appealing while maintaining functionality. Careful planning is advised to ensure an appropriate building location to avoid issues with elevation discrepancies.