Compost fertilizer

Realistic Compost and Fertilizer Management

A new, multi-stage production cycle for organic fertilizer, liquid manure, and charcoal humus—historically inspired and linked to your city's population growth.

What does this mod do?

This mod not only adds new buildings starting at the worker level and slightly improves brick production,

but also increases the population and introduces a complete, tiered economic chain around composting and soil improvement—from a simple collection pit to a professional composting plant with charcoal enrichment. Instead of a single building, an entire system of collection, processing, and distribution facilities is created that grows with your population.

The production chain at a glance:

Collection bins for animal manure, plant residues, and charcoal – the raw material base

Compost building (basic and barrel versions) – processes the raw materials into humus

Liquid manure production – a fermentation product with a realistic maturation time

Wooden barrel and process water production – supporting infrastructure

Rainwater barrel building – collects rainwater and reduces the risk of fire at nearby charcoal kilns

Professional compost bin & charcoal humus – the upgrade level for experienced cities, combining compost with charcoal to significantly increase yield

All buildings are automatically unlocked once your city reaches the required population – starting with workers, then artisans, and finally engineers and investors. The advanced buildings (charcoal humus, professional compost bin) require a certain number of investors before they even become visible – the idea behind this is that only wealthy investors will finance the more complex agricultural research that develops the basic compost into the professional version.

Professional compost bin & charcoal humus – the upgrade level for experienced cities, combining compost with charcoal to significantly increase yield. Historical Background

The game mechanics are based on real processes of the 19th century: the construction and monitoring of charcoal kilns, the dual use of charcoal particles as sealing material, and the agricultural practices of the time (organic fertilization, the Terra Preta principle for soil improvement with biochar). Where game balance requires it, real-world time periods and quantities have been deliberately compressed.

Compatibility

Currently, no issues with other mods are known.

Free guides were used for this mod to avoid conflicts with other mods.

It integrates with existing vanilla buildings via ModOps without replacing them.

Tested with various save games.

Required DLCs

Only the base game is required.

Knowledge Notes

New buildings are only unlocked after the respective population threshold has been reached in an ongoing save game. In save games that are already far advanced, delays may occur depending on Anno's internal trigger registration.

Feedback and bug reports are welcome in the comments.

Initial release: Complete compost/liquid manure/charcoal production chain

in the Old and New Worlds.

Revised version.

Content adapted to DLC products.  No DLC needed

New buildings, new names, adjusted ranges, new effects, new items.

Various unlocks depending on rarity, from 450 workers to 18,500 investors for legendary items. Available from NPCs in the New World and at World's Fair exhibits.

Minor adjustments and fixes

Minor adjustments and fixes

adjusted costs from the quality compost heap and distributor

optional patches:

Unrealistic features were removed, such as: no electricity boost for charcoal burning, no speed boost from bechamel bulbs, flame furnaces, calcining furnaces, Pyrphorian calcining furnaces for charcoal burning, no extra cotton from park rangers, no rubber from charcoal burning.