Fungrow

An idle decay sim

Fungrow is a PC idle sim about breaking down a forest’s living biomass. You start with one Cremini and a forest floor, then build a cycle in which mycelium rots the world into deadwood and mushrooms digest that deadwood into spores. The goal is to make the supply chain run until the biomass counter reaches zero.

At first, you click the forest floor to gather deadwood by hand and feed your mushroom. As mycelium and mushroom populations grow, you spend spores to expand both sides of the cycle. Too little mycelium leaves mushrooms without food; too few mushrooms means deadwood accumulates. A supply chain panel tracks the bottleneck and suggests what to increase.