This project documents the procedural simulation of rotting and decay, which is a natural phenomime many have seen. It can be simulated to add realism to a scene. Several papers relating to this topic have been discussed, highlighting some of the commonly used techniques. A custom-made solver was developed in Houdini18.5 using the Pyro Sop Solver and predominantly the VEX Wrangles and VOP networks to simulate this process. This report outlines the framework to create a rotting simulation of several fruits; apple, banana and orange. This digital asset will allow the user to input their modelled fruit and set various parameters to create the desired rotting effect they wish. Further development is required to add further realism into the simulation