Simulation Fixer is a utility add-on for preparing objects for rigid body physics and destruction simulations in Blender. It centralizes several small functions needed to prepare geometry for physics calculations, aiming to resolve common issues encountered during destruction setups.

The add-on includes tools for identifying zero-vertex objects, applying transformations like scale and rotation, and optimizing particle performance for building destructions. It functions alongside built-in physics tools or other dedicated destruction add-ons.