# Folder Structure

The folder structure is simple and straightforward, main folders are:

* Built-In
* Materials
* Meshes
* Prefabs
* Scenes
* SRP
* Textures&#x20;

One thing to note though, because there are 18 spaceship sets, each spaceship set content has its own sub-folder, otherwise you will have hundreds of spaceship prefabs all lumped in the same prefabs folder! But this means it’s always better to first open up the catalog scene, know the name of the spaceship set you want to work with, then open up its scene inside the collection folder or use its prefabs after learning its name.
