UGC stands for User Generated Content, which is a term used by Roblox for types of items and assets that can be created by a user, such as models and audio. The UGC program allows users to create and sell their own virtual items, including accessories and clothing, through the Roblox UGC marketplace. The process of creating a UGC-limited item involves a combination of creativity, skill, and entrepreneurship. Those interested in creating them need to have a good understanding of the Roblox Studio, the platforms game development tool.

To become a UGC creator, users have to apply to the program. If accepted, they can upload meshes created in Blender to the catalog for people to wear as an accessory and put it on their avatar. UGC creators can potentially make a lot of Robux, which is the virtual currency used in Roblox, by creating and selling their own virtual items.

There are many tutorials available on YouTube that teach users how to make UGC items using Roblox Studio and Blender.