Add-on

An add-on is a package format and a type of downloadable content that provides additional custom game features beyond the base game in Minecraft. It contains a set of programming interfaces used for constructing and customizing certain game objects and elements, such as entities, blocks, items, biomes, structures, the user interface, and more. It is officially supported by Mojang Studios, who provide the Creator Documentation for developers.

Add-ons consist of three main APIs: a resource pack for managing assets and resources, a behavior pack for defining data-driven behaviors, and scripting for writing a set of procedural instructions to perform custom behaviors and interactions. These functions and utilities are used for video game modding.

Add-ons are officially hosted on the Marketplace, where players can download or purchase them on their devices using an in-game digital currency called Minecoins. They must be submitted by members in the Minecraft Partner Program and approved by the Minecraft Content Team, or made directly in collaboration with Mojang Studios as official DLC. They can also be packaged for external downloading, but these cannot be imported on consoles.