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The prototype docs have moved to a new website with an improved format. This documentation page can now be found here:

This wiki page is no longer updated and will be removed at some point in the future, so please update your browser bookmarks or other links that sent you here. If you'd like to contribute to the new docs, you can leave your feedback on the forums.

Prototype definitions » PrototypeBase

The abstract base for prototypes. PrototypeBase defines the common features of prototypes, such as localization and order.

PrototypeBase — abstract
localised_description::LocalisedString (optional)
localised_name::LocalisedString (optional)
order::Order (optional)

Mandatory properties


Type: string
Specification of the type of the prototype.

For a list of all available types and their properties, see prototype definitions. For a list of all types used in vanilla, see data.raw.


Type: string
Unique textual identification of the prototype.

For a list of all names used in vanilla, see data.raw.

May not contain ., may not exceed a length of 200 characters.

Optional properties


Type: Order
Default: ""
Used to order prototypes in inventory, recipes and GUI's.

May not exceed a length of 200 characters.


Type: LocalisedString
Overwrites the name set in the locale file. Can be used to easily set a procedurally-generated name because the LocalisedString format allows to insert parameters into the name directly from the Lua script.


Type: LocalisedString
Overwrites the description set in the locale file. The description is usually shown in the tooltip of the prototype.