Plugins

Plugins: install, use and manage

How to add a plugin to a project, use it on the board and remove it — and how to have AI build your own plugin and publish it.

Plugins: install, use and manage

Plugins add new cards and systems to Larch, such as an inventory, RPG maps and battles.

Official plugins

Inventory system: pick up items, open the bag, change the story with items. Free. (Guide)
RPG System: maps, events, battles and multiplayer. Free. (Guide)

Install in two steps

Marketplace → Plugins → open one → Add to My Assets.
Then import it into a project.

You can import it from three places: My assets → Plugins → Import into project… Add card on the board → Plugins tab → Import When creating a project → tick it under plugins

Use it on the board

Once imported, double-click the board → Plugins tab to see its cards.

The inventory system’s three cards, plus Inventory settings and the Item manager

Plugin cards play in the web and Windows versions. Exports to engines such as Unity skip them.

Settings and removal

In Project settings → Plugins you can open a plugin’s settings or remove it. Removing it keeps it in My assets, and other projects are not affected. Cards already on the board keep playing.

Build your own plugin

Marketplace → Plugins → Publish, or press “Have an AI write a plugin”.
Describe what you want, press Copy spec, and paste it into Claude Code, Cursor or ChatGPT.
Paste the JSON it makes back in and press Save test draft to try it yourself.
When it works, press Validate and submit for review. It is listed once approved.

Publish a plugin: describe it, paste the JSON your AI made

Plugins run in a secure sandbox and cannot reach your account data.