diff --git a/README.md b/README.md
index e1ee0903..4cda4a65 100644
--- a/README.md
+++ b/README.md
@@ -60,6 +60,7 @@ on Yjs. [![Become a Sponsor](https://img.shields.io/static/v1?label=Become%20a%2
   sharing analyses, documentation, spreadsheets, and dashboards.
 * [Nosgestesclimat](https://nosgestesclimat.fr/groupe) The french carbon
   footprint calculator has a group P2P mode based on yjs
+* [LegendKeeper](https://legendkeeper.com) Collaborative campaign planner and worldbuilding app for tabletop RPGs.
 
 ## Table of Contents