diff --git a/README.md b/README.md
index 421696fd..173ad0f0 100644
--- a/README.md
+++ b/README.md
@@ -61,6 +61,7 @@ on Yjs. [![Become a Sponsor](https://img.shields.io/static/v1?label=Become%20a%2
 * [Nosgestesclimat](https://nosgestesclimat.fr/groupe) The french carbon
   footprint calculator has a group P2P mode based on yjs
 * [oorja.io](https://oorja.io) Online meeting spaces extensible with collaborative apps, end-to-end encrypted.
+* [LegendKeeper](https://legendkeeper.com) Collaborative campaign planner and worldbuilding app for tabletop RPGs.
 
 
 ## Table of Contents