diff --git a/README.md b/README.md
index 56c70fb..7a9a9cd 100644
--- a/README.md
+++ b/README.md
@@ -125,6 +125,7 @@ The following projects demonstrate the Mctx usage:
 - [muax](https://github.com/bwfbowen/muax) — MuZero on gym-style environments
 (CartPole, LunarLander).
 - [Classic MCTS](https://github.com/Carbon225/mctx-classic) — A simple example on Connect Four.
+- [mctx-az](https://github.com/lowrollr/mctx-az) — Mctx with AlphaZero subtree persistence.
 
 Tell us about your project.