diff --git a/sitemap.html b/sitemap.html
index 5a3c3a9..1045a08 100644
--- a/sitemap.html
+++ b/sitemap.html
@@ -18,6 +18,8 @@
         <a href="tools/retro-bowl/index.html">everybody likes retro-bowl apparently</a>
         <br>
         <a href="tools/ducklife4/index.html">ducklife4</a>
+        <br>
+        <a href="tools/btd4/index.html">Bloons Tower Defence 4</a>
     </body>
     <style>
     html, body {