diff --git a/tools/README.md b/tools/README.md
index 22e83c8b2..81bff69e1 100644
--- a/tools/README.md
+++ b/tools/README.md
@@ -1,6 +1,11 @@
 openpilot tools
 ============
 
+CTF
+============
+
+Learn about the openpilot ecosystem and tools by playing our [CTF](/tools/CTF.md).
+
 SSH
 ============