diff --git a/DESIGN.md b/DESIGN.md
index 82596d1..7cfeff6 100644
--- a/DESIGN.md
+++ b/DESIGN.md
@@ -1,3 +1,7 @@
 # Launcher
 
 Refer to [docs/launcher/README.md](docs/launcher/README.md)
+
+# Engine
+
+Refer to [docs/engine/README.md](docs/engine/README.md)