diff --git a/mods/game/maps/README.md b/mods/game/maps/README.md
index fab9943..374f5c2 100644
--- a/mods/game/maps/README.md
+++ b/mods/game/maps/README.md
@@ -1,5 +1,7 @@
 # How to create a map:
 
+WARNING: This tutorial is NOT simple, you need more than one brain cell to follow it.
+
 Requirements:
 
 [Minetest/Luanti 5.0.0 or later](https://luanti.org/)