diff --git a/Concepts/LICENSE b/Concepts/LICENSE
new file mode 100644
index 0000000..6ea1404
--- /dev/null
+++ b/Concepts/LICENSE
@@ -0,0 +1,5 @@
+shipyard_airport.png from:
+    https://opengameart.org/content/pixel-city-shipyard-and-airport
+    License: CC0
+
+All other images on this folder are also CC0-licensed.