diff --git a/README.md b/README.md
index ac3569d..7ac7ba3 100644
--- a/README.md
+++ b/README.md
@@ -144,3 +144,9 @@ Lambda1VR is not affiliated, associated, authorized, endorsed by, or in any way
 Lambda1VR is an unofficial port of the Xash3D-FWGS engine, which was originally written by Uncle Mike as a fully compatible open-source GoldSrc engine alternative, more details on that extraordinary project can be found here: https://www.moddb.com/engines/xash3d-engine
 However this port (Lambda1VR) is not affiliated, associated, authorized, endorsed by, or in any way officially connected with the Xash3D team.
 This port was developed using the now deprecated Xash3D port found here: https://github.com/FWGS/xash3d
+
+
+## Licensing
+
+Lambda1VR is covered by the GPL 3.0 license which is inherited from the Xash3D-FWGS project.
+The HLSDK sub-repository and associated works (which include the original 6DoF weapons code by Max Vollmer) are in a separate repository wholly covered with the Valve Corporation Half Life 1 SDK LICENSE (https://github.com/DrBeef/hlsdk-xash3d).