MakeTile is licensed under the GNU GPLv3 http://www.gnu.org/licenses/

All objects, materials and images bundled with MakeTile in the form of a .blend file are copyright ModMod Terrain Ltd under the Creative Commons BY 4.0 Deed license unless otherwise noted. This means that you can use the meshes and materials bundled with MakeTile for any purpose, inclduing commercial purposes, as long as you provide attribution.

Current exceptions are any meshes required for the generation of OpenLOCK tiles which are copyright Printablescenery under the Creative Commons-Attribution-Non-Commercial license

If you would like to produce OpenLOCK compatible tiles for commercial purposes please contact Printablescenery for a free commercial license