Much of the code and art from this mod were taken nearly unchanged from
Mobs Redo, made by TenPlus1 and many others, and distributed under the
WTFPL license.

https://forum.minetest.net/viewtopic.php?f=11&t=9917


All of the goblin code and art are taken from FreeLikeGNU's Goblins mod,
distributed under the CC-by-SA license.

https://forum.minetest.net/viewtopic.php?f=9&t=13004&hilit=goblins
http://creativecommons.org/licenses/by-sa/3.0/


Some of the code, art and ideas were taken from HeroOfTheWinds' Caverealms
mod, distributed under the WTFPL license.

https://forum.minetest.net/viewtopic.php?f=9&t=9522


The changes I've made to these mods are minor, but crucial to dealing
with an all-underground environment. The mobs don't have vertical
range limits, are less affected by light, and they behave a bit
differently from the originals.



The rest of this mod is distributed under the LGPL 2.1 license for
historic reasons.

http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt