Derived from

[LPC] Animated water and fire by Sharm
https://opengameart.org/content/lpc-animated-water-and-fire
http://creativecommons.org/licenses/by/3.0/

Misc. Dark Fantasy Scenery Sprites by Gwes
https://opengameart.org/content/misc-dark-fantasy-scenery-sprites
http://creativecommons.org/publicdomain/zero/1.0/