Licenses of sounds
-----------------

Creative Commons Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0)
http://creativecommons.org/licenses/by-sa/3.0/

Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)
http://creativecommons.org/licenses/by-sa/4.0/

Creative Commons Attribution 3.0 Unported (CC BY-SA 3.0)
http://creativecommons.org/licenses/by/3.0/

Glass breaking sounds (CC BY 3.0):
  1: http://www.freesound.org/people/cmusounddesign/sounds/71947/
  2: http://www.freesound.org/people/Tomlija/sounds/97669/
  3: http://www.freesound.org/people/lsprice/sounds/88808/

default_tool_breaks.ogg by EdgardEdition (CC BY 3.0), http://www.freesound.org/people/EdgardEdition

Mito551 (sounds) (CC BY-SA 3.0):
  default_dig_crumbly.ogg
  default_dig_oddly_breakable_by_hand.ogg
  default_dug_node.*.ogg
  default_grass_footstep.*.ogg
  default_gravel_footstep.*.ogg
  default_place_node.*.ogg
  default_place_node_hard.*.ogg
  default_wood_footstep.*.ogg
  default_dirt_footstep.*.ogg
  default_glass_footstep.ogg

Metal sounds:
  default_dig_metal.ogg - yadronoff - CC-BY-3.0
  - https://www.freesound.org/people/yadronoff/sounds/320397/
  default_dug_metal.*.ogg - Iwan Gabovitch - qubodup - CC0
  - http://opengameart.org/users/qubodup
  default_metal_footstep.*.ogg - (CC0 1.0) - CC0 1.0
  - https://freesound.org/people/mypantsfelldown/sounds/398937/
  default_place_node_metal.*.ogg - Ogrebane - CC0
  - http://opengameart.org/content/wood-and-metal-sound-effects-volume-2

AGFX (CC BY 3.0):
https://www.freesound.org/people/AGFX/packs/1253/
  default_water_footstep.*.ogg

blukotek (CC0 1.0):
https://www.freesound.org/people/blukotek/sounds/251660/
  default_dig_snappy.ogg

sonictechtonic (CC BY 3.0):
https://www.freesound.org/people/sonictechtonic/sounds/241872/
  player_damage.ogg

Sheyvan (CC0 1.0):
https://freesound.org/people/Sheyvan/sounds/476113/
  default_dig_choppy.*.ogg

lolamadeus (CC0 1.0):
https://freesound.org/people/lolamadeus/sounds/179341/
  default_gravel_dig.*.ogg
  default_gravel_dug.*.ogg

Benboncan (CC BY 3.0):
https://freesound.org/people/Benboncan/sounds/71823/
  default_dig_cracky.*.ogg

Erdie (CC BY 3.0):
https://freesound.org/people/Erdie/sounds/41579/
  default_hard_footstep.*.ogg

worthahep88 (CC0 1.0):
https://freesound.org/people/worthahep88/sounds/319224/
  default_sand_footstep.*.ogg

dheming (CC BY 3.0):
https://freesound.org/people/dheming/sounds/268023/
  default_ice_dig.*.ogg

InspectorJ (CC BY 3.0):
https://freesound.org/people/InspectorJ/sounds/416967/
  default_ice_footstep.*.ogg

Angel_Perez_Grandi (CC BY 3.0):
https://freesound.org/people/Angel_Perez_Grandi/sounds/49190/
  default_ice_dug.ogg

Voxelands project <http://www.voxelands.com/> (CC BY-SA 3.0):
  mcl_sounds_place_node_water.ogg
  mcl_sounds_dug_water.ogg

(Note: Artists from the Voxelands project include: sdzen, darkrose, sapier,
      Tom Peter, Telaron, juskiddink)

Michel Baradari <https://opengameart.org/content/lava-splash> (CC BY 3.0):
  default_place_node_lava.ogg

Adam_N (CC0 1.0):
  player_falling_damage.ogg
    Source: <https://www.freesound.org/people/Adam_N/sounds/346692/>

Alecia Shepherd (CC BY-SA 4.0):
  mcl_sounds_cloth.*.ogg
    Source: SnowSong sound and music pack <https://opengameart.org/content/snowsong-sound-and-music-pack>

Unknown authors (WTFPL):
  pedology_snow_soft_footstep.*.ogg