Audiopack #006
File: msg
CC-BY; Author Jesús Lastra
https://opengameart.org/content/sound-effects-sfx006
RPG Sound Pack
Files: beads, bottle, cloth, coin, drink, fire, heal, magic, mail, pierce, slash, scroll, weapon, wood
CC BY; Author "artisticdude"
https://opengameart.org/content/rpg-sound-pack
https://opengameart.org/content/inventory-sound-effects
37 hits/punches
File: punch
Public domain; Author "Independent.nu"
https://opengameart.org/content/37-hitspunches
Shots
Files: pistol, rifle, shotgun
CC BY; Author Michel Baradari
https://opengameart.org/content/chaingun-pistol-rifle-shotgun-shots
Ice and Electric Magic
Files: ice, electricity
CC BY; Author Iwan Gabovitch
https://opengameart.org/content/ice-electricity-magic
Crypton Future Media
Voices: "The Character Vocal Series software can be used to create vocals for commercial or non-commercial use, as long as the vocals do not offend public policy."
Names: CC-BY-NC https://piapro.net/intl/en_for_creators.html
Hatsune Miku + Kagamine Len (Sing)
Philarmonia Orchestra
License: "You are free to use these samples as you wish, including releasing them as part of a commercial work."
Flute (Wind): http://www.philharmonia.co.uk/explore/sound_samples/flute
Mandolin (String): http://www.philharmonia.co.uk/explore/sound_samples/mandolin
Thai gong (Comedy): http://www.philharmonia.co.uk/explore/sound_samples/percussion/thai_gong
Tambourine (Dance): http://www.philharmonia.co.uk/explore/sound_samples/percussion/tambourine
Piano (Keyboard)
License: "May be used for any projects, without restrictions."
http://theremin.music.uiowa.edu/MISpiano.html
Timpani (Percussion)
"free"
http://www.universal-soundbank.com/timpani.htm
Kazoo (Comedy)
CC BY; Author "Noise Collector"
https://freesound.org/people/NoiseCollector/packs/433
Castanets F2,G2 (Dance)
CC BY; Author "Satoration"
https://freesound.org/people/Satoration/sounds/57300
Castanets A2 (Dance)
CC BY-NC; Author "Katsam"
https://freesound.org/people/Katsam/sounds/237211