Windmill Whirl (id islehop) - sound and music credits. Every file here is CC0 1.0 / public domain. Licenses checked on each page 2026-10-15.
Format: file | pack / title, original file | author | source URL | license | changes

music-main.mp3 | Happy Adventure (Loop), happy_adveture.mp3 | TinyWorlds | https://opengameart.org/content/happy-adventure-loop | CC0 | renamed
music-lastcall.ogg | Upbeat short Music Loop, Upbeat Loop.ogg | BenjaTheMaker | https://opengameart.org/node/54530 | CC0 | renamed
music-results.ogg | Music Jingles, Pizzicato jingles/jingles_PIZZI12.ogg | Kenney (kenney.nl) | https://kenney.nl/assets/music-jingles | CC0 1.0 | renamed
jingle-finish.ogg | Music Jingles, Pizzicato jingles/jingles_PIZZI10.ogg | Kenney | https://kenney.nl/assets/music-jingles | CC0 1.0 | renamed
jingle-tier.ogg | Music Jingles, Pizzicato jingles/jingles_PIZZI05.ogg | Kenney | https://kenney.nl/assets/music-jingles | CC0 1.0 | renamed
hop-1..5.ogg | Impact Sounds, impactPlate_light_000..004.ogg | Kenney | https://kenney.nl/assets/impact-sounds | CC0 1.0 | renamed
latch-1..3.ogg | Impact Sounds, impactPlate_medium_000..002.ogg | Kenney | https://kenney.nl/assets/impact-sounds | CC0 1.0 | renamed
crack-1..3.ogg | Impact Sounds, impactGlass_light_000..002.ogg | Kenney | https://kenney.nl/assets/impact-sounds | CC0 1.0 | renamed
shatter-1..2.ogg | Impact Sounds, impactGlass_heavy_000..001.ogg | Kenney | https://kenney.nl/assets/impact-sounds | CC0 1.0 | renamed
tick-1.ogg, tick-2.ogg | Interface Sounds, tick_001.ogg, tick_002.ogg | Kenney | https://kenney.nl/assets/interface-sounds | CC0 1.0 | renamed
go.ogg | Interface Sounds, confirmation_001.ogg | Kenney | https://kenney.nl/assets/interface-sounds | CC0 1.0 | renamed
dhop-1.ogg, dhop-2.ogg | Interface Sounds, maximize_006.ogg, maximize_008.ogg | Kenney | https://kenney.nl/assets/interface-sounds | CC0 1.0 | renamed
gull-1.ogg, gull-2.ogg | Interface Sounds, drop_001.ogg, drop_003.ogg | Kenney | https://kenney.nl/assets/interface-sounds | CC0 1.0 | renamed
tulip-1.ogg, tulip-2.ogg | Interface Sounds, glass_001.ogg, glass_003.ogg | Kenney | https://kenney.nl/assets/interface-sounds | CC0 1.0 | renamed
coin-1.ogg | RPG Audio, handleCoins.ogg | Kenney | https://kenney.nl/assets/rpg-audio | CC0 1.0 | renamed (handleCoins2 was dropped in the sound pass: 12 dB quieter than handleCoins)
cheer-1.ogg, cheer-2.ogg | Casino Audio, chips-stack-1.ogg, chips-stack-3.ogg | Kenney | https://kenney.nl/assets/casino-audio | CC0 1.0 | renamed
splash-1..3.ogg | 40 CC0 water / splash / slime SFX (water-splash-slime-sfx.zip), splash_03.ogg, splash_12.ogg, splash_14.ogg | rubberduck | https://opengameart.org/content/40-cc0-water-splash-slime-sfx | CC0 | renamed
wind-loop.ogg | wind whoosh loop, wind woosh loop.ogg | SketchMan3 | https://opengameart.org/content/wind-whoosh-loop | CC0 | renamed
gust.wav | derived from the same wind whoosh loop (wind woosh loop.ogg) | SketchMan3 | https://opengameart.org/content/wind-whoosh-loop | CC0 | the loudest 0.75 s (from 2.15 s), mono 22.05 kHz, swell-and-fade envelope, normalised; made 2026-10-15 for the gust and gull whoosh

sfx-finish-layer-1.ogg | Layered jingle-finish.ogg + coin-1.ogg (original source details above) | Kenney: Music Jingles and RPG Audio | CC0 1.0 | 2026-10-17: staggered layering, gentle pitch variation, gain matched, fades; source licenses rechecked on publisher pages. Kenney sources: https://kenney.nl/assets/music-jingles https://kenney.nl/assets/rpg-audio https://kenney.nl/assets/impact-sounds https://kenney.nl/assets/interface-sounds

sfx-finish-layer-2.ogg | Layered jingle-finish.ogg + coin-1.ogg (original source details above) | Kenney: Music Jingles and RPG Audio | CC0 1.0 | 2026-10-17: staggered layering, gentle pitch variation, gain matched, fades; source licenses rechecked on publisher pages. Kenney sources: https://kenney.nl/assets/music-jingles https://kenney.nl/assets/rpg-audio https://kenney.nl/assets/impact-sounds https://kenney.nl/assets/interface-sounds