Tower of Kings — selected SFX only (not full packs). All CC0 / public domain.

Kenney (www.kenney.nl) — Creative Commons CC0
  https://creativecommons.org/publicdomain/zero/1.0/
  Packs: RPG Audio, Impact Sounds, Interface Sounds, Music Jingles
  Credit would be nice but is not required.

OpenGameArt — Creative Commons CC0
  80 CC0 creature SFX — rubberduck
    https://opengameart.org/content/80-cc0-creature-sfx
  80 CC0 creature SFX #2 — rubberduck (breath_02)
    https://opengameart.org/content/80-cc0-creture-sfx-2
  Large Wings Flap — AntumDeluge (based on dave.des CC0 chop)
    https://opengameart.org/content/large-wings-flap
  Swishes Sound Pack — CC0, created for Summoning Wars
    https://opengameart.org/content/swishes-sound-pack

Mapping (action → game file → original name / pack)

  thunk          thunk.ogg          impactMining_002.ogg          Kenney Impact Sounds
  chop           chop.ogg           chop.ogg                      Kenney RPG Audio
  whistle        whistle.ogg        swish-3.wav                   OGA Swishes Sound Pack
  perfect        perfect.ogg        jingles_STEEL00.ogg           Kenney Music Jingles
                 + thunk.ogg        (stone lock layered in code)
  miss           miss.ogg           impactSoft_heavy_000.ogg      Kenney Impact Sounds
  ui             ui.ogg             click_001.ogg                 Kenney Interface Sounds
  creak          creak.ogg          creak1.ogg                    Kenney RPG Audio
  whoosh         whoosh.ogg         swish-7.wav                   OGA Swishes Sound Pack
  whump          whump.ogg          impactPunch_heavy_000.ogg     Kenney Impact Sounds
  bell           bell.ogg           impactBell_heavy_002.ogg      Kenney Impact Sounds
  dragonWing     dragon-wing.ogg    wings_flap_large.ogg (2 flaps) OGA Large Wings Flap
  dragonRoar     dragon-roar.ogg    roar_02.ogg                   OGA 80 CC0 creature SFX
  dragonAppear   dragon-wing.ogg    wings (see above)
                 + dragon-call.ogg  howl.ogg                      OGA 80 CC0 creature SFX
  horns (>=75)   horns.ogg          jingles_STEEL07.ogg           Kenney Music Jingles
  horns (<75)    horns-small.ogg    jingles_HIT05.ogg             Kenney Music Jingles
  toast          toast.ogg          confirmation_001.ogg          Kenney Interface Sounds
  favor          favor.ogg          handleCoins.ogg               Kenney RPG Audio
  folk('wave')   folk-wave.ogg      ooh.ogg                       OGA 80 CC0 creature SFX
  folk('look')   folk-look.ogg      cloth2.ogg                    Kenney RPG Audio
  folk('walk') / step
                 step.ogg           footstep_concrete_001.ogg     Kenney Impact Sounds
  folk('gag') / shutter
                 shutter.ogg        doorClose_1.ogg               Kenney RPG Audio
  cheer          cheer.ogg          handleCoins2.ogg              Kenney RPG Audio
  gasp           gasp.ogg           breath_02.ogg                 OGA 80 CC0 creature SFX #2

Synth fallback: if protocol is file: or a sample fails to fetch/decode,
audio.js plays the original oscillator/noise body for that method.
Music bed and wind remain synthesized. Rate limits on creak / whoosh /
folk / step / cheer / gasp are unchanged.

Release candidate notes (2026-09-20):
- cheer.ogg remains attributed and bundled for provenance but the celebration now uses an original synthesized crowd vowel, not this coin source.
- The three music arrangements and streak accents in audio.js are original procedural compositions for this game.
- Source licenses above are the repository's asset register; no new third-party sound files were added in this polish pass.