Night Courier / audio v1.1 (2026-10-06) MUSIC 'I Walk With Ghosts' by Scott Buckley — released under CC-BY 4.0. https://www.scottbuckley.com.au/library/i-walk-with-ghosts/ 'The Summoning' by Scott Buckley — released under CC-BY 4.0. https://www.scottbuckley.com.au/library/the-summoning/ www.scottbuckley.com.au License: https://creativecommons.org/licenses/by/4.0/ Usage: https://www.scottbuckley.com.au/library/using-this-music/ Changes: excerpts, overlapping loop edits, gain normalization, MP3 encoding with circular guard regions. No endorsement by the composer is implied. RECORDED SOUND EFFECTS — CC0 1.0 Impact Sounds by Kenney: https://kenney.nl/assets/impact-sounds 100 CC0 SFX by rubberduck: https://opengameart.org/content/100-cc0-sfx Large Wings Flap by AntumDeluge, based on 'fast simple chop 5' by dave.des: https://opengameart.org/content/large-wings-flap https://freesound.org/s/127197/ License: https://creativecommons.org/publicdomain/zero/1.0/ Changes: trimming, filtering, rate changes, layering, room reflections and mastering. The adjacent manifest.json records every source, local derivative and SHA-256. Music attribution and links also appear in the in-game manual in all 17 locales. Original recordings and license evidence are retained in the source repository under design/audio-sources/dead-air-v1, outside the frontend upload directory.