3D characters: KayKit Adventurers — Kay Lousberg — CC0 1.0

3D engine: three.js — MIT — © 2010-2023 Three.js Authors

QR codes: qrcode.js — MIT — © 2009 Kazuhiko Arase

Fonts: Rubik, Lilita One — SIL OFL 1.1

Voices: Gemini TTS, one voice per character; scripts authored here

Adventure content: authored for Nick Academy — no external database