Translated from French with the help of AI; the French text prevails.
- Terrain
- DHM200 digital elevation model and swissNAMES3D geographical names. © swisstopo, Open Government Data. swisstopo.admin.ch
- Border and lakes
- Generalised municipal boundaries (2025 edition). Federal Statistical Office (FSO), GEOSTAT; copy made on 06.08.2026. Via the swiss-maps package (Interactive Things, BSD-3-Clause). bfs.admin.ch
- Upper Engadine lakes and glaciers
- Lakes Sils, Silvaplana and St. Moritz, and glacier outlines: swissTLMRegio (2024 edition), Federal Office of Topography swisstopo, Open Government Data. The moraines are computed by the project from the relief. swisstopo.admin.ch
- Railway line
- Railway network (ch.bav.schienennetz). Federal Office of Transport (FOT); copied on 09.09.2026, opendata.swiss OPEN BY. The trains on it are an evocation inspired by SBB, with no mark and no model reproduced. data.geo.admin.ch
- Places and sites
- The sites around the places (names and summaries): Switzerland Tourism, licensed under CC BY-SA 4.0. The places and their descriptions are written for the game. myswitzerland.com
- 3D models
- Trees from Kenney’s Nature Kit (CC0 1.0); “Sailboat” by Poly by Google, via Poly Pizza (CC BY 3.0). Model modified: recoloured and reoriented. kenney.nl · poly.pizza
- Paper textures
- Scanned papers from ambientCG (CC0 1.0), from which the project draws the relief’s grain and creases. ambientcg.com
- Music
- “Balance” by Komiku, by day and at dusk; “Sunset Plains” by Yoiyami, at night; “Surfing” by Komiku, in Clotilde’s run (CC0 1.0). Files re-encoded. Balance · Sunset Plains · Surfing
- Sounds
- In Clotilde’s run, a snowball bursting, by bajko, a small crowd’s cheer, by moxobna, and a cowbell, by timgormly, all three on Freesound (CC0 1.0). Files re-encoded. bajko · moxobna · timgormly
- Code
- Claude (Code), without whom the project would have stayed one.
- Romansh translation
- Translated on the basis of the Apertus model (Public AI). Needs proofreading by a Romansh speaker. swiss-ai.org
- Illustrations
- All the illustrations are images created with gpt-image, OpenAI’s image model: places and sites, Clotilde, game objects, stamps, patches, treasures, nature guide species, specialities and scenery. They are not photographs.
- 3D engine
- Three.js (MIT licence). threejs.org
- Open-source software
- React (Meta), React Three Fiber, react-three-rapier and zustand (Poimandres), Rapier (Dimforge), Base UI, Tailwind CSS, react-intl (FormatJS), Lucide, Vite and Astro, under the MIT, ISC, BSD-3-Clause and Apache 2.0 licences (licence texts).
- Typeface
- Caveat, by Impallari Type, Bevan, by Vernon Adams, and Nunito Sans, by Vernon Adams, Jacques Le Bailly, Manvel Shmavonyan and Alexei Vanyashin (SIL Open Font License 1.1). OFL 1.1
- Inspiration
- Bruno Simon’s 3D wisdom. bruno-simon.com
