Credits
Credits, sources and tools
Where the data, images and tools used in the game and on this site come from.
Copyright
© Marcin Krzętowski · Setech Game Studio – GitHub: Setech-pl.
The text of this site, screenshots, montages and recordings: all rights reserved.
Artwork and models (weapons, hands, gadgets, trams, trains, infrastructure, buses, cardboard vehicles, zombie concepts and more): by Marcin Krzętowski, made with the help of AI tools – a local language model supported by cloud models: OpenAI image_gen (ChatGPT) and Codex, and Claude (Claude Code), with processing in Python (Pillow, NumPy, SciPy) and Node.js. All rights reserved.
This site contains no game source code; module names appear only as description.
Maps
The cities and arenas in the game are built from data © OpenStreetMap contributors, available under the Open Database License (ODbL). Every image showing a map or a city carries this attribution in its caption.
Libraries, services and fonts
| Name | Licence | Used for |
|---|---|---|
| three.js | MIT | 3D engine of the client |
| Cloudflare Workers, Durable Objects, R2, Pages | — | backend services |
| OpenStreetMap | ODbL 1.0 | city and arena data |
| Mermaid / mermaid-cli | MIT | diagrams on this site (SVG, no JS in the browser) |
| libwebp (cwebp) | BSD-3-Clause | WebP image compression |
| FFmpeg | LGPL 2.1+ | animation conversion to MP4/WebM |
| Chakra Petch | SIL OFL 1.1 | heading font |
| IBM Plex Sans | SIL OFL 1.1 | body font |
| JetBrains Mono | SIL OFL 1.1 | label font |
Fonts are served by Google Fonts. The site uses no cookies and no analytics; the only script remembers your chosen language in browser storage.
Repository licence
Site content and images: all rights reserved. Exceptions: OpenStreetMap data visible in screenshots (ODbL) and the fonts (their own licences). Full text in the LICENSE file in the repository.