# Solana of Kingdoms — Open-Source Credits

This game is deliberately built on open-source software, data, and ideas. It is a
fan-made, Rise of Kingdoms–*inspired* strategy game; it ships no Lilith Games
assets, code, or trademarks.

## Engine & libraries
- **Hand-written HTML5 Canvas engine** — original, MIT.
- **Vite** (https://vitejs.dev) — MIT. Dev server + bundler.
- **simplex-noise** (https://github.com/jwagner/simplex-noise.js) — MIT.
  Procedural world / biome generation.
- **Solana wallet adapters** (Phantom / Solflare / Backpack injected providers)
  and public JSON-RPC (publicnode.com) for the `$KINGDOM` holder gate.

## Game design data (inspiration, original balance numbers)
- **0 A.D. — Empires Ascendant** (https://play0ad.com) — GPL-2.0 code, CC-BY-SA
  art. Civilization roster concept (Rome, Greece, Egypt, Mongols, …) and the
  infantry / cavalry / archer / siege unit structure are inspired by 0 A.D.
- **Freeciv** (https://www.freeciv.org) — GPL-2.0. Tech-tree / branch structure
  (economy vs military research) and city-building economy are Freeciv-inspired.
- All stats, costs, timers, and balance in `src/data.js` are original to this game.

## Art
- **Primary art pack — Tiny Swords by Pixel Frog** (`/public/art/ts/`):
  https://pixelfrog-assets.itch.io/tiny-swords — **License: CC0 1.0 (public
  domain)**, no attribution required (credited here anyway, with thanks).
  Used: ground/grass tiles, trees, Knight castle + house, goblin wood tower,
  resources (gold/wood/meat/sheep/rocks), warrior & archer unit sprites, deco.
- **LPC (Liberated Pixel Cup)** grass/water tiles kept as a fallback in
  `/public/art/` (OpenGameArt, CC-BY-SA 3.0 / GPL 3.0) — only used if the Tiny
  Swords art fails to load. Attribution: the LPC community (Stephen Challener /
  Redshrike, Johannes Sjölund / wulax, Daniel Eddeland, and others).
- Water, ships, marching banners, effects, fog and UI are drawn **procedurally**.
- Title font: **MedievalSharp** by Wojciech Kalinowski (Google Fonts, OFL).
- `src/assets.js` (MANIFEST) + `/public/art/` make it easy to swap in more art;
  missing files fall back to procedural drawing.

## Notes
- "Rise of Kingdoms" is a trademark of Lilith Games and is referenced only to
  describe the genre. This project is not affiliated with or endorsed by Lilith.
- Per CC-BY-SA, if you bundle any share-alike art, keep this file and license it
  compatibly.