====== Source and licence ======

Both editions are free software under the **GNU General Public License, version 2 or later**. Copyright (C) 2026 Michael Slater (Heisenberg).

===== Desktop edition =====

Free Pascal 3.2.2 and Lazarus 4.4 (LCL, GTK2 on Linux). Source: ''brokenseal-0.6.1-source.tar.gz'' from the downloads page (also installed with the game: ''/usr/share/doc/brokenseal/'' on Linux, the ''docs'' folder on Windows).

<code>
make            # bin/brokenseal
make test       # the rules tests and the desktop tests (about 17,000 checks, including a 10,000-month run)
make gui-test   # plays the real window under Xvfb
</code>

''docs/BUILD.txt'' in the source has the details, including the Windows cross-build and the MSI.

===== Browser edition =====

TypeScript, bundled with esbuild. It needs Node.js 18 or later; the Pascal cross-checks also need Free Pascal and the desktop source.

<code>
npm install
npm run build          # the page, in dist/
npm run build:server   # the online games server, in dist-server/
npm test               # every check
</code>

The browser edition is checked against the desktop edition's own code:
  * the desktop's test suites, ported with the same number of checks;
  * whole campaigns played by both engines from the same start, with every kind of player order, compared byte for byte after every month;
  * hex battles, compared step by step and picture by picture;
  * 625 screens, compared pixel by pixel;
  * the interface and the online server, played through by scripts and in a headless browser.

The rule for changes: anything changed in one edition is changed in the other, and the checks must still match. Online play is the one part that exists only in the browser edition.

===== The online server =====

The online games server is in the browser edition's source, in ''server/''. It runs the same game code as the page, under Node.js, with no other software needed. ''server/README.md'' describes its settings, its files and its admin commands.