⚔️ Drake Arena

A Twitch chat mini-game that runs as an OBS browser-source overlay. Viewers create a drake, pick an element, queue up and watch turn-based auto-battles play out on stream. It's a single HTML file with no build step and no backend, and it has an English/Ukrainian interface.

▶ Play the demo: no Twitch needed. Use the Chat Simulator in the left column, or press 🎬 Demo.

• Game guide: setup, chat commands, combat rules, titles, and exporting the play log
• Testing: balance simulation, UI smoke test, layout test, fight view test, play log test, CI pipeline

Testing

CI runs all of these on every pull request except the multi-seed check, which is run by hand (details):

• Seeded balance simulations play thousands of fights; a CI gate fails if any element matchup leaves 40–60%
• Multi-seed balance check, run before merging any balance change: levels 1, 10 and 20 and every title tier, over 3 seeds
• Mutation testing: 49 deliberate bugs, and the tests must catch every one
• Per-effect and per-ultimate tests play real turns and check them against the numbers in the game's tables
• Layout and contrast checks at 1920×1080 in Ukrainian and English, with worst-case names, and a check that at startup the overlay loads nothing from the network but Twitch chat
• Seeded UI tests drive the overlay through fake chat in headless Chromium; a fight fingerprint shows visual changes leave fights alone
• Visual review sheets: every fighter card and log card in both languages, committed as images
• Play log test: what the game records about each fight, title roll, element change and !черга, the export with ids instead of names, and fights carrying on when IndexedDB fails

Built with AI assistance (Claude Code); design, testing and balance by Heaxyle.