pokemon-tcg-sim

Play the competition's Pokémon TCG against a trained agent

You pilot one seat in the browser; a policy trained by behavioural cloning pilots the other. No game rule is implemented in the web app: every legal move, every coin flip and every card effect comes from the competition's own C++ engine, which this image compiles from source at build time. The UI only ever offers the exact option list the engine put in front of your seat.

New game → pick a deck (five prebuilt lists, or build your own over the whole 1267-card pool), pick an opponent, pick a seat.

Cards are the real scans, and the opponent's turn is replayed one action at a time — each card it plays is held up with its art — because a board that changes all at once tells you nothing about what it decided.

Notes on running here

• The native engine keeps one battle per process, so this Space runs one engine process per player: your game is yours, and someone else opening the page does not touch it. A handful of games run at once (PTCG_MAX_SESSIONS); beyond that the page says the server is full rather than resetting a stranger's match. A game left untouched for 15 minutes is reclaimed.
• Your session lives in localStorage, so a reload returns you to your game.
• The first move of a game takes a few seconds: the opponent bundle is loading torch and its checkpoint in its own process.

Attribution

The engine in ptcg_engine/ is the competition's own package, included under the licence in its src/LICENSES/ directory so that the simulator runs; it is not open-source. Pokémon, card names, card text and card artwork are trademarks and copyright of Pokémon / Nintendo / Creatures / GAME FREAK. This is a non-commercial research demo. Everything else — the server, the front end — is my own work.