把遊戲做好，
直接在瀏覽器玩。

my-game.zip
├─ index.html
├─ game.js
├─ game.wasm
└─ assets/
   ├─ sprites.webp
   └─ music.ogg

# Run this inside the exported build folder.
py -m http.server 8080

# Then open http://localhost:8080 and inspect Console + Network.

const platform = await OpenGames.ready();
const locale = platform.locale; // "zh-Hant", "en", "ja"…
const region = platform.region; // "TW", "JP", "US" or "XX"

loadTranslations(locale);
showRegionalNotice(region);

const loaded = await OpenGames.saves.load("campaign");
let version = loaded.save?.version ?? 0;
let state = loaded.save?.data ?? { level: 1, coins: 0 };

try {
  const written = await OpenGames.saves.write(state, {
    slot: "campaign",
    version
  });
  version = written.save.version;
} catch (error) {
  if (error.message === "VERSION_CONFLICT") {
    // Reload and let the player choose which progress to keep.
  }
}

// Public co-op room
const created = await OpenGames.multiplayer.create({
  visibility: "public",
  mode: "co-op"
});
showInviteCode(created.room.room_code);

// Password-protected team room
await OpenGames.multiplayer.create({
  visibility: "password",
  password: playerEnteredPassword,
  mode: "teams",
  teamCount: 2
});

const { rooms } = await OpenGames.multiplayer.list();
await OpenGames.multiplayer.join(inviteCode, passwordOrNull);

const stopMessages = OpenGames.on("multiplayer.message", ({ payload }) => {
  applyRemoteMessage(payload);
});

const stopPresence = OpenGames.on("multiplayer.presence", ({ playerCount }) => {
  updateLobbyCount(playerCount);
});

await OpenGames.multiplayer.send({
  type: "input",
  frame: 1024,
  buttons: ["jump"]
});

// Call the returned functions when your game no longer needs the listeners.
stopMessages();
stopPresence();

// Only the verified creator can create a persistent creator room.
await OpenGames.multiplayer.create({
  creatorManaged: true,
  persistent: true,
  visibility: "public",
  mode: "shared"
});

// Available only when the dashboard policy is "One game-wide world".
await OpenGames.multiplayer.joinGlobal("shared");