diff --git a/package.json b/package.json
index 3b6de9d..b2920de 100644
--- a/package.json
+++ b/package.json
@@ -22,6 +22,7 @@
     "verify:flow": "node scripts/verify-flow.mjs",
     "verify:save-flow": "node scripts/verify-save-retry-flow.mjs",
     "verify:release": "node scripts/verify-release-candidate.mjs",
+    "verify:public-deploy": "node scripts/verify-public-deploy.mjs",
     "qa:representative": "node scripts/qa-representative-battles.mjs",
     "deploy:nas": "powershell -NoProfile -ExecutionPolicy Bypass -File scripts/deploy-nas.ps1 -Build"
   },
diff --git a/scripts/verify-public-deploy.mjs b/scripts/verify-public-deploy.mjs
new file mode 100644
index 0000000..10b04ed
--- /dev/null
+++ b/scripts/verify-public-deploy.mjs
@@ -0,0 +1,75 @@
+import { mkdirSync } from 'node:fs';
+import { dirname } from 'node:path';
+import { chromium } from 'playwright';
+
+const targetUrl = withQaParams(process.env.PUBLIC_QA_URL ?? 'https://comtropy.synology.me/heros_web/');
+const screenshotPath = process.env.PUBLIC_QA_SCREENSHOT ?? 'dist/public-deploy-qa.png';
+const relevantLogPattern = /asset|audio|cannot|failed|map|missing|portrait|sprite|story|texture|unit/i;
+
+mkdirSync(dirname(screenshotPath), { recursive: true });
+
+const browser = await chromium.launch({ headless: true });
+
+try {
+  const page = await browser.newPage({ viewport: { width: 1280, height: 720 } });
+  const consoleMessages = [];
+  page.on('console', (message) => {
+    consoleMessages.push({ type: message.type(), text: message.text() });
+  });
+
+  await page.goto(targetUrl, { waitUntil: 'domcontentloaded', timeout: 90000 });
+  await page.waitForFunction(() => document.querySelector('canvas') !== null, undefined, { timeout: 90000 });
+  await page.waitForFunction(() => {
+    const canvas = document.querySelector('canvas');
+    return Boolean(canvas && canvas.width >= 960 && canvas.height >= 540);
+  }, undefined, { timeout: 90000 });
+  await page.waitForTimeout(3000);
+  await page.screenshot({ path: screenshotPath, fullPage: true });
+
+  const state = await page.evaluate(() => {
+    const canvas = document.querySelector('canvas');
+    return {
+      title: document.title,
+      canvasCount: document.querySelectorAll('canvas').length,
+      canvas: canvas
+        ? {
+            width: canvas.width,
+            height: canvas.height,
+            clientWidth: canvas.clientWidth,
+            clientHeight: canvas.clientHeight
+          }
+        : undefined
+    };
+  });
+
+  assert(state.title?.trim().length > 0, `Expected deployed page title: ${JSON.stringify(state)}`);
+  assert(state.canvasCount === 1, `Expected exactly one game canvas: ${JSON.stringify(state)}`);
+  assert(state.canvas?.width >= 960 && state.canvas?.height >= 540, `Expected desktop-size game canvas: ${JSON.stringify(state)}`);
+
+  const relevantLogs = consoleMessages.filter(
+    (message) => message.type === 'error' || (isWarning(message.type) && relevantLogPattern.test(message.text))
+  );
+  assert(relevantLogs.length === 0, `Unexpected public deploy console issues: ${JSON.stringify(relevantLogs, null, 2)}`);
+
+  console.log(`Verified public deploy at ${targetUrl}`);
+  console.log(`Captured ${screenshotPath}`);
+} finally {
+  await browser.close();
+}
+
+function withQaParams(url) {
+  const parsed = new URL(url);
+  parsed.searchParams.set('renderer', 'canvas');
+  parsed.searchParams.set('v', process.env.PUBLIC_QA_VERSION ?? String(Date.now()));
+  return parsed.toString();
+}
+
+function isWarning(type) {
+  return type === 'warning' || type === 'warn';
+}
+
+function assert(condition, message) {
+  if (!condition) {
+    throw new Error(message);
+  }
+}