diff --git a/package-lock.json b/package-lock.json
index 96af45f..4fda962 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -7,6 +7,7 @@
       "devDependencies": {
         "@playwright/test": "^1.20.1",
         "cross-env": "^7.0.3",
+        "lowdb": "^3.0.0",
         "playwright": "^1.20.1",
         "puppeteer-extra-plugin-stealth": "^2.9.0"
       }
@@ -2031,6 +2032,21 @@
         "node": ">=8"
       }
     },
+    "node_modules/lowdb": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/lowdb/-/lowdb-3.0.0.tgz",
+      "integrity": "sha512-9KZRulmIcU8fZuWiaM0d5e2/nPnrFyXkeXVpqT+MJS+vgbgOf1EbtvgQmba8HwUFgDl1oeZR6XqEJnkJmQdKmg==",
+      "dev": true,
+      "dependencies": {
+        "steno": "^2.1.0"
+      },
+      "engines": {
+        "node": "^12.20.0 || ^14.13.1 || >=16.0.0"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/typicode"
+      }
+    },
     "node_modules/merge-deep": {
       "version": "3.0.3",
       "dev": true,
@@ -2759,6 +2775,18 @@
         "node": ">=8"
       }
     },
+    "node_modules/steno": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/steno/-/steno-2.1.0.tgz",
+      "integrity": "sha512-mauOsiaqTNGFkWqIfwcm3y/fq+qKKaIWf1vf3ocOuTdco9XoHCO2AGF1gFYXuZFSWuP38Q8LBHBGJv2KnJSXyA==",
+      "dev": true,
+      "engines": {
+        "node": "^14.13.1 || >=16.0.0"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/typicode"
+      }
+    },
     "node_modules/string_decoder": {
       "version": "1.3.0",
       "dev": true,
@@ -4323,6 +4351,15 @@
         "p-locate": "^4.1.0"
       }
     },
+    "lowdb": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/lowdb/-/lowdb-3.0.0.tgz",
+      "integrity": "sha512-9KZRulmIcU8fZuWiaM0d5e2/nPnrFyXkeXVpqT+MJS+vgbgOf1EbtvgQmba8HwUFgDl1oeZR6XqEJnkJmQdKmg==",
+      "dev": true,
+      "requires": {
+        "steno": "^2.1.0"
+      }
+    },
     "merge-deep": {
       "version": "3.0.3",
       "dev": true,
@@ -4813,6 +4850,12 @@
         }
       }
     },
+    "steno": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/steno/-/steno-2.1.0.tgz",
+      "integrity": "sha512-mauOsiaqTNGFkWqIfwcm3y/fq+qKKaIWf1vf3ocOuTdco9XoHCO2AGF1gFYXuZFSWuP38Q8LBHBGJv2KnJSXyA==",
+      "dev": true
+    },
     "string_decoder": {
       "version": "1.3.0",
       "dev": true,
diff --git a/package.json b/package.json
index 3c301fd..8d24498 100644
--- a/package.json
+++ b/package.json
@@ -8,8 +8,9 @@
   "devDependencies": {
     "@playwright/test": "^1.20.1",
     "cross-env": "^7.0.3",
+    "lowdb": "^3.0.0",
     "playwright": "^1.20.1",
     "puppeteer-extra-plugin-stealth": "^2.9.0"
   },
   "type": "module"
-}
\ No newline at end of file
+}
diff --git a/prime-gaming.js b/prime-gaming.js
index 91caa17..ff114f2 100644
--- a/prime-gaming.js
+++ b/prime-gaming.js
@@ -1,6 +1,6 @@
 import { chromium } from 'playwright'; // stealth plugin needs no outdated playwright-extra
 import path from 'path';
-import { dirs, stealth } from './util.js';
+import { dirs, jsonDb, datetime, stealth } from './util.js';
 
 const debug = process.env.PWDEBUG == '1'; // runs headful and opens https://playwright.dev/docs/inspector
 const show = process.argv.includes('show', 2);
@@ -10,6 +10,17 @@ const headless = !debug && !show;
 const URL_CLAIM = 'https://gaming.amazon.com/home';
 const TIMEOUT = 20 * 1000; // 20s, default is 30s
 
+const db = await jsonDb('prime-gaming.json');
+db.data ||= { claimed: [], runs: [] };
+const run = {
+  startTime: datetime(),
+  endTime: null,
+  n_internal: null, // unclaimed games at beginning
+  c_internal: 0,    // claimed games at end
+  n_external: null,
+  c_external: 0,
+};
+
 // https://playwright.dev/docs/auth#multi-factor-authentication
 const context = await chromium.launchPersistentContext(dirs.browser, {
   // channel: 'chrome', // https://playwright.dev/docs/browsers#google-chrome--microsoft-edge, chrome will not work on arm64 linux, only chromium which is the default
@@ -25,13 +36,14 @@ if (!debug) context.setDefaultTimeout(TIMEOUT);
 
 // const page = /* context.pages().length ? context.pages[0] : */ await context.newPage();
 const page = context.pages()[0];
-console.log('userAgent:', await page.evaluate(() => navigator.userAgent));
+console.debug('userAgent:', await page.evaluate(() => navigator.userAgent));
 
 const clickIfExists = async selector => {
   if (await page.locator(selector).count() > 0)
     await page.click(selector);
 };
 
+try {
 await page.goto(URL_CLAIM, {waitUntil: 'domcontentloaded'}); // default 'load' takes forever
 // need to wait for some elements to exist before checking if signed in or accepting cookies:
 await Promise.any(['button:has-text("Sign in")', '[data-a-target="user-dropdown-first-name-text"]'].map(s => page.waitForSelector(s)));
@@ -54,8 +66,8 @@ const games_sel = 'div[data-a-target="offer-list-FGWP_FULL"]';
 await page.waitForSelector(games_sel);
 console.log('Number of already claimed games (total):', await page.locator(`${games_sel} p:has-text("Collected")`).count());
 const game_sel = `${games_sel} [data-a-target="item-card"]:has-text("Claim game")`;
-const n = await page.locator(game_sel).count();
-console.log('Number of free unclaimed games (Prime Gaming):', n);
+run.n_internal = await page.locator(game_sel).count();
+console.log('Number of free unclaimed games (Prime Gaming):', run.n_internal);
 const games = await page.$$(game_sel);
 // for (let i=1; i<=n; i++) {
 for (const card of games) {
@@ -64,6 +76,8 @@ for (const card of games) {
   const title = await (await card.$('.item-card-details__body__primary')).innerText();
   console.log('Current free game:', title);
   await (await card.$('button:has-text("Claim game")')).click();
+  db.data.claimed.push({title, time: datetime(), store: 'internal'});
+  run.c_internal++;
   // const img = await (await card.$('img.tw-image')).getAttribute('src');
   // console.log('Image:', img);
   const p = path.resolve(dirs.screenshots, 'prime-gaming', 'internal', `${title.replace(/[^a-z0-9]/gi, '_')}.png`);
@@ -72,9 +86,11 @@ for (const card of games) {
 }
 // claim games in linked stores. Origin: key, Epic Games Store: linked
 {
+  let n;
   const game_sel = `${games_sel} [data-a-target="item-card"]:has(p:text-is("Claim"))`;
   do {
-    let n = await page.locator(game_sel).count();
+    n = await page.locator(game_sel).count();
+    run.n_external ||= n;
     console.log('Number of free unclaimed games (external stores):', n);
     const card = await page.$(game_sel);
     if (!card) break;
@@ -82,35 +98,52 @@ for (const card of games) {
     console.log('Current free game:', title);
     await (await card.$('text=Claim')).click();
     // await page.waitForNavigation();
-    await page.click('button:has-text("Claim now")'); // waits for navigation
+    await Promise.any([page.click('button:has-text("Claim now")'), page.click('button:has-text("Complete Claim")')]); // waits for navigation
     const store_text = await (await page.$('[data-a-target="hero-header-subtitle"]')).innerText();
     // FULL GAME FOR PC ON: GOG.COM, ORIGIN, LEGACY GAMES, EPIC GAMES
     // 3 Full PC Games on Legacy Games
     const store = store_text.toLowerCase().replace(/.* on /, '');
     console.log('External store:', store);
-    // print code if external store is not connected
-    const redeem = {
-      'origin': 'https://www.origin.com/redeem',
-      'gog.com': 'https://www.gog.com/redeem',
-      'legacy games': 'https://www.legacygames.com/primedeal',
-    };
-    if (store in redeem) {
-      const code = await page.inputValue('input[type="text"]');
-      console.log('Code to redeem game:', code);
-      if (store == 'legacy games') { // may be different URL like https://legacygames.com/primeday/puzzleoftheyear/
-        redeem[store] = await (await page.$('li:has-text("Click here") a')).getAttribute('href');
+    if(await page.locator('div:has-text("Link game account")').count()) {
+      console.error('Account linking is required to claim this offer!');
+    } else {
+      // print code if there is one
+      const redeem = {
+        // 'origin': 'https://www.origin.com/redeem', // TODO still needed or now only via account linking?
+        'gog.com': 'https://www.gog.com/redeem',
+        'legacy games': 'https://www.legacygames.com/primedeal',
+      };
+      let code;
+      if (store in redeem) { // did not work for linked origin: && !await page.locator('div:has-text("Successfully Claimed")').count()
+        code = await page.inputValue('input[type="text"]');
+        console.log('Code to redeem game:', code);
+        if (store == 'legacy games') { // may be different URL like https://legacygames.com/primeday/puzzleoftheyear/
+          redeem[store] = await (await page.$('li:has-text("Click here") a')).getAttribute('href');
+        }
+        console.log('URL to redeem game:', redeem[store]);
       }
-      console.log('URL to redeem game:', redeem[store]);
+      db.data.claimed.push({title, time: datetime(), store, code});
+      // save screenshot of potential code just in case
+      const p = path.resolve(dirs.screenshots, 'prime-gaming', 'external', `${title.replace(/[^a-z0-9]/gi, '_')}.png`);
+      await page.screenshot({ path: p, fullPage: true });
+      console.info('Saved a screenshot of page to', p);
+      run.c_external++;
     }
-    // save screenshot of potential code just in case
-    const p = path.resolve(dirs.screenshots, 'prime-gaming', 'external', `${title.replace(/[^a-z0-9]/gi, '_')}.png`);
-    await page.screenshot({ path: p, fullPage: true });
-    console.info('Saved a screenshot of page to', p);
     // await page.pause();
     await page.goto(URL_CLAIM, {waitUntil: 'domcontentloaded'});
     await page.click('button[data-type="Game"]');
   } while (n);
-  const p = path.resolve(dirs.screenshots, 'prime-gaming', `${new Date().toISOString()}.png`);
+  const p = path.resolve(dirs.screenshots, 'prime-gaming', `${datetime()}.png`);
   await page.screenshot({ path: p, fullPage: true });
 }
-await context.close();
+} catch(error) {
+  console.error(error);
+  run.error = error.toString();
+} finally {
+  // write out json db
+  run.endTime = datetime();
+  db.data.runs.push(run);
+  await db.write(); // TODO try-finally to always write out any updates
+
+  await context.close();
+}
diff --git a/util.js b/util.js
index 9c6d48e..2db70d2 100644
--- a/util.js
+++ b/util.js
@@ -7,10 +7,20 @@ const __dirname = path.dirname(__filename);
 // explicit object instead of Object.fromEntries since the built-in type would loose the keys, better type: https://dev.to/svehla/typescript-object-fromentries-389c
 const dataDir = s => path.resolve(__dirname, 'data', s);
 export const dirs = {
+  data: dataDir('.'),
   browser: dataDir('browser'),
   screenshots: dataDir('screenshots'),
 };
 
+import { Low, JSONFile } from 'lowdb';
+export const jsonDb = async file => {
+  const db = new Low(new JSONFile(dataDir(file)));
+  await db.read();
+  return db;
+}
+
+export const datetime = (d = new Date()) => d.toISOString();
+
 // stealth with playwright: https://github.com/berstend/puppeteer-extra/issues/454#issuecomment-917437212
 const newStealthContext = async (browser, contextOptions = {}, debug = false) => {
   if (!debug) { // only need to fix userAgent in headless mode