The autosave from kong is stored in your browser, in IndexedDB. Here are the general steps to extract it and save to a file.

  1. Go to Kongregate
  2. Open web dev tools - typically done by pressing F12.
  3. In the inspector or html elements tab, you need to insert an iframe into the body somewhere.

    <iframe src="https://game287709.konggames.com/"></iframe>

  4. Go to the console tab and switch its context to that iframe. This will probably be different per browser. Look for something that says TOP or something about targeting an iframe.
  5. Paste this code into the console and press enter.
    const req = indexedDB.open('/idbfs');
    req.onsuccess = () => {
        const db = req.result;
        const store = db.transaction('FILE_DATA', 'readonly').objectStore('FILE_DATA');
        const cursorReq = store.openCursor();
        cursorReq.onsuccess = e => {
            const cursor = e.target.result;
            if (!cursor) return;
            if (cursor.key.endsWith('/NGUSave.txt')) {
                const contents = cursor.value.contents;
                const bytes = new Uint8Array(Object.values(contents));
                const blob = new Blob([bytes]);
                const a = document.createElement('a');
                a.href = URL.createObjectURL(blob);
                a.download = 'NGUSave.txt';
                a.click();
            } else {
                cursor.continue();
            }
        };
    };
                    
  6. Save the file and load it into either the copy from kong or the steam version.