Privacy Policy

Last updated: November 8, 2026

What we collect

undertaleyellow.org has no accounts, forms or comments and does not run advertising. Our hosting provider, Cloudflare, processes standard technical data such as IP address, browser type and request time to deliver and protect the site. We use Google Tag Manager, which may load Google Analytics; Google can set cookies and collect usage data such as pages visited, device type and approximate location. See how Google uses data from sites that use its services.

Game saves

The game only loads after you press Play. Its files are served from our own domain. Your save files and settings are stored locally in your browser (IndexedDB) and are never uploaded to us. You can delete them by clearing this site's data in your browser.

External links

Links to Game Jolt, Wikipedia and other sites are governed by those sites' own privacy policies.

Children

Undertale Yellow contains cartoon and fantasy violence. Parents should decide whether it suits younger players.

Contact

Questions: hello@undertaleyellow.org