Privacy & local storage

Your practice collection and pack timer are saved in your browser. You can use the tools without linking a game account.

What stays on your device

The simulator stores your pulls and rarity totals in local storage. The timer stores its deadline. Trade worksheet entries last for the current page session. You can export your collection before using Reset, clear the timer separately, or clear this site's data in your browser.

Site measurement and advertising

We use Google Analytics 4 through Google Tag Manager on the home, Card Atlas, Player Guide, How to Play, and Codes pages to understand which tools and guides people visit. Google may process page URLs, device and browser information, and cookie identifiers. Our simulator does not send your saved collection or trade entries as analytics events.

The homepage and How to Play guide load Google AdSense. Google and its advertising partners may use cookies and similar technologies to deliver and measure ads. You can manage cookies in your browser and control personalized advertising in My Ad Center. Learn how Google uses information from partner sites.

The homepage also displays ads from Adsterra. Loading an ad shares connection and browser information with its advertising services, which may use cookies to deliver and measure ads.

Hosting and card images

Cloudflare serves this site and processes connection information such as IP addresses and requested URLs. Fonts, card data, and most thumbnails are served from our domain. A small number of card images load from YouTube's thumbnail service, which receives the information needed to deliver the image.

Contact

For privacy questions or corrections, email support@extremedemongacha.app. If you contact us, we use your email address and message to respond.