What this site stores
The progression checklist stores checkbox state in your browser using localStorage. That data is not sent to this static site.
Analytics
Google Analytics 4 (measurement ID G-5HLJKR6LMX) records anonymous page views. No advertising network is enabled on this source package.
Server logs
The hosting provider may process standard request logs such as IP address, user agent and requested URL for delivery, security and abuse prevention.
External links
Links to Steam and other sources are external sites with their own privacy practices.