Our mobile games show AdMob ads from Google - these collect some data about your device and what you do with the device. Here is Google's explanation of what they collect. We've disabled behavioral advertising in EEA and UK to comply with GDPR.
Our games do NOT require Internet connection to work.
Check out PC/Mac/Linux versions of our games - they are free and don't have any ads. You can support us on Patreon. Thanks!