That is all our game telemetry collects, with the build number: a random player id made on this device, not tied to you; play events (runs, results, Stardust, lessons, ads, errors); the device type (screen size, touch or mouse, browser). No names, emails or contacts. It goes to our own studio server, whose logs hold IP addresses; we never sell or share it. Your progress is saved on this device and, on CrazyGames, in your CrazyGames save, which follows the CrazyGames privacy policy.