From the CastleWeb/CastleOS BROWSER team: CastleWeb for Windows XP servers have just shut down forever. We reccomend upgrading to CastleOS SNOW CONE.

Support ends in 16 October 2026. Upgrading to CastleOS SNOW CONE is the best choice right now, if you love advanced systems and customization, and saved progress

Support for WindowsXP Simulator officially comes to an end in July 7 2026 while patches stop November 22 2026.

You can now upgrade to Windows° 8.1 Simulator via the upgrade app ○2026 (KNIGHTER) WINDOWS XP PROFFESIONAL X64 SIMULATOR

You can now upgrade to Vista Simulator with the Upgrade app ©Windows XP Simulator 2026

Bug fix update - Fixed bug in Castle extension where touching ANYTHING instead of the wall could make you lose