Diablo II: Resurrected features an official offline mode that requires initial authentication and a recurring check-in every 30 days via Battle.net. While unofficial "cracks" exist to bypass this, they carry significant security risks and prevent access to game updates. For detailed information on the official offline capabilities and restrictions, visit the Blizzard News launch guide .
Whats the difference between Online and Offline? - Blizzard Forums Diablo II ressuscitado [Crack offline para v1.0...