Seven Knights Idle Adventure and Overlord team up in a thrilling new crossover event! This exciting update introduces three new playable characters from the popular anime, alongside a host of special events and challenges.

The collaboration features Ainz Ooal Gown, Albedo, and Shalltear Bloodfallen as legendary heroes, joined by the adorable Hamusuke. For those eager to assess their power, a Seven Knights Idle Adventure tier list is available online.

To maximize your rewards, participate in all the events running until the New Year. The Overlord Challenger Pass offers a path to unlock Albedo and Shalltear, while the Special Check-in Event provides daily rewards simply for logging in. These rewards include Ainz, Overlord Hero Selection Tickets, and more.

A new event dungeon, set in the Re-Estize Kingdom, challenges players to defeat Azuth Aindra, leader of Red Drop. Conquering this dungeon yields event currency, redeemable for Overlord Hero Summon Tickets, Hamusuke, and Shalltear’s exclusive "Bloody Valkyrie" costume. Don't miss this limited-time collaboration!