Pearl Abyss announced today that the long-awaited co-op dungeon Atoraxxion has arrived in&nbsp;<i>Black Desert SEA.&nbsp;</i>Adventurers can now discover a massive ancient stronghold and engage in powerful battles with others.&nbsp;. Atoraxxion, built by the Last Ancient "Sage," is the first of such cooperative content, and can be challenged by up to 5 Adventurers. The new dungeon offers the inherent MMORPG pleasures of teamwork alongside the unique action of&nbsp;<i>Black Desert</i>.&nbsp;&nbsp