https://wccftech.com/lost-ark-debuts-big-with-532k-concurrent-users-on-early-access-day/

The long-anticipated Western debut of Lost Ark took place via Steam yesterday with record-breaking numbers.

Lost Ark, a fusion between Diablo-like hack and slash gameplay with MMORPG elements and content, is developed by Tripod Studio and Smilegate RPG. Originally unveiled eight years ago, it took a long time to make, eventually launching in South Korea at the very end of 2019 after a year of the open beta phase. The next steps were the Russian and Japanese releases, though Western fans were losing hope before Amazon Games announced a deal with Smilegate RPG.