[1] Open beta began in South Korea on September 11, 2013, in China on October 31, 2014, and in Western territories on May 28, 2015.

Nearly a year later, publisher Kakao Games relaunched Echo of Soul in South Korea.

Players take control of adventurers, called Soulkeepers, who are tasked by the gods of the world to combat evil.

The combat system in Echo of Soul does not follow the standard "trinity" in MMOs consisting of tanks, healers, and DPS classes.

The Gods win the war, but the corrupted blood of Ymir the Giant King spread and threatened to contaminate the World Tree, the source of all creation.