The Gigas, summoned by the Anima in times of battle, are strategic and dynamic mercenaries that fight by player's side.

Through this system the game aims to create rich and immersive emotional experiences for the character and the Anima.

[4] In the summer of 2011, the game was localized to English and launched internationally, with no regional restrictions.

[5] On September 24, 2009, Kim Sa-rang, a 3-month-old Korean child, died from malnutrition after both her parents spent hours each day in an internet cafe playing Prius Online in order to farm gold to sell for real money.

[6] The incident was featured in the 2014 Sundance Film Festival-debuted documentary Love Child.