Seoul, South Korea, Dec. 26, 2025 (GLOBE NEWSWIRE) -- GRAVITY Co., Ltd. (NasdaqGM: GRVY) (“Gravity” or “Company”), a developer and publisher of online and mobile games, announced that Ragnarok: Rebirth (Chinese Title: 仙境传说：重生), a 3D MMORPG Mobile game, was officially launched in China on December 25, 2025. Ragnarok: Rebirth retains the classic essence of Ragnarok Online while introducing 3D graphic,  screen convert system and features for integrated exchange system. The game has received an ISBN code by Chi ...