Ghost Online also known as Ghost Soul is a free fast paced action-based sidescrolling, massively multiplayer online role-playing game that is currently released in South Korea, Japanese, Chinese, Taiwanese, and Malaysian-English (beta). It is currently in development for the Global-English version by Netgame which is a division of MGame USA Inc.

This game is very similar to MapleStory except it includes additional gameplay elements such as Running, Super Jumping, and PVP.