ROSE Online, or Rush On Seven Episodes Online is a Massively Multiplayer Online Roleplaying Game (MMORPG) previously published by Korean company Gravity Corporation and developed by its subsidiary, Triggersoft. The game was originally pay to play, but Triggersoft stopped developing the game in 2007, and the rights of ROSE Online were sold to several different companies which now develop and publish their own free to play versions of the game. Gravity Interactive develops and publishes a version of the game known as naROSE for 3 North American and 40 European countries.