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Relive the past by playing the new version of the beloved rhythm game from 2003!



From the iconic songs to customizing your game UI and new tracks available to play!
O2 Jam is now available on Steam~!


Over 100+ songs!
Choose from plethora of new or classic songs and the number of keys. Set the difficulty from Easy to Hard.
Unlock iconic classics like “Fly Magpie”, “V3”, “Festival of Ghost 2” and many more!


Key Setting:
You can set the difficulty and song speed, as well as set the hotkeys of your keyboard.
It also provides a variety of gameplay experience such as challenges and competitions within the game.


Ranking System
Be the very best in the world of O2 Jam! Compete with players all around the world in the ranking system. Get amazing rewards by the end of the season!

Stay tuned for more future updates and free content.