Notice

Server maintenance will be conducted to provide a better gaming experience. Please note that the game will be inaccessible during this period.

🗓️ Schedule: Dec 17 (Wed) 05:30 ~ 07:30 (KST)

※ You may experience connection errors if you try to log in during maintenance. We will notify you once the maintenance is complete.

◈ New Song Update

Two new high-difficulty tracks have been added!

• The Last Witch SHD – Transin

• Flashing Lights SHD – Turbin Boyz

◈ New Features & Improvements

• Note Calibration Added

Fix slight timing discrepancies between the music and notes during gameplay.

How to set: [System setting] > [Game] > [Note Calibration ON/OFF]

• Touch Interference Issue Improved

Fixed an issue where judgment buttons overlapped or were triggered unintentionally.

• New Lobby One-Line Notice

Quickly check various game updates and event announcements directly from the lobby.

• Improved Results Screen

Your nickname and country flag will now be displayed on the results screen.

Verify and share your record more clearly with screenshots!

🎵Winter with O2Jam!

A festive celebration overflowing with the newly added Gem Money rewards awaits you!

From exclusive special events for Premium Membership and Prime Music Pass users

to the ultimate global competition that crowns the strongest rhythm champion—

Become the brightest player of the Winter Festival in O2Jam!

💎Gem Money can be used for future O2Jam Coins, merchandise,

and various O2Jam-related purchases and activities!

1️⃣ Overall Ranking Championship

Players who reach the Top 100 in the Overall Ranking during the event period

will receive the newly added Gem Rewards!

🎁 Event Rewards :

1st Place : 💎 300,000 Gems

2nd Place : 💎 200,000 Gems

3rd Place : 💎 100,000 Gems

Random Draw (3 players within Top 100) : 💎 30,000 Gems

2️⃣ Prime Music Challenge

Play all 17 high-quality Prime tracks, including the newly added Prime songs,

and aim for the top with your highest score!

Challenge yourself and earn even more Gems through your best performance!

🎵 Event Song List

-Prepare for Inversion - 胡桃

-Finalize - SneakySN

-UNIVERSE - zomay

-Dystopia SHD - mirakudo

-BADHAViTZ SHD - Reku Mochizuki

-Sailing Beyond the Fading Stars SHD - JAGAM

-BADHAViTZ - Reku Mochizuki

-Destiny Of Fate (XrX Ver.) - Studio Doma

-Feel The O2Jam (XrX Ver.) - BeautifulDay

-Until You Come Back (Origin) (XrX Ver.) - Impact Line

-BMP (XrX Ver.) - Studio Doma

-EgyptDJ (XrX Ver.) - Studio Doma

-Future Shock (XrX Ver.) - Studio Doma

-I Need Your Love (XrX Ver.) - Red Pulse

-Marvel Super Miracle (XrX Ver.) - Studio Doma

-MINUS 5 (XrX Ver.) - Studio Doma

-Painful Song (XrX Ver.) - BeautifulDay

🎁 Event Rewards :

1st Place : 💎 600,000 Gems + 1 O2Jam Premium T-shirt + 'Sailing Beyond the Fading Stars' Signed Poster

2nd Place : 💎 400,000 Gems + 'Sailing Beyond the Fading Stars' Signed Poster

3rd Place : 💎 200,000 Gems + 'Sailing Beyond the Fading Stars' Signed Poster

Random Draw (5 players selected from all participants) : 💎 100,000 Gems + 'Sailing Beyond the Fading Stars' Signed Poster

🗓️ Event Period : November 21 (Fri) ~ December 31 (Wed), 2025 (KST)

👑 Check Ranking

https://rank.o2jam.com/content/leaderboard-new/event/winter-festival/

⚠️ Notices :

-The shop where Gem Money can be used will be announced at a later date.

-Duplicate winnings by the same participant across different events are not allowed.

-Players found using macros, exploiting bugs, or engaging in any fraudulent activity will be excluded from winning.

-Event rewards may be changed with prior notice due to internal circumstances.

-Winners will be notified individually via the email provided during account registration.

-In the case of a tie, the winner will be determined by a random draw.

-Event songs may be added depending on future updates.

[Update] New Features & New Songs! Check Now!

◈ New Song Update

A total of 7 new songs have been added!

• Prepare for Inversion - 胡桃

• Finalize - SneakySN

• UNIVERSE - zomay

• Dystopia - mirakudo

• Summer Vacation! - AnchoV

• Dystopia SHD - mirakudo

• BADHAViTZ SHD - Reku Mochizuki

◈ New Feature Updates

- Gem Money System Introduced

You can now earn Gem rewards by playing songs!

Gems will be used in various upcoming content, so keep playing and collect them.

- Song List Sorting Feature Added

You can now sort the song list by level or title, allowing you to find the tracks you want more quickly and easily.

- Search Function Improvement

Search for artist names and song titles has been unified into a single search system.

This allows for a more intuitive and faster search experience.

- Official Channel Shortcut Buttons Added

Buttons have been added in the app to directly access the official Twitter(X) and YouTube channels. Check out the latest news and content even faster!

Your enthusiasm and support made this event a great success. 👻

🏆 Winners List

- 1st Place: Tsukihi

- 2nd Place: DJSuperNOVA

- Lucky Draw Winner: Dokka

🎁 Event Prize

O2Jam Limited Edition T-Shirt

The winners will receive a separate email requesting the information

needed for prize delivery. Please check your inbox and reply accordingly.

Once again, thank you to everyone who joined the event.

We look forward to bringing you even more fun and exciting events in the future!

Thank you.

Old Ranking and Play Data Migration

Recently, we updated social login and introduced a new overall ranking system.

Many players are enjoying the update, but we understand that some of you miss seeing your previous rankings and records.

To address this, we’ve prepared two pages:

one to view the previous rankings, and another to apply for play data migration from your old records.

Old Ranking: https://rank.o2jam.com/content/leaderboard/player/overall/

New Ranking: https://rank.o2jam.com/content/leaderboard-new/mastery/overall/

📥 Apply for Old Play Data Migration

Because the new login and ranking systems are quite different from the old ones,

automatic play data migration is not currently possible.

If you wish to migrate your previous play data, please apply through the link below.

We’ll process migrations sequentially after receiving your requests.

Application period: From October 18

Migration processing period: From October 23

It may take around one week to complete the migration after applying,

and the processing time may be longer depending on the number of requests.

➡ Apply here: https://rank.o2jam.com/member/data-migration/