The core of a music game is "Music" itself.

O2Jam: The Beginning is the legendary rhythm game series chosen by 200 million users worldwide over the past 22 years. Experience high-quality original tracks produced exclusively for rhythm games and an overwhelming note impact right here on Steam with the official O2Jam rhythm game.

Key Features

• Optimized Play Environment & Customization

  Wide Difficulty Range: Level design that satisfies everyone from beginners to hardcore maniacs.

  Various Key Modes: Supports 3K, 4K, 5K, and more.

  Flexible Key Settings: Supports a key change system tailored to player convenience.

• Global Comprehensive Ranking System

  Compete with users worldwide and challenge for the TOP class through national and global rankings.

• Sequential Expansion of All O2Jam Series Songs

  Perfectly ported O2Jam masterpieces like 'V3', 'The Festival of Ghost', and 'A Christmas Memory (Origin)'!

  Includes songs by world-class rhythm game artists such as BeautifulDay, Brandy, Studio Doma, SHK, Pory, S.I.D Sound, and Memme.

  New songs from rising rhythm game stars are constantly updated, with the library expanding continuously until the official release.

Main Song Update Schedule

- First Update: June 24, 2026 (KST) - (Total songs after update: 257 songs)

• Milk Chocolate - BeautifulDay

• Recollection - SHK

• Visual Dream - Brandy

• Earth Quake - KAZE.o2SE

• Painful Song - BeautifulDay

• Feel The O2Jam - BeautifulDay

• Dragon Eyes - BeautifulDay

• Feel The O2Jam (Reborn) - TAK

• R3 - Kevin.o2SE

• Electro Fantasy (Origin) - BeautifulDay

• Vivaldi In Hiphop - BeautifulDay

• Storm Over The Ocean - KAZE.o2SE

• Loving You - Pory

• ToHeart - Studio Doma

• Paradise - Studio Doma

• Placebo Dying - M2U

• Tender Voice - Max

• Driving Lazy Bee (Analog) - Glasslake

• Pine Nut - Doin

• Vacation Song - BeautifulDay

• ShowDown - ampstyle

• I Need Your Love (SRS Ver.) - Red Pulse

• The Way - Glasslake

• I Love Dance - Teddy bear

• Invite From Lamian - Bunkcat

• Until You Come Back (Reborn) - DR.J

• Mail Rider - Studio Doma

• Why War - Studio Doma

• Reincarnation - nao.paradigm

• End Of Fight (Round 2) - Kaz & Kevin

• Please Be My Lover-Lounge Mix - Studio Doma

- Second Update: During July 2026 (KST) - (Total songs after update: 287 songs)

• Kan Kan - BeautifulDay

• Go Hell - Red Pulse

• Identity Part 5 - SHK

• Duel - Dr.Flower Shirts

• Moon Madness - nao.paradigm

• Fiesta - BeautifulDay

• White Christmas - BeautifulDay

• K.M.T - r300k

• HorangPungruewga - Sang Rok Su

• 10% - Pory

• I Love U Forever - Park Joon Yong

• Drawing In My Heart - HiTaZ

• V3 II (SRS(●)Ver.) (feat.Kim SeHwang, KoN) - Studio Doma

• Tree - Studio Doma

• Moonlight 3rd Movement - Jinny

• Plasma Gun - Memme

• Distance (Memme Cosmic Mix) - Memme

• William Tell - BeautifulDay

• Plasma Gun (Clean Ver.) - Memme

• Please Be My Lover (Rock Ver.) - Studio Doma

• Uber 6 - PrimeMIX

• I Need Your Love - Red Pulse

• POWER BEAT - Studio Doma

• Uranium - Memme

• Jinglebell Mega Mix - nao.paradigm

• Hyper Speed Carol Mix - SHK

• Sweet Night - Studio Doma

• Hades In The Heaven - Gentle Stick

• The Mountain King - Red Pulse

• Waiting For Love - BeautifulDay

- Third Update: During August 2026 (KST) - (Total songs after update: 317 songs)

• The Festival of Ghost 2 (Sneak) - Brandy

• Guardian Angel - BeautifulDay

• V3 II (feat.Kim SeHwang, KoN) - Studio Doma

• Toccata & Fuga - BeautifulDay

• Identity Part 2 (Analog) - SHK

• The Flight of the Bumble-Bee - Jinny

• Temptation - M2U

• Driving Lazy Bee - Glasslake

• Kan Kan (Reborn) - Mikel

• Until You Come Back (Origin) - Impact Line

• Jul - DR.Flower Shirts

• Sonata(O2 Version) - Penny

• Star Stream - r300k

• Electro Paradigm - Studio Doma

• Symphony From The Rock World - Rock.o2SE

• Volcano - KAZE.o2SE

• Vivaldi-Winter - Everfree.O2SE

• Over the Horizon - Yamajet

• Unison System - Memme

• Exam Hell (Final Round) - Studio Doma

• Please Be My Lover (Pe2ny Ver.) - Studio Doma

• R3 (Analog) - Kevin.o2SE

• Earth Quake (Analog) - KAZE.o2SE

• Poison - Red Pulse

• Obelisque (Analog) - ESTi

• In My Fantasia - Red Pulse

• Extreme Fantasy - Memme

• Lord Of Nightmare - Everfree.o2SE

• Headless Chicken - r300k

• Up N Down!(O2Mix) - Dr.Flower Shirts