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About C2Jam & Features

C2Jam is the modern evolution of the iconic rhythm game O2Jam (7K). Our 24/7 global server is 100% free and offers unrestricted access to the entire music library. We have rebuilt the platform from the ground up to ensure stability, competitive performance, and seamless 6-language support.

How to Join the Community

1. Create Your Account

2. Download Client

Get our next-generation installer.

3. Web Launcher

Use the \"Game Start\" button on the portal to launch directly from your browser.

Main Features

Cross-Platform Support Optimized graphics engine with native support for Windows 10, 11, and Linux, featuring exclusive AMD performance fixes.

Official Clan System Create your own Clan, recruit members, and compete in the Global Clan Ranking based on total team experience.

Mathematical Accuracy (Grades) Scoring based on pure rhythm precision. Combo breaks cap at Grade S+, reserving SSS+ only for absolute perfection.

Profiles & Gamer Cards Interactive UI displaying win rates, real-time stats, and linked social media accounts (Discord, YouTube, TikTok).

Song Ranking & V/S Mode Daily, Weekly, and Monthly leaderboards per song. Use V/S mode to challenge other players' records directly.

Smart Launcher Silent, automatic background updates ensuring you are always perfectly synchronized with the server.

Help Us Grow!

Join the next generation of C2Jamers. Stream your matches, invite friends, and help us expand this global rhythmic community. The music never stops—prove your world-class precision today!