HARCA is a rhythm game platform where players can upload their original music and charts and enjoy contents uploaded by other players. Features Players can freely upload their own music to the game. By creating and sharing charts for the uploaded music, they can make their songs playable as rhythm game tracks. Players can add their own charts to songs that have been uploaded, opening up a new form of production through "chart creation." On the HARCA website, music and chart rankings are updated daily. Find popular songs to play and enjoy. The HARCA project has created 17 official charts, each with three difficulty levels to help users improve their skills. You can also compete with top players around the world by using the leaderboard. Only five keys are needed to play, making it simple for anyone with a PC to dive into an accessible yet profound gameplay experience.