"Arcaea" (アーケア) is a three-dimensional music game developed by British game developer lowiro.

"Arcaea" (Rhythm Source) is a three-dimensional music game developed by lowiro. It is currently available on the iOS platform, Android platform and Nintendo Switch platform. The mobile version of the game was released on March 9, 2017, and the NS version was launched on May 18, 2021. The game is famous for its unique three-dimensional game mode, with a partner system and some partners have their own personal plots. The plot revolves around light and opposition.

The game has a World mode. You can progress by playing free or designated songs, and obtain tracks, partners and other elements. The game has a potential value system, which can calculate the information of the players' historical play tracks and obtain a value to measure their own strength.