Ultrastar

Ultrastar is a popular open-source karaoke game that allows players to sing along to a vast library of songs. Originally developed by the German company RADON GmbH, the game has since transitioned to a community-driven project. Ultrastar emulates the experience of arcade karaoke machines, displaying song lyrics and a scrolling pitch bar that indicates the player's performance. Players use a microphone to sing, and the game scores their accuracy based on how well they match the pitch and rhythm of the original song.

The game supports a wide range of music formats, with its primary format being `.zip` files containing audio, video, lyrics, and metadata. The Ultrastar community actively contributes to the song library, creating and sharing new song packs. This has led to an extensive and diverse collection of available music spanning various genres and eras. Ultrastar is available on multiple platforms, including Windows, macOS, and Linux, making it accessible to a broad audience. Its ease of use and the communal aspect of sharing songs have cemented its status as a go-to choice for home karaoke enthusiasts. The game is often used for parties and social gatherings.