KaraFun is not available for Linux but there are a few alternatives that runs on Linux with similar functionality. The most popular Linux alternative is 
UltraStar Deluxe, which is both free and Open Source. If that doesn't suit you, our users have ranked 21 alternatives to KaraFun and three of them are available for Linux so hopefully you can find a suitable replacement. Other interesting Linux alternatives to KaraFun are 
Midica (Free, Open Source) and 
OpenKJ (Free, Open Source).
Turn your PC into an interactive karaoke machine with the KaraFun free karaoke software for Windows. If you're looking for more info about KaraFun like screenshots, reviews and comments you should visit our info page about it. Below you find the best alternatives.
UltraStar Deluxe is a free and open source karaoke game inspired by the Singstar game available on the Playstation. It allows players to sing along with music using microphones in order to score points. It also allows users to create their own songs and sing them.
MIDI and Karaoke player and file analyzer and interpreter for MidicaPL music programming language.
Open source karaoke hosting software designed to be used by professional karaoke hosts. Supports CDG and common video files. Features regular singer tracking, web based song submissions, automated performance recording, integrated break music player that automatically fades in and out when karaoke songs start and stop, end of karaoke track silence detection, a ticker on the CDG display output, and more.
