Linux only (for now): If you love karaoke or really get into music-based games like Rock Band and Guitar Hero, then you’ll love Performous. It’s an open-source band game that’s perfect for your next party or get-together.
Performous is a free computer-based game for one or more players. Players compete against each other to see who can score the most points with the game system as your judge. It’s got a practice mode so you can secretly get a head start on your friends before you get together to play, and auto-detects and works with Rock Band or Guitar Hero instruments you hook up.
Performous is more than just a game, though. It’s also a teaching tool you can use anytime to help improve your singing voice. It accurately detects your pitch even in noisy surroundings so you know when you’re hitting the right notes and displays musical notes onscreen to help keep you on track.
You can pick up several free songs from the web site, or you can add your own MP3s, along with song text and video files. So go snag the game, add some music, and get your groove on this weekend (without ponying up for a gaming console or a new game). Performous is a free, open-source download, currently Linux only. The download page points out that Windows and Mac versions are in the works, so keep your fingers crossed.