Frets On Fire - (Linux, Windows, Mac) Winner of the Assembly Demo Party 2006, Frets on Fire is a Finnish music video game created by Unreal Voodoo. Players use the keyboard like a guitar to play along with scrolling on-screen musical notes to complete a song. One hand is used to press the ‘frets’ (F1 to F5) and another is used to press the ‘picks’ (Shift or Enter). Colored markers that appears are to be played by pressing ‘frets’ of the correct color and ‘picks’ at the correct moment. There are also song editors and tutorials featured in the game. Frets on Fire is free and open-source software. The game is written in the Python programming language and is licensed under the GNU General Public License, though the game incorporates other free and open-source code under other licenses. The game’s included song files and some internal fonts are proprietary, however, so their redistribution is not permitted. Price: Free.