In this post, we bring to you many sound effect sources that we believe will help you in getting the kind of audio you are looking for your game. And good thing is that there are quite many sites that offer repositories of free background music, music loops and sound effects which can be used for developing commercial games. It is absolutely essential to have a great background score and SFX in order to make your games addictive. Music and sound effects play a significant role in giving a game a character of its own.