This website gives you access to game music submitted by its users and searchable according to different tags.A cool feature on this site is that you can listen to tracks from one artist while you continue to browse other titles.
There are already hundreds of sounds to choose from and more are always being added.
Besides the free game sounds, Open Game also has an extremely active forum where you can interact with the very people that create the sounds. The Octave collection that they’ve made available is a comprehensive selection of free UI sound samples in form.
Free downloads are available with a CC-BY 3.0 License, meaning you need to attribute is a source of royalty-free game music that is available to use under Creative Commons License Attribution-No Derivs 3.0.
This website is really easy to use and the songs themselves really stand up at a professional level.
have a huge collection of free sound samples available on their site that you can use without any attribution, although they would like to be properly credited for their work.