 Interplay offered a bonus disc containing extra multiplayer levels to those who pre @-@ ordered the Windows version of the game . On October 5 , 2003 , they offered the game 's soundtrack to those who purchased Giants from their online store . Composers Mark Snow ( noted for his The X @-@ Files musical scores ) , Mark Morgan , and Jeremy Soule ( both known for the music of several video games ) were involved in the music for Giants . Interplay hired Morgan to compose the scores , although reports showed they initially hired Snow for the task . Morgan , however , could not fully concentrate on the task due to personal reasons and handed it over to Soule . Closing credits of the game listed only Morgan and Soule , and Soule compiled their works onto the original soundtrack of the game . Soule originally offered to autograph the soundtrack on its release in the United States ; however , he stopped his offer when email feedback revealed many were intending to pirate his work through the peer @-@ to @-@ peer file sharing software Napster instead of buying it . 
