text: The soundtrack was composed by Gerard K. Marino, but was never commercially released. After the release of the demo disc, Ready at Dawn offered pre-order customers a music track on disc titled "Battle of Attica". Composer Gerard Marino stated that it was the first cue written for the game, based on concept art and screenshots. Marino composed roughly thirteen minutes of music for the game and re-worked other music from the previous titles. Three tracks from the soundtrack are included as bonus tracks on the God of War: Ghost of Sparta soundtrack.
  Release
  The demo disc, officially titled God of War: Chains of Olympus – Special Edition: Battle of Attica, was released on September 27, 2007. In the demo, Kratos battles Persian soldiers and a giant basilisk. The demo progresses through the city of Attica as Kratos chases the basilisk, culminating with Kratos fighting the Persian King. The disc also included a developer video and a lanyard in the shape of the Greek letter Omega. Following the demo's release, a downloadable version was made available through the PlayStation Store in North American and European regions. Due to the delay of the game, Ready at Dawn offered a "special edition" version of the demo to pre-order customers, with one Ready at Dawn developer stating that preparation of the special demo disc took up to 40% of the team's production time.