Chains of Olympus will go on sale in North America on March 4, 2008.

God of War: Chains of Olympus screenshot

During a visit to the Ready at Dawn studios, GameSpot has learned that the upcoming God of War: Chains of Olympus is scheduled for release on PSP on March 4, 2008 in North America - a European date will likely follow at a later date.

Chains of Olympus will feature an all-new story set between the death of Kratos' family and the start of the first God of War title.

A playable demo is expected later this year, although currently there's no word on whether this will be global or for North American gamers only.