 Ghost of Sparta was announced on May 4 , 2010 , on PlayStation.Blog. According to Sony , Ready at Dawn utilized " state @-@ of @-@ the @-@ art visual technologies " that allowed " higher quality environments and characters . " Ghost of Sparta offers " over 25 % more gameplay " than Chains of Olympus , while adding more enemies on screen and more boss encounters . Development of Ghost of Sparta took 23 months to complete . Due to Weerasuriya 's schedule at Ready at Dawn , he could not return to direct ; Dana Jan , the lead level designer for Chains of Olympus , became director for Ghost of Sparta . At Comic @-@ Con 2010 , Jan noted that when development began in 2008 , the goal was to make the game bigger than Chains of Olympus , which had apparently pushed the PSP to its functional limits . Jan stated that Ghost of Sparta has taken the PSP to its " absolute capacity " , with another feature being more on @-@ screen foes . The game concept was originally used as a teaser for players who obtained the platinum trophy from God of War III . The trophy revealed a site called spartansstandtall.com , which became the official site for Ghost of Sparta on May 4 . Jan stated the reason they chose to have the game take place between God of War and God of War II was because " It seemed to make a lot of sense to fill in that void . " 
