The game Batman : Arkham Origins ' main storyline is set more than 10 years before that of 2009 's Batman : Arkham Asylum .
It was released worldwide on October 25 , 2013.Written by Corey May , Ryan Galletta and Dooma Wendschuh , the game 's main storyline is set twenty-five years before that of 2009 's Batman : Arkham Asylum and follows a younger , less-refined Batman .
Batman-COLON- Arkham Origins