Konami is launching a Facebook application to tie-in with PS3 and Xbox 360 title Castlevania: Lords of Shadow.
The app will ask you to swear allegiance to the God Mask of the Brotherhood of Light or the Devil Mask of the Lords of Shadow. Then you can fight alongside and against friends in a virtual arena.
This involves taunting and inflicting damage on opponents, earning experience points and virally recruiting friends to your army. You can thereby unlock Castlevania: LOS screenshots, videos and special items.
The app features leaderboards, a built-in save system and, tech fans, a modular, Flash-based, PHP SDK design framework.