In a rare move, Xbox 360 owners of PREY will be able to add four new Multi-player maps and five new multi-player characters to their system for free. The content is not available in Japan. The lineup includes:

-Becky-Multi-player character
-Elhuit-Multi-player character
-Elite-Multi-player character
-Hunter-Multi-player character
-Jen-Multi-player character
-Gravity Labs-Multi-player map
-Space Oddity-Multi-player map
-Topillogical-Multi-player map
-Tunnel Rat-Multi-player map


Thanks to Major Nelson for the info.