Sick Kreations, developer of the top-rated Xbox Live Indie first-person shooter Nuclear Wasteland, has released its ambitious online multiplayer follow-up End of Days: Infected vs. Mercs.

End of Days is an arena-styled FPS that features a variety of solo and team-based deathmatch modes, including a unique Head Fest variant in which "only head shots count and your head is twice its size." Notably, the game supports up sixteen simultaneous players over Xbox Live -- an impressive feat for an underrepresented genre in the XBLIG catalog.

End of Days is available for 240 Microsoft points ($3).