Croteam and Devolver Digital announced today that Serious Sam 3: BFE will head to Xbox Live Arcade next week, on October 17. The Jewel of the Nile expansion pack will be available on the same day.
Serious Sam: BGE itself will cost $15 (1200 MSP). This includes the single-player, online and split-screen co-op campaign. The Jewel of the Nile expansion and competitive multiplayer modes will be bundled together and available the same day, also for $15 on XBLA.
As previously reported, the expansion sends Sam to the Temple of Isis to cast monsters off their mortal coil using the newly-included sniper rifle and laser gun.