Recently, DLC was announced for Serious Sam 3. Titled Jewel of the Nile, Devolver Digital is bolstering the game's story with new missions plopped into the middle of the plot.

Specifically, three new missions will augment the experience. Thus far it's been revealed that Sam will explore the temple of Isis, the Egyptian patron of nature and magic. Serious Sam: Jewel of the Nile releases on PC in October of 2012.