This week's Humble Bundle features Croteam and Devolver Digital's old school first person shooter series Serious Sam.
That means for this whole week, every Serious Sam game is up for purchase for a low, low price. However, the Humble Bundle is holding Serious Sam 2 and Serious Sam 3: BFE back as collateral. Paying above the average, which stands at $4.20 at the time of this article, will yield both games.
Seeing as each of these games is going for more than $5.99 on Steam, paying $5 for all these games is a steal. And the money raised for this bundle will be going towards the next game in the series, Serious Sam 4.