Humble Bundle organizers have launched the Humble Jumbo Bundle, serving up digital copies of Unknown Worlds' FPS Natural Selection 2, Coffee Stain Studios' tower defense shooter Sanctum 2 and Paradox Interactive's DLC-bundled Magicka for a buyer-chosen price ($1 minimum).

Beat the bundle's average purchase price (currently hovering around $4) and you'll also receive Robot Entertainment's Orcs Must Die! 2: Complete Pack, Croteam's retro-styled shooter Serious Sam 3: BFE, and Facepunch Studios' sandbox mayhem simulator Garry's Mod. Note that Garry's Mod requires a Source engine game such as Counter-Strike: Source or Half-Life 2 as a base in order to function, but considering that it gives players the power to create brilliant works like Half life: Full Life Consequences, it's worth it.

The Humble Jumbo Bundle will remain available for sale through December 17.