We've only recently had official confirmation that a native Linux client was being developed for Valve's popular Steam digital games platform, and we still don't have a release date for it, but now we know that there will be at least one other game to play, in addition to Valve's own Left 4 Dead 2.

Croteam and Devolver Digital have announced that their recent shooter Serious Sam 3: BFE (AusGamers 7.8/10) is coming to Linux and that it will include Steamworks integration and achievement support "because penguins like to blow shit up too".

Fork Parker, chief financial officer at Devolver Digital said, “We’re in the process of integrating Steamworks and achievements and the whole shebang, but we can’t get the little fucker of a penguin to stand still.”

Serious Sam 3: BFE is a glorious throwback to the golden age of first-person shooters where men were men, cover was for amateurs and pulling the trigger made things go boom. Serving as a prequel to the original indie sensation, Serious Sam: The First Encounter, Serious Sam 3: BFE takes place during the Earth’s final struggle against Mental’s invading legions of beasts and mercenaries. Set against the collapsing temples of an ancient civilization and the crumbling cities of 22nd century Egypt, Serious Sam 3: BFE is an exhilarating fusion of classic twitch shooters and modern gameplay features.

Parker continued, “The last time I had anything ‘Open Sourced’ I was in Thailand, if you catch my drift.”

A screenshot featuring Linux mascot Tux the penguin can be seen here, running natively on a Ubuntu desktop.

The Steam Linux client still has no official date attached, but Devolver's plans to launch Serious Sam "in 2012" suggest that it should be here before the year's end -- give or take a year or two to account for the Valve Time principle.