Even the Jewel of the Nile DLC can be bought with the same discount
Serious Sam 3: BFE is a very serious first-person shooter, as the name suggests. It’s developed by Croteam and it’s one of the launch titles for Steam on Linux.Steam Winter Holiday Sale 2012 is now in top gear and it's promoting some incredible deals. Serious Sam 3: BFE benefits from a 75% discount for the holidays, including the recently launched DLC, Jewel of the Nile.
As it stands right now, Serious Sam 3: BFE is one the most important tiles on Steam for Linux and the developers have already pushed a few important patches, fixing tons of problems.
If you are looking for an old school shooter that spices up the gameplay some pretty awesome graphics, that Serious Sam 3 is a serious contender.
If you are interested in Steam's offer, check out the official Serious Sam 3 website.