Sure the hi-definition remake of Serious Sam is out already for both The First Encounter and The Second Encounter, but sometimes we just want to re taste the original that we so fondly remember.  Sadly for a lot of PC gamers, it's near impossible to find some quality older titles - most are out of print and unless you hit EBay at the right moment, it becomes extremely frustrating to find.  

This week in Co-Op Classics, I have to give a big thank you to Co-Optimus user wayspooled.  He recently posted a list of co-op games in the forums, and one of those games in particular got me all misty eyed when I saw it.  A glorious mix of Duke Nukem and shiny, real 3D graphics, Serious Sam was a seriously great game.