The Humble Weekly Bundle this week is for retro shooters.
Pay what you want for Serious Sam HD: The First Encounter, Serious Sam HD: The Second Encounter, Shadow Warrior: Classic Redux and Duke Nukem 3D: Megaton Edition ($1 minimum for Steam keys).
Beat the average priced paid (currently $6) and receive Hard Reset: Extended Edition and System Shock 2.
All games are priced in US dollars and exclude tax. All games are digital downloads.