Steam now offers Painkiller: Recurring Evil, the latest expansion for Painkiller: Resurrection. The first-person shooter add-on is on sale for 20% off, as is the Painkiller Complete Pack. Here's word:

Battle never ceases in the realm known as Hell. This time around it's a battle for the freedom of your very soul. Experience the magnificent dark atmosphere of the good (or evil?) Painkiller, the only true oldschool First Person Shooter, tough as nails, without a trace of remorse, without a glimpse of motion blur or other technological makeup. Just Painkiller and nothing else matters!