Physics Engine: Painkiller employs the Havok 2.0 physics engine, allowing for inverse kinematics ('rag-doll physics') and deformable, interactive environments.Lasting replay value: Painkiller features a standard single player campaign, with additional modes to encourage replay.Morphing: Your unholy pact gives you the power to morph into a powerful possessed creature with every 66 souls collected.Combo weapons: All weapons come in pairs, with a primary and secondary fire.As you fight for your purification, the truths behind the deceptions are revealed. The Underworld is on the verge of unholy war, and you are but a pawn in the infernal battle. Stranded in a place between Heaven and Hell, your time of judgment is at hand. Plug in the Havok 2.0 physics engine, and you get a realistic environment in a totally fantastical setting. The proprietary PAIN Engine puts out an unbelievably high polygon count, while adding increased texture quality and the latest lighting and shadowing techniques, including soft shadows, DOT3 bump mapping, water reflections, glass simulation, volumetric light and fog, and more. It's an adrenaline addict's nightmare, where hellish monsters swarm in seemingly endless mobs. Painkiller is a first-person horror shooter, designed to satisfy a gamer's hunger for intense, fast-paced action. Painkiller Black Edition includes Painkiller and the expansion pack Battle Out of Hell, featuring 10 additional single-player levels and many new villans.

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