Painkiller: Battle out of Hell is an expansion pack for Painkiller, released on November 22, 2004. It was developed and published by the same companies as Painkiller. Battle Out of Hell features an all-new 10-level single player campaign, two new weapons (each taking a page out of the original game’s book with two fire modes each), new multiplayer modes, and improved visual effects.
Add-on continues the story where the original left off: Lucifer is killed and his position as ruler of Hell is now free. Alastor, one of four hell generals Daniel Garner was assigned to kill in the original game, appears with a horde of demons and confronts Daniel, who now has to retreat with the help of Eve. Daniel’s new goal is to battle through out of hell and eliminate Alastor, who is now rightful ruler of the demonic forces. Before confronting his powerful enemy, Daniel visits such places as an orphanage full of possessed children, a hellish circus named Loony Land, a pirate bay, colliseums, Necropolis, and even a twisted version of World War II Leningrad. After taking out Alastor, Eve thanks Daniel for allowing her to take control. Eve offers Daniel the chance to rule by her side, but Daniel, pointing his gun at Eve, refuses and the screen fades to black.
Flamethrower — The secondary fire is as one would expect from a typical flamethrower, and the primary fire is a submachine gun with armour-piercing rounds, which is similar to the chaingun. Although its rate of fire is much lower, the individual shots are more damaging. The combination fire is performed by holding down the secondary fire, then hitting the primary fire, which launches a flaming canister of fuel, which can be shot to detonate it or will eventually explode on its own. The combination fire can be dangerous as one fuel canister can easily kill the player himself.Bolt Driver — The Bolt Driver is Painkiller’s take on a sniper rifle, which is capable of zooming in the player’s view. It fires five short pieces of rebar in quick succession. The secondary fire launches a fusillade of unpredictably bouncing explosives. If the secondary fire is used correctly, it is the most destructive weapon in the game, especially in tight quarters. The combination fire is triggered by successfully hitting the bouncing explosives with the primary fire.