Destroy new monsters, defeat bigger bosses, play new multiplayer modes. Picking up where Painkiller left off, Battle Out of Hell continues the story with our hero, Daniel Garner, surrounded by dozens of Hell's minions. Lucifer has been defeated, but Eve is unconscious at his feet, and Alastor is thirsty for blood. Battle your way out through a new single-player 10-level chapter against new and bigger villains.
The game is an old-school FPS, meaning that you don't need to have brains for solving things, here, you just have to shoot the hord of demons coming in a closed arena. Destroying them will open the next section of the level.
The game is featuring two important mechanics: the Black Tarot and the Demon Morph. The Black Tarot allows you to carry its cards for using their effects during fights. You can only carry 5 per level: 2 Silver Cards (with immediate effect and without limiting use) and 3 Golden ones (you can only use them one time per level and in a limited time, unless you have the card that can allow you three uses). The cards can be acquired by winning challenges like using a certain type of weapons, killing all enemies, find all secrets, etc.. The cards are also costing gold when you place them, so, it's up to you to collect the money.
The Demon Morph is happening every 66 souls eaten. Demons that died let behind them a green/red soul that can heal you but also allows you to build your morph. A Demon Morph can kill instantly every demon by looking and firing at them. It's limited in time.
Finally, the choice of difficulty will have an impact on the game: choosing Daydream will allow cheats code but you're denied to acquire cards and to play one level. Insomnia is still allowing cheats codes but you can also play with Tarot. Nightmare is denying the use of cheats codes and allows you to play the locked level. Finally, Trauma is also allowing you to play an hidden level if you're having the five stars in each level. You can't use cheats and demons aren't letting souls behind them. Also, when you have finished Insomnia for example and you're beginning a new game in Nightmare, you will still have the unlocked cards. PK BOOH is also letting you to use the Tarot Card from Painkiller.
- 10 entirely new, diverse and bigger levels – no texture ever reused, each level is entirely unique
- 4 new weapons, grouped in pairs, including a flamethrower/semi-machine gun
- 2 new multiplayer modes, including a “hellish mutation” of Capture the Flag
- New multiplayer maps
- Improved game engine: improved visual effects, updated network prediction code
- Redesign entirely the single player campaign, or create new MP maps with the full set of editing/modding tools provided with the add-on