View source for House of Pain

{{infostrat switch}}
{{Special level|
level_name=House of Pain|
level_dlvl=17 (Does not appear on ITYTD)|
level_intxt=''You enter the House of Pain.''

''A deathly high-pitched voice cackles!'': "Well, who do we have here? It seems that you've stumbled into my luxurious home. Would you care to have access?"

'''If the player declines:'''

"No? All right, I'll see you out then."

'''If the player accepts:'''

"Well then, enjoy yourself. Just be wary of my other guests!"|
level_loottxt='''After killing all enemies in each room:'''

''The voice wails: "I'm impressed! Why don't you come back to the first room and we'll see if I can't give you a just reward."''|
level_outtxt='''If the player exits after declining entry:'''

''Better show myself out...''

'''If player enters the house but doesn't finish off all enemies in the final battle:'''

''Enough!''

'''If all enemies have been killed:'''

''My house, my rules.''|
level_itytd=N/A|
level_hntr=First room: [[demon]] (x10), [[arachnotron]] (x4)

Second room: [[cacodemon]] (x4), [[hell knight]] (x4)

Third room: [[mancubus]] (x2), [[revenant]] (x2)

Final Battle: [[arch-vile]] (x2)|
level_hmp=First room: [[demon]] (x10), [[arachnotron]] (x4)

Second room: [[cacodemon]] (x4), [[baron of hell]] (x4)

Third room: [[mancubus]] (x3), [[revenant]] (x3), [[arch-vile]] (x1)

Final Battle: [[nightmare arch-vile]] (x1)|
level_uv=First room: [[demon]] (x6), [[arachnotron]] (x8)

Second room: [[nightmare cacodemon]] (x4), [[baron of hell]] (x4)

Third room: [[mancubus]] (x4), [[revenant]] (x4), [[arch-vile]] (x2)

Final Battle: [[nightmare arch-vile]] (x2)|
level_n=First room: [[demon]] (x6), [[arachnotron]] (x4), [[nightmare arachnotron]] (x4)

Second room: [[nightmare cacodemon]] (x6), [[baron of hell]] (x6)

Third room: [[mancubus]] (x6), [[revenant]] (x6), [[arch-vile]] (x3)

Final Battle: [[nightmare arch-vile]] (x2), [[baron of hell]] (x4)|
level_loot='''Preset loot:'''

[[10mm ammo]] (8x24), [[shotgun shell]] (8x8), rocket (8x3), [[Power cell]] (8x20), [[10mm ammo chain]], [[Shell box]], [[Rocket box]], [[Power battery]], [[Large Health Globe]] (x4)

'''Loot that spawns in the first room upon clearing out all three rooms:'''

An assortment of 15 random ranged [[weapons]], [[armor]]s, and [[boots]]|
level_other=This level is paired with [[The Vaults]]. There is a random chance that the stairs to this level instead of to The Vaults will spawn on floor 17.

Upon entering this level, you'll be in a closed off room with only two tiles of space, and given the choice of if you want to enter. Declining the invitation will spawn the stairs next to you, where you'll then be able to do nothing but exit the level. Accepting the invitation will have the walls around you disappear, giving you access to the first room. There will be no stairs, and the doors out of this room are locked, while all the doors and walls are also indestructible, so you must fight your way out.

Killing all enemies in the first room will unlock the doors, and entering the second room will relock the doors while spawning more enemies. Killing these enemies will unlock the right doors to give you access to the third room, and entering this room will spawn another group of enemies. Once all enemies in all rooms are dead, all doors will unlock, while a batch of 15 randomized weapons/boots/armors and the stairs will spawn in the first room. When you reenter the first room, all doors will lock again and one final group of enemies will spawn. Also note that the enemies in the first room always have the same starting position, but enemies in the other rooms have their starting position randomized when spawned.

[[Phase device]]s, [[Homing phase device]]s, and the [[Hell Staff]] are disabled from working on this level, so you'll be unable to teleport to bypass the locked doors. Using the [[Arena Master's Staff]] on this level will permanently unlock all the doors, allowing you to freely move inbetween them, which you can utilize to backtrack to get more favorable positioning, ammo you left behind, or to use one of the [[Large Health Globe]]s inbetween the rooms. Entering later rooms will still spawn their respective battles regardless of if you cleared out all prior rooms, and you still must kill all enemies in all rooms to spawn the reward, stairs, and final battle.

The random items are items that could [[Item Generation|normally drop]] on level 20, and the weapons are always ranged weapons. These items are five times as likely to be an {{exotic link|Exotic}} or {{unique link|Unique}}.}}