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During your first Nightmare Mode playthrough inThat’s Not My Neighboryou are sure to notice that the Neighbors you are protecting are nowhere near as lovable as those you got to know in Arcade Mode. In Nightmare Mode, you become the Doorman for Nightmare Neighbors, nightmarish versions of the Arcade Mode Neighbors.
While Nightmare Neighbors may seem familiar in some cases, don’t be fooled by their similarities to regular Neighbors. The file folders and apartment assignments in Nightmare Mode are remixed, and so is the information assigned to each Neighbor. Don’t operate on outdated information, or you’ll get yourself killed.

What Are Nightmare Neighbors?
Just like in Arcade Mode, your job as a Doorman in the Doorman’s Nightmare (also known as Nightmare Mode) is toprotect the Neighbors in your buildingfrom evil Doppelganger impostors. However,Neighbors won’t look like harmless humansin this difficulty mode.
In Nightmare Mode, you instead have toprotect Nightmare Neighbors. Nightmare Neighbors areterrifying and grotesque versionsof Arcade Mode Neighbors. These new Neighbors havedifferent professions, appearances, identification information, and, in some cases,apartmentsthan the Neighbors in Arcade Mode.

Because of thetotal appearance overhaulin Nightmare Mode, it is muchmore difficultto recognize Doppelgangers using visual clues alone. Nightmare Neighbors havecomplicated tattoos, appearances, appendages, accessories, and other visual identifiers.
Doppelgangers in this game mode aremore difficult to catch by appearancebecause they deviate so slightly from the appearance of the original Nightmare Neighbor. In some cases, you’ll need to go so far as tocount the appendages or hornson a Neighbor. Such as forShub NiggurathandLilith Lilituu Lilit.

Unlike in Arcade Mode, the easiest way to catch a Doppelganger in Nightmare Mode is to catch inconsistencies infalsified documents. In this game mode, you can still catch Doppelgangers withincorrect I.D. numbers, name spelling, occupations, or fornot being on the Daily Visitor List.
Make sure tocheck and double-checkthe file folders on the right of your screen. If you are struggling to remember I.D. numbers,consider having a pen and notepadhandy while you play. Or, keep this guideopen in another tab!
How Are Nightmare Neighbors Organized?
Just like in Arcade Mode, Nightmare Neighbors areorganized by floor level and apartment number. Between rounds, Nightmare Neighbors are also organized by theDaily Visitor List.
Floors and apartments willnever change, but theDaily Visitor List will change each playthrough, so be sure to check the list at the beginning of every round.
The Nightmare Office has thesame number of floors and apartment unitsas Arcade Mode, so the general layout of your file folders will be the same. However, theNeighbor distributionbetween floors isdifferentfrom Arcade Mode.
Nightmare Neighbors that correspond to regular Neighborswon’t always have the same roommatesas before, so make sure you’redouble and triple-checkingroom numbers!
Just like in Arcade Mode, the file folders will give you adescription and photoof each Neighbor, as well as anI.D. number, name, profession, and apartment phone number.
Formore informationon how Neighbor organization works using the file folders, check out theBeginner’s GuideorComplete Guide To Neighbors.
Remember that File Folder information isalways 100 percent correct, and while I.D.s and other documents can be falsified, the information in the folders willnever be falsified. Always double-check identifiers with the information in your File Folders.
In Nightmare Mode, Nightmare Doppelgangers will still try to fool you withfalsified documents! Always use the File Folder or Daily Visitor List photos to check a visitor’s appearance. Some Doppelgangers with incorrect appearances willupdate their fake I.D. phototo match their incorrect appearance. Be thorough!
All Nightmare Mode Neighbor Information
While youalways have accessto the information in the File Folders, it’s sometimes more difficult to keep swapping between folders and I.D.s to check information.
For instance, it can get tedious to keep flipping between an I.D. and the File Folder tocheck a Neighbor’s appearance or I.D. number. In cases like this, it’s helpful to have every Nightmare Neighbor’s informationneatly laid outfor future comparison.
For this reason, we’ve compiled acomprehensive list of all Nightmare Neighbor informationfound in the File Folders. Feel free to use this information while you play for faster Neighbor recognition!
Floor One
Here is all of the File Folder information for theFirst Floor.
1152
332569945968
116682111989
2668
896689886989
235325968986
5513
763764748675
6996
172535271725
435612349876
Floor Two
Here is all of the File Folder information for theSecond Floor.
5123
456989632368
986463213811
7332
456325638947
Lives alone
6431
156894755236
Causes famine
Yog sothoth
1346
689547464823
636463636463
Causes misfortune
Floor Three
Here is all of the File Folder information for theThird Floor.
1425
798654298466
632525984964
Collects skins
4122
945269858896
Causes pests
4242
789586413294
564895213647
4258
965845863219
Soul scarecrow
235689986532
Deforms faces