You're standing at the security desk. Your palms are sweatier than they should be for a 2D indie game. Outside the glass, something that looks almost like your neighbor Kevin is staring at you with one eye slightly lower than the other. If you’ve played That's Not My Neighbor, you know that pit in your stomach. It’s the Doppelganger Detection Department (D.D.D.) life. But then, the game throws a curveball: the quiz. Honestly, it’s one thing to check an ID card for a missing expiration date, but answering trivia under pressure? That's where most players lose their streak. Finding the right that's not my neighbor quiz answers isn't just about being a nerd; it's about survival in a world where your neighbor might actually be a flesh-eating monster from another dimension.
The quiz usually pops up when you encounter the secret character, Chester. He's not like the other residents of the apartment building. He doesn't want to show you his entry request or his work permit. He wants to know if you’re actually paying attention to the lore of the world Nacho Sama created.
Why Chester Asks These Questions
Chester is a bit of an enigma. He appears randomly, and if you fail his little test, you don't just get a "game over" screen—you lose the chance to unlock some of the most interesting secrets in the game. The D.D.D. isn't just a faceless organization; they have rules, history, and a very specific way of handling "anomalies."
Most players stumble because the questions aren't common knowledge. They require you to look at the background details in the office or remember specific lines from the game's introductory sequence. It’s tricky. It’s fast. If you've been playing on autopilot, Chester will absolutely catch you off guard. He's basically the final boss for people who skip the tutorial.
The Definitive That's Not My Neighbor Quiz Answers
Let’s get into the weeds. When Chester corners you, he’s going to ask six specific questions. You have to get them right. There is no partial credit in the world of doppelganger detection.
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Question 1: What is the answer to life, the universe, and everything?
This is a classic. If you've ever touched a sci-fi book, you know this is a nod to Douglas Adams. The answer is 42. It’s the only question in the set that isn't strictly about the game’s internal lore, but it sets the tone for Chester’s eccentric personality.
Question 2: Which is the only case in which a doppelganger is allowed to enter the building?
This one trips people up because the D.D.D. seems so strict. You might think the answer is "never." You’d be wrong. The answer is When it's a "falsified" doppelganger. This refers to a very specific lore beat regarding how the department classifies entities that aren't quite human but aren't hostile doppelgangers in the traditional sense.
Question 3: What is the number of the apartment where a family of three lives, consisting of a father, a mother, and a son?
You have to know your neighbors. This isn't just about spotting fake noses. It's about knowing the rent roll. The answer is Apartment 02. This is the home of the Nachos family. If you haven't been keeping track of who lives where, this is usually the point where the run ends.
Question 4: What was the name of the previous doppelganger containment protocol?
The D.D.D. hasn't always been this "efficient." Before the current nightmare, there was a different system in place. The answer is DDD-01. It’s simple, but if you haven't read the pamphlets scattered around the game, it’s easy to forget.
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Question 5: What is the name of the psychological effect that causes humans to feel unease when looking at something that looks human but isn't?
This is the core philosophy of the entire game. It’s why the monsters look the way they do. The answer is the Uncanny Valley. It’s a real-world term used in robotics and animation, but in the context of That's Not My Neighbor, it's the literal survival instinct that keeps you alive at the desk.
Question 6: How many doppelgangers have been captured since the D.D.D. started?
This is the "gotcha" question. It’s a number that feels like it should be constantly changing. However, within the specific scope of Chester’s quiz, the answer is 0. Why? Because according to the D.D.D.'s official (and likely propaganda-filled) records, they don't "capture" them—they eliminate them, or they simply don't exist in official tallies. It's a dark bit of world-building.
Dealing With Chester's Randomness
Chester doesn't show up every time you play. That’s the annoying part. You might go three or four rounds without seeing him, and then suddenly, there he is, ruining your perfectly good shift. To encounter him, you generally need to be playing on the "Nightmare Mode" or have progressed significantly through the standard "Arcade Mode" loops.
When he does show up, the game's atmosphere shifts. The music changes. The tension spikes. It’s easy to panic and type the wrong thing. Honestly, the best way to handle it is to have these answers open on a second screen or written on a sticky note. There’s no shame in it. The D.D.D. is a bureaucracy; use your resources.
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The Mistakes Most Players Make
I’ve seen dozens of streamers and players fail this quiz for the same three reasons.
- Typos. The game is picky. If you spell "Uncanny Valley" wrong, you’re dead. Double-check your spelling before hitting enter.
- Overthinking. People try to find deeper meanings in the questions about the families. They start counting every character they've seen. Just stick to the facts: Apartment 02 is the family of three.
- Speed. While there is a sense of urgency, you actually have a moment to breathe. Don't rush the input.
How to Get the Secret Achievement
Passing the quiz isn't just about bragging rights. It unlocks the "Chester's Friend" achievement. Beyond that, it provides a sense of completion for the lore. You begin to realize that the D.D.D. might be just as creepy as the doppelgangers they are trying to stop. The questions about protocols and official numbers hint at a much larger, much darker conspiracy happening behind the scenes.
If you get all the that's not my neighbor quiz answers correct, Chester will grant you a special badge or item depending on the version of the game you are playing. This usually signifies that you are a "Model Employee," or at least someone who knows too much for their own good.
Advanced Tips for Nightmare Mode
Nightmare Mode changes the frequency of these interactions. You’ll find that the doppelgangers become much more subtle. A missing mole. A slightly different shade of hair. In this mode, Chester’s quiz feels like a reprieve because the answers are static, whereas the visual puzzles are randomized.
Keep a log of the residents. I know it sounds nerdy, but having a physical list of who lives in which apartment (and with whom) makes the entire game 50% easier. When Chester asks about Apartment 02, you shouldn't have to think. You should just know.
Actionable Steps for Your Next Shift
- Memorize the "42" and "Uncanny Valley" answers immediately. These are the easiest points you'll get.
- Keep a tally of apartment occupants. Specifically, remember that Apartment 02 is the core family mentioned in the quiz.
- Watch the background. The D.D.D. logos and posters aren't just for decoration; they contain the protocol names like DDD-01.
- Practice typing the answers. Since the game requires manual input, speed and accuracy in spelling are your best friends when the pressure is on.
- Check your version. Ensure you are playing the latest update from Nacho Sama, as small dialogue tweaks can sometimes happen, though the core quiz answers have remained remarkably consistent since the game's viral breakout.
Passing Chester's test is the hallmark of a player who has moved beyond the "jumpscare" phase of the game and into the "mastery" phase. Once you stop fearing the quiz, you can start focusing on the real challenge: making sure that thing at your window isn't actually your boss.