Like every other linear Visual Novel that have multiple endings, there's an achievement for getting the default ending, and I consider this to be this game's equivalent of that. To unlock it, you need to fail both in-game quizzes and view the ending that follows.

For those interested, here are a set of choices I made that led me to said ending:

• Where are we?
  
• What are you?
  
• How did I get here?
  Save 1
  
• Is it possible for me to get back home?
  
• Sure, I'll sell my soul.
  
• Let's jump straight into the two stories then.
  
• False
  
• False
  
• False
  
• False
  
• False
  
• False
  
• False
  
• False
  
• False
  
• Not Enough
  
• Yes
  
• Steal from the Merchant
  
• The Salesman
  
• Save the Children
  
• Blame Everyone
  
• I'm seizing the opportunity to research other cultures through the lens of a sniper rifle.
  
• Why not both?
  
• Retreat, Prepare, and recover what was lost.
  
• Multiple times.
  
• Up.
  
  

Honestly, it's kinda lonely in these forums. It's like a ghost town here. Maybe sending a few unlucky tourists would help the population spike up?

• Load 1
  
• Has anyone successfully managed to escaped this cabin?
  
• No, I'd rather keep my soul
  Save 2
  
• True
  
• False
  
• True
  
• False
  
• True
  
• True
  
• True
  
• True
  
• True
  
• Not Enough
  Save 3
  
• False
  
• Yes
  
• Kill the Merchant
  
• The Salesman
  
• Get the train on both tracks
  
• Blame Dos
  
• We should join as a family
  
• Big, beautiful, powerful walls
  
• Fight for it until the very end
  
• Of course
  
• Right
  
  

Haha, you got rickrolled by a sentient houseplant that takes the form of a human girl with yellow hair. All joking aside, these character designs really are the most bizarre things I have ever seen.

• Load 3
  
• True
  
• Yes
  
• Kill the Merchant
  
• The Salesman
  
• Get the train on both tracks
  
• Blame Dos
  
• We should join as a family
  
• Why not both?
  
• Retreat, prepare, and recover what was lost
  
• If I'm not involved, sure.
  
• Right
  
  

On an unrelated note, I'm sure the secrets of the universe will be explained. Somebody just needs to find a priest in Casino County who preaches this backwards religion called Knoversky and stab him 576 times with a butcher knife. Then we can form a raid party to unravel those secrets, and shout Leroy Jenkins until we're confronted by a respawn timer.

• Load 3
  
• True
  
• Yes
  
• Steal from the merchant
  
• The woman
  
• Save your wife
  
• Blame Isa
  
• I'm seizing the opportunity to research other cultures through the lens of a sniper rifle.
  
• Long, wonderful, unbreakable bridges
  
• Escape to another country and never return
  
• No
  
• Up
  
  

4/12/2017: Created the guide, inserted placeholder text for endings I haven't unlocked yet, and made a list of choices for the You Didn't Listen achievement.

4/15/2017: Inserted more images into my guide, figured out that all choices that pop up before Eleanor's quiz do not affect the ending you get, as far as some note-taking has made me aware of.

5/8/17: Rewrote a batch of placeholder text because A) I wanted to incorporate all my placeholder text into the final version of this guide, and B) I wanted to make it seem as though I was still working on this guide. In reality, I was unable to make any meaningful progress on this guide, let alone actually play Azurea Juncture over the weekend, due to upcoming events in my life that require higher priority than writing this guide does. It is those same events that force me to put this guide in Indefinite Hiatus until I can resume work on it.

Fun fact: I was asking myself a few "What if?" questions about this game, and then I asked myself "What if the choices that make an appearance before Eleanor's quiz do affect the ending I get?" While I haven't proved or disproved this, I find that it's an interesting question I should keep in mind.

5/15/17: Thanks to steam user proudlarry, I have been able to confirm that passing Eleanor's True/False quiz does not get you any of the three endings I haven't unlocked as of this update. Neither one of us currently know how to pass Reverie's Psychological quiz, however. What matters is that it confirms the suspicion I had shared in the last update regarding what actually does unlock the "You Listened", "You Already Knew", and "You Couldn't Stop It" endings. (Yes, that means this guide is no longer on Indefinite Hiatus. Bad news is, it's still a work-in-progress.)

5/16/2017 - For whatever reason, I had decided to look at the concept art for the characters in the extras menu. Turns out the developer commentaries for each character's concept art revealed my burning questions about the game regarding how to unlock the other 3 endings. So, in essence, I was partially right when I thought the True/False and Psychology quizzes unlocked the other endings, and partially right when I had then thought that what ending you got relied on what choice you selected in the fourth set of choices. Maybe, if I hadn't been trying to re-invent the wheel, and checked the extras menu before I did anything else in Azurea Juncture, it wouldn't have taken me 34 days to finish this guide. All that effort and time, wasted over something that could have been as easy as "Check the extras menu, get all 4 endings, and be done in less than an hour". Ahh well, the positive side of writing guides is that it helps people who decide to buy Azurea Juncture complete the game, and I can't complain if I can finally uninstall Azurea Juncture, so it's a win-win scenario.

5/18/17: I added an alternate series of choices that apparently unlock the "You Listened" achievement because of an issue steam user twitch.tv/Hikikomori523 had with getting that ending, of which I never had the misfortune of experiencing back when I finally finished this guide.