!!From the visual novel:
* AngstAversion: Compared to visual novels with a lighter tone, Echo's tendency towards BittersweetEnding and DidNotGetTheGuy can turn off those expecting a more typically romance-centered VN experience; especially so for TJ's route, which outright ends with the reveal that [[spoiler: [[TheKillerInMe Chase was the one who killed Sydney years ago]]]], and subsequently not only [[spoiler: murders Flynn under the same circumstances due to the manipulations of a mysterious outside entity]] but [[KarmaHoudini gets away with it]] before driving off into the sunset [[spoiler: with TJ agreeing to help him report it as justified self-defence and what little remaining camaraderie their friendship group had left [[TheFellowshipHasEnded now completely shattered]]]].
* DracoInLeatherPants: Many people unironically want [[spoiler:Leo and Chase to get back together]]. While he is a very tragic character, many people are all too willing to ignore [[spoiler:Leo's]] toxic traits because he is a handsome wolf.
* FanNickname:
** "Sam" for [[spoiler: the voice that Chase hears inside of his head at certain points, and who is implied to be the one that the player is ''really'' making choices for,]] due to a common fan-theory that [[spoiler: the person that the voice is a "simulation" of (as described by the voice itself) is Samuel, the protagonist of the {{Prequel}} visual novel ''The Smoke Room''.]]
** Chase Hunter's full name is often shortened to "Chunter" by fans.
* {{Fanon}}: Mr. Bronson's first name is almost universally headcanoned as Chip due to a minor otter character being called Dale.
* FanPreferredCouple:
** Ultimately [[spoiler:Chase realizes how toxic Leo is and goes to be with Kudzu. Most fans still prefer to ship the otter and wolf anyway; it's actually extremely rare to find the official endgame in fanart]].
** Sydney/TJ is also very popular, by default an AU given the former's death as a child. Game writer McSkinny has expressed distaste for this ship, but it is generally praised by fans due to Sydney's tragedy and canonical desire to make amends with TJ (plus [[spoiler:DemonicPossession being to blame for his bullying]]).
* HarsherInHindsight: Pretty much anything involving [[spoiler: Sydney's death]] becomes this after the end of TJ's route, where it's revealed that [[spoiler: Chase himself was the one responsible]]; not to mention how some of the [[TheFriendNobodyLikes more negative]] things we hear about him come across after the scenes in Flynn's route that show flashbacks of [[spoiler: Sydney's [[AbusiveParents terrible home life]]]] from his perspective.
** Another example involving [[spoiler: Sydney]] is the fact that Chase's internal monologue during a flashback near the end of TJ's route cites his belief that [[spoiler: Sydney killed his own father deliberately]] as part of the reason for [[spoiler: killing Sydney to protect TJ from him]]. Except that, as it turns out in Flynn's route, [[spoiler: while Sydney ''was'' present at the scene where his father was killed, it was because he was trying to ''stop'' him from [[AteHisGun shooting himself]] and at most pulled the trigger [[AccidentalMurder by accident]] in the resulting struggle,]] meaning that Chase's interpretation of events was [[PoorCommunicationKills completely off]].
** Going outside just the one character, much of [[spoiler: the relationship between Leo and Chase ]] is bad enough in its specific route, but can be interpreted as a little more grey when cluttered up with the hysteria going on, as well as them being so young originally. Add to that some of the context of the other character routes and their original problems get cemented further, and you can easily start to doubt that [[spoiler: Chase even really wanted to rekindle things]] at the start of the story. Add Route 65's veiled storyline with [[spoiler: Leo thinking the Chase caught him in the middle of a recorded hookup]], only to do his damnedest to cover it up, as well as his thinly veiled lie that [[spoiler: he saw Chase's advert while looking for LAWN MOWERS ]] when he was clearly doing the same exact things, right as [[spoiler: he's looking to start a relationship ]] really just puts a dark cloud over everything.
* HilariousInHindsight: One scene early in the prologue features the characters discussing the merits of an in-universe movie adaptation of a [[ShowWithinAShow superhero comic series called "Lion's Brigade"]] named [[Film/AvengersEndGame "End Game"]][[note]]bear in mind the scene itself was written back in 2015[[/note]]. Apparently Carl dislikes it for [[TheyChangedItNowItSucks not properly following the source material]].
* LauncherOfAThousandShips: In a combination of pity at his canon fate ([[spoiler: as well as a muscular illusion showing an hypothetical adult version of him]]), Sydney gets shipped with almost everyone in fandom.
* MemeticMutation: Most of these examples are restricted to furry discord communities, occasionally bleeding into twitter.
** Leo's foot fetish[[note]]In the bad ending of his route Chase loses his legs, Leo carrying him to his house deluded that he can patch it up, when Chase bleeds to death. A combination of Leo's overall obsession with Chase + seeing nothing wrong with that has somehow metastasize into him having a fetish for his "chula"'s feet.[[/note]]
** Mpreg[[note]]One of the writers, McSkinny, has am mpgreg fetish. This has lead to numerous pictures of Chase and other characters having pregnancy tests.[[/note]]
** [[WesternAnimation/StevenUniverse Rose Quartz]] is the real villain.[[note]]One of the possibilities for the Echo Entity is that the mines' quartz deposits reflect dark energy. It was only too easy to blame this on Rose Quartz, though it quickly became a DiscreditedMeme to the point the creators had to clarify it wasn't Rose Quartz after all and shut down the conversation. Mentioning this is now grounds for [[SeriousBusiness banning]] in the Discord server.[[/note]]
** Red flags.[[note]]Discussions about Leo and whether or not he's capable of maintaining a healthy relationship with anyone will often end up with someone mentioning all the "red flags" he gives off throughout the novel. Some of the reasonings being legit concerns while others being more of a joke (ex: [[SeriousBusiness Feeding your date a TV dinner is a red flag]]). Fans also joke that Leo's mostly red fur makes him a red flag himself.[[/note]]
* {{Squick}}: The gruesome noise used whenever a character breaks their ankle [[AgonyOfTheFeet (which happens fairly often)]], along with the reveal late into the best end for Carl's route that Chase almost [[spoiler: drank from a cup filled with urine while still under the hallucination]].
* TheWoobie: The entire cast has Woobie points in some way, but special mention goes to TJ for being considered something a Woobie in-universe by the others (except for Flynn, who resents the special treatment he gets and its role in preventing him from learning the truth about what happened to Sydney).
---------------------------