History Main / DoNotSpoilThisEnding

* Music/WeirdAlYankovic's song "Nature Trail to Hell," which is basically an ad/trailer for the movie, admonishes "Please don't reveal the secret ending to your friends."

* The ending of Agatha Christie's ''Theatre/TheMousetrap'' has been kept under wraps for over half a century--part of the contract stipulates that the play cannot be adapted to film until after its West End production closes, and each performance ends with the cast ceremonially swearing the audience to secrecy.

* Creator/JustineLarbalestier, in ''Literature/Liar2009'', asked readers not to spoil that Micah is a werewolf.

* When TheReveal of UU (a.k.a. Calliope, a cherub) was posted in ''Webcomic/{{Homestuck}}'', Hussie posted a note asking fans not to start spreading it around Tumblr as was the norm. If they had to, he posted a ''fake'' reveal in which UU was shown as a troll, as was hinted. The notice has since been removed.

* When ''WesternAnimation/WreckItRalph'' was still airing in theaters in 2012, the {{Website/Tumblr}} userbase sent a notice around the site telling other users not to spoil the twist that King Candy was actually Turbo. For a couple of weeks this worked -- at least until they broke their own promise and started posting TheReveal in its full, spoilery glory.

* Creator/RachelBloom's musical comedy ''Death, Let Me Do My Show'' obscures a particular credit from the playbill to avoid spoiling an early twist about the play's format. The credit is later exhibited on a poster near the exit of the theater, with a warning not to post a photo of it on social media as it's meant to be a surprise.

* In ''VideoGame/BillyVsSNAKEMAN'', the penultimate page of [[BonusLevelOfHell The Impossible Mission]] tells players that have gotten that far ''"One last page exists. The game's creator has asked that its contents be kept secret."'' The last page is possibly the most widely viewed part of the game that is not in its [[TheWikiRule Wiki Guide]].

* ''VideoGame/GettingOverIt'''s ending also encourages people who [[NintendoHard do manage to get through it]] not to spoil the surprise, claiming that "The Journey is Greater than the Destination".

* The ending of Agatha Christie's ''Theatre/TheMousetrap'' has been an open secret for over half a century--part of the contract stipulates that the play cannot be adapted to film until after its West End production closes, and each performance ends with the cast ceremonially swearing the audience to secrecy.

* In an episode of ''WesternAnimation/{{Arthur}}'' where he buys a computer game called ''Deep Dark Sea'', he explains that there's a "thing" in the game he needs to find. Apparently another kid who found it received a ton of free stuff, as long as he didn't reveal what "the thing" was. Arthur and Buster find a treasure chest in the game, and expect that's "the thing," but it later turns out to have just been full of evil skeletons.

* Creator/PeterDavid has asked this several times when bringing out a plot-twist book. He even managed to save ''someone else's'' big twist -- the first issue of Kurt Busiek's ''Comicbook/{{Thunderbolts}}'' -- by catching and changing [[https://www.peterdavid.net/2014/01/24/gil-kane-and-previews/ a solicitation for his own book]] (where the T-Bolts were appearing first to set the stage) which would have casually given it away!

* The creator of the ''VideoGame/{{Touhou}}'' has asked the fanbase not to reveal the endings of the games. Most likely so that those who ''do'' make it to the end and see an ending can feel a real sense of accomplishment. Given [[BulletHell the genre]], seeing the Good ending of a game is a pretty big accomplishment indeed. For the most part, the fanbase complies, to the point of the Wiki not revealing even the synopsis of any endings, and when a character only shows up in a game's ending, it's spoiler-tagged on the character's appearances list.
* Creator/TobyFox, the creator of ''VideoGame/{{Undertale}}'', asked people to not spoil the game's secrets for others, both in an audio file addressed to people ripping the sound effects, and some text strings addressed to people ripping the dialogue. He also included a message in the texture files asking people to not upload them online because of the way [=GameMaker=] Studio puts many sprites together in gigantic texture files (the entirety of Undertale's sprites are compressed into maybe 4 enormous texture files, so it's clear why he was worried about people uploading them unedited), though saying they're allowed to copy "normally seen" sprites into separate sprite sheets for Spriter's Resource. Toby seems to be more relaxed in the request after being interviewed by a gaming outlet, saying that he doesn't mind people datamining the game as much as he used to before and the reason he wanted spoilers minimized was to allow people to play the game blind and experience the plot twists on their own.

[[folder:Web Comics]]

* ''[[VideoGame/ChzoMythos Trilby: The Art of Theft]]'' asks you to lie to other players about what you unlock for beating every mission in a row using a suit that increases your visibility. You get nothing.