[[quoteright:268: http://static.tvtropes.org/pmwiki/pub/images/y4XzFuh_625.jpg]]
[[caption-width-right:268:[[GratuitousGerman Seid ihr das Essen?]] [[AwesomeMusic Nein, wir sind die Jäger!]][[labelnote:Translation]][softreturn][[TheHunterBecomesTheHunted "Are you the food? No, we are the hunters!"]][[/labelnote]]]]

->''"That day, the human race remembered: the terror of being dominated by '''them''', and the shame of being held captive in a birdcage."''

For more than a hundred years, the last remnants of humanity have lived inside a fortified city designed to protect them from a powerful race of man-eating giants referred to as Titans. The two races have locked each other into a stalemate: the Titans cannot breach the walls of the city and humanity cannot make war with the Titans without disaster.

Those facts held true until the day humanity received its "grim reminder": a colossal Titan smashed a hole in the perimeter wall of the village of Zhiganshina, which allowed its smaller kin to wander inside and wreak havoc. Three children escaped from the ensuing massacre: Eren Yeager, an aggressive adolescent boy; Mikasa Ackerman, his quiet adoptive sister; and Armin Arlert, Eren's bookish best friend. The trio later decide to join the Survey Corps, a military branch dedicated to making excursions into the outside world to fight the Titans and research ways to defeat them once and for all -- and Eren, with murderous intent in his heart, vows to kill every last Titan on Earth.

Despite the action-y sounding premise of ''Attack on Titan'' (and it does contain a great deal of action), author Hajime Isayama also weaves a tight story around its [[LoadsAndLoadsOfCharacters large cast of characters]], and the strange, apocalyptic world in which they find themselves. ''Titan'' also revolves around the concept of failure: the humans repeatedly struggle to accomplish anything, often sacrifice their lives, and make major mistakes [[ShaggyDogStory to have it all come to naught in the end]]. Every so often, however, humanity's persistence, wits, and luck manages to pay off -- and through their victories, a complex portrait of the world begins to form (one that reveals [[OntologicalMystery something more sinister to the weirder aspects of their world]]). ''Titan'' primarily explores how people deal with trauma, survival, loss, and death... as they fight man-eating giants.

From its relatively modest beginning, the manga managed to become the 11th-highest seller of all time in 2011. After the premiere of the anime adaptation (which became exceptionally popular in its own right), sales of the manga boosted exponentially, which has made ''Titan'' the most popular new anime/manga and surpassing many established franchises. The manga consistently sold in the top two every month and new volumes are being surpassed only by a certain [[OnePiece best selling manga of all time]] and still growing. The success of both anime and manga launched a franchise ranging from video games to light novels to fragrances and coffee mugs.

Plans arose for a live-action film adaptation planned for a 2014 or later release, but production appears to have gone on hold due to CreativeDifferences [[http://www.animenewsnetwork.com/news/2012-12-13/director-nakashima-leaves-live-action-attack-on-titan between the director and the screenwriter]] (amongst other issues). The [[http://www.animenewsnetwork.com/interest/2012-12-05/yuuki-kaji-yui-ishikawa-marina-inoue-lead-attack-on-titan-cast anime adaptation]] premiered on [[Main/Spring2013Anime 5 April 2013]]; YasukoKobayashi served as head screenwriter and Music/HiroyukiSawano composed the series' music.

Viewers living in the United States, Canada, United Kingdom, and Ireland may watch the anime legally at [[http://www.crunchyroll.com/attack-on-titan Crunchyroll]] and [[http://www.hulu.com/attack-on-titan Hulu]]; as of 30 October 2013, [[http://www.crunchyroll.com/anime-news/2013/10/26/crunchyroll-to-digitally-distribute-kodansha-manga they can also read the manga on Crunchyroll]]. [[http://www.funimation.com/attack-on-titan Funimation]] (which licensed the show for the United States) also streams the show, along the usual lines of subscribers getting it first and free viewers gaining the opportunity to watch it later. In Australia and New Zealand, Creator/MadmanEntertainment has the series available for viewing on [[http://www.animelab.com/shows/attack-on-titan Anime Lab]]. Creator/{{Toonami}} began airing the dubbed version of ''Titan'' as of [[http://toonami.tumblr.com/post/82537856899/attack-on-titan-is-coming-may-3rd-at 3 May 2014]]. And just in case you really don't like any of those options, there's always [[http://movies.netflix.com/WiMovie/Attack_on_Titan/70299043?trkid=13641907 Netflix.]]

''Titan'' has spawned numerous {{Spin Off}}s, across multiple media formats, out of its once-meager success:

* ''Before The Fall'': A LightNovel prequel series that details the creation of the Maneuver Gear and the battles of one young survivor of a Titan attack. Satoshi Shiki now helms a manga adaptation of this story.
* ''A Choice with no Regrets'': A VisualNovel and manga adaptation, written by Gan Sunaaku and illustrated by Hikaru Suruga; this prequel details Levi's recruitment into the Survey Corps.
* ''Lost in the Cruel World'': A visual novel about Mikasa.
* ''Burning Brightly in the Forest of Night'': A visual novel about Levi and Eren.
* ''Wall Sina, Goodbye'': A visual novel about Annie.
* ''Attack! Titan Junior High'': An on-going manga series by Saki Nakagawa and supervised by Hajime Isayama; a SpinoffBabies SliceOfLife comedy, the story takes place in a [[HighSchoolAU Middle School AU]].
* ''The Last Wings of Mankind'': A Nintendo3DS game based on the series.
* ''The Wings of Counterattack'': A mobile/browser game.

A [[http://fenglee.com/game/aog/ fan-made tribute game]] also exists, as does [[VideoGame/AttackOnTitanTributeGame an individual trope page]] for the game.

This series has both a [[Characters/AttackOnTitan Character Sheet]] and a [[DrinkingGame/AttackOnTitan drinking game]].

Don't confuse ''Attack on Titan'' with ''Series/GiantKilling'' or ''ComicBook/IKillGiants''. Fans frequently shorten the Japanese title (''Shingeki no Kyojin'', which means ''Advancing Giants'') to SNK, [[NamesTheSame though the series has nothing to do with]] ''that'' Creator/{{SNK}}. Speaking of confusing acronyms, this AOT is not to be confused with ''VideoGame/AgeOfTime''.

'''NOTE: Please do not read the spoilers if you've only watched the anime; from here on out, spoilers also include information about the manga.'''

----
!! On that day, TV Tropes received a grim reminder: we lived in fear of the Tropes and were disgraced to live in these cages we called folders.

[[index]]
* AttackOnTitan/TropesAToF
* AttackOnTitan/TropesGToL
* AttackOnTitan/TropesMToR
* AttackOnTitan/TropesSToZ
[[/index]]

----
[[TrueCompanions O mein Freund!]] [[VictoryByEndurance Jetzt hier ist ein Sieg. Dies ist die erste Gloria.]] [[CrowningMusicOfAwesome O mein Freund!]] [[GratuitousGerman Feiern wir diesen Sieg]] [[WeWillMeetAgain für den nächsten]] [[LastStand Kampf!]][[labelnote:Translation]][softreturn] "O, my friend! This here is a victory. This is our first honor. O, my friend! Let us celebrate this victory until the next fight!"[[/labelnote]]

----