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->''"When the Christian crusaders in the Orient came across that unconquered Order of Assassins, that free-spirited order par excellence, whose lowest ranks lived a life of obedience of the sort no order of monks attained, then they received by some means or other a hint about that symbol and motto, which only the highest ranks kept as their secret, '''"Nothing is true. Everything is permitted."''' . . . Well now, that was spiritual freedom. With that the very belief in truth was cancelled. . . Has a European, a Christian free spirit ever wandered by mistake into this proposition and its labyrinthine consequences?"''
-->-- '''Creator/FriedrichNietzsche''', ''On the Genealogy of Morals''.

The Hashshashin were an Islamic community in UsefulNotes/TheMiddleEast around the time of UsefulNotes/TheCrusades, who both [[TropeNamer named]] and [[TropeCodifier codified]] the [[ProfessionalKiller Assassin]] archetype[[note]]Notice the similarity between the words "assassin" and "hashshashin"? [[TropeNamer That's not a coincidence]][[/note]], though only a few know to what extent their image has been {{Flanderized}} since then.

Originally they were an esoteric UsefulNotes/{{Islam}}ic {{cult}}--usually classified as a radical offshoot of the Isma'ili sect of Shi'a Islam--founded by Hassan-i Sabbah, who was born of a Twelver Family, who had converted to Isma'ili, and then later broke off from them to form Nizariyya, an Isma'ili offshoot. They were a society of [[TropeNamer assassins]] operating from the mountain fortress [[SupervillainLair Alamut]] and terrorizing the region's rulers with their attacks. Despite their fearsome reputation, the Hashshashin were said to be [[WouldNotShootACivilian quite friendly towards common folk]], since their killings were actually carefully targeted and planned, rather than random acts of violence. Allegedly, Hashshashin recruits were drugged with hashish (the word ''hashish''[[note]]Which originally meant "grass" in Arabic--stoners everywhere think alike[[/note]] is the source of the name), led to a paradisical garden [[{{Fanservice}} full of lush greenery and beautiful women]] (supposedly a glimpse of the Islamic paradise), and then told that only the "Old Man of the Mountain" had the means to let them return (i.e. if they died as martyrs), which resulted in [[BrainwashedAndCrazy their fanatical devotion]]. There is no historical evidence whatsoever of hashish being used for anything else but medicinal purposes, and the connotation of the Assassins being drug-addicts was given to them by their enemies and by polemicists who were seeking to discredit the Assassins and the Nizari. Their downfall came when [[MuggingTheMonster one of their strikes reached]] [[AlwaysABiggerFish the Mongols]], who razed Alamut during their conquest of Persia.

In fiction, UsefulNotes/TheKnightsTemplar are often positioned as the {{Rival}}s and [[ArchNemesis Arch-Nemeses]] of the Hashshashin (and the two are often found alongside each other in {{Conspiracy Kitchen Sink}}s); this can be quite frustrating to people who know the region's history, since Crusaders--though not necessarily the Templars themselves--were often ''allies'' of the Shia Assassins, since they shared a common enemy (i.e. the Sunni Turkish and to a lesser extent Kurdish and Arab lords who ruled the region, including Zengi and [[UsefulNotes/TheCrusades Saladin]]). Compare {{Ninja}}s, the Far Eastern counterpart.

For more historical information see UsefulNotes.TheHashshashin.

!!References to the Hashshashin in fiction:


[[folder:Anime & Manga]]
* In episode 14 of ''Anime/KiddyGrade'' ("Steel/Heart"), [[spoiler:Tweedledee infects La Muse and Donnerschlag with a virus called "hashish," which, she mentions, is the name of a drug used in ancient times to give one the willpower to kill even a member of their own family.]] AndThatsTerrible.
* ''Anime/GhostInTheShellStandAloneComplex'': when exploring Kuze's background as a [=JSDF=] soldier in World War IV, the Hashashin are directly referenced as a derisive comparison to the soldiers in Kuze's unit, who had gotten a lot of bad press for almost effortlessly defeating a Korean insurgent group that had been weakened by a terrible winter and lack of food and was completely outmatched by the all-cyborg [=JSDF=] unit. It didn't help that a lot of the Japanese soldiers had turned to smoking hashish -- the Assassins' drug of choice -- to deal with the stress afterwards, only strengthening the parallels in the eyes of one reporter. It's this direct comparison which leads to Kuze going [=AWOL=] and eventually becoming the BigBad AntiVillain of the second season.
* ''VisualNovel/FateStayNight'': One of the standard classes of Heroic Spirit is directly called Assassin, and in almost all of the Holy Grail Wars (at least [[RetCanon originally]]) the Assassin figure was none other than Hassan-i Sabbah, one of the most famous leaders of the historical Hashshashin. (More precisely, it was one of the leaders of the order [subsequently distinguished as "Hassan of the Cursed Arm", who in ''Fate'' continuity all bear this name).
** The prequel ''LightNovel/FateZero'' also features another Hassan-i Sabbah, dubbed "the Hundred-Faced Hassan" and is noted to be the last person to have ever taken up the name. This entity manifests as multiple separate bodies with different skills/purposes.
** Another AlternateUniverse prequel, ''Anime/FatePrototype: Fragments of Sky Silver'' features another Hassan, named "Hassan of Serenity," and is one of the Hassans known to be of female gender who specializes in poisons.
** ''Literature/FateStrangeFake'' has two examples:
*** False Assassin, also known as No Name Assassin and Beautiful Assassin, was a member of the Hashshashin who aspired to become Hassan-i Sabbah. She was passed over for Hundred-Faced Hassan, both because she was a religious zealot, and because while she could copy assassination techniques, she could not come up with an original one. Nonetheless, as a Servant, her Noble Phantasm, Zabaniya: Phantasmal Pedigree, allows her to copy the techniques of the 18 previous Hassans, except for Hundred-Faced Hassan's.
*** True Assassin is a proper Hassan-i Sabbah. He has the power of a ShadowWalker.

[[folder:Comic Books]]
* ComicBook/JonahHex fights a Hashshashin brought to the WildWest as part of a CarnivalOfKillers during the "Six Gun War" storyline.
* Creator/DCComics supervillain ComicBook/RasAlGhul leads an expy organization, the ancient League of Assassins.
* In one story of the ''ComicBook/ConanTheBarbarian'' comic book, he ran into a cult that was an obvious {{Expy}} of the Assassins, including the [[FanService Garden of Paradise]].

[[folder:Films -- Live-Action]]
* Part of the antagonist force in the ''Film/PrinceOfPersiaTheSandsOfTime'' movie. Curiously, Alamut is featured in the film, but it is not their main hideout.

* ''Literature/TheDestroyer'' series of novels, being about assassins with an ancient heritage, naturally mention the Hashshashin.
* In ''Literature/FoucaultsPendulum'', the Templars learned from the Hashshashin during the Crusades to discover the secret of [[spoiler:harnessing the power of telluric currents]].
* There were a few {{Flashback}}s featuring the Hashshashin in ''Literature/TheIlluminatusTrilogy''.
* TheDragon from ''Literature/AngelsAndDemons'' ''is'' a Hashashin, though the book portrays them as crazed, chaotic assassins.
* Parodied in ''Literature/{{Discworld}}'' with [[TheStoner the hashishim]], who are "inclined to giggle, groove to interesting patterns of light and shade on their terrible knife blades and, in extreme cases, fall over."
* Vladimir Bartol's novel ''Alamut'' embraces most of the historical legends of the hashshashin, and was the main inspiration for ''Franchise/AssassinsCreed''.
* The Mongols go up against the Hashashin in the third ''Literature/{{Conqueror}}'' book; aghast by the group's cowardly and bloodthirsty ways. Genghis Khan personally kills the Old Man.
* Mack Bolan, Literature/TheExecutioner, fought a revitalized cult in ''Assassin's Code''. The Assassins in this one recruited various mercenaries including {{Ninja}}s, Thugee, and a rogue UsefulNotes/{{Mossad}} agent.
* ''Literature/{{Baudolino}}'': One of Baudolino's TrueCompanions managed to escape the fortress. The assassin's loyalties were secured by chaining them to the ground and feeding them haschich, when the high wore off they were told the only way to go back was to kill for the Old Man.

[[folder:Live-Action TV]]
* They appeared in both ''Series/RobinOfSherwood'' as a dangerous sect and in the BBC's ''Series/RobinHood'' as an AmazonBrigade. In ''Series/RobinOfSherwood'', regular character Nasir is a former member of the group.
* ''Series/MacGyver1985'': In "The Legend of the Holy Rose", the Brotherhood of the Hashshasin is one of the villainous groups after the Elixir of Life supposed to be stored in the Temple of the Holy Rose. They betray their partner in crime and shoot him as he is not a true believer and therefore does not deserve eternal life.

* Music/{{Hawkwind}}'s song "Hasan i Sahba" links the Hashshashin to modern Islamic fundamentalists.
* The song "Garden of Light" by Isis, a post-metal band, refers subtly to the Hashashin recruitment procedure.
* [[http://www.youtube.com/watch?v=4sPNoE8LxlA "Wine of Aluqah"]] by Therion. "Know that nothing's true and that everything is permitted,/So read the Old Man of the Mountain in his Book of Lies".

[[folder:Tabletop Games]]
* The ''TabletopGame/DungeonsAndDragons'' ''Al-Qadim'' setting has numerous "Holy Slayer" groups inspired by the Hashshashin. Adventure [=ALQ2=] ''Assassin Mountain'' has the Everlasting, a cult that live in a mountain that are clearly based on them.
* In the wargame ''TabletopGame/{{Infinity}}'', Hashashin are special troops that can be fielded by the Haqqislam faction, divided into four distinct types: snipers/poisoners, close-combat specialists, stealth experts who can pretend to be an enemy unit, and [[StuffBlowingUp explosives specialists]].
* The ''TabletopGame/LegendOfTheFiveRings'' CCG spin-off ''Legend Of The Burning Sands'' had a group called the Assassins in it, who excelled at killing in duels. While they were led by the "Old Man of the Mountain", most of the other characters in it were [[AmazonBrigade women]].
* ''TabletopGame/VampireTheMasquerade'' has the Assamites, a vampire clan associated with the Hashshashin (a rogue [[TheRenfield Renfield]] of theirs in the 12th/13th centuries used the cult to help him hunt vampires). The clan is based in Alamut (albeit not the Hashshashin's Alamut) and hires themselves out as assassins.
* In ''TabletopGame/{{Illuminati}}'', in which players control [[AncientConspiracy ancient conspiracies]], the Assassins are one.
* ''TabletopGame/HunterTheVigil'':
** The Ascending Ones are loosely based upon them, using magical Elixirs which work well for assassinations. In practice though they're a conglomerate of many different groups, many of whom aren't even Islamic.
** Ahl al-Jabal, an Islamic hunter compact introduced in ''[[TabletopGame/VampireTheRequiem Ancient Bloodlines]]'', trace their origins back to the historical Hashshashin. They target both mortal and supernatural threats to humanity, preferring to avoid harming bystanders and supernatural slaves. They're also ''very'' aware of how a group of insular Muslims who train in combat and carry weapons come across after 9/11, and so keep other hunters at a distance.

[[folder:Video Games]]
* The ''VideoGame/{{Gothic}}'' series features a blatant expy of them called the Hashishin, whose weapons are assassin style blades (and often coated with poison). Of course, they are also blatant stereotypes of classic Arabians in that they are very into economics as SeriousBusiness, not to mention a rather cliche habit of giving people [[OverlyLongName Overly Long Nicknames.]]
* The ''Franchise/AssassinsCreed'' series posits that the Hashshashin order was simply one part of the Crusades-era incarnation of a secret society of professional killers who have existed throughout human history, whose primary goal has been to use their skills and methods to preserve peace and protect the innocent from those who would abuse power. Their primary enemy are UsefulNotes/TheKnightsTemplar, another secret society with similar reach, but with [[KnightTemplar wildly]] [[TheEvilsOfFreeWill different]] [[TakeOverTheWorld goals.]] It turns out that the Assassins are [[spoiler: the descendants of Adam and Eve]], who were a pair of humans who [[spoiler: were {{Half Human Hybrid}}s created by [[{{Precursors}} the First Civilization]] and who were immune to the effects of the Pieces of Eden, allowing them to lead a rebellion against their masters.]]
* Bad Guys in ''VideoGame/LionheartLegacyOfTheCrusader''.
* ''VideoGame/LostSoulsMUD'' features the Nizari, a hybrid of the Hashashin and the Thuggee. ThisIsWrongOnSoManyLevels.
* ''Franchise/{{Nasuverse}}''
** Hassan-i Sabbah is a LegacyCharacter. Whoever is the master of Alamut must take the name and appearance of Hassan, and abandon their own identity. At least originally, the Fate series' Assassin-class Servants are generally required to be selected from the Hassan-i Sabbah; however, newer material [[RetCanon pretty much spells out anyone can be summoned as an Assassin if they meet the requirements]].
** In ''VisualNovel/FateStayNight'', a violation of the rules results in UsefulNotes/SasakiKojiro being summoned as an Assassin. [[spoiler:This is corrected in the Heaven's Feel route when Zouken summons a proper Hassan-i Sabbah as "True Assassin", which kills the original Assassin in the process. True Assassin proves to lack the limitations of the improperly-summoned original Assassin and is far more effective and dangerous.]]
** In ''VideoGame/FateGrandOrder'', all the three Hassans mentioned above from the ''Fate'' productions manifest as summonable Servants--all of them with varying levels of effective gameplay. However, all of them are blown away by their predecessor: the ''original'' Hassan-i Sabbah. This one eventually appears in both the sixth and seventh Singularities and is [[OlderIsBetter the most powerful of them, if not of all Assassins]], to the point that he could rival and likely surpass the likes of Gilgamesh and Karna in dangerousness, if not necessarily power. [[spoiler:He casually blocks the SwordBeam of Sir Gawain at his most powerful in the sixth singularity with only his blade and later forcibly imposes the concept of death upon an immortal Primordial Goddess in the seventh. He possesses the ability to be summoned as the "Grand Assassin", a right only given to the strongest of Heroic Spirits in a certain class.]]
* ''VideoGame/BrokenSword'' featured a mysterious murderer who turned out to be a Hashshashin trying to foil the plot of the Knights Templar villains. To quote two of those villains:
-->"Don't call that Syrian maniac the Hashshashin, he's just ''[[InsistentTerminology an assassin]]'' plain and simple."\\
"That's not what he believes. He actually thinks..."
* In ''VideoGame/MedievalIITotalWar'', Islamic factions can build Hashshashin Guilds in settlements where large numbers of spies and assassins are being recruited. Doing so improves the effectiveness of spies and assassins recruited there subsequently, as well as allowing the faction to produce specialized Hashshashin infanty units, which serve as small, elite heavy infantry capable of ambushing on the battlefield.
* Sadler, protagonist of Creator/TelenetJapan's ''VideoGame/{{XZR}}'' (or ''Exile'') series, is a Syrian assassin.