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* Fighter in ''Webcomic/EightBitTheater'' goes on one against Lich after [[spoiler:Black Mage is killed by Lich.]]
* ''Webcomic/{{Asperchu}}'' has a very sad one. The creature takes Sonichu and Asperchu to the Twin CWC Towers and tells Sonichu his father is here. He automatically assumes Ian Brandon Anderson and starts to hunt him down. The trope is played with when [[spoiler:a) his Rampage of Revenge tears through people he once called allies; b) his attack destroyed the towers, something Ian is blamed for; and c) Ian wasn't the one Argentum was talking about - it was Asperchu!]]
* In ''Webcomic/ElGoonishShive'', due to [[spoiler: Blaike Raven's]] [[http://egscomics.com/comic/2016-07-13 death by werewolf]], Pandora goes on one of these [[http://egscomics.com/comic/2016-12-21 resulting in the eradication of werewolves worldwide]].
* ''Webcomic/GirlGenius'':
** Zeetha was captured by pirates on her way to visit the wider world from her home, a "lost" city in the jungle, and her crewmates were killed. She slaughtered every pirate on the ship, shot down the rest of their fleet, and burnt down their stronghold. Only then did she realize she didn't know how to get back home and had just killed everyone who did.
** Additionally, Agatha herself has a smaller rampage of revenge when Baron Wulfenbach [[spoiler: kills Lars, one of her love interests.]] She drops a chicken house on him.
** Gil promises to Wooster that, should he learn that [[LoveInterest Agatha]] has become a pawn of [[GodQueen Albia]] once she takes refuge in England, [[https://www.girlgeniusonline.com/comic.php?date=20060306 he will melt the island and boil the surrounding seas for a thousand years]]. A terrified Wooster [[MyGodYouAreSerious immediately realizes that Gil is being dead serious]] and runs to secure Agatha's safety.
** In [[http://www.girlgeniusonline.com/comic.php?date=20101020 this comic]], Higgs is [[NoHoldsBarredBeatdown not very happy]] [[spoiler:after Zeetha gets stabbed through the chest by Zola]].
* Clark goes [[http://www.goldcoincomics.com/?id=129 berserk and takes revenge]] in ''WebComic/GoldCoinComics''.
* ''Webcomic/{{Homestuck}}'':
** Vriska's "[[https://homestuck.com/story/2578 Make Her Pay]]" rallies everyone into rampage. Subverted with a punishing smackdown when she gets into the act.
** [[spoiler: Rose]] goes on one after discovering [[spoiler: her mother's death]]. She gives in more so after [[spoiler: watching John getting run through by Bec Noir.]]
** [[spoiler: PM]], after watching Jack kill pretty much everybody she ever cared about.
** Kanaya goes into one following [[spoiler:her death and return]]. It takes her about twenty seconds to disable two of the trolls she's fighting and introduce the third to her chainsaw.
* ''Webcomic/ImTheGrimReaper'': After Chase sees [[spoiler: Scarlet takes a bullet for him]] and he thinks she's died, he snaps at the would-be killer, tells him that since he killed her, he'll kill him, and nearly succeeds in beating him to death with his bare hands.
* Go read Rowasu's RoaringRampageOfRevenge from ''Webcomic/{{Juathuur}}''.
* In a ''Webcomic/KillSixBillionDemons'' side-story, [[CardCarryingVillain Aesma]] fell in love with the Red-Eyed King, the only being who could possibly match her evil. However, he only saw her as a means to an end and, once she had restored him to his former glory, harshly rejected her proposal for UnholyMatrimony and struck her with his sword which cut 36 ways. Aesma's wrath was such that she threw entire ''planets'' at the king and eventually prepared to rend apart all of creation unless he yielded. [[KnowWhenToFoldEm He wisely did so.]]
** The Demiurge Yemmod once attacked the world of Rayuba and burned its cities to the ground before spending the next few years pillaging it until not even the sun was left. The Monks of the Silent Voice, who had mastered the art of Ki Rata which would allow them to defeat Yemmod, [[AccompliceByInaction stood by and did nothing]] because it would violate their ActualPacifist teachings; however, they did take in one of the few survivors of Rayuba and taught him Ki Rata in the hope that their teachings would steer him away from his path of vengeance. Once he had mastered Ki Rata, the man used it to slaughter the entire order for their inaction before hunting down Yemmod, slaying him and taking his Key, becoming the Demiurge [[spoiler:Solomon David]].
** One from the main story: [[spoiler:during the Discordance of Demiurges, Jagganoth devastates Rayuba, destroying all that Solomon had been working for after killing Yemmod and obliterating his pretensions that [[UtopiaJustifiesTheMeans all the things he had to do were necessary]]. Solomon proceeds to ''lose it'' and unleashes the full power of his Ki Rata against Jagganoth, hitting him with enough force to create a black hole and knock him through multiple worlds before finishing up by [[HeroicSacrifice punching Jagganoth so hard that it creates a Kugelblitz which may have killed them both.]]]]
* In ''Webcomic/{{Niels}}'', the [[DepravedBisexual titular character]], jealous of Agent 250 for the attention he receives from Agent 300, [[spoiler: shoots Agent 250. In the stomach. At point-blank range. In front of Agent 300.]] The death glare that Niels fails to notice from 300 is the only clue we get to the rampage, as the next panel deems it "too violent to show". We do however, see the aftermath of the rampage: [[spoiler: Niels has had his arm broken and his eye shot out ''with his own gun'', Duncan's nose is broken, and a number of Niels' mooks are filling the other hospital rooms with undisclosed injuries, necessitating that the still-alive 250 share his room with Niels. 300, to his credit, comes out relatively unscathed]].
* A [[http://www.giantitp.com/comics/oots0626.html story arc]] in ''Webcomic/TheOrderOfTheStick'' features this. Vaarsuvius, the party's [[AmbiguousGender ambiguously-gendered]] elven mage happens to disintegrate a black dragon youngling only to later meet its [[MamaBear angry grieving black dragon mother]]. She then unfolds a terrible vengeance plan involving [[spoiler:V's own children and [[FateWorseThanDeath horrific necromantic feats]] - a plan the weakened V is powerless to stop… or so it seems until they strike a [[DealWithTheDevil deal with demons]] and end up [[SuperpoweredEvilSide harnessing the power of 3 evil archmage souls]]....and then goes on a superpowered Roaring Rampage Of (Pre-emptive) Revenge on Mama Dragon for daring to [[KnightTemplarParent target V's family]]. Say hello to the epic spell: [[ThereIsNoKillLikeOverkill Familicide]].]]
** Years before the main story, a group of Paladins massacred a defenceless goblin village in order to kill the Bearer of the Crimson Mantle, who was residing in the village. Unfortunately for Azure City, one of the goblins survived and became the new Bearer of the Crimson Mantle. That goblin is Redcloak, TheDragon to Xykon, who goes on to lead a full scale goblin invasion of Azure City, annexe it, enslave the human survivors, drive the few remaining Paladins into exile and establish the first sovereign goblin nation on the site of the city.
** Redcloak's deity the Dark One has his origins in this. He was originally a goblin leader who [[WellIntentionedExtremist only fought humanity to make life better for his people]]; however, when human leaders [[AggressiveNegotiations invited him to negotiate and then betrayed and killed him]], his enraged armies declared all-out slaughter against the human side of the conflict and slew so many humans in his name that he was able to ''ascend to godhood'' off the back of it.
* In ''Webcomic/{{Plume}}'', after her father dies, Vesper sets her mind on this, despite Corrick attempting to convince her not to.
* In ''Webcomic/RustyAndCo'', the princess goes on one when [[spoiler:her wight boyfriend is turned]].
* ''Webcomic/SchlockMercenary'': After [[HeroicComedicSociopath Schlock]] is thrown in jail and [[MyGodWhatHaveIDone grows a conscience]], he becomes uncharacteristically unenthusiastic at the prospect of wanton violence and mayhem. This changes when told that [[spoiler:[[TheCaptain Tagon]] has [[https://www.schlockmercenary.com/2016-09-19 just been killed]]]] during the Toughs' latest mission, upon which [[https://www.schlockmercenary.com/2016-09-24 he grabs]] an [[WalkingArmory entire locker's worth of guns]] and, backed by [[BearsAreBadNews Landon]], [[TalkingWeapon Tenzy]] and a few volunteers from [[LawEnforcementInc Sanctum Adroit]], [[BigDamnHeroes goes on a rampage]] against [[https://www.schlockmercenary.com/2016-09-27 the perpetrators]].
* In ''Webcomic/SluggyFreelance'' Oasis has gone on a couple of these against Zoe for [[LoveMakesYouEvil taking Torg's affection away from her]].
* The catgirls in ''Webcomic/SomethingPositive''. Apparently they weren't enjoying the convention; "They cancelled the fanfic panels. The con banned the sale of yaoi. The ''[[Literature/TheTwilightSaga Twilight]]'' panel was nothing but heckling of all the books." The guy on the comics panel telling them their favourite comic sucked and Jason calling them out for overreaction when they killed him just pushed them over the edge.
* In the ''Webcomic/TeamFortress2'' comics, Modern (RED) Heavy goes on one directed towards Classic Heavy after he kills (Modern, RED) Medic. One of the only moments in the comics played completely seriously [[MoodWhiplash until it cuts to Medic in Hell]], where he's [[DealWithTheDevil arguing with the Devil]].
* ''Webcomic/TowerOfGod'':
** Ha Jinsung went and killed an entire branch of one of the [[DecadentCourt 10 Great Families]] when they tried to buy the woman he loved as a slave.
** Anaak Jahad attempted this, when she entered the Tower to kill the entire Jahad family for the deaths of her parents at the hands of one of their members, her own ''aunt''. [[spoiler: She instead is soundly beaten by the first Jahad she meets and even ends up becoming her ally.]]
* In ''Webcomic/VoldemortsChildren'', Harry is (so far) implied to have gone on a killing spree as a result of prior mistreatment.
* From ''Webcomic/WalkyVerse'': "The place reeked of Martians. I don't know why, but they killed him. So I killed the Martians." [[spoiler:[[SubvertedTrope But]] [[GambitRoulette not]] [[TomatoInTheMirror really]].]]
* In ''Webcomic/WeakHero'', Gray goes on a rampage against the bullies responsible for hospitalising his best friend Stephen. After training his body to the point that he's able to make use of the [[BadassBookworm various techniques he's studied]], Gray lures them into the classroom and then utterly demolishes them. Gray freely admits that he's crossing the line with how brutally he beats them up, and also that he doesn't ''care''.
* ''Webcomic/YetAnotherFantasyGamerComic'' has Jone going after a bunch of people that abused and blackmailed her and her mother shortly after the Orc god came to her in a vision.
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