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Fate Extra : The Music of the Spheres by celian Cogitore reviews
And in its dark ages, even death can die... 2099, a tragic time, a world ravaged by war and where corruption reigns. As the end of the world seems imminent, a hibernation capsule containing the last Master reappears. With the awakening of Hakuno Kishinami a new Grail War begins!
Crossover - Fate/stay night & Cthulhu Mythos - Rated: M - English - Supernatural/Sci-Fi - Chapters: 9 - Words: 39,113 - Reviews: 26 - Favs: 22 - Follows: 36 - Updated: 4/9 - Published: 1/23 - [Hakuno K., Tamamo] Gilles de Rais/Bluebeard, Jeanne d'Arc
AberrantTale by JaceEthaniel
After freeing monsters from the Underground, Frisk does their best to make everything right in a cruel world; but cruel is just the tip of the iceberg. The surface is plagued with magic infused creatures created by the Barrier Incident, forcing the near-extinct humans and monsters to fight for their lives; while evil forces also plan their destruction from within the shadows.
Crossover - Undertale & Cthulhu Mythos - Rated: M - English - Horror/Adventure - Chapters: 23 - Words: 168,912 - Favs: 3 - Follows: 4 - Updated: 4/8 - Published: 2/13 - Frisk, OC, Chara, Flowey
Revival by RobbyA reviews
When the family dog is tragically ripped from the mortal coil, Lana meets a strange girl claiming that she has the means of bringing him back.
Crossover - Loud House & Cthulhu Mythos - Rated: T - English - Chapters: 13 - Words: 37,099 - Reviews: 6 - Favs: 2 - Follows: 3 - Updated: 4/5 - Published: 12/26/2019 - Complete
Nevermore Sweetling by Ordon reviews
Qrow Branwen has long stood alone as the guardian of humanity against the various insane cultists and monsters that seek to bring destruction. Now however, he must make an unlikely alliance to protect a young champion who will prove key to defeating the darkness that comes.
Crossover - Cthulhu Mythos & RWBY - Rated: M - English - Adventure/Horror - Chapters: 56 - Words: 201,840 - Reviews: 34 - Favs: 107 - Follows: 121 - Updated: 3/30 - Published: 8/11/2016 - Jaune A., Winter S., Qrow B.
The Earth the Sky and Creation by Everythingiswater
3 years after the war with the Giants our hero Percy Jackson finds himself in an apocalyptic situation as 3 entities appear at the borders of Camp Half-Blood. these 3 beings hold a tremendous and terrifying amount of power, power that other beings of the universe and different dimensions crave to possess. Mega crossover story. Please be nice I'm still new to this.
Crossover - Percy Jackson and the Olympians & Cthulhu Mythos - Rated: T - English - Adventure/Horror - Chapters: 3 - Words: 5,792 - Favs: 4 - Follows: 6 - Updated: 3/29 - Published: 3/17
Monsters Inside by Moratorium19 reviews
When Izuku is offered the opportunity to join the villains in their quest to slaughter the heroes, he hesitates for a split seconds. Then, he reflects it does not change from his routine, and at least it will sate the ravenous hunger splitting his insides and quartering him. To Shigaraki Tomura, having Izuku aboard is like entering a cheat code.
Crossover - Cthulhu Mythos & My Hero Academia/僕のヒーローアカデミア - Rated: M - English - Adventure/Angst - Chapters: 7 - Words: 16,987 - Reviews: 2 - Favs: 33 - Follows: 39 - Updated: 3/23 - Published: 3/15 - Izuku M., Katsuki B., Shouto T. - Complete
Worm: Babel by Baked The Author reviews
There is always a greater power. This fact holds true no matter one's position within the halls of creation. That one of those powers would take offense to the Entity's predations is inevitable. That this same power would take an interest in Taylor Hebert is merely an example of causality in action.
Crossover - Cthulhu Mythos & Worm - Rated: T - English - Horror/Mystery - Chapters: 12 - Words: 71,138 - Reviews: 254 - Favs: 1,184 - Follows: 1,333 - Updated: 3/10 - Published: 6/8/2019 - Skitter
It's a Lovecraft Monster, Charlie Brown! by ImGonnaWriteAFanfic
Can the day be saved when Cthulu is destroying Earth?
Crossover - Peanuts & Cthulhu Mythos - Rated: K - English - Suspense/Horror - Chapters: 1 - Words: 167 - Published: 2/26 - Charlie Brown, Lucy V. - Complete
The Statement of Jonas Grumby ex-Skipper of the Minnow by Dabbled-at-Euchre
Warning-NOT FOR THE FAINT OF HEART. The Skipper's sanity is damaged.
Crossover - Gilligan's Island & Cthulhu Mythos - Rated: T - English - Horror - Chapters: 1 - Words: 2,812 - Published: 2/24 - Skipper - Complete
D&d : the drunk and dying tour by alexrusso89
Branching off from my Acquisitions Incorporated story. Jessi is homeless now, however she meets up wih old friends and new friends as they adventure from their base at Troll Skull Manor
Crossover - Dungeons and Dragons & Cthulhu Mythos - Rated: M - English - Fantasy/Humor - Chapters: 2 - Words: 1,651 - Published: 2/11
Acquisitions Incorporated by alexrusso89
Acquisitions Incorporated are back in a anthology series based on pennyarcade's series plot is my own
Crossover - Dungeons and Dragons & Cthulhu Mythos - Rated: M - English - Horror/Supernatural - Chapters: 11 - Words: 9,995 - Updated: 2/11 - Published: 8/4/2019
Mythos Effect by Omniscent1 reviews
A crossover between Mass Effect and Cthulhutech. Humanity has won the Aeon War and has since expanded and thrived. How will the galaxy fare with this new power?
Crossover - Cthulhu Mythos & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 20 - Words: 136,941 - Reviews: 1194 - Favs: 3,294 - Follows: 3,773 - Updated: 2/8 - Published: 6/5/2013 - Saren A., Shepard
RWBY Noir by Wombag1786 reviews
"The most merciful thing in the world, I think, is the inability of the human mind to correlate all its content." In 1919, the world has seen the horrors of the great war come to an end, yet forces behind the vale of sanity work and worm into the booming new world. Thankfully, humanity will not be alone in this madness. Though Madness, may prove to be a Blessing then Sanity.
Crossover - Cthulhu Mythos & RWBY - Rated: M - English - Mystery/Horror - Chapters: 4 - Words: 62,093 - Reviews: 17 - Favs: 10 - Follows: 9 - Updated: 12/31/2019 - Published: 10/16/2019 - OC, Team RWBY, Team RNJR
Proper Care Of A Stray by Jaycren reviews
They Say That Curiosity Killed The Cat But Satisfaction Brought Her Back. Who Is This Cute Boy, So Intent On Walking Toralei To School? ToraleixOC, Minor Lovecraftian influences. Fluffiness incoming.
Crossover - Cthulhu Mythos & Monster High - Rated: T - English - Romance/Friendship - Chapters: 7 - Words: 8,610 - Reviews: 4 - Favs: 8 - Follows: 11 - Updated: 12/28/2019 - Published: 6/15/2018 - Toralei, OC
NGE: Screams of Nightmares by Beastrider9 reviews
There are things out there far worse than the Angels. One of them has taken notice of the Events of Tokyo-3 and has machinations and plans of his own. He is Nyarlathotep, the Crawling Chaos.
Crossover - Evangelion & Cthulhu Mythos - Rated: T - English - Horror/Sci-Fi - Chapters: 6 - Words: 36,634 - Reviews: 33 - Favs: 73 - Follows: 88 - Updated: 12/23/2019 - Published: 11/24/2019
Resurrected legacy by alexrusso89 reviews
Star and her family destoryed the magic or so they thought now te magic has returned however its not the same mysterious monsters and gods are appearing and its upto the resurrected high magic commision and its new member Star, can they solve the mystery
Crossover - Cthulhu Mythos & Star Vs. The Forces of Evil - Rated: M - English - Horror/Fantasy - Chapters: 3 - Words: 2,953 - Reviews: 1 - Follows: 3 - Updated: 12/21/2019 - Published: 12/20/2019 - Star B., Hekapoo, Rhombulus, Omnitraxus P.
Cove of the Apostates by Benestro
"Rage away, you hateful bastard! Curse me for all time as you did those below, for I am now among their number! I am an Apostate!"
Crossover - Conan series & Cthulhu Mythos - Rated: T - English - Fantasy/Horror - Chapters: 1 - Words: 8,883 - Published: 12/17/2019 - Complete
Shadows of a Sick Sad World by Courier999 reviews
When Daria, Jane, and Quinn accidentally stumble upon a cult ritual in the Zon's basement, they soon find themselves drawn into the ongoing conflict between mankind and the various gods and monsters of the Mythos. Rated T for language, violence, and scary content. R&R!
Crossover - Daria & Cthulhu Mythos - Rated: T - English - Humor/Horror - Chapters: 5 - Words: 4,409 - Reviews: 6 - Favs: 1 - Follows: 1 - Updated: 12/13/2019 - Published: 11/25/2019 - Daria M., Quinn M., Jane L., Mr. DeMartino,
Rwby the Wrath of Cthulhu by darksidersfollower97 reviews
The primordial god of darkness, terror, and death. Cthulhu come to Remnant and it up to Ruby and her team and friends must find a way to defeat Cthulhu and help save the multiverse. My Co-writer will help Cthulhu belongs to H.P Lovecraft, and Rwby roosterteeth
Crossover - Cthulhu Mythos & RWBY - Rated: T - English - Spiritual/Angst - Chapters: 1 - Words: 703 - Reviews: 2 - Favs: 2 - Follows: 1 - Published: 12/3/2019 - Ruby R., Team RWBY
The Formless Fear by chilled monkey reviews
An ancient horror is accidentally released in the Tokyo subway. It's up to Murasaki and Sakura to stop it!
Crossover - Cthulhu Mythos & Taimanin Asagi - Rated: M - English - Horror/Supernatural - Chapters: 1 - Words: 2,664 - Reviews: 1 - Favs: 2 - Follows: 2 - Published: 10/31/2019 - Complete
The Call by Hitsuzen278 reviews
Fueron elegidos. Ella podía verlos y describirlos verbalmente, pero no transcribirlos al papel. Él podía verlos y transcribirlos con tinta, sin embargo las palabras morían en su garganta. Fueron elegidos por ellos. Eran cronistas, y esta era su llamada. ONE-SHOT
Crossover - Harry Potter & Cthulhu Mythos - Rated: M - Spanish - Horror/Mystery - Chapters: 1 - Words: 3,742 - Reviews: 4 - Favs: 10 - Follows: 11 - Published: 10/10/2019 - Harry P., Voldemort, Luna L. - Complete
Shadow over Okinawa by chilled monkey reviews
While on holiday in Okinawa Tadashi and Kaori encounter not the Death Stench, but a different evil from beneath the sea. AU. OVA/movie version.
Crossover - Gyo & Cthulhu Mythos - Rated: T - English - Romance/Horror - Chapters: 4 - Words: 5,784 - Reviews: 6 - Favs: 3 - Follows: 2 - Updated: 9/20/2019 - Published: 10/31/2018 - Complete
The Mark of Nyarlathotep by Argonaut57 reviews
On the Eve of May, 2006, and English Auror walks the streets of ancient and witch-haunted Arkham. A trail of madness, murder and ancient lore has brought Harry Potter here. On an uninhabited island in the Miskatonic River, he is about confirm his worst suspicions about the source of Voldemorts' power, and origin of the Dark Mark.
Crossover - Harry Potter & Cthulhu Mythos - Rated: M - English - Horror - Chapters: 1 - Words: 3,969 - Reviews: 3 - Favs: 11 - Follows: 7 - Published: 9/10/2019 - Complete
Call of the Chosen by Aganos reviews
There are many gods in this world that have left their mark in several civilizations. You have the Greek, Egyptian, and Norse. But what about the gods not of this world or even dimension. Gods whos forms and power and far beyond that of mortal comprehension. Just as the Greeks have their demigods, here are their Chosen.
Crossover - Percy Jackson and the Olympians & Cthulhu Mythos - Rated: T - English - Horror/Adventure - Chapters: 4 - Words: 11,970 - Reviews: 6 - Favs: 20 - Follows: 28 - Updated: 9/3/2019 - Published: 10/18/2018
Horror on the Hogwarts Express by HippoParty reviews
There have been many rumours about what happened on the 1st September 2019. Now on the unexpected death of her father, Violet Potter would finally come to learn the truth of how her siblings, James, Albus and Lily perished on the Hogwarts Express.
Crossover - Harry Potter & Cthulhu Mythos - Rated: M - English - Horror/Mystery - Chapters: 1 - Words: 3,049 - Reviews: 2 - Favs: 6 - Follows: 7 - Published: 9/1/2019
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