255 A Shield's Stand » by RandomA99 A video game like world and a bizarre ability don't always mesh together well, especially when there's a heroic shielder linking the two together. Crossposted on Ao3!
JoJo's Bizarre Adventure & Rising of the Shield Hero/盾の勇者の成り上がり, T, English, Adventure & Fantasy, chapters: 28, words: 198k+, favs: 457, follows: 555, updated: 14h published: 8/18/2020, Naofumi I., Raphtalia, Ren A., Rifana
510 The Overlord's Blessing on this Wonderful World » by Ryan CZ Delta Ainz finds himself in a mysterious world. Introducing himself as a warrior to the Adventurers Guild. Thinking about his alternatives he spots an interesting group who was putting posters up for new members. For the sake of gathering knowledge, he'll find himself tangled in the comedic troubles Kazuma and his party faces every day. So there it is, an Overlord for your Useless Party!
Overlord/オーバーロード & KonoSuba: God's Blessing on This Wonderful World, K, English, Humor & Drama, chapters: 20, words: 150k+, favs: 929, follows: 1k+, updated: 22h published: 4/3/2020, Ainz, Megumin, Darkness, Kazuma S.
46 Vestige of Warmth » by OmeganQueen A knight from a frozen dead world is thrust into the Continent, and learns how deadly the warmth of a world on fire can be. ( Rated M for obvious reasons )
Witcher & Dark Souls, M, English, Fantasy & Adventure, chapters: 29, words: 114k+, favs: 177, follows: 230, updated: 7/28 published: 10/22/2020, [Triss Merigold, OC] Geralt of Rivia, Ciri
150 Layers of Hell: Scorched Earth » by TheOriginalWriterGuy A Doom: Eternal x Hazbin Hotel crossover /\ As the Testaments bespoke of a 'Doom Slayer', who hath ravaged the heavens with his presence, assisted by a demonic princess from the Land of Hell, he is befallen with absolute rage as he comes to find Earth has once more been seized by demonic forces. And so, in his journey of revenge, he aims to purge Earth again, once and for all...
Doom & Hazbin Hotel, T, English, Adventure & Supernatural, chapters: 14, words: 57k+, favs: 190, follows: 236, updated: 7/26 published: 7/1/2020, Doomguy, Charlie, OC
36 The Guardian Zero » by Sir J Morningstar A guardian trapped on Mercury with jumbled memories of an impossible life of magic struggles to survive and overcome challenges in an unfamiliar solar system. She woke up with only a name and a thirst for knowledge befitting that of a warlock. Follow Louise on a quest for knowledge and an adventure to return to home, wherever that impossible place is.
Familiar of Zero & Destiny, M, English, Adventure & Sci-Fi, chapters: 14, words: 81k+, favs: 143, follows: 215, updated: 7/26 published: 11/12/2020
16 Into the Fire » by cmpmatthews When the Doctor and Donna land in the Enrichment Center of Aperture Science after 30 years of silence, they decide to explore. Little do they know that they are about to be tested to the max by a lonely, bored AI that had been dormant for 30 years prior.
Doctor Who & Portal, T, English, Sci-Fi & Adventure, chapters: 15, words: 19k+, favs: 16, follows: 28, updated: 7/23 published: 11/26/2013, 10th Doctor, Donna N., Chell, GLaDOS
21 Beyond our Borders » by maus69420 Gulch, a nation forgotten by the rest of Remnant, plans to reconnect itself with the rest of the world. But with new and never-before-seen threats that lay outside their walls, would that impede their efforts to make contact?
Red vs. Blue & RWBY, T, English, Sci-Fi & Adventure, chapters: 14, words: 30k+, favs: 50, follows: 62, updated: 7/19 published: 1/23
216 Familiar Evil » by trestwho Louise's summoning of her familiar was supposed to be the ultimate, final proof that she was truly a mage. But, instead she somehow found herself in a place called Raccoon City on an entirely different world. A world where magic didn't exist, and when that world falls apart, she and the boy who was supposed to be her familiar must fight for their lives against the evil around them.
Resident Evil & Familiar of Zero, M, English, Horror & Suspense, chapters: 9, words: 107k+, favs: 316, follows: 377, updated: 7/18 published: 10/9/2020, Mr. X, Louise, Saito
595 Welcome Home, Great Slayer » by Sir Yeetus Deletus His mission complete, his purpose fulfilled, the Doom Slayer is entombed once more. However, no force could contain him forever, and after millennia, he breaks free from the confines of the Ingmore Sanctum and leaves Hell. But, instead of arriving on a familiar world, the Great Slayer is sent tumbling to another—one he had saved in the past. One of devils, angels, and dragons.
Doom & High School DxD/ハイスクールD×D, M, English, Drama & Supernatural, chapters: 8, words: 92k+, favs: 1k+, follows: 1k+, updated: 7/18 published: 6/24/2020, Doomguy, A. Asia, Tiamat
497 Skiajati » by John Prodman In one plane of existence, Umbra is seemingly destroyed. In another, a Quirkless boy named Izuku walks out of a tunnel...
Warframe & My Hero Academia/僕のヒーローアカデミア, M, English, Adventure & Supernatural, chapters: 20, words: 204k+, favs: 1k+, follows: 1k+, updated: 7/18 published: 7/27/2018, Excalibur, Izuku M., Tsuyu A., Fumikage T.
199 The Walking DOOM » by ImpishDude2100 Finally, after defeating Olivia Pierce as the Spider Mastermind, the Slayer returns to Mars, only to have Dr. Samuel Hayden confiscate the Crucible for "better use" in his research. To keep our silent hero from intruding with his future layouts, Hayden teleports him to an undisclosed location, stating that they will meet again. In this new world, the Slayer has to fight once more.
Doom & Walking Dead, M, English, Sci-Fi & Horror, chapters: 20, words: 198k+, favs: 330, follows: 381, updated: 7/16 published: 7/28/2019, Doomguy, Rick G., Daryl D., Negan
506 Slayers » by BakaOniisan Doom Slayer got tricked by the demons again and is sent to another world where he meets Goblin Slayer and his Party. He decide to search for the portal to Hell that sent him there and destroy it once he's back in Hell. The only clue he got is the weakest monsters that bow down to anyone stronger, like demons from Hell... His only clue are Goblins. Two slayers together for a quest!
Doom & Goblin Slayer/ゴブリンスレイヤー, M, English, Adventure & Fantasy, chapters: 15, words: 59k+, favs: 1k+, follows: 1k+, updated: 7/16 published: 10/27/2018, Doomguy
21 Red vs Blue Remnant (Rewritten) » by maus69420 After the war on Chorus, the Reds and Blues are finally going home, but with their friends trying to start anew, they decided that they should go along with them. (Greatly inspired by Council of Intellectual's "We Could've Been)
Red vs. Blue & RWBY, T, English, Adventure & Friendship, chapters: 18, words: 44k+, favs: 61, follows: 76, updated: 7/11 published: 9/16/2020
586 DOOM Effect: V2 » by Zrocker119 Alexander Carter didn't accomplish anything truly worth noting during his life. So when he was offered a chance to make a difference in the overgrowing universe he accepted without much argument on his part. Now armed with the skills and knowledge of one of the deadliest and most feared warrior in existence, The Doom Slayer, Alex will make sure that all will know his name.
Doom & Mass Effect, M, English, Adventure & Sci-Fi, chapters: 7, words: 37k+, favs: 1k+, follows: 2k+, updated: 7/6 published: 3/25/2019, Doomguy, Shepard
281 Law of Iron » by metaldragon868 Louise just wanted something powerful. Something simple would have done, but something deep within her called for power. Her pride demanded to be respected. Unfortunately for her, the Void answered. For saving Lord Felwinter from the brink of death was as much a curse as it was a blessing for poor little Louise. Now, the world will learn the Law of Iron, and it will burn for it.
Familiar of Zero & Destiny, M, English, Adventure & Supernatural, chapters: 10, words: 48k+, favs: 1k+, follows: 1k+, updated: 7/4 published: 9/7/2018, Louise, Siesta, Exo
53 Doom Taker » by SheosMan117 What happens when Doom Slayer is the one to rescue the girls from Hell? Warning, this has spoilers for pretty much all of Eternal. This fic also exists on AO3 as well.
Doom & Helltaker, M, English, Adventure & Romance, chapters: 36, words: 98k+, favs: 332, follows: 330, updated: 7/3 published: 7/20/2020, Doomguy, Modeus, Justice, Lucifer
240 Overlord: The Unholy Crusade » by MegaSharks For years the Doom Slayer has remained dormant in silent suffering. His tomb is found by a group of scholars with a young scribe who unlocks the way to awaken the Hellwalker in this New World. For better or for worse.
Doom & Overlord/オーバーロード, M, English, Fantasy & Adventure, chapters: 13, words: 65k+, favs: 587, follows: 739, updated: 7/3 published: 9/28/2020, Doomguy, Ainz, Albedo, Demiurge
52 Beneath the Hero's Mask » by AmaraMerlinXCVII After being apprehended by the authorities, the wanted vigilante Joker is given the option to turn to the good side. Put on probation and enrolled in U.A. High School, Joker tries to leave his past behind him and become a pro Hero with the help of his new friends.
Persona Series & My Hero Academia/僕のヒーローアカデミア, T, English, Adventure & Romance, chapters: 16, words: 76k+, favs: 352, follows: 435, updated: 7/2 published: 3/15, Akira K./Ren A., Izuku M., Momo Y., Shouta A./Eraserhead
949 Is It Too Much To Ask To Be Left Alone? » by Ashbel Longhart Bell Cranel died to a Minotaur in the Dungeon. Years later, he finds himself in Lordran after escaping the Undead Asylum only to die over and over. And then he burned for many, many years. And after many centuries, what seemed like a dream, Bell finds himself back in the Dungeon. So what does he do now that he's back home? To be frank, he just wants to be left alone.
Dark Souls & Dungeon ni Deai o Motomeru no wa Machigatte Iru Darou ka, T, English, Fantasy, chapters: 13, words: 157k+, favs: 4k+, follows: 5k+, updated: 7/1 published: 4/1/2019, Great Grey Wolf Sif, Bell C., Hestia, Aizu W.
172 The Tangled Dooms » by Lord StarKnight Rapunzel was living her life locked in her tower, as usual, but her boredom ended in a frightening way when a giant in armor appeared in the middle of it. The terror seizes the young girl, especially when hideous creatures seems interested in her so quiet world. But maybe it could change however. For her and some other princesses.
Doom & Tangled, M, English, Adventure, chapters: 22, words: 84k+, favs: 242, follows: 284, updated: 6/23 published: 12/11/2019, Doomguy, Rapunzel, Eugene F./Flynn R., Cassandra