4 Chaos Effect » by JustMobius The Mass Effect universe is already a rough place to be. Now there are a couple of hedgehogs who are lost, and cut off from their abilities, right in the middle of it all. They fall into the hands of an unsuspecting Commander. Let the chaos begin!
Sonic the Hedgehog & Mass Effect, T, English, Sci-Fi & Adventure, chapters: 3, words: 7k+, favs: 6, follows: 11, updated: 8/5 published: 6/28, [Shepard, Garrus V.] Sonic, Shadow
33Dare the Truth » by TheAnonymoux When a terrible storm traps the members of the Resistance inside the Mobian Castle, boredom is unavoidable. To pass the time and maybe have some fun, Sonia pulls out an old board game their mother left behind: Truth or Dare. The game starts out innocently enough, until Sonic pulls a dare card and refuses to do what it says. Unfortunately, they don't have a choice. AU. Sonadow/Other
Sonic the Hedgehog, M, English, Horror & Suspense, chapters: 7, words: 31k+, favs: 62, follows: 69, updated: 7/31 published: 9/18/2019, [Sonic, Shadow] Knuckles, Sonia
10Green Hill University » by Capt. Ressentiment When Sonic signed up for some old fashioned Home Economics course, he expected to have it easy. When Shadow signed up for the same class, he expected to have some peace of mind. Looks like neither of them got what they were looking for. How are they going to pass when they can barely survive one class together? (Sonadow/College AU/started as a joke no we can't stop/Mirrored on Ao3)
Sonic the Hedgehog, T, English, Romance & Drama, chapters: 24, words: 55k+, favs: 20, follows: 24, updated: 7/25 published: 12/29/2018, Sonic, Shadow
95 Mountaintop » by WhereBlueMeetsRed A champion skier gets to know his teammate, a talented rookie. AU Sonadow (slow-ish burn, and beware OOC).
Sonic the Hedgehog, K+, English, Romance & Friendship, chapters: 13, words: 56k+, favs: 28, follows: 29, updated: 5/1 published: 11/1/2018, [Shadow, Sonic] [Rouge, Knuckles]
26My Faker, My King, My Rival, My Master » by TheAnonymoux When Sonic suddenly goes missing, Shadow is tasked with the mission of finding him. It doesn't seem to be too hard, until he finds himself in the world of Camelot, where the faker is king, the people look like their friends, a war is raging, and the Knight of the Round Table known as Lancelot, wants his head on a platter. Sonadow vs. Soncelot (Sonic x Lancelot). Black Knight AU.
Sonic the Hedgehog, M, English, Romance & Adventure, chapters: 7, words: 25k+, favs: 58, follows: 63, updated: 1/31 published: 9/15/2019, [Sonic, Shadow, Sir Lancelot] Rouge
63The King of Hearts » by Whispering-until-Daylight Black Knight AU / After defeating the Black Knight, Sonic was ready to move on to his next adventure ... Well, that was until all these new secrets began popping up about who King Arthur really is. And now Lancelot is acting weird around the cobalt hero. It seems like this story is just beginning. (SonicXLancelot, maybe Sonadow in later chapters)
Sonic the Hedgehog, T, English, Romance & Drama, chapters: 10, words: 59k+, favs: 63, follows: 63, updated: 9/20/2019 published: 5/8/2018, Sonic, Shadow, Sir Lancelot
38 Wake » by LyraintheSky 1wake /wāk/ vb : emerge or cause to emerge from a state of sleep 2wake n : the track left by a ship in the water; also : a track left behind. Or, what happens after Sonic '06 if it didn't really happen? Particularly to a certain villain who should no longer exist...
Sonic the Hedgehog, K+, English, Friendship & Adventure, chapters: 32, words: 96k+, favs: 31, follows: 33, updated: 7/28/2019 published: 9/24/2016, Sonic, Shadow, Silver, Mephiles
7 stay by king.needlemouse Five times Shadow lied - and one time he didn't.
Sonic the Hedgehog, T, English, Friendship & Hurt/Comfort, words: 6k+, favs: 38, follows: 9, 5/2/2019, [Shadow, Sonic] Rouge, E-123 Omega
4 Competition by absolvent Sonadow. From a prompt from sonadow week. Sonic and Shadow race. (If people like this and want to see more I'm open to more prompts if people want to comment.)
Sonic the Hedgehog, K+, English, Romance, words: 2k+, favs: 19, follows: 3, 1/17/2019, Sonic, Shadow
3k+ The Last Spartan » by DinoJake An AU fic in which the Halo and ME universes share the same galaxy. After a well deserved rest in Cryo-Sleep, Master Chief finally awakens...to a whole new galaxy.
Halo & Mass Effect, T, English, Sci-Fi & Adventure, chapters: 55, words: 489k+, favs: 3k+, follows: 3k+, updated: 12/31/2018 published: 5/2/2010, Master Chief/John-117
1 I Need Your Help by gaymariarobotnik No one can bottle up their feelings for too long, not even Sonic
Sonic the Hedgehog, T, English, Hurt/Comfort & Friendship, words: 1k+, favs: 10, follows: 5, 11/15/2018, Sonic, Tails, Amy
160 The Mantle Shelters All » by Arielle1406 An H5 sequel. The Galaxy is thrown into chaos after Cortana and the Created seize control of the Forerunner Empire and attempt to force an era of imperial peace. Why has Cortana done this? John, BB, Lasky and Dr. Halsey each attempt to discover the truth and each of them respond differently to the crisis at hand. What will happen when their ideas of how to save the galaxy conflict?
Halo, T, English, Sci-Fi & Drama, chapters: 33, words: 110k+, favs: 134, follows: 166, updated: 9/13/2018 published: 11/27/2015, Master Chief/John-117, C. Halsey, Black-Box/BB, T. Lasky
7 Violin by benignmilitancy Maria used to play that violin; now so does he. One-shot.
Sonic the Hedgehog, K+, English, Drama & Friendship, words: 6k+, favs: 25, follows: 5, 9/3/2018, Shadow, Rouge, Vanilla, OC
4 War Wounds by Tirainy In Tails' case, they manifested as nightmares.
Sonic the Hedgehog, T, English, Family, words: 2k+, favs: 35, follows: 12, 8/22/2018, Sonic, Tails, Shadow
21Explorers of Lost Memories » by OblivionTheScythe The Time Gears are meant to stabilize the flow of time, to disturb them is to send the world in merclessess darkness. Slowly they begin to disappear, stolen by a nameless and dangerous lavender thief. If the gang and their amnesiatic friend don't find the gears in time, their world could come to an end.
Sonic the Hedgehog, T, English, Adventure & Family, chapters: 7, words: 33k+, favs: 18, follows: 21, updated: 8/14/2018 published: 6/3/2018, Sonic, Tails, Shadow, Silver
7 Glance Through Time by Tirainy Getting whisked away by a mysterious purple cloud did not faze Shadow. Encountering Sonic's younger self, well, that was another story.
Sonic the Hedgehog, T, English, Friendship, words: 2k+, favs: 34, follows: 10, 8/14/2018, Sonic, Shadow
20 Project Shadow - Revisited » by ArizonaSivy Project Shadow has never fully been finalized. The black hedgehog is visited by a mysterious man who tries to convince him to bring his creator's work to an end. Is it a trick of but another corrupt human, or a true chance for the Ultimate Lifeform to complete his destiny? Discover more about Shadow's nature as he teams up with unlikely allies.
Sonic the Hedgehog, T, English, Adventure & Mystery, chapters: 18, words: 73k+, favs: 25, follows: 19, updated: 6/29/2018 published: 4/14/2018, Sonic, Tails, Shadow, Dr. Robotnik/Dr. Eggman
402 Sangheili and Dragons » by Legion 716 After an attack by surviving Brute warships, the Shadow of Intent crash lands on a world similar to that of Humanity's Earth. After impact, the Arbiter meets a completely new creature to him, one of great power: Cynder. With a new, menacing Jiralhanae leader in charge of an imminent invasion, Thel and Cynder must combine their people's abilities to beat back their greatest foe yet.
Spyro the Dragon & Halo, T, English, Sci-Fi & Adventure, chapters: 80, words: 377k+, favs: 131, follows: 113, updated: 6/15/2018 published: 7/19/2011, Cynder, Arbiter
13 Immortal by TeddyBearTy Shadow cannot die due to how he was created. But just because it can't happen physically, doesn't mean it can't happen emotionally. The Ultimate Lifeform is breaking down and he doesn't know how mush more of it he can take. WARNING: ANGST AND PLATONIC SHADOUGE!
Sonic the Hedgehog, T, English, Angst & Friendship, words: 3k+, favs: 21, follows: 9, 3/8/2018, Shadow, Rouge
Ephemeral by Rikkacchi "Thank you for taking care of my dear friend."
Sonic the Hedgehog, T, English, Tragedy, words: 2k+, favs: 5, follows: 1, 2/26/2018, Rouge, Maria R.