30The Beast Inside » by cyberkiller125
When Eggman shatters the planet in seven pieces and unleashes a monster that's inside the planet, Sonic must go on a world adventure with his friends to fix the planet and stop the beast. However, Sonic must also deal with a transformation that occurs when the sun goes down, as well as something thats inside him.Sonic the Hedgehog, T, English, Adventure & Supernatural, chapters: 35, words: 197k+, favs: 99, follows: 98, updated: 5/18 published: 6/12/2019, Sonic, Tails, Chip/Light Gaia, Sonic the Werehog
21
Bygone Adventures: Episode 2 Curse of the Skull » by Maraja Sargasso
While exploring a hidden cave, Sonic discovers a long lost artifact, unaware that it is the skull of a werehog. Everything goes wrong from there when he accidently cuts himself on one of its fangs, not knowing that the werehog's bite still has a very potent effect. Meanwhile, trouble is rising as Eggman continues to investigate the reason for Shadow's interference of his last plot.Sonic Boom, K+, English, Supernatural & Adventure, chapters: 10, words: 15k+, favs: 19, follows: 16, updated: 5/13 published: 9/27/2020, Sonic, Tails, Dr. Eggman, Shadow
911Shadow the Hedgehog - First Class » by Taranea
He can outrun a missile. He can shoot a man at 100 paces. But Shadow the Hedgehog will also have to murder somebody if he has to attend another day of High School. In a world where Maria and Gerald survived the ARK massacre, the Ultimate Lifeform now struggles to get used to ordinary life (and his classmate Sonic) - or ordinary life if it weren't for Maria's cousin, Dr. Robotnik...Sonic the Hedgehog, T, English, Friendship & Humor, chapters: 31, words: 174k+, favs: 508, follows: 552, updated: 2/1 published: 10/27/2014, Sonic, Shadow, Maria R., Gerald R.
3Blinded by the Light » by alwaysoverthinking
When a fight with Eggman takes a turn for the worse, Sonic's vision is lost. Shadow and Silver must help the other realize not all hope is lost and support one another and with that Sonic must do a self rediscovery.Sonic the Hedgehog, T, English, Family & Hurt/Comfort, chapters: 2, words: 5k+, favs: 10, follows: 10, updated: 1/6 published: 2/19/2021, Sonic, Shadow, Dr. Robotnik/Dr. Eggman, Silver
22 
Sonic Wild » by Maraja Sargasso
When a normal battle takes a turn for the worst, Sonic and Shadow are suddenly teleported to Earth and meet the Wild Kratts crew. But trouble is stirring in this peaceful world, and it's up to the two hedgehogs to save the planet. But it won't be easy, and the two will have to face more than they thought.Sonic the Hedgehog & Wild Kratts, K+, English, Adventure & Family, chapters: 21, words: 50k+, favs: 30, follows: 30, updated: 1/6 published: 5/25/2020, Sonic, Shadow, Chris K., Martin K.
23 Were Sonamy » by Cutegirlmayra1
Sonic is dealing with being a Werehog while doing his daily business of being a Hero, but Amy Rose can't stand missing him this much! She sets off to find him, but what has become of her Blue Blur? (Were Sonamy - Fun Fact: My first fanfiction) CONTAINS: Cute feels!Sonic the Hedgehog, K, English, Humor & Romance, chapters: 5, words: 17k+, favs: 80, follows: 32, updated: 12/29/2022 published: 7/18/2012, Amy, Chip/Light Gaia, Sonic the Werehog
28 Were-Nights » by Cutegirlmayra1
Unleashed Werehog Sonic finds Amy but doesn't feel want her to know he's her hero, Sonic. Worried it may frighten her, he tries to get her out of danger without exposing his little secret. It proves hard when his partner, Chip, is being too much of a romantic and keeps trying to leak expose Sonic every chance he gets! (Were Sonamy) CONTAINS: Cute feels!Sonic the Hedgehog, K, English, Adventure & Romance, chapters: 4, words: 19k+, favs: 133, follows: 55, updated: 12/29/2022 published: 5/17/2014, Sonic, Amy, Chip/Light Gaia, Sonic the Werehog
75 Zenith » by Cytisus
Taking place shortly after "Shadow the Hedgehog", it appears that not all is at it seems with the Chaos Emeralds. As soon as they're found they disappear, taking their possessor along with them. With the team quickly dwindling, they have little time to uncover the truth and find the others, before the planet's very own essence is lost to time.Sonic the Hedgehog, K+, English, Adventure & Friendship, chapters: 20, words: 84k+, favs: 32, follows: 41, updated: 12/18/2022 published: 11/21/2020, Sonic, Tails, Knuckles, Shadow
27Sonic X: Different Outcomes » by Tashasaurous
AU: What if Sonic had dreamed up all of the events of the first two seasons of Sonic X due to the effects of the explosion of Eggman's machine containing the Chaos Emeralds? Lost and upset when he realizes this after waking up, Sonic has a hard time accepting this and it's going to take a lot including his friends to help him recover. But was it really all just a dream? Or more?Sonic the Hedgehog, K+, English, Hurt/Comfort & Friendship, chapters: 10, words: 90k+, favs: 44, follows: 39, updated: 8/24/2022 published: 9/29/2020, Sonic, Tails, Amy, Christopher T.
468 Catch Them If You Can! » by Taranea
COMPLETE! After a mission to foil Robotnik's plans goes VERY wrong, Sonic & Co find themselves on a strange new planet - only this time the humans of this world want to capture them like animals! But to get back home, our heroes might need their help - which would be easier if they even spoke their language... (semi-Xover with Pokemon, but no Pokémon knowledge necessary :)Sonic the Hedgehog & Pokémon, K+, English, Adventure & Humor, chapters: 28, words: 109k+, favs: 343, follows: 367, updated: 8/11/2022 published: 8/1/2016, Ash K./Satoshi, Sonic, Tails, Knuckles
57Chaos Bond » by EruDuma
Situations in life may be changing but that doesn't mean the heroes are ready to retire. Not with their enemies unaccounted for. But while some contemplate the idea of leaving behind a legacy, there is still one other question: Is it finally time to find out what exactly links Sonic, Shadow and Silver together? All-Star Cast. Sequel to Chaos Born.Sonic the Hedgehog, T, English, Family & Adventure, chapters: 20, words: 74k+, favs: 64, follows: 70, updated: 7/18/2022 published: 8/19/2019, Sonic, Shadow, Silver
159 One-shot collection » by Arctic-Starflowers
Various one-shots. M/M, M/F, F/F, friendship... etc. Angst and humour and romance. A bit of everything really. Currently taking no requests.Sonic the Hedgehog, T, English, Romance & Humor, chapters: 85, words: 78k+, favs: 64, follows: 40, updated: 5/26/2022 published: 6/13/2016
320Foray » by Hikareh
Leaving one's family and destiny isn't an easy thing to do, but Sonic needs to get away to discover if he's the prince his siblings want him to be, or the hero his heart is telling him he is. Three years later, Eggman kidnaps Manic, and Sonic is drawn back into the world he left behind, but now he can do more than rely on his medallion. He can fight. /Bridging Underground and SEGA/Sonic the Hedgehog, T, English, Adventure & Family, chapters: 13, words: 117k+, favs: 483, follows: 462, updated: 5/2/2022 published: 9/17/2012, Sonic, Tails, Sonia, Manic
15Pandora's Box » by ali-aphrodite
Ever since the war has ended, things have been calm. Infinite missing, the earth and its people healing, and of course, the ever so impending destruction of the world as we know it. Again.Sonic the Hedgehog, T, English, Adventure & Fantasy, chapters: 4, words: 15k+, favs: 13, follows: 18, updated: 5/1/2022 published: 7/26/2019, Sonic, Tails, Knuckles, Shadow
15 Damage » by mercurymachine
Hedgehog-series robots were always designed with superior intelligence, but something was definitely different about Metal Sonic, it always had been. That spark of emotion in him seemed to come from somewhere deep within, and it sure as hell wasn't normal for a robot that was supposed to be nothing more than a copy of Sonic.Sonic the Hedgehog, T, English, Hurt/Comfort & Angst, chapters: 24, words: 206k+, favs: 52, follows: 44, updated: 3/18/2022 published: 10/16/2020, Metal Sonic, Silver Sonic, Mecha Sonic
33 Sonic's Space-Time Adventure » by Tashasaurous
AU: *Sequel to Sonic and the Power of the Wisps*: What started as the best birthday Sonic ever hard with his friends soon turns sour when an unusual monster drags all of them into a place where Space and Time stand still. Now he must go on a journey with old and new friends to find answers and save not just Mobius, but all existence as well from the monster and a new evil enemy.Sonic the Hedgehog, T, English, Adventure & Supernatural, chapters: 28, words: 337k+, favs: 27, follows: 25, updated: 3/16/2022 published: 5/9/2020, Sonic, Tails, Silver, Scourge
7 Nightmare or Vision? » by Tashasaurous
What if the events of Sonic Forces and the IDW comics never happened? Sonic saw these events play out in his sleep just after the events of Sonic Lost World. But is it a nightmare, or a dark vision of the future? Fearing for the worst, he seeks out his friends to help him. *WARNING: Contains heavy spoilers*(Update: Added a bonus chapter, including spoilers of new Sonic 2022 game)Sonic the Hedgehog, K+, English, Hurt/Comfort & Friendship, chapters: 2, words: 10k+, favs: 22, follows: 5, updated: 12/18/2021 published: 9/3/2020, Sonic, Tails, Knuckles, Amy
18 All It Takes Is Loss » by Jedi Ani Unduli
Sonic and Tom go camping in Montana. Bad guys are easy to defeat when you can see them. Nature is a completely different entity. Also, check out Solar Socks on Tumblr!Sonic the Hedgehog, K+, English, Hurt/Comfort & Tragedy, chapters: 14, words: 62k+, favs: 36, follows: 28, updated: 12/11/2021 published: 4/25/2020, Sonic
8Secrets Don't Make Friends » by Sweetenlow
Sticks is rescued by Shadow. With little choice but to travel with him, she takes this time to try and get to know the mysterious hedgehog. Why doesn't he want friends? Why live alone? How is he so strong? She's determined to know all about him, and he's not quite determined to answer. But with a little effort, maybe she can get through that tough shell. Shadowxsticks.Sonic the Hedgehog, T, English, Friendship, chapters: 6, words: 27k+, favs: 19, follows: 24, updated: 10/25/2021 published: 9/1/2020, Shadow, Sticks
34Feral Bonds » by Leodragon678
Studying animals with genetic defects was Robotnik's job, but he'd never imagined what bringing them together would do...Sonic the Hedgehog, K+, English, Friendship, chapters: 3, words: 5k+, favs: 55, follows: 54, updated: 10/5/2021 published: 1/9/2021, Sonic, Tails, Dr. Robotnik/Dr. Eggman