Poster16
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Summary
Five years have passed since the Doom Empire fell. Five years of planning that's about to come to fruition.
When a messenger from the rebellion in New Yolk (once the site of the Doom Empire's capital city) arrives with a rumor for Sonic, the hedgehog leaps at the chance to get revenge at those that harmed the people he loved. But it's not as easy as it appears, with a tangled web of words and actions. Everyone has their secrets and their motives. The shadows are full of secrets, promises, and deals are made. The line between truth and lies, friends and foes, and dark and light has fogged and blurred beyond recognition.
But one thing is clear in Sonic's mind: he will do what he must, no matter the cost.
Series
- Part 3 of Time's Promise
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Summary
A bunch of fluffy Sonadow prompts for February. All the prompts are in the same AU unless otherwise noted. List is posted by @SonadowHQ on X!
https://x.com/SonadowHQ/status/2017896454128533948
Series
- Part 2 of Month of Sonadow
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Sonic AU 2025 by Poster16
Fandoms: Sonic the Hedgehog - All Media Types, Sonic the Hedgehog (Video Games), Sonic X (Cartoon 2003), Sonic the Hedgehog (Live Action Universe), Sonic the Hedgehog (IDW Comics), Sonic the Hedgehog (Archie Comics)
02 Feb 2026
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Summary
A collection of oneshots taking place in seven different AUs. Tags will reflect each one. List of prompts is here: https://www.tumblr.com/sonic-au-august/790056826947420160/say-hello-to-the-2025-sonic-au-august-prompt-list?source=share
AUs are (in no particular order in posting):
1) Time's Promise
2) Elysium
3) Modern Racing (Starts with Crossworlds)
4) Tír na nÓg with hints of Hades and Persephone
5) Creation (What if Sonic was born on the ARK?)
6) Bakers (Arthurlot)
7) Movie AU (Shadow gets taken in by the Wachowskis) -
Fluffcember 2024 by Poster16
Fandoms: Sonic the Hedgehog - All Media Types, Sonic the Hedgehog (IDW Comics), Sonic the Hedgehog (Archie Comic), Sonic the Hedgehog (Video Games), Sonic Boom (Cartoon), Sonic the Hedgehog (Live Action Universe)
23 Jan 2026
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Summary
Just a bunch of fluffy Sonic-themed oneshots for the month of December. List comes from @fluff-cember on Tumblr!
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The Silent Jester by Poster16
Fandoms: Sonic the Hedgehog - All Media Types, Sonic the Hedgehog (IDW Comics), Schneewittchen | Snow White (Fairy Tale), Sonic the Hedgehog (Live Action Universe), Den lille Havfrue | The Little Mermaid - Hans Christian Andersen, Beauty and the Beast - All Media Types
13 Jan 2026
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Summary
A king, mad with power. A runaway prince in disguise. And a king who will do anything to find his lost love.
King Ivo seeks one thing and one thing alone: power. So when his stepson is revealed to be superior than he, King Ivo decides to finish the job he started.
Prince-turned-servant Sonic's only crime was falling for a king on the palace stairs and for existing. On the run from his stepfather, he agrees to a Faustian bargain to escape. Sheltered in his lover's kingdom, Sonic must win back his lover's heart or pay the price.
King Shadow will stop at nothing to find the prince he loves. While seeking his lost love, he rescues a voiceless stranger with a flair for dramatics. Although disinterested at first, it becomes clear to Shadow that his new jester is more than what he seems; and Shadow finds himself torn between two conflicting loves.
The choices they make will define them. And the silence between will do the rest.
Recent series
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- Words:
- 361,836
- Works:
- 3
- Bookmarks:
- 40
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Month of Sonadow by Poster16
Fandom Sonic the Hedgehog (Video Games), Sonic the Hedgehog - All Media Types
17 Feb 2026
- Words:
- 34,129
- Works:
- 2
- Bookmarks:
- 1
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Sonadowtobers by Poster16
Fandom Sonic Boom (Cartoon), Sonic the Hedgehog (2020), Sonic the Hedgehog (Archie Comic), Sonic the Hedgehog (IDW Comics), Sonic the Hedgehog (Live Action Universe), Sonic the Hedgehog (Video Games), Sonic the Hedgehog - All Media Types, Sonic X (Cartoon 2003)
12 Nov 2025
- Words:
- 127,673
- Works:
- 4
- Bookmarks:
- 9
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Mariners by Poster16
Fandom Sonic Prime (Cartoon 2022), Sonic the Hedgehog (Archie Comic), Sonic the Hedgehog (Video Games), Sonic the Hedgehog - All Media Types
30 Mar 2025
- Words:
- 64,629
- Works:
- 2
- Bookmarks:
- 9
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The Story of Us by Poster16
Fandom Sonic the Hedgehog (Archie Comic), Sonic the Hedgehog (Video Games), Sonic the Hedgehog - All Media Types
28 Feb 2024
Summary
It was too much like the rom-coms where the bad boy changed for the good girl. And Shadow knew it couldn’t end well.
- Words:
- 10,567
- Works:
- 3
- Bookmarks:
- 12
Recent bookmarks
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Open Your Petals, my Sweet Lilac by PoisonOnTheLips
Fandoms: Sonic the Hedgehog - All Media Types
18 Feb 2026
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Summary
The knight's muzzle grew just a little red, but he did as told. He always did. His legs clasped themselves together as he sat down.
Arthur took his crown off and set it on his nightstand. "You are not to speak, and you are not to touch me. You may leave whenever you want, but I doubt you will." He turned his head to Lancelot, who he noticed was getting redder by the second. "Is this clear?"aka,, arthur touches himself in lancelot's lap to get him to admit he likes him
Bookmarked by Poster16
19 Feb 2026
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Summary
It’s true that Sonic can get a bit spacey at times, but when he returns home after a week of dealing with Eggman and hasn’t eaten since, Shadow knows what he has to do but doesn’t know how to feel about it.
Bookmarked by Poster16
18 Feb 2026
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Summary
In a moment of grief, notorious pirate Captain Shadow makes a desperate wish while mourning his sister Maria, never expecting that the star he cries out to would fall from the sky and take the form of a infuriatingly charming blue hedgehog. With a bounty on his head and word spreading fast there is a living star who can grant wishes, Shadow is forced to sail dangerous waters while guarding the most valuable treasure imaginable, his heart.
⋆｡˚ ☁︎ ˚｡⋆｡˚☽˚｡⋆
⊹ ࣪ ﹏𓊝﹏𓂁﹏⊹ ࣪ ˖
Please mind the tags. Will update them as this goes.Bookmarked by Poster16
09 Feb 2026
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You Hold My Life In Your Hands (But Never Take It) by theluckygroundhog
Fandoms: Sonic the Hedgehog - All Media Types, Sonic the Hedgehog (Video Games)
08 Feb 2026
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Summary
For months, Shadow and Sonic have been finding eachother late into the night and having brutal spars. Nothing is more exhilarating to Sonic. They throw their lives at each other and trust the other enough not to take it. But as Sonic's trust grows, so does his care. He wants to know what drives Shadow to their late-night fights. When he finds out, he comforts Shadow.
OR
Sonic and Shadow regularly beat each other up in the middle of the night until one night Sonic refuses to.
Content Warnings: seeking injury (through fighting), non-graphic violence, mentioned PTSD nightmare- Shadow briefly describes seeing Maria's corpse in his nightmare
Series
- Part 1 of Who We Are Under These Stars
- Part 1 of Sleepless Hedgehogs
Bookmarked by Poster16
08 Feb 2026
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Summary
"I was thinkin'.. because it's Valentine's day, we just...."
"Go on a date? Yes, that's fine," Shadow said, still searching for something.
Sonic made a surprised noise as Shadow guessed what he meant.
Was I really the right one for him?
His mind asked him almost one million times today.
Series
- Part 2 of holiday fics ヾ(≧▽≦*)o
Bookmarked by Poster16
08 Feb 2026