Malbug
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Summary
In the aftermath of the Human/Monster war, the Humans (who came out victorious over Monster kind) round up the Monsters and seal them in Mount Ebott. Spamton (a Human) and Tenna (a Monster) make an escape attempt from their village in hopes of establishing a safer, better life together. But they're caught, separated, and Tenna is sealed behind the Barrier with the other Monsters.
Tenna struggles to come to terms with his new life in the Underground... without his love, Spamton.
Spamton, meanwhile, makes a deal with a mysterious benefactor to get Tenna back. But the terms are not entirely ideal...This is a long-form thriller with moments of horror for flavor. The Undertale 10th anniversary stream inspired this beast of an AU fic. Sit back with your drink and/or snack of choice. I hope you enjoy!
Bookmarked by Malbug
25 Aug 2026
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After the War is Over by gaudyAficionado
Fandoms: Undertale (Video Game), Deltarune (Video Game)
05 Oct 2025
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After being sealed underground for centuries, the barrier is finally broken, and monsters can return to the surface. Ant Tenna, a boss monster, hesitantly decides to seek out his old human partner, Spamton G. Spamton. He instead finds their old home ancient and abandoned along with a box of letters addressed to him.
Bookmarked by Malbug
25 Aug 2026
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Summary
Spamton thought it was the end of the world when he saw a beacon of light pierce through the summit of Mount Ebott and soar into the sky, not knowing that he had born witness to the shattering of the ancient barrier that trapped monsterkind beneath the mountain.
Magic had begun to flow back into the world, and creatures he had believed only existed in fairy-tales suddenly began to settle down and live in Elysium city.
At first, he thought he could ignore it, but after his workplace adopts a monster integration program, and he is forced to look after his new coworker, he finds that his life is suddenly full of questions from an obnoxiously curious ant.
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(Undertale Spamtenna Modern Magic AU)- Language:
- English
- Words:
- 140,412
- Chapters:
- 21/?
- Comments:
- 528
- Kudos:
- 1,522
- Bookmarks:
- 178
- Hits:
- 31,685
Bookmarked by Malbug
24 Aug 2026
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you’ve got a hunger by terrorvision, trojanwhore (terrorvision)
Fandoms: Deltarune (Video Game), Undertale (Video Game)
15 Aug 2026
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Spamton Addison was the smallest in his camp, misplaced as it may be he was trusted, and he was the quickest on his feet while still remaining quiet due to his severe lack of heft— needless to say, he was appointed the dedicated runner if information needed to be passed from one camp to another quickly and without question.
So far, Spamton made every trip with no interception from any monsters looking to send a message with the poor post boy.
So far.
Bookmarked by Malbug
24 Aug 2026
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The Beast You've Made Me by I_want_a_coffee
Fandoms: Deltarune (Video Game), Undertale (Video Game)
11 Apr 2026
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Summary
He swallowed hard, trembling but unable to tear his gaze away from the being before him. Fear still rooted him in place, but curiosity—foolish, human curiosity—kept his eyes fixed on the way the moonlight caught the monster’s fur, the faint curl of his antennae, the glint of sharp teeth in the dark.
It should have been pure terror. And yet… it wasn’t.
And that fact almost scared him more than the monster did.
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A Spamtenna Monster/Human Undertale AU inspired by Beauty and the Beast
Series
- Part 1 of TBYMM Series
- Language:
- English
- Words:
- 195,470
- Chapters:
- 18/26
- Comments:
- 1,479
- Kudos:
- 3,441
- Bookmarks:
- 419
- Hits:
- 102,937
Bookmarked by Malbug
02 Jun 2026