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Once Upon a Shell

Once Upon a Shell is a roguelike racing game of ridiculous speed and wild upgrades. As a tortoise, use your shell to your advantage and slide downhill to generate speed. Build movement combos between races and prove that even a tortoise can lift The Hare Cup.

Steam Page
Developer
Razzledazzle Studio
Publisher
DADIU
Release
December 26, 2025
218 days ago
Steam Reviews
Mostly Positive93 reviews78.5%

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Latest Contributor: IGF TeamEdit notes
Updated: Jul 14, 2026Developer scaleThe operating scale of the game's developer.
Updated: Jul 14, 2026Publisher scaleThe operating scale of the game's publisher.
A separate publisher is listed without a proven bounded regional or service-only role.
Search Google: Is Once Upon a Shell self-published or published by DADIU?Publisher statusHow the game's publishing relationship is classified.
Search Google: How is Once Upon a Shell and DADIU funded?FundingThe known source of funding behind the game.
Search Google: Who controls the creative direction and IP for Once Upon a Shell and Razzledazzle Studio?Creative controlWho appears to retain creative control of the game.
Updated: Jul 14, 2026Release statusWhether and how the game has been released.
The title released with a separate publisher relationship.

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About the Game

Once Upon a Shell is a roguelike racing game of ridiculous speed and wild upgrades. As a tortoise, use your shell to your advantage and slide downhill to generate speed. Build movement combos between races and prove that even a tortoise can lift The Hare Cup.

Features:

Race at Ridiculous Speeds
Outrun a pack of overconfident hares in chaotic, fast-paced races where momentum is everything.

Master the Shell Slide
Tuck into your shell to drift around the grasslands with ecstatic speed.

Evolve Your Movement
Unlock movement upgrades that influence how you gain speed and how fast you become.

Claim the Hare Cup
Conquer all four divisions in a single run to prove, once and for all, that the tortoise can beat the hares.

A Living Fable
Explore a charming watercolor storybook world that continues the classic tale of The Tortoise and the Hare.

Credits:

  • Game Director: Vladimír Hořký

  • Producer: Viktor Máni Mønster

  • Game Designer: Anita Tiwari

  • Level Designer: Mikkel Gam-Pedersen

  • Composer: Niels De Fine Olivarius

  • Audio Programmer: Asger Fihl Hedegaard Nielsen

  • Art Director: Emili Mikkelsen

  • Visual Artist: Lucia Šupová

  • Technical Artist: Jacob Kjerulf-Thomasen

  • Lead Programmer: Philip Hviid-Wodschow

  • Programmer: Claudiu Mihai Jechel

  • Programmer: Sebastian Giovanni Murgia Kristensen

  • Programmer: Viktor Krarup Andersen

This game was created as part of the DADIU 2025 program in Copenhagen.

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