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Gurumin: A Monstrous Adventure

Gurumin: A Monstrous Adventure is a cute and clever action RPG featuring real-time combat, 3D graphics, 90+ items, mini-games, multiple endings, a rocking soundtrack, 35+ hours of playtime, tons of fully voiced characters by an all-star cast of voice actors, and more!

Steam Page
Publisher
Release
March 30, 2015
11 years and 128 days ago
Steam Reviews
Very Positive1,104 reviews90.9%

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Latest Contributor: IGF TeamEdit notes
Updated: Jul 13, 2026Developer scaleThe operating scale of the game's developer.
Updated: Jul 15, 2026Publisher scaleThe operating scale of the game's publisher.
Updated: Jul 15, 2026Publisher statusHow the game's publishing relationship is classified.
Search Google: How is Gurumin: A Monstrous Adventure and Mastiff funded?FundingThe known source of funding behind the game.
Search Google: Who controls the creative direction and IP for Gurumin: A Monstrous Adventure and Nihon Falcom and Mastiff?Creative controlWho appears to retain creative control of the game.
Updated: Jul 13, 2026Release statusWhether and how the game has been released.

Media

15 items

About the Game

Gurumin: A Monstrous Adventure is a fantastic Action-RPG from leading Japanese developer Falcom (Developers of “Ys” and “Zwei” among other classics) featuring real-time combat, stunning 3D graphics, tons of fully voiced characters and mini-games , 90+ items, multiple endings, a rocking soundtrack, 35+ hours of playtime, and more.

Originally released outside Japan on Sony’s PSP®, Mastiff is proud to bring a fully localized and updated version of Gurumin: A Monstrous Adventure to Windows and to offer it through Steam with a full set of Steam specific features including Achievements, Trading Cards, Big Picture and Cloud Save.

The Story



Gurumin stars Parin, a strong-willed girl sent to live with her grandfather in a small mining town. Parin soon discovers an invisible monster village hidden behind her home. She is quickly drawn into a fight between the village’s friendly monster residents and the Phantoms, evil monsters that want to destroy them. Learning of a weapon hidden underneath the village that she alone is fit to wield, Parin embarks on a quest to stop the Phantoms and make the world right.

Play From Your Couch



Features

  • 30 stages of non-linear game play
  • 23 non-player characters, 48 unique enemies, and more than 90 items to collect
  • Brilliantly diabolical dungeons, traps, puzzles and boss encounters
  • Mini-games galore!
  • 5 difficulty levels
  • Hidden characters, modes, and other secrets
  • Supports Windows XP, 7 and 8 at high resolution (up to 1920x1080) and with modern Anti-aliasing (up to 8X MSAA)
  • Full Steam support including: Achievements, Steam Cloud, Big Picture mode, and...
  • Beautiful Steam Trading Cards

An All Star Cast

  • Amber Hood as Parin
  • Tara Strong – Cream/Mosby
  • Justin Shenkarow as Puku/Prince
  • Dee (Bradley) Baker as Rocko/Digby
  • Robin Atkin Downes – Pierre/Doug
  • Michael Gough – Hyperbolic/Giga
  • Steve Blum – Motoro/Bob
  • Quinton Flynn – Roger/Poco