Small Mouse Big House is an adventure developed by Polypaw, released 21 November 2025 on PC (Microsoft Windows).
What Small Mouse Big House is
Small Mouse Big House is an adventure game developed by Polypaw and released in 2025. It is available on PC (Microsoft Windows) only. It runs on Unity.
The premise, in the publisher's words
You play as Millie, a small mouse on a mission to find food for her kids in a house that's far too big—and far too dangerous. As Millie ventures through the enormous rooms, she’ll face towering obstacles and enemies that dwarf her in size. Can she outsmart these dangers and make it back to her family, or will the horrors of the house overwhelm her?
How it plays
It is played from a first person perspective. Its themes are horror. It is a single-player game with no multiplayer component.
What it launched against
Small Mouse Big House launched on 21 November 2025, within three weeks of Metroid Prime 4: Beyond, Routine, Kirby Air Riders and Marvel Cosmic Invasion.
Released around the same time: Metroid Prime 4: Beyond, Routine, Kirby Air Riders, Marvel Cosmic Invasion.
Official trailer
Sourced from the publisher’s YouTube channel.
Screenshots
All media
Quick answers
Small Mouse Big House — frequently asked questions
When did Small Mouse Big House come out?
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