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Boo! - The Mystery Story

Game overview

Boo! - The Mystery Story

Boo! is a 2.5D cartoon-style platformer with shoot 'em up action and hardcore combat. Explore a plant-infested world, collect blaster modules, battle unique bosses, and uncover the city's secrets in a world inspired by vintage animation and hidden dangers.

Action Adventure Casual Indie Massively Multiplayer
Last tracked players
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All-time peak
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24-hour change
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About this game Read the full description

       

Boo! is a 2.5D side-scrolling shoot 'em up platformer set in a vibrant cartoon world… that’s slowly being devoured by a green apocalypse.

This is a dark and mysterious tale about a city under siege by monstrous plants. No one knows where they came from, or why they’re attacking. But when Matt’s best friend Emma is taken during the chaos, his search for her will uncover something far worse than overgrown vines.

You are Matt, a tired plumber caught in the middle of the green apocalypse. Armed with a stolen blaster and his trusty plumber’s plunger, Matt must battle through hordes of mutated plant creatures, survive deadly boss encounters, and uncover the truth behind the outbreak. Along the way, a shadowy figure offers strange upgrades — blaster modules that the player assembles and customizes to match their combat style.

Every encounter brings you closer to a horrifying realization: the plants didn’t rise by accident. Someone is behind it all… and he’s watching you.

Shoot 'em up with deck-building

Your blaster is modular — each component alters its behaviour, from damage type to shot pattern. Combine modules to match your style and adapt to every enemy.



Explore a living, infected world

An open, interwoven world invites deep exploration. Unlock new abilities and return to previously unreachable areas.

Unique Bosses & Enemies

Every boss and enemy is a challenge, with complex mechanics and memorable designs. Expect frustration — and satisfaction — when you finally win.



Hand-drawn cartoon style

Inspired by 1930s–1950s animation: fluid movement, expressive characters, and nostalgic charm hiding real danger.

Features

  • 2.5D platforming with intense shoot 'em up combat

  • Dozens of unique enemies and tough bosses

  • Vintage cartoon visuals with a dark twist

  • No mercy. No shortcuts. Just roots, bullets, and skill

Add to your wishlist if you love cartoon art and hardcore challenge!

Player activity

Concurrent players over the last 48 hours.

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System requirements Windows · macOS

Windows

Minimum

Minimum:
  • Requires a 64-bit processor and operating system
  • OS *: Win 7
  • Processor: Quad-core Intel / AMD processor, 2 GHz
  • Memory: 4 GB RAM
  • Graphics: 1 GB
  • DirectX: Version 10
  • Storage: 400 MB available space

Recommended

Recommended:
  • Requires a 64-bit processor and operating system

macOS

Minimum

Minimum:
  • OS: Big Sur 11 or newer
  • Processor: Intel Core i3
  • Memory: 4 GB RAM
  • Graphics: Metal capable Intel and AMD GPUs
  • Storage: 8 GB available space

Recommended

Recommended:
  • OS: Big Sur 11 or newer
  • Processor: Intel Core i5, Apple M1
  • Memory: 8 GB RAM
  • Graphics: Metal capable Intel and AMD GPUs, Apple M1
  • Storage: 8 GB available space
Game details Languages, features & support
Publisher
Solvex Games
Brazilian rating
l
Controller support
full
Features
Single-player, Full controller support, Custom Volume Controls, Playable without Timed Input, Steam Cloud, Family Sharing
Languages
English, Russian, Spanish - Spain, French, Italian, German
Compatibility & accessibility Steam Deck, controllers & access features

Can I Play This?

Steam declarations and Valve's Steam Deck compatibility result. Missing data is shown as unknown, never unsupported.

Sources fresh
Native Steam builds
Windows: unknown
macOS: unknown
Linux: unknown
Steam Deck
unknown
Valve compatibility test
Input
Controller support: unknown

Developer-declared accessibility on Steam

Features not declared by the developer are not labeled unsupported.

custom volume controls playable without timed input
Structured language support (6)
LanguageInterfaceFull audioSubtitles
EnglishYesNoYes
RussianYesNoYes
Spanish - SpainYesNoYes
FrenchYesNoYes
ItalianYesNoYes
GermanYesNoYes
Steam store page fresh · checked 2026-09-28 PCGamingWiki technical notes External link only; SteamIQHQ does not ingest PCGamingWiki content.
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Frequently Asked Questions

Is Boo! - The Mystery Story free to play?
Yes, Boo! - The Mystery Story is free to play on Steam.
What genre is Boo! - The Mystery Story?
Boo! - The Mystery Story is a Action, Adventure, Casual, Indie, Massively Multiplayer game.
Who developed Boo! - The Mystery Story?
Boo! - The Mystery Story was developed by Denis Davidov and published by Solvex Games.
What platforms does Boo! - The Mystery Story support?
Available on Steam for Windows, macOS.