MUGI

Developer: 反動のゲームちゃんねる
Released: Aug 9, 2026
Tags: ActionCasualIndie

View on Steam

Where to buy

Steam

Buy on Steam

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Price & availability

Cheapest it’s ever been

Best price now

$7.99

at Steam→

Lowest ever

$7.99

at Steam · 8/9/2026

Real recorded prices & subscription data via IsThereAnyDeal.

What owning this involves

No cloud saves · The store does not back this game's saves up — they live on the machine you play on.From the store listing

Only what the store discloses. Nothing listed here means the store disclosed nothing — not that there is nothing to disclose.

AI Generated Content Disclosure

Declared by the publisher

Some arranged versions of the background music include sounds generated with AI assistance. All original compositions and other content, including graphics and game design, were created entirely by the developer.

Required on Steam since 2024. Covers what ships, not tools used in development. Check it on Steam.

Features

Single-player
Steam Achievements
Partial Controller Support
Family Sharing

From the game's Steam store page.

Languages

English
Japanese

Steam lists 2 languages.

Age rating & content

DEJUS LThe rating board's own rating, as Steam relays it
IGRS 3The rating board's own rating, as Steam relays it

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About this game

The developer's description, from the game's Steam store page.

MUGI, originally released in May 2026 as an MSX2-exclusive cartridge, is now on Steam!

Meet MUGI, born in a weapons factory.

An experimental “ego” was installed… and he realized:

“I don’t want to stay in a place like this!”

Avoid the pesky robots!

Set the batteries into the battery boxes!

Escape to the next room through the opened door!

Can you solve the mystery every 5 stages!?

Action & Puzzle!

A fusion of action and puzzle gameplay Includes mystery-solving elements Recommended for chiptune fans!

The PC version includes the following additional features:

Gorgeous arranged BGM selectable alongside the original MSX2 soundtrack
Ranking system (with name entry) https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4675230/extras/b35c057b04e055161f1b13eb54c8339a.avif?t=1786318327
Tutorial https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4675230/extras/5e90b2b354195af1e3ad97b3cb06cf46.avif?t=1786318327
Stage editor (created stages can be saved as files and shared with friends) *We plan to save edited data to the server and share it with people all over the world in a future version update. https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4675230/extras/33e5bbc5c3055f674bc8c56c9e67a70a.avif?t=1786318327
The instruction manual is included in the same folder as the executable file.