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MOMIBOSU

MOMIBOSU

A boy and a girl with a mysterious weapon drone in their hands embark on an adventurous journey from their small underground village to the vast world of new lands. Enjoy a precision 2D platformer that will challenge you no matter how many times you get hit!

Released Jan 15, 2025 Developer PenGames Platforms Windows Precision PlatformerDifficultPixel Graphics2D PlatformerAction-Adventure
View on Steam ↗ $12.99 (US · as of 2026-05-19)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-26.

92.1%positive63 reviews
Recommended · 13 found this helpful

“What a fantastic game! Total under the radar brilliance. The gameplay is soooo buttery smooth, sprite work is lovely, music is stellar and the trippy anime adventure story involving a cannibal mole is captivating. 2025 off to a rock solid start for the Metroidvania genre.”

— a player, Steam review · 3 hrs played
Recommended · 11 found this helpful

“Quality metroidvania that focuses on difficult platforming with unique mechanics in each biome to keep the gameplay fresh. You have an 8 directional dash similar to Celeste, but can also attack/pogo in every direction which creates some interesting movement possibilities. The…”

— a player, Steam review · 13 hrs played
Recommended · 4 found this helpful

“Man I want to love this game bc the platforming is S tier. The music is so good. The art is amazing. The thing that gets me is the combat. It's so janky. I parry a boss and it still hits me. They glow white to tell you to do a charge attack to do big damage and half the time it…”

— a player, Steam review · 8 hrs played
Read more reviews ↗

Achievement stats

Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-09-26.

16achievements
40.2%median completion
31.0%rarest: End of journey
95.5% of players 86.1% of players 69.5% of players 60.9% of players 57.5% of players 51.8% of players 47.8% of players 44.5% of players 40.2% of players 40.1% of players 39.8% of players 39.6% of players 35.4% of players 35.4% of players 35.1% of players 31.0% of players 95.5% 0% most earned rarest
Almost everyone has
95.5%Stand by me — Hidden achievement
86.1%The key — Hidden achievement
69.5%No more earthquake — Hidden achievement
Rarest badges of honor
31.0%End of journey — Hidden achievement
35.1%7 Keys — Hidden achievement
35.4%Friends — Hidden achievement

Latest official news

Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.

Jun 02, 2026
"ULTRA0" is Out Now! Launch Sale is Live!

Thank you so much for your continued support! Today, Tuesday, June 2, 2026, PenGames' brand-new title "ULTRA0" has officially been released! We are currently running a limited-time launch sale where y

May 26, 2026
[New Release] ULTRA0 Launch Date Confirmed for June 2nd, 2026!

Today, we have some exciting news to share with all of our wonderful players regarding PenGames' next project. The release date for our upcoming Visual Novel × Casual Shooter game, ULTRA0 , has been o

Mar 02, 2025
Update to Ver1.1.1

Minor bug fixes implemented. Other adjustments made. 軽微なバグ修正実施。その他微調整を実施。

Feb 07, 2025
Update to Ver 1.1.0

- Fixed a bug introduced when adding warps in Ver. 1.0.4. - Now, you can also jump out of the round object using the jump button. - Added an "Agile Mode" that allows for multiple dashes. This is inten

Jan 31, 2025
Update to Ver 1.0.10

Since many players didn't realize that they can view item descriptions by pressing the jump button on the map screen, I added an explanation. マップ画面でジャンプボタンを押すとアイテムの説明を見れることにみんなが気づかないので説明追加。

Games like MOMIBOSU

From our knowledge graph — ranked by shared traits, not a black box. Each card says why it's here.

Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-09-26.

GenresAction
Player tagsPrecision Platformer · Difficult · Pixel Graphics · 2D Platformer · Action-Adventure · Singleplayer · Platformer · 2D · Action · Exploration · Metroidvania · Adventure (SteamSpy community voting)
FeaturesSingle-player · Steam Achievements · DualSense Controller Support · Partial Controller Support · Steam Cloud · Family Sharing
LanguagesEnglish, Japanese
Achievements16
Official sitehttps://www.momibosu.com/
Minimum system requirements (PC)

Minimum: Requires a 64-bit processor and operating system OS: windows10,11(64bit) Processor: Intel Core i5 Memory: 8 GB RAM Storage: 2 GB available space