⚜ SteamCozy

Home / Games / Machorium -Muscle Aquarium Simulator-

Machorium -Muscle Aquarium Simulator-

Machorium -Muscle Aquarium Simulator-

Machorium - Muscle Aquarium Simulator - is a relaxing idle and sandbox game where you can unwind and have fun. Use points generated by cute little decorative muscle men to unlock various items and create your ideal muscle aquarium, Machorium.

Released May 28, 2024 Developer NEOLAVI Publisher indiegamesjapan, Qmax Platforms Windows SimulationIdlerCasualClickerSandbox
View on Steam ↗ $7.99 (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.

90.4%positive73 reviews
Recommended · 0 found this helpful

“This is why I love video games: they appeal to the male fantasy.”

— a player, Steam review · 55 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.

20achievements
40.0%median completion
14.8%rarest: Object Mania
99.3% of players 99.1% of players 98.8% of players 90.6% of players 83.5% of players 79.3% of players 72.9% of players 62.8% of players 51.2% of players 48.4% of players 40.0% of players 21.4% of players 18.9% of players 17.8% of players 17.2% of players 16.2% of players 15.9% of players 15.1% of players 14.9% of players 14.8% of players 99.3% 0% most earned rarest
Almost everyone has
99.3%The first macho — Raise one Macho.
99.1%Protein debut — Give protein for the first time.
98.8%First Build-Up — Strengthen one Macho.
Rarest badges of honor
14.8%Object Mania — Unlock all objects.
14.9%Soil Mania — Unlock all Soil.
15.1%Background Mania — Unlock all backgrounds.

Latest official news

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

Mar 25, 2025
Game Update -Blooming Spring!- Ver.1.0.7 - March 25

Thank you for playing Macholium. We’re excited to bring you a new update to enhance your gaming experience! Here are the patch details: ◆ Seasonal Items Added New spring-themed objects have been added

Dec 19, 2024
Game Update -Winter Holiday!- Ver.1.0.6 - December 19

Thank you for playing Macholium. We are excited to announce a new update to enhance your gaming experience. Below are the details of the update patch: ◆ Seasonal Items Added Winter-themed objects have

Oct 18, 2024
Game Update -Happy Halloween!- Ver.1.0.5 - October 18

Thank you for playing Macholium. We are pleased to announce an update to enhance your gaming experience. Below are the details of the update patch: ◆ Seasonal Items Added New Halloween-themed items ha

Jul 23, 2024
Game Update -Summer Vacation!- Ver.1.0.4 - July 23

Thank you for playing Macholium. We have released an update to enhance your gaming experience. Here are the details of the update patch: ◆ Seasonal Items Added A new Seasonal category has been added t

Jul 01, 2024
Game Update Ver1.0.2 - July 1

Thank you for playing Machorium. We have made some fixes and improvements to make your gaming experience more enjoyable. Here are the details of the update patch: ◆ Bugs ・Fixed an issue where points g

Games like Machorium -Muscle Aquarium Simulator-

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

Chillquarium Chillquarium 94.2% · 5,570 reviews shares Fishing, Underwater, Cozy, Creature Collector Cornerpond Cornerpond 97.1% · 1,801 reviews shares Fishing, Creature Collector, Idler, Clicker Megaquarium Megaquarium 95.6% · 2,593 reviews shares Fishing, Underwater, Creature Collector, Resource Management Plantera 2: Golden Acorn Plantera 2: Golden Acorn 95.1% · 634 reviews shares Idler, Collectathon, Clicker, Nature Aquarium Designer Aquarium Designer 86.5% · 772 reviews shares Underwater, Idler, Clicker, Resource Management Ropuka's Idle Island Ropuka's Idle Island 95.7% · 2,401 reviews shares Cozy, Idler, Clicker, Nature Tiny Pasture Tiny Pasture 94.0% · 1,266 reviews shares Creature Collector, Idler, Clicker, Nature Aquarist Aquarist 84.2% · 609 reviews shares Fishing, Creature Collector, Nature, Sandbox

Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

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

GenresCasual, Indie, Simulation
Player tagsSimulation · Idler · Casual · Clicker · Sandbox · Collectathon · 3D · Underwater · Relaxing · Atmospheric · Creature Collector · Cute (SteamSpy community voting)
FeaturesSingle-player · Steam Cloud · Family Sharing
LanguagesEnglish, French, German, Spanish - Spain, Indonesian, Portuguese - Brazil, Polish, Russian, Simplified Chinese, Traditional Chinese, Japanese, Korean
Achievements20
Minimum system requirements (PC)

Minimum: OS: Windows 10 64bit Processor: 2.50GHz Memory: 4 GB RAM Graphics: NVIDIA GTX 1060 or Higher