Screenshots
Watch trailer on Steam ↗Machorium -Muscle Aquarium Simulator-
NEOLAVI · Published by indiegamesjapan, Qmax
Very Positive — 90% positive (73 reviews) · 20 achievements
Last updated 28 Sept 2026
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.
DJCTQ l
£6.69
Lowest price we've ever recorded
View on SteamPrices can lag the live Steam store — always confirm before buying.
£6.69
Price history
4 Sept 2026Lowest: £6.69 · Highest: £6.699 Oct 2026
Indie, Simulation, Casual · 2024 · More £5 - £15 games
Dive into Machorium - Muscle Aquarium Simulator-, where idle fun meets creative sandbox play. Earn points to unlock and customize your ideal muscle-filled aquatic world, all while enjoying the relaxed vibes NEOLAVI brings to this indie simulation.
About this game
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.
・Placing a macho in the aquarium generates macho points every second.
Feeding them their favorite protein generates additional points.
Enhance your favorite machos at the shop to increase the point generation rate.
・Use accumulated points to unlock items in the shop to decorate your aquarium.
・Arrange the inside of the aquarium freely with unlocked items such as rocks, driftwood, aquatic plants, and decorations to create a comfortable environment for the muscle men.
・Use the Picture-in-Picture feature to keep an eye on your favorite Machorium while working.
・Spending time with your muscle men in your customized Machorium, enjoying the view at your own pace, will surely bring you relaxation.
Use points generated by cute little decorative muscle men to unlock various items and create your ideal muscle aquarium, Machorium.
・Placing a macho in the aquarium generates macho points every second.
Feeding them their favorite protein generates additional points.
Enhance your favorite machos at the shop to increase the point generation rate.
・Use accumulated points to unlock items in the shop to decorate your aquarium.
・Arrange the inside of the aquarium freely with unlocked items such as rocks, driftwood, aquatic plants, and decorations to create a comfortable environment for the muscle men.
・Use the Picture-in-Picture feature to keep an eye on your favorite Machorium while working.
・Spending time with your muscle men in your customized Machorium, enjoying the view at your own pace, will surely bring you relaxation.
System Requirements
Will my PC run this? →Minimum
Minimum:
- OS: Windows 10 64bit
- Processor: 2.50GHz
- Memory: 4 GB RAM
- Graphics: NVIDIA GTX 1060 or Higher
Supported Languages
English, French, German, Spanish - Spain, Indonesian, Portuguese - Brazil, Polish, Russian, Simplified Chinese, Traditional Chinese, Japanese, Korean
Latest news
Patch NotesOfficial
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 to the Seasonal category in the shop. Enjoy a lineup perfect for hanami, featuring cherry blossoms, bamboo, and a traditional tea set for outdoor gatherings with your macho companions. Experience the breathtaking contrast of delicate cherry blossoms and powerful muscles in full bloom! Thank you for your continued support of Macholium -Muscle Aquarium Simulator- . {STEAM_CLAN_IMAGE}/44958392/f02e990a6c76fbe573301df5173e4b4760191af7.pngRead full article on Community Announcements (NEOLAVI)Patch NotesOfficial
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 been added to the Seasonal category in the shop. Celebrate Christmas or the New Year with traditional Japanese items, making your winter holidays cozy and festive in Macholium! ◆ Object Rotation Customization Previously, object rotation was based on the camera. Now, by enabling "World Axis Rotation" in the settings, you can rotate objects independently of the camera’s orientation. This feature is perfect for those who want to adjust object placement while viewing the aquarium from various angles. Thank you for your continued support of Macholium -Muscle Aquarium Simulator-. {STEAM_CLAN_IMAGE}/44958392/297ceccd9a2c3c6536d2fac994fe32b62035fe75.jpg{STEAM_CLAN_IMAGE}/44958392/76a1ab06a8fd0526ed4ce2c1ebed48604fbad50c.jpgRead full article on Community Announcements (NEOLAVI)Patch NotesOfficial
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 have been added to the Seasonal category in the shop. Decorate your space with glowing pumpkins and moon objects to enjoy the long autumn nights in style! Note: Seasonal items do not count towards the achievement item total. Thank you for your continued support of "Macholium -Muscle Aquarium Simulator-."Read full article on Community Announcements (NEOLAVI)Patch NotesOfficial
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 to the shop, featuring summer-themed items like palm trees and sunflowers. Let your muscle-bound companions enjoy a summer vacation with these cool additions! Note: Seasonal items do not count towards the achievement item count. ◆ Adjustable Window Size You can now freely adjust the window size in both Windowed Mode and Picture-in-Picture Mode. Thank you for your continued support of "Macholium -Muscle Aquarium Simulator-."Read full article on Community Announcements (NEOLAVI)Patch NotesOfficial
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 generated during the player's absence were not received upon restarting the game. We appreciate your continued support of "Machorium -Muscle Aquarium Simulator-".Read full article on Community Announcements (NEOLAVI)
