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Main Assembly on Steam - User reviews, Price & Information

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You’re the designer, engineer and architect if you can imagine it you can create it! Construct robots of any shape or size from eight-legged spider bots to eerie UFO contraptions.

Main Assembly is a 3d, online co-op and co-op game developed by Bad Yolk Games and published by Team17.
Released on January 26th 2021 is available only on Windows in 10 languages: English, French, Italian, German, Spanish - Spain, Russian, Simplified Chinese, Traditional Chinese, Portuguese - Brazil and Japanese.

It has received 1,314 reviews of which 1,115 were positive and 199 were negative resulting in a rating of 8.1 out of 10. 😎

The game is currently priced at 3.99€ on Steam with a 80% discount, but you can find it for 0.43€ on Gamivo.


The Steam community has classified Main Assembly into these genres:

Media & Screenshots

Get an in-depth look at Main Assembly through various videos and screenshots.

System requirements

These are the minimum specifications needed to play the game. For the best experience, we recommend that you verify them.

Windows
  • Requires a 64-bit processor and operating system
  • OS *: WINDOWS® 7 (64-bit)
  • Processor: Intel® Core™ i3-4160 or AMD equivalent
  • Memory: 4 GB RAM
  • Graphics: NVIDIA® GeForce® GTX 750 or AMD equivalent
  • Storage: 3 GB available space

User reviews & Ratings

Explore reviews from Steam users sharing their experiences and what they love about the game.

21 hours played
July 2026
its very easy to use and so much fun to play with friends
211 hours played
July 2026
This game is one of a kind. I enjoy making all kinds of flying machines and designing flight controls. There is no other game where I can imagine an idea, make it into a concrete zany whirlibird of some sort, design controllers and nav systems for it, and then have my creations navigate and fly themselves, or have their own automatic dogfights in a real physics-based robot free for all. The combining of programmable control systems, physics modelling, and damage models is really incredible. I know this game hasn't received updates - but in my mind its really amazing and complete as it is - the content comes from your own mind - the devs already gave us the physical design tools, a solid programming interface with real math abilities, a damage model, and interaction with air, water, ground, and space - to really imagine and build and control most anything. The elegant programming interface and integration in particular is really rare for a game like this - and without being able to have my creations come to life with these real behaviors - the game wouldn't have nearly the richness it has. I do enjoy playing games in this genre - namely Scrap Mechanic, Trail Makers, AviAssembly, Space Engineers - and they each have their strengths - but none of them scratch the total imagine, realize, breath life, experiment, and play itch like this one does for me. I'm sorry the game hasn't advanced further or possibly really caught on - but I must say again - hats off to the devs - this is a very impressive work and I enjoy it immensely.
90 hours played
July 2026
this game is realy nice becus its like trailmakers but you dont have the restrictions of having to use glitches to make difrent formes and even then you are kind of limited but this game just throws everything like that out of the window and realy lets you do anything your creativity can imagine
10 hours played
March 2026
i bought this on sale for 1.99 but ive already made some cool stuff within three hours i can definetly see myself putting hundreds of hours into this game i highly recomend hurry up and buy it while its on sale
30 hours played
Dec. 2025
great engineering game, more complex side though provides alot more freedom with what you can do. If your intrested in engineering, design, or anything related to this i highly suggest you consider getting this game. The controls/UI are a bit odd to use, but not hard to get used to. Some of the rigid 3D parts (like suspension and wheels) feel somewhat lacking in their ability to visually or physically change which can cause things like suspension to stick out of surfaces so they work or wheels to be too small when you change your design or other feature/factor. despite this, im sure there is some work around to this, though i have not found one my self. If you want something that is essentially a super simplified solidworks, id go with this. Though there is other games (such as stormworks) that can be alot more beginner friendly while providing similar freedoms to this game.

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Frequently Asked Questions

Main Assembly is currently priced at 3.99€ on Steam.

Yes, Main Assembly is currently available at a 80% discount. You can purchase it for 3.99€ on Steam.

Yes, Main Assembly received 1,115 positive votes out of a total of 1,314 achieving a rating of 8.08.
😎

Main Assembly was developed by Bad Yolk Games and published by Team17.

Yes, Main Assembly is playable and fully supported on Windows.

No, Main Assembly is not playable on MacOS.

No, Main Assembly is not playable on Linux.

This information about Main Assembly is not available yet.

This information about Main Assembly is not available yet.

No, Main Assembly does not support VR.

Main Assembly offers both single-player and multi-player modes.

Main Assembly offers both Co-op and PvP modes.

No, Main Assembly does not currently offer any DLC.

Yes, Main Assembly is fully integrated with Steam Workshop. Visit Steam Workshop.

No, Main Assembly does not support Steam Remote Play.

Yes, Main Assembly is enabled for Steam Family Sharing. This means you can share the game with authorized users from your Steam Library, allowing them to play it on their own accounts. For more details on how the feature works, you can read the original Steam Family Sharing announcement or visit the Steam Family Sharing user guide and FAQ page.

You can find solutions or submit a support ticket by visiting the Steam Support page for Main Assembly.

Data sources

The information presented on this page is sourced from reliable APIs to ensure accuracy and relevance. We utilize the Steam API to gather data on game details, including titles, descriptions, prices, and user reviews. This allows us to provide you with the most up-to-date information directly from the Steam platform.

Additionally, we incorporate data from the SteamSpy API, which offers insights into game sales and player statistics. This helps us present a comprehensive view of each game's popularity and performance within the gaming community.

Last Updates
Steam data 28 August 2026 22:11 UTC
SteamSpy data 04 September 2026 09:36 UTC
Steam price 11 September 2026 18:26 UTC
Steam reviews 09 September 2026 21:58 UTC

If you'd like to dive deeper into the details about Main Assembly, we invite you to check out a few dedicated websites that offer extensive information and insights. These platforms provide valuable data, analysis, and user-generated reports to enhance your understanding of the game and its performance.

  • SteamDB - A comprehensive database of everything on Steam about Main Assembly
  • SteamCharts - Analysis of Main Assembly concurrent players on Steam
  • ProtonDB - Crowdsourced reports on Linux and Steam Deck Main Assembly compatibility
Main Assembly
Rating
8.1
1,115
199
Game modes
Multiplayer
Features
Online players
5
Developer
Bad Yolk Games
Publisher
Team17
Release 26 Jan 2021
Platforms
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