How many people are playing Main Assembly right now?

1 people are playing Main Assembly on Steam right now, making it the 12312th most played game on Steam. In the last 24 hours it peaked at 3 players. The number updates every few minutes.

What is Main Assembly's all-time peak player count?

Main Assembly's highest concurrent player count on Steam is 281, reached in January 2021.

Is Main Assembly good? What do Steam reviews say?

83% of 1,005 Steam user reviews are positive (Very Positive).

How much does Main Assembly cost on Steam?

Main Assembly costs $3.99 on Steam (US), 80% off right now. The lowest price we've recorded is $1.99.

Does Main Assembly work on Steam Deck?

Main Assembly is Playable on Steam Deck (with small issues), according to Valve's Steam Deck compatibility check.

Main Assembly

by Bad Yolk Games · published by Team17 · Released Jan 26, 2021

Steam Deck PlayableLinux & Deck: Platinum

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Players now

#12,312

newvs 24h ago · updates every minute

Review score

83% positive

Very Positive1,005 reviews

Owners (est., from reviews)20.1K–60.3K

24h peak

Highest seen281

Jan 20215.8 years ago

Price on Steam

$3.99 −80%

$19.99Lowest ever $1.99 Dec 2025

Concurrent players

Last 7 days

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Players onlineSteam sale started

Media & details

Screenshots, achievements, specs and price history from Steam.

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Where to buy

Steam prices for United States (change the country in the top bar), and Steam keys from authorized stores.

Steam Official

Prices update every 6 hours

$3.99

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Other authorized stores

No authorized Steam key store lists this game right now.

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Editions and bundles on Steam

Main AssemblyEdition
−80% $19.99 $3.99
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Bundles with this game (3), biggest discount first

Main Assembly x KitHack Model ClubBundle
−78% $35.98 $8.08
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Abriss x Main AssemblyBundle
−71% $31.48 $8.98
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TerraTech x Main AssemblyBundle
−36% $40.48 $26.08
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Reviews

83% positive of 1,005 · Very Positive · Live from Steam

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Steam Deck

Works, but may need extra effort. Results from Valve's own testing.

Steam Deck Playable

!Default controller config not fully functional
!Controller glyphs do not match deck device
!Text input does not automatically invokes keyboard
✓Interface text is legible
✓Default configuration is performant
iExternal controllers not supported primary player

Steam Deck

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Patches & builds

Every build released on Steam for this game since we started tracking it, with the developer's patch notes. Updated within minutes of each new build.

Jan 26, 2021, 3:59 PM UTC
Build 6123531the current build when we started tracking3.4 GB on Windows

Patch notes

Aug 11, 2021
PatchMain Assembly 1.1 Patch - now live for Beta testing!
Hello inventors! We've been working hard to address a lot of feedback and are making the new build available to the community, addressing issues listed a little further down. Please share any feedback via Discord and we'll aim to release to the main branch by …
Jan 7, 2021
PatchMain Assembly Launches January 26th w/ Space Update!
Inventors of the future, past and present, Main Assembly will be unleashed into the wild of a plethora of creative minds, as the game launches on January 26th 2021! Version 1.0 will be live on release -- alongside the new SPACE Update! That's right, Inventors.…
Dec 16, 2020
PatchMain Assembly - Christmas Update!
Ho ho ho........ how about some bug fixes? Inventors, We've been hard at work with our elves to iron out some creases and mend some broken parts. The game dev life :D The following list comprises the tweaks and fixes in our latest update for Main Assembly: LIV…
Nov 9, 2020
PatchUpdate #5: Bot Brawls Game Mode, Weapons & Arenas, World Building V2 & More!
Hello Inventors! We are proud to bring you our 5th and largest update yet for Main Assembly! We have loads of content for you to get your hands on in this update. Let’s take a look at what’s included in Update #5! Bot Brawls Game Mode We can finally unveil our…
Nov 5, 2020
PatchDev Log #31: New Update Coming Soon! World Building V2, Water Physics & More!
Hello inventors! If everything goes as planned, which it will, we will be dropping a brand-new update this Monday November 9th! The update will contain four main features: The second iteration of World Building, Water Simulation, a new level, and a new game mo…
Oct 22, 2020
PatchMain Assembly Update #4 - Halloween Surprise, Fixes & Optimisations
Hello Inventors! We are proud to release Update 4: Halloween Surprise, Fixes & Optimisations! It's almost Halloween so we added some new drone cosmetics and we have a bunch of bug fixes and optimisations too. Halloween Surprise! Our Main Menu has had a Hallowe…

Other news (14)

Jan 26, 2021
Main Assembly 1.0 is now available!
Inventors, creative minds of the future! Main Assembly, has today left Steam Early Access - and has officially launched! Hooray! https://i.imgur.com/kCJ7XdI.png Featuring a comprehensive array of freeform building tools, players can now construct an even more …
Jan 21, 2021
Main Assembly -- Dev Log #38 Launch, 1.0 & Space!
Hey folks! *waves at the screen* https://i.imgur.com/DjgIJJj.png We hope everyone had a good end to the year -despite the current situation - and that all of you got off to a solid, creative start in the new year! 2021 will help you push your imagination to it…
Dec 17, 2020
Main Assembly -- Dev Log #37 Space, Spaceships. Roadmap, Festive Competition!!
Hello! Hello! Hello! We hope everyone is getting into the Holiday spirit! As much as we love working on Main Assembly, we do need our vacation; we are looking forward to ending this week in a smashing way! It's been a peculiar year, many fantastic creations fr…
Dec 10, 2020
Dev Log #36 -- Game Improvement, Plasma Shooter, Bot Brawl Competition
Hello! Greetings! How are we, Inventors? I trust that you're all keeping well :) How are your Christmas lists looking? On my Christmas list, I have asked for Christmas community bots, so don't let me down! :D At Bad Yolk we have been super busy -- and super pr…
Dec 3, 2020
Dev Log #35 -- Explosions, Lasers, build-up to Christmas!
Hello there, Inventors! First of all, Merry Christmas! We are now officially in December; which means one thing: CHRISTMAS BOTS! Yes, that's right! We want to see you cooking up some roast turkey bots, sleighs, snow-bots - you name it! So get those magnificent…
Nov 26, 2020
Nominate Main Assembly for a Steam Award!

Patches & builds

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History

What changed on Steam for this game since we started following it: prices and sales, builds, name, release date and review score.

Review score: 83% on 2026-11-01 → 83% today (1,005 reviews)

Nov 1, 2026Sale −80%$3.99 (was $19.99)

History

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Trading cards

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Main Assembly player count and quick facts

How many people are playing Main Assembly right now?: 1 people are playing Main Assembly on Steam right now, making it the 12312th most played game on Steam. In the last 24 hours it peaked at 3 players. The number updates every few minutes.
What is Main Assembly's all-time peak player count?: Main Assembly's highest concurrent player count on Steam is 281, reached in January 2021.
Is Main Assembly good? What do Steam reviews say?: 83% of 1,005 Steam user reviews are positive (Very Positive).
How much does Main Assembly cost on Steam?: Main Assembly costs $3.99 on Steam (US), 80% off right now. The lowest price we've recorded is $1.99.
Does Main Assembly work on Steam Deck?: Main Assembly is Playable on Steam Deck (with small issues), according to Valve's Steam Deck compatibility check.

Live data from Steam, tracked by SteamPlayerBase.

Store info

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.

Developer: Bad Yolk Games
Publisher: Team17
Release date: Jan 26, 2021
Install size: 3 GB minimum
Platforms: Windows
Genres: Simulation
Steam app ID: 1078920

Main Assembly

Key stats

Concurrent players

Media & details

Where to buy

Other authorized stores

Editions and bundles on Steam

Reviews

Steam Deck

Steam Deck

Patches & builds

Patch notes

Patches & builds

History

History

Trading cards

Main Assembly player count and quick facts

Related games

Related games

Store info

Main Assembly player count and quick facts

History

Steam Deck

Patches & builds

Patch notes

Related games