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Main Assembly

Wishlist Follow Ignore Install Unwatch Watch
App ID 1078920
App Type Game
Developer
Publisher Team17
Supported Systems Windows
Technologies Unreal Engine
Last Changenumber 28983991
Last Record Update 14 May 2025 – 15:23:44 UTC ()
Release Date 26 January 2021 – 16:00:00 UTC ()
😎 80.29%
1k reviews
5
In-Game
+4
🧊 3D 👥 Online Co-Op 🤝 Co-op 🧱 Sandbox 🏠 Building

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.

Additional Information

Developer Bad Yolk Games
metacritic_name Main Assembly
controller_support partial
community_visible_stats Yes
workshop_visible Yes
ReleaseState released
Publisher Team17
eulas
0 ↴
id1078920_eula_0
nameMain Assembly EULA
urlhttps://store.steampowered.com//eula/1078920_eula_0
version1
Store Release Date 26 January 2021 – 16:01:15 UTC ()
osarch 64
community_hub_visible Yes
Social Media https://discord.gg/mainassembly
https://www.facebook.com/BadYolkGames/
https://www.twitch.tv/badyolkgames
https://x.com/BadYolkGames
https://www.youtube.com/channel/UChbuHV7NUa4P69fiy5zDOhw/
Primary Genre Simulation (28)
Store Genres Simulation (28)
Steam Release Date 26 January 2021 – 16:00:00 UTC ()
Store Asset Modification Time 10 November 2022 – 09:04:06 UTC () (1668071046)
library_assets
library_capsuleen
library_heroen
library_logoen
logo_position ↴
pinned_positionCenterCenter
width_pct66.82206724376545
height_pct100
osextended empty string
review_score 8
review_percentage 84
Detected Technologies (?) Unreal Engine, CEF SDK, NVIDIA_APEX SDK, NVIDIA_Nsight_Aftermath SDK, NVIDIA_PhysX SDK, NvCloth SDK, Ogg SDK, Vorbis SDK
Steam Deck Compatibility
  • Steam Deck:
  • Some functionality is not accessible when using the default controller configuration, requiring use of the touchscreen or virtual keyboard, or a community configuration
  • This game sometimes shows mouse, keyboard, or non-Steam-Deck controller icons
  • Entering some text requires manually invoking the on-screen keyboard
  • In-game interface text is legible on Steam Deck
  • This game's default graphics configuration performs well on Steam Deck
  • Note: This game does not default to external Bluetooth/USB controllers on Deck, and may require manually switching the active controller via the Quick Access Menu
  •  
  • SteamOS:
  • This game runs successfully on SteamOS
  • Note: Entering some text requires manually invoking the on-screen keyboard
  • Note: Some functionality is not accessible when using the default controller configuration, requiring use of the touchscreen or virtual keyboard, or a community configuration
  • Note: This game does not default to external Bluetooth/USB controllers on SteamOS, and may require manually switching the active controller via the Quick Access Menu
  •  
  • category: Playable
  • steamos_compatibility: Compatible
  • test_timestamp: 5 March 2022 – 00:00:00 UTC
  • tested_build_id: 6123531
  • configuration:
    supported_inputgamepad
    requires_manual_keyboard_invoke1
    requires_non_controller_launcher_nav0
    primary_player_is_controller_slot_01
    non_deck_display_glyphs1
    small_text0
    requires_internet_for_setup0
    requires_internet_for_singleplayer0
    recommended_runtimeproton-experimental
    requires_h2640
    requires_voice_files0
    gamescope_frame_limiter_not_supported0
    hdr_support0
Early Access Release Date 11 June 2020 – 00:00:00 UTC ()
First seen on SteamDB 30 April 2019 – 12:27:56 UTC (), in changelist #6175879

Supported Languages

10 Languages Interface Full Audio Subtitles Achievements
English Yes Yes Yes Yes
French Yes Yes Yes
Italian Yes Yes Yes
German Yes Yes Yes
Spanish - Spain Yes Yes Yes
Russian Yes Yes Yes
Simplified Chinese Yes Yes Yes
Traditional Chinese Yes Yes Yes
Portuguese - Brazil Yes Yes Yes
Japanese Yes Yes Yes

Tags

🧊 3D 👥 Online Co-Op 🤝 Co-op 👤 Singleplayer 🧱 Sandbox 🏠 Building 🖥️ Simulation 💻 Programming 🤖 Robots 🔋 Physics 🤖 Artificial Intelligence 🔬 Science 🔧 Crafting 💼 Management 🧩 Logic 🕹️ Multiplayer 🤖 Automation 🌎 Immersive Sim 🏫 Education 🦹 Character Customization

Categories

Single-player Online PvP Online Co-op Steam Achievements Steam Workshop Steam Cloud Includes level editor Family Sharing Multi-player Co-op Cloud Gaming Cloud Gaming (NVIDIA) PvP

Hardware Categories

Partial Controller Support

Assets

Load all asset images
clienticon c6dac08bbaf164918a980933f4029c90ddd676b5
clienttga 5ba9ec1e31222a541c77a09ad74999a7c75caa41
icon 372ee3533572c5b29a5fffd0f096b3cdc9c8e8f9
logo 73710968d1adda2b6fcee1cb9e319f617891a5e1
logo_small 73710968d1adda2b6fcee1cb9e319f617891a5e1_thumb
small_capsule
englishcapsule_231x87.jpg
header_image
englishheader.jpg
library_assets_full
library_capsule ↴
image/englishlibrary_600x900.jpg
image2x/englishlibrary_600x900_2x.jpg
library_hero ↴
image/englishlibrary_hero.jpg
image2x/englishlibrary_hero_2x.jpg
library_logo ↴
logo_position/pinned_positionCenterCenter
logo_position/width_pct66.82206724376545
logo_position/height_pct100
image/englishlogo.png
Assets
main_capsulecapsule_616x353.jpg
small_capsulecapsule_231x87.jpg
headerheader.jpg
page_backgroundpage_bg_generated_v6b.jpg
hero_capsulehero_capsule.jpg
library_capsulelibrary_600x900.jpg
library_capsule_2xlibrary_600x900_2x.jpg
library_herolibrary_hero.jpg
library_hero_2xlibrary_hero_2x.jpg
community_icon372ee3533572c5b29a5fffd0f096b3cdc9c8e8f9.jpg
page_background_pathapp/1078920
raw_page_backgroundpage_bg_raw.jpg
timestamp15 October 2024 – 14:38:28 UTC

Trailer 343310 ↴

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all_ages true
is_highlight true
timestamp 5 August 2021 – 10:48:32 UTC

Trailer 339053 ↴

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all_ages true
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timestamp 7 January 2021 – 17:17:48 UTC

Trailer 325402 ↴

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trailer_category 0
trailer_480p ↴
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all_ages true
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timestamp 11 November 2020 – 11:21:07 UTC

Trailer 310541 ↴

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trailer_category 0
trailer_480p ↴
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trailer_max ↴
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all_ages true
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timestamp 7 January 2021 – 17:18:04 UTC

Trailer 292602 ↴

trailer_name FGS Trailer
trailer_category 0
trailer_480p ↴
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trailer_max ↴
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microtrailer ↴
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timestamp 9 November 2020 – 16:11:51 UTC

Steam charts

  • 5 players right now
  • 6 24-hour peak
  • 295 all-time peak 27 January 2021
SteamDB.info

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Store data

Twitch stats

  • 0 viewers right now
  • 0 24-hour peak
  • 6,518 all-time peak
  •  

Owner estimations

Monthly players breakdown

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Steam hub followers history

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User reviews history

  • 😎 Very Positive
  • 80.29% SteamDB Rating
  • 1,120 84.2% positive reviews
  • 210 15.8% negative reviews

Sign in to see reviews chart.

Markers

Date Label 30-day Peak
26 January 2021 Steam Release -
6 April 2021 ⇄ Humble Bundle: April 2021 Humble Choice (#17) -
4 November 2021 ⇄ Fanatical: Platinum Collection - Build Your Own Bundle (Nov 2021) -
24 November 2021 ⇄ Humble Bundle: Humble Best of Sandbox Bundle -
9 December 2021 ⇄ Fanatical: Abyss Bundle -
2 March 2022 ⇄ Fanatical: Build Your Own Backstage Bundle 2 -
21 July 2022 ⇄ Fanatical: Build Your Own Showcase Bundle -
13 October 2022 ⇄ Fanatical: Heroic Bundle -
15 December 2022 ⇄ Fanatical: Build Your Own Holiday Bundle (2022) -

Suggest new noteworthy markers in our Discord #forum.

How many players are playing Main Assembly right now on Steam?

Steam player counter indicates there are currently 5 players live playing Main Assembly on Steam.

Main Assembly had an all-time peak of 295 concurrent players on 27 January 2021.

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