- Simulation
Game
Main Assembly
In Main Assembly take on the role of a drone with the ability to design and build robots for your everyday needs! Create unique ways to overcome various challenges in single-player or jump into the Sandbox where you can craft and play alone or with other players. Challenge yourself and your friends to create the most exciting looking robot using a freeform crafting tool and modular parts, and then control them through powerful visual programming. You can also customize your robots by changing the colour palette and drone cosmetic accessories for that personal touch.
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.
About Main Assembly
- Released
- January 2021
- Developer
- Bad Yolk Games
- Engine
- Unreal Engine 4
- Platforms
- PC (Microsoft Windows)
Where to get it
Release, studio and platform data from IGDB. Store links go to the sellers, not to us. We do not sell games and we do not host files.
Browse everything
Sorted, filterable and paged. Every link goes to the author’s own download.
From the developers
Official announcements, newest first. Posted on Steam.
- Community AnnouncementsMain Assembly 1.1 Patch - now live for Beta testing!{STEAM_CLAN_IMAGE}/35530744/99b1e6ddb7d6cd34600f8cfbb78eb5a714c5e3a2.png 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 late August. How to access the build: If this sounds like someth...
- Community AnnouncementsMain 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! Featuring a comprehensive array of freeform building tools, players can now construct an even more significant number of intricate machines and robots thanks to a brand new update launched alongside the game’s full release. The Final Frontier content introduces player...
- Community AnnouncementsMain Assembly -- Dev Log #38 Launch, 1.0 & Space!Hey folks! *waves at the screen* 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 its limits, not just your bots! Everyone is back from their vacation, fully rested and eager to get back into the groove of eliminating nasty, unwelcome bugs. Die bugs, DI...
- Community AnnouncementsMain 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. We were always going to outgrow this world eventually, now it's time to look up to what's possible out there. Now it's time to create th...
- Community AnnouncementsMain 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 from Inventors like yourselves have helped keep the spirits up! We hope to see even more fantastic inventions in 2021 :). Let's get to it,...
- Community AnnouncementsMain Assembly - Christmas Update!Ho ho ho........ how about some bug fixes? {STEAM_CLAN_IMAGE}/35530744/2fcf076ee6c32e6307f653701cd5bc3fff4fe8a1.png 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: LIVE NOW! Fixes & tweaks Fix for world build level not being able t...
- Mods indexed
- 1.4k
- Versions
- 0
- Newest tracked
- none yet
- Most disruptive update
- No breakage data for this game
of 8.0k on Steam Workshop
Most downloaded
Measured from the source's own counts, summed across every release.
- SU-57 by AkaizeSu-57 WARNING: Don't works in the Flatlands map because of a game bug. Weight: 261 kg Size: 6.32 x, 4.65 y, 1.3 z Parts: 92 Entirely modeled in game using a water mark software like a Blueprint set (it was hell....) Version 2.0 Notes: Programmation redone, lighter to run, faster and more stable....12.8k downloads
- Mercedes W11 F1twitch.tv/jokkol1ve Controls: W: THROTTLE A: TURN LEFT D: TURN RIGHT S: REVERSE F: REAR FLASH C: CHANGE CAMERA (MULTIPLE ANGLES) X: DAS Creators notes: This car is a full 1:1 scale F1 car. It is more a cosmetic build than a drivers car, but I tried making it drivable as well as secondary priority...10.5k downloads
- Tiny Speed Car7.6k downloads
- Rock BouncerPresenting my best attempt of a Rock Bouncer :) Mass: 424 Kg Dimensions: 3,24x / 2,68y / 1,58z Parts: 95 Controls: WASD - Movement Space - Brake Left CTRL - Hand Brake (Toggle) Up & Down Arrows - Regulate Engine Power R - Reset Engine Power to 100% C - First person view 1 - Lights 2 - Horn 3 - En...7.5k downloads
- T-65B X Wing StarfighterT-65B X Wing Starfighter This is my X wing I have been working on for a while (about 150 hours). It's colored after the red squadron X wing and its 1:2 scale, works in space and on ground. This is how you control the X wing: *MOUSE/KEYBOARD CONTROLS* ----------------------------------------------...7.3k downloads
- Horten Ho 229 -- WW2 german fighter jetThe well known Ho 229 was a german flying wing fighter design of WW2. Only prototypes flew before the war ended, no production was ever started. This was the second replica I built back in the first closed beta back in 2019. Early beta versions had quite the buggy aerodynamics, hence I only manag...7.1k downloads
- Cargo Handling DroneIts a drone that can carry cargo with a suction cup. Comes with blade guards for collision resistance. Controls W/S - Forward/Back A/D - Strafe Left/Right Q/E - Turn Left/Right Space/LeftShift - Up/Down R - Toggle Suction Cup6.9k downloads
- CSC-W24 (MISSILE UPDATE)Version 0.10 beta Controls: Throttle: Shift/RT Pitch: W-S / LSB Up-Down Roll: A-D / LSB Left-Right Yaw: Q-E / - Missile camera: V/BACK Vehicle camera: C/Y Primary weapons: LMB, TMB1(Ctrl)/A, X Secondary weapons: Hold RMB/RB + LMB, TMB1(Ctrl)/A, X Brake: Space/LT Missiles launching: Hold RMB/RB +...5.9k downloads
- Subaru BRZCar heavily inspired by the Rocketbunny v3.5 kit for Subaru BRZ / Toyota GT86 / Scion FRS cars. There are some differences, but the main styling is the same. I am planning on streaming Main Assembly at some point, so feel free to go follow twitch.tv/jokkol1ve if you want to get notified when I st...5.7k downloads
- Fairchild Model 24This is a 0.4:1 scale replica of the famous Fairchild Model 24 civil two seater. Perfect size for the bot. It flies pretty slow, even for a civil propellor-driven aircraft, and can therefor stall easly. It's my first replica I've built, back in the first Beta. Updated for Early Acces Release: twe...5.1k downloads
- Futuristic Race KartVersion 2.3 (ENGINE UPDATE) (If the fps is low, delete the grilles but this will change the driving characteristics) Controls: Move: WASD/RT, LT, L Hand brake: Space/RB Light: Q/X Camera: C/Y Hood: E/B Race/Drift mode: LShift-Ctrl / D-pad up-down Drift tip: Swich to the Drift mode. When steering,...5.1k downloads
- Subaru 22BControls: W - Forward A/D - Steering S - Reverse/Brake Space - Brake C - Camera Select5.1k downloads
- Aptera 2e (BOAT UPDATE)Version 3.0 I made an Aptera 2e (2008) with a new interior, adjustable suspension and it can swim on the water as well. Controls: Move: WASD/RT, LT, L Hand brake: Space/RB Mode Chill/Sport/Boat: Shift-2 Ctrl-1/D-PAD Up Down (boat mode is automatic) Light: Q/A Cameras: C/Y Center screen: F/X (It a...4.5k downloads
- LMP1twitch.tv/jokkol1ve 1:2 Scale LMP1 car v 1.1 IMPORTANT: YOU HAVE TO TURN THE CAR ON FIRST TO DRIVE IT! LEFT SHIFT: Car On/Off WASD: Driving SPACEBAR: Brake F: Flash Headlights R: Rainlights/Rear warning lights X: Open/Close Doors Length, width and weight scaled in 1:2 in accordance with the offic...4.3k downloads
- HexieHexie is a simple to use, yet complex walker. All you need to control it is WSAD.4.3k downloads
- R-352 Sepia (Ace Combat 3)Read Description!! Controls at least. This plane has a lot of automated features so the programming maybe hard to read. If you insist on reading the programming for controls, only read information from docking station. Details of this plane that you might want to know before flight: 1. Use contro...4.2k downloads
- X-29Update: Faster speed, more reliable landing gear, G meter, NASA logo and some shape fixes. WARNING: 1. This plane is huge, so do not attempt to spawn it in a multiplayer server. It would crash the server. 2. This plane is a CPU eater so you can technically run at high graphics because I am sure t...4.0k downloads
- Jet PlaneMy first plane Version 5.2 Controls: On the ground Steer: A-D / LSB Left-Right Incrase/Decrase power: LShift-LCtrl In the air Pitch: W-S / LSB Up-Down Roll: A-D / LSB Left-Right Incrase/Decrase power: LShift-LCtrl Mode swicher: [+ -] or Q - E / D-PAD Up Down 1st mode: normal mode 2st mode: strong...3.8k downloads
- F-ZERO Golden FoxF-ZERO Golden Fox 1991 This bot still in development, so I'm sharing the process with you. This vehicle has increased speed and handling with a lot of durability, but for now no automation. Command List Keyboard Accelerate W Brake / Reverse S Turn Left A Turn Right D Brake Space Turbo Shift Hover...3.8k downloads
- F-ZERO Blue Falcon V2F-ZERO Blue Falcon 1991 (V2) This vehicle has increased speed and handling, but for now the automation is unstable. Short Circuit times between 24 and 32 seconds (or suicide) Command List Keyboard Accelerate W Brake / Reverse S Turn Left A Turn Right D Brake Space Turbo Shift Hover Toggle F Light...3.5k downloads
- Panzer IIIControls: Forward/Backwards W/S Left/Right A/D Driver Camera E Cannon Camera F Cannon Left/Right Num4/Num6 Cannon Up/Down Num8/Num2 Shoot Cannon Space Shoot MG Alt Headlights H3.1k downloads
- SalmonV. 1.4 A fish that swims in the water and wont colide! (Will follow you if you jump out of the fish! You can also spawn multiple fish!). If you want to control the Salmon please use these controls: W/S : Forward and stop A/D : Turn Right and left Q/E : Rotate Ctrl/Space : Up and down 1: Turns off...3.1k downloads
- Fusion Hover (read the description)Version 4.7 Recomanded controller! (If you press LShift/A and Space/RB the engine can be overheated.) Controls: On the ground (optimalized for asphalt): WASD / LSB, RT, LT Space / RB - hand brake During a fall: W-S / LSB Up-Down - Pitch Q-E / LSB Left-Right - Roll A-D / RB-LB --------------------...3.0k downloads
- Forota Tuierthis is a purpose built track car meant for absolutely demolishing turns has heavy inspirations from the Saleen s7 but with a few minor touches Controls------------------------- W - throttle AD - steering S - Brake (tap lightly in corners) S - also reverse (Once you have stopped to a halt the car...3.0k downloads
Browse all 1.4k Main Assembly mods Sortable by downloads, rating and date.
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Why Main Assembly mods break
A mod is compiled against one version of a game. When the game updates, anything that reached into the parts that moved stops working, and it usually stops working silently rather than with a message that explains itself.
That is what the table above counts. It is not a guess: each row is a mod the community has reported as broken by that specific release. The number is a fair measure of how disruptive an update was, and it is the reason people delay updating a game they have modded heavily.
Common questions
Does IndexGG host Main Assembly mods?
No, and it never will. Every download link points at the author's own page on Nexus, GitHub, CurseForge or wherever they published it. We index the ecosystem; the files stay with the people who made them.
Where does the compatibility data come from?
From the communities that maintain it in the open, not from guesswork. Each claim carries how it is known, so a reported breakage is never presented as though the author said it.
Why is a mod listed as broken when it works for me?
Compatibility depends on your exact game version and the rest of your load order. A mod marked as broken in one release may work fine on an older one, which is exactly why the version is recorded next to the claim rather than a bare yes or no.