Main Assembly

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 1,301 reviews of which 1,111 were positive and 190 were negative resulting in a rating of 8.1 out of 10. 😎

The game is currently priced at 19.99€ on Steam.

The Steam community has classified Main Assembly into these genres:

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

Media & Screenshots

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

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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

Reviews

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

Jan. 2025

so far my 2nd fav game. this game is kinda hard at first and complex but u can figure it out by either yourself or ingame tutorials and if you do not care about how hard the game is like me then this is a perfect game.

July 2024

I love this game. I'm an engineering undergraduate and this game scratches the itches that I have to build cool things. The physics engine is quite advanced, with lift, CM, and center of thrust all being relevant to all your creations. There's no magical downforce spoiler or something. You have to make the airfoil yourself. Love it!

June 2024

The game in many ways is more enjoyable than Trailmakers. For whatever reason, the other game took off and this one is seemingly abandoned. There are still a lot of bugs in the game, and crashes Hopefully they come back to this project eventually

June 2024

Haven't play this for a period This sandbox game equipped a rare way to craft vessels, I call it Build-By-Skin. Build-By-Skin means you can manipulate mesh of blocks, transform it, twist it. The only 2 games I know using this way to build is Main Assembly and Homebrew. Build-By-Skin is more complicate and more flexible than Build-By-Blocks, it allows player spend more time to craft vessels with curvier appearance. As a changing player, I enjoy this a long time ago, but now I prefer some fast and easy fulfillment, so this game became less attractive to me.

May 2024

A very fun and unique way to build your creations. Unfortunately, it has been abandoned since 2021, to the best of my knowledge. It's a shame because it's such a good game, and once you understand how everything works, it's truly enjoyable.

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