Preview: Main Assembly (Steam Early Access)


  • Bright colorful graphics.
  • 2186mb Download size.
  • Steam achievements.
  • Controller support.
  • Optional tutorial section with 12 lessons on how to build.
  • The tutorial has collectible scrolls attached to optional tasks to get unlocks.
  • You play as a little robot drone that can fly around and mount onto robots to take control.
  • Can Dock and undock from robots/creations at will.
  • Graphics-Resolution, quality preset, motion blur, fullscreen, and v-sync.
  • Drone-customizable and you can get complete costume sets.
  • Builder sandbox gameplay.
  • Robot wars vibes.
  • Play how you want.
  • Powerful yet surprisingly easy, straightforward and you are able to grasp the mechanics quickly.
  • Invert mouse.
  • Can rebind controls.
  • Challenges-a roadmap of unlocks you move along as you complete the level challenges.
  • 3 modes-tutorial, challenges, and sandbox.
  • Challenge mode is as you would expect, you have to build a robot for specific tasks.
  • Sandbox-everything is unlocked and you can go nuts.
  • Seven locations-Flatland, frozen river Mokkjoki, Lake Fikaviken, Lammelunda lower C, Buretop Raceway, Holmendolmen Skijum, and Islanda airstrip.
  • Snap together construction.
  • Variety of shortcuts for button presses.
  • Can drag and stretch robot parts.
  • Steam workshop support allowing to share/download other people’s creations.
  • Use preset kits to start off a creation.
  • In-game you can adjust the building grid size, show boundaries, weld icons, display mass and mass location.
  • Feels polished.
  • A whole lot of fun to play.
  • 8 part categories -motor’s, wheels, thrust, chassis, mechanical, electronics, miscellaneous, and weapons. 3 weight categories-light, medium and heavy. Colour wheel where you can save your own blends/mixes.
  • Four-player multiplayer with an invite system.
  • Full robot destruction model.


  • The controller is missing some functions and the pop-ups are for the keyboard.
  • A bit intimidating at first.
  • Closing the current tutorial task means it won’t recognize you doing challenges meaning you have to restart.
  • Can’t create levels.
  • Multiplayer is an invite-only affair at the moment.

Jim Smale

Gaming since the Atari 2600, I enjoy the weirdness in games counting Densha De Go and RC De Go as my favourite titles of all time. I prefer gaming of old where buying games from a shop was a thing, Being social in person was a thing. Join me as I attempt to adapt to this new digital age!

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