Games Like Main Assembly

Plasma is a pure engineering sandbox. Use advanced visual programming and robotics tools to create anything you can imagine.

Why similar: Programming 24.4% ★, Automation 14.9%, Sandbox 12%, Robots 11.8%, Building 9.8%

Why You'll Like It: Developed with a focus on advanced robotics and visual programming, this is perhaps the closest thematic successor to Main Assembly.

Enter the creative paradise of Scrap Mechanic! Build fantastic machines, go on adventures with your friends and defend against waves of evil Farmbots in this imaginative multiplayer survival sandbox. With Scrap Mechanic’s powerful creation tools you can engineer your own adventures!

Why similar: Building 20.9%, Sandbox 16.8%, Crafting 16.6%, Physics 13.8%, Multiplayer 10.2%

Why You'll Like It: A staple of the engineering sandbox genre, it allows for complex mechanical creations using sensors, logic gates, and physics.

Besiege is a physics building game about constructing medieval machines to annihilate armies, obliterate castles and overcome challenging obstacles. Conquer the campaign or skirmish with friends in Multiplayer!

Why similar: Building 24.9%, Sandbox 23.8%, Physics 20.7%, Multiplayer 13.3%, Simulation 10.3%

Why You'll Like It: This physics-based building game shares the same focus on creative engineering and destructive experimentation as Main Assembly.

Build the ultimate vehicle and explore a vast open world filled with challenges and adventure. Play solo or team up with friends in multiplayer to conquer the toughest obstacles. With a thrilling campaign mode and endless creative possibilities, Trailmakers is the ultimate sandbox for adventurers.

Why similar: Online Co-Op 25.8%, Building 16.5%, Crafting 16%, Sandbox 15.4%, Physics 13.6%

Why You'll Like It: It offers an intuitive yet deep vehicle and robot construction system that mirrors the freedom found in Main Assembly.

Join a world where you design, create and pilot your own air sea rescue service. Release your inner hero as you battle fierce storms out at sea to rescue those in need.

Why similar: Programming 30.2% ★, Automation 19.9%, Sandbox 14.4%, Building 13.2%, Physics 9.8%

Why You'll Like It: This game provides a highly technical environment where you must build and program functional vehicles to survive complex rescue scenarios.

Command the Nimbatus and craft drones out of hundreds of different parts. Survive unknown threats in a fully destructible, procedural universe, compete against other players in different arenas or enjoy complete creative freedom in the sandbox.

Why similar: Programming 26.1% ★, Robots 15.5%, Automation 13.8%, Crafting 9.9%, Logic 9.7%

Why You'll Like It: It features a procedural, physics-based drone building system that rewards creative engineering and experimentation.

Bring to life anything you can imagine from rockets and airplanes to cars and more. Automate them with a visual programming language. Explore 3D planets and make your own. Share your creations online. Complete contracts, conquer milestones, and unlock technology in the newly added Career Mode.

Why similar: Programming 27.4% ★, Science 21.5% ★, Automation 14.4%, Building 11.4%, Sandbox 8.7%

Why You'll Like It: A highly realistic aerospace simulator that requires precise engineering and programming to successfully launch and operate complex vehicles.

Build airplanes by snapping parts together, designing wing sections, and attaching engines. At any time, you can strap yourself into the cockpit and see how it flies with realistic physics. If you're not in the mood for building, over 100,000 airplanes are available to download for free.

Why similar: Automation 27.7%, Artificial Intelligence 20.4%, Building 16.9%, Sandbox 16.3%, Physics 13.9%

Why You'll Like It: It offers a sophisticated building suite that focuses on aerodynamics and physics, perfect for players who enjoy the design aspect of Main Assembly.

TerraTech is an open-world, sandbox adventure game, where you design and build your own creations through a mix of crafting, combat and discovery. Design vehicles from a huge library of blocks. Scavenge, craft and buy new parts to survive and become the ultimate planetary prospector.

Why similar: Robots 22.7%, Building 21.7%, Sandbox 18%, Crafting 13.8%, Multiplayer 9.3%

Why You'll Like It: This game focuses on modular robot construction and combat, allowing you to build unique machines from scavenged parts.

Design, build and wire up your own unique robot to complete challenging logic puzzles. LogicBots is a puzzle game where robots are used to complete the various levels.

Why similar: Programming 40.6% ★, Robots 21%, Sandbox 12.2%, Building 10.4%, Simulation 9.6%

Why You'll Like It: This title directly emphasizes the intersection of robotics and logic programming, challenging you to build bots that solve specific tasks.

Over 1000 unique components allow you to build and command voxel vehicles from the deep ocean to outer space! Forge strategies, allegiances and fleets strong enough to destroy eight deadly factions of the planet and reign supreme. A genre-defying mashup of simulation, building, RTS and RPG.

Why similar: Artificial Intelligence 21.2%, Building 18.4%, Sandbox 16.4%, Crafting 15.6%, Physics 13.7%

Why You'll Like It: For those who want extreme depth, this game allows for the construction of massive, fully functional warships and robots with complex internal logic.

The best just got better! Rediscover your engineering creativity in this genre-defining bridge engineering and puzzle solving masterpiece.

Why similar: Building 30.1%, Physics 21.6%, Simulation 20.1%, Crafting 17.2%, 3D 8.6%

Why You'll Like It: It captures the satisfying intersection of structural engineering and physics-based puzzle solving.

Stationeers puts you in control of the construction and management of a space station to run by yourself or online with your friends. Complex atmospheric, electrical, manufacturing, agriculture, and gravitational systems require your thought and management at all times!

Why similar: Programming 19.8% ★, Science 14.4% ★, Automation 13%, Building 7.6%, Crafting 7.5%

Why You'll Like It: It provides a deep, systems-oriented engineering experience where you must manage complex electrical and atmospheric logic to survive.

Virtual Circuit Board is the sandbox drawing-based logic simulator where you can build, program, decorate, and simulate anything from simple monochrome circuits to complex and colorful computers. Play with digital logic in this sandbox-only experience.

Why similar: Programming 28.1% ★, Science 17.5% ★, Automation 13.5%, Sandbox 9.4%, Building 9.3%

Why You'll Like It: This is a pure sandbox for building electronic circuits, offering a digital playground for those who love the logic systems in Main Assembly.

Learn CPU architecture with puzzles

Why similar: Programming 49.2% ★, Logic 15.3%, Automation 11.2%, Education 11.1%, Building 5.4%

Why You'll Like It: If the programming aspect of Main Assembly is your favorite part, this game lets you build a computer from the ground up using logic gates.

RoboCo is a sandbox game about designing and building robots to serve the needs of squishy, hapless humans in the world of tomorrow!

Why similar: Robots 24.6%, Building 19.2%, Sandbox 17.5%, Physics 14.6%, Education 12.4%

Why You'll Like It: A charming yet deep physics-based sandbox focused entirely on building robots to solve various challenges.

BUILD CIRCUITS. WRITE CODE. RTFM.

Why similar: Programming 54.6% ★, Automation 21.1%, Logic 10.3%, Education 4.8%, Simulation 3.5%

Why You'll Like It: A challenging puzzle game that focuses on building circuits and writing assembly code, perfect for fans of the logic-heavy side of engineering.

In Autonauts you must build, create, and automate. Start by establishing a colony, crafting bots and teaching them via Scratch-style programming to build an ever evolving autonomous paradise of agriculture, industry and enlightenment.

Why similar: Programming 37.7% ★, Automation 23.9%, Crafting 8.1%, Building 7%, Sandbox 6.9%

Why You'll Like It: It combines automation with a visual programming language, allowing you to teach robots how to perform complex tasks.

Make your dream cars a reality with Automation’s unparalleled car and engine design tools. Gain a competitive edge through smart engineering and business decisions to help you build an automotive empire. Will you become an industry leader, or just a footnote in automotive history?

Why similar: Management 15.4%, Science 14.3% ★, Building 14%, Automation 12.1%, Sandbox 11.4%

Why You'll Like It: It offers an incredibly detailed engine and chassis design suite that appeals to those who love the technical side of building.

The main purpose of this game is showing and watching machines made out of blocks. Some of the game-modes allow you to battle or race against other players. (testing phase) You can create your original machine with ease by reassembling those machines that are distributed, or by using the automatic control block.

Why similar: Building 30.9%, Sandbox 27.3%, Robots 16.9%, Multiplayer 15.7%, Simulation 9.2%

Why You'll Like It: A multiplayer-focused building sandbox that allows for the creation of complex vehicles and robots with various mechanical parts.

World of Contraptions is a physics-based building game in which you build the most varied contraptions to solve the most diverse types of puzzles. Win dozens of levels with different types of obstacles. Design the best contraption for each challenge using a giant collection of blocks.

Why similar: Programming 17.5% ★, Science 15.2% ★, Robots 12.2%, Automation 11.5%, Building 9%

Why You'll Like It: This physics-based building game focuses on creating unique machines to navigate obstacles, mirroring the creative spirit of Main Assembly.

Build physically simulated rovers to transport awkwardly shaped cargo across the rugged terrain of Mars. Earn funds, unlock new parts, and use your ingenuity to help the Martians establish a new home. Playable solo or in online co-op!

Why similar: Science 20.3% ★, Robots 14.9%, Co-op 14.8%, Building 10.9%, Sandbox 10.2%

Why You'll Like It: It combines physics-based vehicle building with logistical challenges, requiring you to design machines that can handle difficult terrain.

Mechanica is a multiplayer open-world survival game involving building and programming. Create your own bases, defenses, manufacturing systems and more. Explore the map and expand the scope and complexity of your creations.

Why similar: Programming 38.4% ★, Building 13.7%, Automation 13.3%, Robots 12.5%, Logic 9.6%

Why You'll Like It: A survival-crafting game that heavily incorporates base building and programming to automate your resource gathering.

Invent a new computer! Logic World is a first-person sandbox simulation game that's all about digital logic. Play alone or with friends, design unique machines, build up layers of complexity, and experience the joy of circuits!

Why similar: Science 22.1% ★, Automation 18.4%, Building 12.1%, Sandbox 10.6%, Education 10.1%

Why You'll Like It: This game is a dedicated sandbox for building complex digital logic circuits in a 3D environment.

Build a sophisticated robot factory optimized to perfection in an infinite voxel world. Mine and harvest resources, automate your production lines and manage complex systems while researching your way to become the galaxy’s leading robotics megacorp.

Why similar: Automation 18.9%, Robots 15.5%, Crafting 11.2%, Online Co-Op 11.1%, Building 11%

Why You'll Like It: A first-person factory-building game that requires complex logic and automation to manage large-scale production.

Brickadia is a next-generation brick building sandbox that gives you the tools to create and play, your way. Build massive worlds, invent cool contraptions, and play in them however you like - all with your friends!

Why similar: Sandbox 17.1%, Building 16.6%, Physics 14.9%, Logic 13.1%, Multiplayer 9.7%

Why You'll Like It: A creative sandbox that focuses on building with physics-enabled blocks, offering a more open-ended construction experience.

Create, Collect, and Crash in Autocraft, a physics destruction sandbox. Create your own cars, rockets, tanks, planes, boats, and more.

Why similar: Sandbox 27.4%, Building 23.8%, Physics 18.1%, Crafting 12.7%, Simulation 11.6%

Why You'll Like It: This physics-based sandbox allows you to build anything from cars to planes, focusing on mechanical freedom.

Craft your workshop as an alchemist!‌ Harness arcane devices to automate crafting. Sell alchemical goods, fulfill commissions, and rise to become a renowned alchemy magnate. ‌Multiplayer Supported!‌ Invite master designers to (ahem) contribute their expertise—let them optimize your production lines!

Why similar: Automation 28.5%, Building 13.9%, Sandbox 13.3%, Crafting 12.2%, Multiplayer 7.5%

Gather resources, craft components, build vehicles, and code their logic in a physics-driven engineering sandbox and full scale space sim.

Why similar: Programming 27.3% ★, Science 19.5% ★, Building 10.5%, Crafting 10.1%, Sandbox 10.1%

Why You'll Like It: This game blends sandbox building with programming, allowing for the creation of complex, interactive machines.

Unleash your creativity and craft anything from flying cars to jet-powered toilets.Fair warning: there's a learning curve. But once you've got it, the sky's the limit for your creations!While active development is paused, we focus preserving the game and keeping it accessible.

Why similar: Programming 29.3% ★, Science 16% ★, Robots 11.4%, Building 8.9%, Sandbox 8.6%

Why You'll Like It: A vehicle construction game that provides a high degree of control over mechanical components and physics settings.

Desynced is a sci-fi strategy game with fully customizable units and behaviors. Gather, build, research, and explore the unknown. Alone or with friends, unveil the mystery of an AI on the edge of self-awareness and uncover the hidden truth in this blend of strategy, automation, and exploration.

Why similar: Programming 28.6% ★, Automation 18.2%, Sandbox 9.9%, Building 9.8%, Management 8.5%

You land on a frozen planet in a tiny rocket with a robot inside. Harvest and combine materials to discover new ones. Use visual programming to make the robot do the tiresome work for you. Slowly build a gang of self-sustaining robot workers and watch them terraform the planet.

Why similar: Programming 30.7% ★, Automation 19.3%, Robots 14.7%, Sandbox 10.8%, Crafting 10.4%

Use the Nimbatus Drone Creator to construct physically simulated drones and try them out in a virtual testing environment. Do you have what it takes to become a drone engineer?

Why similar: Science 20.4% ★, Simulation 12.5%, Crafting 12.2%, Sandbox 12%, Programming 11.9% ★

A physics sandbox game for people who like to play with digital toys. Create, control toys and define your goals.

Why similar: Sandbox 17.1%, Building 16.3%, Physics 14.2%, Robots 12.2%, Logic 9.2%

Retro Gadgets is a sandbox where you build, code, and customize gadgets inspired by old-school electronics.

Why similar: Programming 33.8% ★, Automation 21.5%, Building 12.3%, Education 10.6%, Sandbox 9%

Use real Python code to automate machines, robots, drones and more: Program self-driving vehicles; crack passwords; apply machine learning; automate logistics; use image processing to guide missiles. Gain real coding skills and solve exciting bite-sized programming challenges.

Why similar: Programming 27% ★, Automation 15.5%, Science 14.9% ★, Robots 11.9%, Logic 8.8%

Create, automate and defend an impenetrable base. Assemble and command a Bot army to combat an entire Piratebot invasion. Build, program and battle your way through five different zones.

Why similar: Automation 22.3%, Programming 21.5% ★, Crafting 12.6%, Sandbox 11.4%, Building 10.3%

A sandbox battle simulator game where you can build your own shape-shifting warbots, program their AI, and watch them smash each other up on the battlefield! Join the battles yourself by taking control of the warbots! Use Steam Workshop to check out warbots created by players from around the world!

Why similar: Programming 32% ★, Robots 19%, Sandbox 13.2%, Building 11%, Physics 10.9%

Rover Builder is a 3D engineering sim tasking you to create the right rover to complete the job. Unleash your creativity in the garage, building vehicles using an impressive array of parts, materials and machinery. Or try your hand at level editor - creating entire missions and levels from scratch!

Why similar: Science 26.9% ★, Robots 19.7%, Building 15.3%, Sandbox 14.6%, Physics 12%

Build incredible machines with scrap parts, navigate the wildest Amusement park rides and challenge iconic creepy Neighbor and his evil bots! Become a true Engineer, solo or with friends!

Why similar: Crafting 17.1%, Building 16.4%, Sandbox 15.2%, Co-op 12.8%, Physics 12.8%

You’re a machine learning specialist who makes neural networks but your cat seems to be better at it. Now you must solve puzzles to build a cat-to-human translation system (who knows what else this cat is capable of!). Earn a fortune, buy kickass cat outfits, learn how machine learning really works!

Why similar: Programming 48.9% ★, Science 15.5% ★, Education 11.8%, Building 7.5%, Sandbox 7%

Make Mars your own! Take control of the world’s most sophisticated AI (AMI) and terraform the surface of the Red Planet for a city-building experience on a planetary scale. Transform this barren world into a lush paradise and explore the surface for any ancient secrets that may be waiting.

Why similar: Online Co-Op 16.8%, Automation 16.7%, Science 16.5% ★, Robots 13.6%, Building 9.6%

Build your own vehicles or download one of the more than 200,000 creations already uploaded to the Workshop and experience the dynamic driving and destruction physics of Brick Rigs!

Why similar: Sandbox 29.1%, Building 27.2%, Physics 19.5%, Multiplayer 16%, Simulation 6.8%

Build your robot. Battle your robot. Robot Rumble 2 is the premier robot combat building simulator, where you create your robot from real-world inspired parts, then drive it in the arena to defeat other robots.

Why similar: Programming 31.6% ★, Robots 20.5%, Building 11.8%, Physics 11%, Sandbox 10.3%

Good Company is an in-depth management sim about building a trail-blazing tech corporation. Assemble complex production lines, manage employee logistics, and sell high-quality products on the market to become the best company in the whole county!

Why similar: Automation 16.8%, Online Co-Op 10.4%, Building 10.3%, Robots 9.9%, Sandbox 9.4%

Build and fly your own airplane! Complete missions to earn money, upgrade your plane, and discover new locations in an open world.

Why similar: Science 22.3% ★, Building 21.8%, Sandbox 17.2%, Physics 15.7%, Crafting 14.3%

Infinifactory is a sandbox puzzle game by Zachtronics, the creators of SpaceChem and Infiniminer. Build factories that assemble products for your alien overlords, and try not to die in the process.

Why similar: Programming 36.3% ★, Automation 24.4%, Building 15.1%, Sandbox 12.3%, Logic 5.9%

Powerful Realtime 3D Electronic Circuit Simulator

Why similar: Programming 35.6% ★, Sandbox 14.2%, Education 11.1%, Logic 11%, Simulation 9.4%

Build the most advanced operating system ever created! Can you master the fictional simulation language of this mind-bending machine? Design circuits, automate UBITS (coloured mobile data blocks), and optimize your system. The Admin is always watching, and he’s not what he seems.

Why similar: Programming 36.1% ★, Automation 21%, Building 10%, Sandbox 9.8%, Logic 8.4%

Master the most counter-intuitive logic in existence. Created by the researchers who defined Quantum Literacy, explore an open-ended puzzle world where you craft real quantum algorithms, solve 500+ challenges, hack other players asynchronously, and gain insights textbooks can’t provide.

Why similar: Programming 26.7% ★, Automation 15.8%, Science 14.7% ★, Logic 10%, Education 8.1%

Build intricate supply chains to meet your feline customers' needs. Discover underground and air transport layers, a vast research tree, procedural worlds, machine learning, and endless automation in this relaxing, enemyless game.

Why similar: Programming 21.2% ★, Science 17% ★, Automation 15.2%, Building 9.9%, Crafting 8.6%

Alan's Automaton Workshop is an open-ended programming puzzle game. Start a new business with Alan Turing and his groundbreaking innovation: the Turing Machine. Build unique automatons, and solve all kinds of problems from clients.

Why similar: Programming 34.2% ★, Automation 20.3%, Education 10.5%, Logic 10.3%, Sandbox 10.1%

Manufactoria 2022 is a constructive puzzle game about pushing robots around. (It's okay, they don't complain.) Use simple parts to engineer solutions to open-ended problems, then rebuild 'em better! Take a company from your backyard to the soaring heights of success! How hard could it be?

Why similar: Programming 34.9% ★, Automation 23.3%, Robots 18%, Logic 13.3%, Simulation 4.5%

"Falling sand" style particle sandbox, now with circuits and stickmen!

Why similar: Automation 19.2%, Science 15.8% ★, Sandbox 14.9%, Physics 11.1%, Logic 9.7%

Embark on your asteroid hauling career with Veritago Fortana. Start with a basic ship and earn credits to upgrade, customise and repair as you try to fulfil larger and harder contracts. Built exclusively for VR, use your own hands to build, wire and fly using 100s of interconnecting components.

Why similar: Programming 25.1% ★, Science 17.1% ★, Automation 17%, Sandbox 10.2%, Education 8.9%

Icaria is a robot colony builder where everything can be programmed. Build factories, design logistic networks, terraform the landscape, and explore an unknown alien world.

Why similar: Programming 29.8% ★, Automation 19.6%, Robots 12.2%, Building 10.7%, Crafting 10.6%

Build, cable, and automate. Assemble racks, servers, and switches, connect enough capacity for each app, earn money from processed data, and unlock gear and bigger customers with XP and reputation. Follow colored data packets as your center comes to life.

Why similar: Automation 22.1%, Programming 19.6% ★, Logic 12.2%, Management 8.4%, Simulation 8.4%

PixPhys is a 2D engineering sandbox with huge technical possibilities and scope for imagination: design equipment from a jet-powered cart to space stations.

Why similar: Programming 27.1% ★, Automation 19.1%, Sandbox 13.3%, Building 11.7%, Physics 11.1%

Crazy physics and high-speed races! Craft vehicles cleverly by combining building blocks and mechanical parts to create powerful drivetrains. Unlock new parts, race for the gold, and challenge your friends in multiplayer.

Why similar: Building 25.6%, Crafting 22.6%, Physics 20.3%, Multiplayer 14.6%, Simulation 9%