- #1 Trailmakers
97% matchVery Positive92% of 35,682 reviews2019
Dev: Flashbulb
Windows
Median: 3.9 hrsMean: 15.5 hrs≥1hr: 86%
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: Building 22%, Sandbox 20.3%, Physics 18.1%, Open World 16.3%, Multiplayer 10.9%
Why You'll Like It: Offers a robust physics-based sandbox where you build vehicles to traverse challenging terrain and complete transportation missions.
- #2 Main Assembly
96% matchVery Positive83% of 1,338 reviews2021
Dev: Bad Yolk GamesPub: Team17
Windows
Median: 54 minMean: 7.0 hrs≥1hr: 50%
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.
Why similar: Science 19.3%, Robots 14.3%, Co-op 14%, Building 10.4%, Sandbox 9.7%
Why You'll Like It: Provides an advanced robotics and vehicle construction system with a focus on physics and creative problem-solving.
- #3 Scrap Mechanic
96% matchVery Positive92% of 117,481 reviews2016
Dev: Axolot Games
Windows
Median: 11.2 hrsMean: 58.2 hrs≥1hr: 91%
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 21%, Sandbox 16.6%, Co-op 15.6%, Physics 13.9%, Open World 13.4%
Why You'll Like It: Features deep creative building mechanics and physics-based interaction that mirror the rover-construction gameplay of the seed.
- #4 RoboCo
95% matchVery Positive88% of 206 reviews2026
Dev: Filament Games
Windows
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%, Building 19.3%, Sandbox 17.3%, Physics 14.7%, Funny 8.6%
Why You'll Like It: A sandbox game centered on building custom robots to solve physics-based puzzles and transport objects.
- #5 Juno: New Origins
94% matchVery Positive89% of 3,441 reviews2023
Dev: Jundroo, LLC
Windows · Mac
Median: 1.0 hrsMean: 13.1 hrs≥1hr: 50%
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: Science 25.3%, Space Sim 24%, Building 13.8%, Sandbox 10.3%, Physics 9.1%
Why You'll Like It: Allows for highly detailed vehicle construction and space-flight simulation with realistic physics.
- #6 Aviassembly
94% matchOverwhelmingly Positive97% of 8,776 reviews2025
Dev: Jelle Booij
Windows
Median: 6.2 hrsMean: 7.4 hrs≥1hr: 82%
Build and fly your own airplane! Complete missions to earn money, upgrade your plane, and discover new locations in an open world.
Why similar: Transportation 26.6% ★, Building 14.9%, Science 14.5%, Sandbox 11.4%, Physics 10.8%
Why You'll Like It: Combines physics-based construction with flight and transportation mechanics in a sandbox environment.
- #7 Stormworks: Build and Rescue
92% matchVery Positive90% of 58,404 reviews2020
Dev: Geometa
Windows · Mac
Median: 17.3 hrsMean: 112.7 hrs≥1hr: 91%
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: Sandbox 27.2%, Building 25.4%, Open World 19.2%, Physics 19%, Exploration 9.1%
Why You'll Like It: Focuses on complex vehicle construction and physics-based missions that require precise engineering to succeed.
- #8 Rover Builder
93% matchMixed68% of 81 reviews2022
Dev: Hatfuls GamesPub: PQube
Windows
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: Mars 38.4% ★, Science 16.2%, Robots 11.8%, Building 9.4%, Sandbox 8.8%
Why You'll Like It: Directly focuses on the challenge of building rovers to navigate and operate on alien terrain.
- #9 Kerbal Space Program
91% matchOverwhelmingly Positive95% of 141,003 reviews2015
Dev: SquadPub: Private Division
Windows · Mac · Linux
Median: 5.4 hrsMean: 65.8 hrs≥1hr: 84%
In Kerbal Space Program, take charge of the space program for the alien race known as the Kerbals. You have access to an array of parts to assemble fully-functional spacecraft that flies (or doesn’t) based on realistic aerodynamic and orbital physics.
Why similar: Science 24.4%, Space Sim 22.1%, Sandbox 14.2%, Physics 11.6%, Building 10.2%
Why You'll Like It: The definitive physics-based space construction game where vehicle design directly impacts your ability to explore and transport.
- #10 Besiege
91% matchOverwhelmingly Positive95% of 52,398 reviews2020
Dev: Spiderling Studios
Windows · Mac · Linux
Median: 2.4 hrsMean: 19.1 hrs≥1hr: 71%
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 22.4%, Sandbox 21.1%, Physics 18.7%, Multiplayer 10.5%, 3D 9.8%
Why You'll Like It: The gold standard for physics-based engineering puzzles where you must construct machines to transport or manipulate cargo.
- #11 Space Engineers
90% matchVery Positive89% of 133,721 reviews2019
Dev: Keen Software House
Windows
Median: 9.0 hrsMean: 96.0 hrs≥1hr: 88%
Space Engineers is a sandbox engineering game where you design and build ships, stations, and planetary bases in a fully destructible environment. Explore planets and space, mine resources, survive hazards, and engage in combat alone or with friends in Creative or Survival modes.
Why similar: Space Sim 22.3%, Co-op 16.9%, Building 12.4%, Sandbox 11.5%, Physics 10.2%
Why You'll Like It: A sandbox game that emphasizes structural integrity and physics-based construction in a space environment.
- #12 RoadCraft
89% matchMostly Positive75% of 15,663 reviews2025
Dev: Saber InteractivePub: Focus Entertainment
Windows
Median: 12.6 hrsMean: 33.9 hrs≥1hr: 94%
As the leader of a company specialized in restoring sites devastated by natural disasters, use your construction machinery to restart the local industry. Clear debris and faulty equipment, rebuild roads and bridges damaged by weather, and much more!
Why similar: Transportation 28.9% ★, Building 17.6%, Co-op 17%, Physics 13%, Multiplayer 6.9%
Why You'll Like It: Focuses on physics-based driving and logistics management in challenging environments.
- #13 Star Trucker
89% matchMostly Positive79% of 5,148 reviews2024
Dev: Monster and MonsterPub: Raw Fury
Windows
Median: 3.2 hrsMean: 10.6 hrs≥1hr: 78%
Haul cargo, trade salvage and keep your space suit close as you search for fame and fortune among the stars in a game that puts an interstellar twist on the truck sim genre.
Why similar: Transportation 34.6% ★, Space Sim 24.8%, Physics 10.8%, Open World 10%, Sandbox 9.4%
Why You'll Like It: Offers a space-themed transportation experience that emphasizes the driving and maintenance of heavy-duty vehicles.
- #14 Poly Bridge 3
88% matchOverwhelmingly Positive96% of 2,038 reviews2023
Dev: Dry Cactus
Windows · Mac · Linux
Median: 2.5 hrsMean: 6.5 hrs≥1hr: 72%
The best just got better! Rediscover your engineering creativity in this genre-defining bridge engineering and puzzle solving masterpiece.
Why similar: Building 23.4%, Physics 17.3%, Simulation 13.8%, Puzzle 13.5%, Stylized 13.3%
Why You'll Like It: Focuses on the engineering and physics of transporting cargo across difficult terrain using custom-built structures.
- #15 TerraTech
87% matchVery Positive91% of 24,617 reviews2018
Dev: Payload StudiosPub: Mythwright
Windows · Mac · Linux
Median: 8.2 hrsMean: 33.0 hrs≥1hr: 90%
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 23.4%, Building 22.9%, Sandbox 18.6%, Open World 14.5%, Multiplayer 8.5%
Why You'll Like It: Allows you to build modular vehicles from scratch to explore, gather resources, and transport cargo.
- #16 Hydroneer
86% matchVery Positive86% of 27,793 reviews2020
Dev: Foulball Hangover
Windows
Median: 6.8 hrsMean: 21.9 hrs≥1hr: 85%
Hydroneer is a mining and base building sandbox. Dig for gold and other resources to turn a profit and enhance your mining operation. Build a base of operations, forge weapons, go fishing, and dig deep!
Why similar: Co-op 26.3%, Sandbox 17.8%, Building 16.9%, Open World 13.5%, Funny 9.2%
Why You'll Like It: Features physics-based logistics and resource transport that requires clever machine building to optimize efficiency.
- #17 GearBlocks
86% matchVery Positive91% of 735 reviews2023
Dev: SmashHammer Games
Windows · Linux
Explore a world of creative building, interactive machines, and gears - lots of gears. Build all things mechanical: cars, trucks, cranes, tanks, gearboxes, engines, clocks, anything you can think of. Test your creations to destruction in challenging scenarios, and share them in the workshop!
Why similar: Building 26.7%, Sandbox 21.5%, Physics 20%, Open World 10.9%, Simulation 8.4%
Why You'll Like It: A physics-based sandbox game that emphasizes mechanical engineering and custom vehicle construction.
- #18 ΔV: Rings of Saturn
85% matchVery Positive93% of 3,347 reviews2023
Dev: Kodera Software
Windows · Mac · Linux
Median: 8.3 hrsMean: 11.6 hrs≥1hr: 84%
A physics-based mining sim, set in the thickest debris field in Sol. Every action has a reaction, lasers are invisible without a medium, and your thrust is a potent weapon. Find trade, adapt your equipment to your playstyle, hire a crew to help. Unravel the mysteries of the rings, or just get rich.
Why similar: Space Sim 23.8%, Science 23%, Physics 12%, Procedural Generation 11.2%, Open World 9.2%
Why You'll Like It: Features physics-based space flight and cargo hauling that requires careful navigation and management.
- #19 FOUNDRY
84% matchVery Positive81% of 3,779 reviews2024
Dev: Channel 3 EntertainmentPub: Paradox Interactive
Windows
Median: 7.3 hrsMean: 46.3 hrs≥1hr: 87%
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: Co-op 17.8%, Robots 17.7%, Building 12.9%, Sandbox 11.8%, Procedural Generation 11.7%
Why You'll Like It: A first-person factory-building game that shares the industrial, construction-heavy aesthetic and focus on logistics.
- #20 Occupy Mars: The Game
84% matchMostly Positive70% of 3,070 reviews2026
Dev: ▲ Pyramid Games
Windows
Median: 4.4 hrsMean: 34.4 hrs≥1hr: 78%
Survive and colonize Mars in a highly technical, open-world sandbox game. Build and upgrade your base, discover new regions, conduct mining operations, retrieve water, generate oxygen, grow crops, and fix broken parts.
Why similar: Mars 48.8% ★, Co-op 13%, Sandbox 10.3%, Building 10.1%, Open World 8.8%
Why You'll Like It: Provides a detailed Mars-themed survival experience with a heavy emphasis on vehicle and base management.
- #21 Space Engineers 2
81% matchMostly Positive76% of 4,590 reviews2025
Dev: Keen Software House
Windows
Median: 1.4 hrsMean: 7.9 hrs≥1hr: 60%
Space Engineers 2 is a playable Early Access Alpha sandbox focused on engineering, exploration, and colonization in a fully destructible universe. Design and build ships, stations, and planetary bases while uncovering the story of Miro and Ivan Sokol. Help shape the future of the Almagest system.
Why similar: Science 22.3%, Space Sim 18.2%, Building 14.3%, Sandbox 13.6%, Physics 10.7%
Why You'll Like It: Continues the tradition of sandbox building and physics-based survival in a space setting.
- #22 Stationeers
82% matchVery Positive88% of 9,014 reviews2017
Dev: RocketWerkz
Windows
Median: 10.2 hrsMean: 83.9 hrs≥1hr: 85%
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: Science 25.6%, Co-op 17.3%, Building 13.7%, Logic 12.8%, Sandbox 12.5%
Why You'll Like It: Offers complex engineering and physics-based survival in space, perfect for those who enjoy the technical side of building.
- #23 Spaceflight Simulator
81% matchOverwhelmingly Positive97% of 9,030 reviews2022
Dev: Team Curiosity ✦
Windows · Mac
Median: 5.3 hrsMean: 15.0 hrs≥1hr: 84%
In Spaceflight Simulator, you will get to build your rockets, plan launches and flights, attempt landings, deploy payloads and explore new worlds.
Why similar: Space Sim 30.4%, Science 23%, Sandbox 16.1%, Building 7.1%, Exploration 5.9%
Why You'll Like It: A minimalist but deep physics-based construction game centered on space exploration and vehicle design.
- #24 SimplePlanes
82% matchVery Positive93% of 10,848 reviews2015
Dev: Jundroo, LLC
Windows · Mac
Median: 2.5 hrsMean: 12.7 hrs≥1hr: 74%
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: Building 20.9%, Sandbox 19.8%, Physics 17.3%, Open World 14.1%, Funny 10.1%
Why You'll Like It: Provides a deep vehicle construction suite with realistic physics that rewards creative engineering.
- #25 Take On Mars
83% matchMixed55% of 2,030 reviews2017
Dev: Bohemia Interactive
Windows
Median: 3.0 hrsMean: 10.8 hrs≥1hr: 87%
Take On Mars places you right in the middle of mankind’s most exciting undertaking. Start out in the seat of a rover operator, finish as the first human to have ever set foot on the Red Planet.
Why similar: Mars 46.6% ★, Science 12.2%, Space Sim 10.7%, Building 6.2%, Sandbox 5.1%
Why You'll Like It: A simulation-focused title that captures the technical and exploratory spirit of Martian rover operations.
- #26 Instruments of Destruction
79% matchVery Positive91% of 1,541 reviews2024
Dev: RadiangamesPub: Secret Mode
Windows
Median: 54 minMean: 4.6 hrs≥1hr: 50%
Crash through walls and tear down buildings in Instruments of Destruction, a vehicle-action game featuring advanced physics-based demolition. Pilot 130+ unique vehicles across scores of challenge-packed missions or design your own contraptions and wreck highly-interactive sandbox worlds.
Why similar: Physics 37.8%, Stylized 23.4%, 3D 19.8%, Simulation 15.2%, Singleplayer 3.8%
Why You'll Like It: Features advanced physics-based construction that allows you to build complex machines to interact with the environment.
- #27 Nimbatus - The Space Drone Constructor
79% matchMostly Positive79% of 2,148 reviews2020
Dev: Stray Fawn StudioPub: Stray Fawn Publishing
Windows · Mac · Linux
Median: 3.1 hrsMean: 5.0 hrs≥1hr: 84%
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: Space Sim 24.2%, Robots 17.8%, Logic 10.8%, Building 10%, Sandbox 9.2%
Why You'll Like It: Focuses on building custom drones with physics-based parts to explore and survive in space.
- #28 Plan B: Terraform
76% matchVery Positive91% of 3,512 reviews2025
Dev: Gaddy Games
Windows
Median: 4.4 hrsMean: 11.2 hrs≥1hr: 81%
Terraform a lifeless rock into a lush and habitable world. Build trucks, trains, and sprawling factories on an enormous hexagonal planet. Grow its population to millions. Enjoy a dynamic simulation of atmosphere, temperature, water, and forests.
Why similar: Mars 43.3% ★, Transportation 27.8% ★, Sandbox 9.8%, Building 7.8%, Procedural Generation 7.2%
- #29 Kerbal Space Program 2
80% matchMostly Negative26% of 31,673 reviews2023
Dev: Intercept GamesPub: Private Division
Windows
Median: 7.7 hrsMean: 19.3 hrs≥1hr: 86%
Kerbal Space Program 2 is the sequel to the acclaimed space-flight simulation game Kerbal Space Program. Enter the next generation of space adventure with exciting new parts, stunning visuals, fully revamped UI and Map View, and rich new environments to explore.
Why similar: Science 23%, Space Sim 17.4%, Building 12.2%, Sandbox 11.4%, Physics 9.8%
Why You'll Like It: Expands on the original with more advanced construction tools and physics-based exploration challenges.
- #30 Crossout
78% matchMostly Positive75% of 68,841 reviews2017
Dev: Targem GamesPub: Gaijin Network Ltd
Windows
Median: 4.9 hrsMean: 56.2 hrs≥1hr: 81%
Crossout - the postapocalyptic MMO action game where you can create a unique design for an armoured vehicle from dozens of parts and then drive it into multiplayer battles raging on land and in the skies alike.
Why similar: Co-op 34.2%, Building 24.9%, Sandbox 23.4%, Multiplayer 17.5%
Why You'll Like It: Provides a deep modular vehicle building system with physics that is central to its gameplay loop.
- #31 Mars Horizon
77% matchVery Positive84% of 3,070 reviews2020
Dev: Auroch Digital
Windows · Mac
Median: 5.3 hrsMean: 9.3 hrs≥1hr: 93%
Lead a major space agency as you guide humanity to Mars in this strategy simulation game. Construct a base, design and build rockets, conduct missions throughout the Solar System, and write your own history of Space exploration. Created with support from the European Space Agency.
Why similar: Mars 40.7% ★, Science 14.9%, Space Sim 14.2%, Building 7.3%, Stylized 6.3%
- #32 Per Aspera
77% matchMostly Positive76% of 5,702 reviews2020
Dev: Tlön IndustriesPub: Raw Fury
Windows
Median: 5.0 hrsMean: 11.9 hrs≥1hr: 93%
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: Mars 43.8% ★, Science 16.4%, Robots 13.5%, Building 9.7%, Sandbox 8.3%
- #33 Blossom: The Seed of Life
73% matchVery Positive89% of 884 reviews2026
Dev: Pebbledust GamesPub: Pretty Soon
Windows
Terraform a dead planet back to life in this open world survival crafting game. Explore ruins, gather resources, print machines, drive modular vehicles, grow forests, biomes, and ecosystems. Create life and make it thrive with your own hands.
Why similar: Mars 45% ★, Space Sim 14.7%, Robots 11.9%, Building 7.8%, Sandbox 7.5%
- #34 Brickadia
73% matchVery Positive81% of 1,302 reviews2025
Dev: Brickadia, LLC
Windows
Median: 3.1 hrsMean: 31.0 hrs≥1hr: 81%
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 18.9%, Building 18.6%, Physics 16.8%, Co-op 14%, Logic 13.9%
- #35 PULSAR: Lost Colony
74% matchVery Positive90% of 5,710 reviews2021
Dev: Leafy Games
Windows · Mac · Linux
Median: 7.5 hrsMean: 16.7 hrs≥1hr: 88%
The co-op open-world space sim where everyone has a role! Pilot the ship. Reroute power. Launch nukes. Explore alien planets. Research new talents. Work together to find the Lost Colony! ...or just deliver some biscuits
Why similar: Space Sim 29.4%, Co-op 21.5%, Robots 18.2%, Open World 12%, Multiplayer 7.2%
- #36 ASTRONEER
74% matchVery Positive92% of 137,959 reviews2019
Dev: System Era Softworks
Windows
Median: 11.5 hrsMean: 44.2 hrs≥1hr: 87%
Interact with strange new worlds in a unique and tactile way, molding the environment itself as if it were clay in your hands. Build your base, master resource management, automate your production lines, and more as you unravel the mysteries of the universe, alone or with friends.
Why similar: Co-op 24.9%, Open World 18.7%, Sandbox 16.2%, Building 14.7%, Multiplayer 12.7%
- #37 Rover Mechanic Simulator
76% matchMostly Positive76% of 661 reviews2020
Dev: ▲ Pyramid GamesPub: Pyramid Games S.A.
Windows
Median: 4.4 hrsMean: 5.9 hrs≥1hr: 93%
As an Engineer - crew member of one of the first Mars colonies - you are responsible for repairing and maintaining Mars Rovers. In this advanced simulator you will learn the internal details of various Mars Rovers and their components.
Why similar: Mars 49.1% ★, Science 18.3%, Space Sim 17%, Logic 6.8%, Simulation 4.2%
- #38 Space Mechanic Simulator
75% matchMixed63% of 119 reviews2023
Dev: Atomic JellyPub: Wildlands Interactive
Windows
Median: 3.4 hrsMean: 5.1 hrs≥1hr: 84%
Become a Space Mechanic! Get your hands dirty, explore the depths of space and repair broken machinery. Diagnose problems using diagrams and tools, perform repairs, manage your resources and watch the simulated machinery come alive. Or just gaze upon the beauty of the Solar System.
Why similar: Mars 29.5% ★, Space Sim 24.2%, Science 21.7%, Building 10.4%, Physics 7.8%
- #39 Expeditions: A MudRunner Game
73% matchMixed57% of 4,685 reviews2024
Dev: Saber InteractivePub: Focus Entertainment
Windows
Median: 3.8 hrsMean: 14.8 hrs≥1hr: 81%
Embark on scientific expeditions with this new off-road adventure game. Lead research missions as you drive a variety of all-terrain vehicles, using high-tech tools and managing your camp and crew to ensure your success in the wild.
Why similar: Transportation 25.4% ★, Science 18.9%, Co-op 14.4%, Building 9.9%, Physics 7.8%
- #40 StarbaseSim
70% matchVery Positive97% of 59 reviews2025
Dev: AshtorakSimGames
Windows · Linux
Operate the Starship space launch system and learn how to catch a rocket to understand what it takes to colonize Mars in this ever-evolving simulation of SpaceX Starbase Texas.
Why similar: Space Sim 36.3%, Sandbox 18.8%, Logic 11.6%, Simulation 8.6%, 3D 8.4%
- #41 Infinite Rails
70% matchVery Positive89% of 83 reviews2025
Dev: Benjamin Voráč
Windows · Mac
A railway-building adventure in an endless, procedurally generated world. Lay tracks, transport passengers and goods, complete tasks, and unlock unique locomotives. Play solo or with friends and create your ultimate railway network!
Why similar: Co-op 19.5%, Sandbox 14.2%, Procedural Generation 11.8%, Building 11.7%, Physics 9.8%
- #42 Solar Expanse - Space Exploration Manager
68% matchVery Positive87% of 941 reviews2026
Dev: SpaceOpsPub: Games Operators
Windows
Median: 4.9 hrsMean: 12.3 hrs≥1hr: 80%
Explore the Solar System. Mine and drop asteroids. Colonize and terraform. Lead the space race and compete with other corporations on your way to profit. Watch the expansion of human race over the centuries.
Why similar: Science 27.4%, Space Sim 22.7%, Sandbox 13.4%, Physics 11.8%, Building 7.7%
- #43 Modulus: Factory Automation
68% matchVery Positive92% of 699 reviews2026
Dev: Happy VolcanoPub: Kwalee
Windows
Median: 3.2 hrsMean: 14.2 hrs≥1hr: 73%
Build, automate, & optimize production lines across sky islands with real spatial constraints. Every production line is an open-ended puzzle: which operators to use, how to route your belts and how to fit your factory into the landscape. Your solutions, like your factories, are uniquely your own.
Why similar: Building 27%, Sandbox 22.8%, Logic 16.3%, Open World 12.9%, Simulation 10.1%
- #44 Space Mechanic Simulator: Prologue
71% matchMostly Positive80% of 64 reviews2023
Dev: Atomic JellyPub: Wildlands Interactive
Windows
Space Mechanic Simulator: Prologue is a story prelude to the full version, which will introduce you to the world of cosmic repairs, greedy corporations, and cutting-edge technology.
Why similar: Mars 50.6% ★, Space Sim 19.5%, Science 10.4%, Logic 7.3%, Exploration 4.3%
- #45 Plasma
70% matchVery Positive90% of 1,093 reviews2023
Dev: Dry CactusPub: Dry Licorice
Windows
Median: 30 minMean: 5.3 hrs≥1hr: 37%
Plasma is a pure engineering sandbox. Use advanced visual programming and robotics tools to create anything you can imagine.
Why similar: Sandbox 16.6%, Robots 16.3%, Building 13.8%, Stylized 11.7%, Logic 11.4%
- #46 Rocket Science
72% matchVery Positive81% of 171 reviews2020
Dev: unbeGames
Windows
Take part in a space program. Design spacecrafts and send them off to explore the vast expanses of space. Experience the real scale of the Solar system and the size of its celestial bodies.
Why similar: Science 22.4%, Space Sim 20.6%, Building 12.3%, Sandbox 11.6%, Physics 10.1%
- #47 Military Logistics Simulator
71% matchVery Negative18% of 112 reviews2025
Dev: Nano GamesPub: Aerosoft GmbH
Windows
Drive real military vehicles, deliver critical cargo, and master first-person logistics solo or with friends. Help survivors, provide infrastructure, and rebuild a war-torn region!
Why similar: Open World 23.4%, Physics 21.1%, Multiplayer 17.9%, Simulation 15%, 3D 11.8%
- #48 Logic World
69% matchVery Positive94% of 353 reviews2021
Dev: Mouse Hat Games
Windows · Mac · Linux
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 24.2%, Building 14.8%, Logic 13.3%, Sandbox 12.3%, Stylized 9.9%
- #49 Outworld Station
67% matchVery Positive86% of 714 reviews2026
Dev: Trickjump Games Ltd
Windows
Median: 3.9 hrsMean: 10.3 hrs≥1hr: 70%
Take the helm as a new Station Commander and exploit an alien star system in this stunning space-station factory automation game. Amass resources and construct starships using increasingly advanced manufacturing and expand your station in a hostile universe.
Why similar: Co-op 41.1%, Sandbox 25%, 3D 11.6%, Simulation 11.2%, Multiplayer 9.4%
- #50 Space Company Simulator
72% matchMostly Negative28% of 179 reviews2019
Dev: IntermarumPub: All in! Games
Windows
Take the position of a CEO of a space transport company and become a new major player in the industry. Space Company Simulator is a realistic management sim game that will challenge your planning skills as you strive to launch the first manned mission to Mars.
Why similar: Mars 50.7% ★, Space Sim 20.3%, Building 13.3%, Sandbox 7.5%, Simulation 6.7%
- #51 World of Contraptions
69% matchVery Positive87% of 97 reviews2022
Dev: JCP Games Studio
Windows
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: Science 20.3%, Robots 16.3%, Building 12.3%, Sandbox 10.9%, Logic 10%
- #52 Archean
67% matchVery Positive88% of 238 reviews2024
Dev: batcholi
Windows · Linux
Gather resources, craft components, build vehicles, and code their logic in a physics-driven engineering sandbox and full scale space sim.
Why similar: Science 21.9%, Space Sim 20.1%, Building 12.1%, Sandbox 11.4%, Open World 9%
- #53 Astro Colony
67% matchVery Positive82% of 2,526 reviews2022
Dev: Terad Games
Windows
Median: 4.5 hrsMean: 16.3 hrs≥1hr: 78%
Explore endless Universe and create the most efficient constellation of colonies. Build conveyor systems to automate production. Take care of Astronauts and their needs! Establish new colonies as part of intergalactic simulation.
Why similar: Space Sim 27.7%, Building 19.6%, Sandbox 15.5%, Open World 12.4%, Multiplayer 11.2%
- #54 Technicity
68% matchMostly Positive78% of 232 reviews2022
Dev: Osaris GamesPub: RockGame S.A.
Windows
Median: 1.4 hrsMean: 4.1 hrs≥1hr: 52%
A first-person city-building game with powerful tools that allow you to build faster and bigger. Design your own construction blocks and furniture in factories, terraform the open world, build roads and use vehicles to travel to different cities that you or your friends create in solo or coop mode.
Why similar: Transportation 28.5% ★, Co-op 15%, Building 12.5%, Sandbox 11.6%, Open World 9.4%
- #55 JCB Pioneer: Mars
71% matchMixed42% of 153 reviews2017
Dev: AtomicomPub: GamesCo
Windows
JCB Pioneer: Mars drops you onto the surface of The Red Planet. Your mission: To survive and prepare Mars for future human colonization.
Why similar: Mars 55.1% ★, Building 17.2%, Open World 11%, Simulation 10.4%, Exploration 6.4%
- #56 Parcel Simulator
64% matchVery Positive94% of 2,484 reviews2025
Dev: Dansan Digital
Windows
Median: 12.7 hrsMean: 17.5 hrs≥1hr: 88%
Inspect and process parcels and packages in this parcel inspection simulator! Receive and sort deliveries, examine labels for mistakes, and automate to maximise warehouse efficiency. Upgrade and expand your warehouse to build your parcel empire!
Why similar: Building 37.3%, Simulation 24.7%, 3D 21.8%, Puzzle 16.3%
- #57 Lightyear Frontier
65% matchVery Positive84% of 4,457 reviews2024
Dev: FRAME BREAK
Windows
Median: 5.8 hrsMean: 11.5 hrs≥1hr: 86%
In Lightyear Frontier you use your powerful trusty mech to farm on a large beautiful alien planet. Settle your homestead, farm and deliver produce to remote colonies, gather and manage resources, build, craft, explore, expand, improve your mech, meet neighbors, and make a place to call your own.
Why similar: Co-op 37.5%, Sandbox 25.1%, Open World 20.7%, Exploration 13.2%, Singleplayer 3.5%
- #58 Alchemy Factory
63% matchVery Positive90% of 2,293 reviews2025
Dev: D5 CopperheadPub: Gamirror Games
Windows
Median: 8.0 hrsMean: 23.1 hrs≥1hr: 87%
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: Building 25%, Sandbox 23.2%, Co-op 17.3%, Multiplayer 11.8%, 3D 9.4%