- #1 Trailmakers
97% matchVery Positive92% of 38,735 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 20.2%, Physics 17.9%, Open World 16.5%, 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 Scrap Mechanic
96% matchVery Positive92% of 122,134 reviews2026
Dev: Axolot Games
Windows
Median: 11.4 hrsMean: 64.5 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 21.1%, Sandbox 16.6%, Co-op 15.5%, Physics 13.8%, Open World 13.6%
Why You'll Like It: Features deep creative building mechanics and physics-based interaction that mirror the rover-construction gameplay of the seed.
- #3 Main Assembly
96% matchVery Positive83% of 1,351 reviews2021
Dev: Bad Yolk GamesPub: Team17
Windows
Median: 54 minMean: 7.0 hrs≥1hr: 49%
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 17.9%, Co-op 16.7%, Robots 13.6%, Building 10.2%, 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.
- #4 RoboCo
95% matchVery Positive88% of 212 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 24.2%, Building 19.3%, Sandbox 17.2%, Physics 14.6%, 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 3,531 reviews2023
Dev: Jundroo, LLC
Windows · Mac
Median: 1.1 hrsMean: 13.6 hrs≥1hr: 51%
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 25.4%, Space Sim 24%, Building 13.8%, Sandbox 10.2%, Physics 9.1%
Why You'll Like It: Allows for highly detailed vehicle construction and space-flight simulation with realistic physics.
- #6 Aviassembly
93% matchOverwhelmingly Positive97% of 9,371 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 27.1% ★, Building 14.8%, Science 14.3%, Sandbox 11.4%, Physics 10.7%
Why You'll Like It: Combines physics-based construction with flight and transportation mechanics in a sandbox environment.
- #7 Rover Builder
94% 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 38.6% ★, Science 16.2%, Robots 11.9%, Building 9.4%, Sandbox 8.7%
Why You'll Like It: Directly focuses on the challenge of building rovers to navigate and operate on alien terrain.
- #8 Stormworks: Build and Rescue
92% matchVery Positive91% of 59,745 reviews2020
Dev: Geometa
Windows · Mac
Median: 17.4 hrsMean: 113.5 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 27.1%, Building 25.3%, Open World 19.5%, Physics 18.9%, Exploration 9.1%
Why You'll Like It: Focuses on complex vehicle construction and physics-based missions that require precise engineering to succeed.
- #9 Kerbal Space Program
91% matchOverwhelmingly Positive96% of 146,254 reviews2015
Dev: SquadPub: Private Division
Windows · Mac · Linux
Median: 5.4 hrsMean: 66.1 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 24.5%, Space Sim 22.1%, Sandbox 14.1%, Physics 11.5%, Building 10.3%
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 53,170 reviews2020
Dev: Spiderling Studios
Windows · Mac · Linux
Median: 2.4 hrsMean: 18.7 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%, Physics 18.6%, 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 134,313 reviews2019
Dev: Keen Software House
Windows
Median: 9.0 hrsMean: 96.4 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 22.4%, Co-op 16.8%, Building 12.5%, Sandbox 11.4%, Physics 10.1%
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 16,200 reviews2025
Dev: Saber InteractivePub: Focus Entertainment
Windows
Median: 12.8 hrsMean: 34.6 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 28.6% ★, Building 17.7%, Co-op 17%, Physics 12.9%, Multiplayer 6.9%
Why You'll Like It: Focuses on physics-based driving and logistics management in challenging environments.
- #13 Star Trucker
89% matchMostly Positive78% of 5,287 reviews2024
Dev: Monster and MonsterPub: Raw Fury
Windows
Median: 3.4 hrsMean: 11.7 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 34.4% ★, Space Sim 24.8%, Physics 10.7%, Open World 10.2%, 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 2,124 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 23.5%, Physics 17.5%, Puzzle 13.8%, Simulation 13.8%, Stylized 12.8%
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 24,920 reviews2018
Dev: Payload StudiosPub: Mythwright
Windows · Mac · Linux
Median: 8.0 hrsMean: 32.5 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 23.5%, Building 22.8%, Sandbox 18.5%, Open World 14.6%, 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 28,389 reviews2020
Dev: Foulball Hangover
Windows
Median: 6.6 hrsMean: 22.2 hrs≥1hr: 84%
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 26.1%, Sandbox 17.7%, Building 17%, Open World 13.8%, Funny 9.2%
Why You'll Like It: Features physics-based logistics and resource transport that requires clever machine building to optimize efficiency.
- #17 Occupy Mars: The Game
86% matchMixed70% of 3,132 reviews2026
Dev: ▲ Pyramid Games
Windows
Median: 4.4 hrsMean: 34.1 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 50.4% ★, Co-op 13.2%, Building 9.9%, Sandbox 9.4%, Open World 8.4%
Why You'll Like It: Provides a detailed Mars-themed survival experience with a heavy emphasis on vehicle and base management.
- #18 GearBlocks
85% matchVery Positive91% of 782 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 21.4%, Physics 20.1%, Open World 11.1%, Simulation 8.3%
Why You'll Like It: A physics-based sandbox game that emphasizes mechanical engineering and custom vehicle construction.
- #19 FOUNDRY
84% matchVery Positive81% of 3,918 reviews2024
Dev: Channel 3 EntertainmentPub: Paradox Interactive
Windows
Median: 7.7 hrsMean: 48.4 hrs≥1hr: 88%
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: Robots 17.9%, Co-op 17.7%, Building 12.9%, Sandbox 11.7%, Procedural Generation 11.6%
Why You'll Like It: A first-person factory-building game that shares the industrial, construction-heavy aesthetic and focus on logistics.
- #20 ΔV: Rings of Saturn
84% matchVery Positive93% of 3,449 reviews2023
Dev: Kodera Software
Windows · Mac · Linux
Median: 8.3 hrsMean: 11.7 hrs≥1hr: 85%
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 23.1%, Physics 12%, Procedural Generation 11.1%, Open World 9.3%
Why You'll Like It: Features physics-based space flight and cargo hauling that requires careful navigation and management.
- #21 Stationeers
82% matchVery Positive88% of 9,229 reviews2017
Dev: RocketWerkz
Windows
Median: 10.2 hrsMean: 85.3 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 25.7%, Co-op 17.2%, 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.
- #22 Space Engineers 2
81% matchMostly Positive75% of 5,449 reviews2025
Dev: Keen Software House
Windows
Median: 1.9 hrsMean: 11.1 hrs≥1hr: 64%
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 22.2%, Space Sim 18.1%, Building 14.5%, Sandbox 13.5%, Physics 10.6%
Why You'll Like It: Continues the tradition of sandbox building and physics-based survival in a space setting.
- #23 SimplePlanes
82% matchVery Positive93% of 10,898 reviews2015
Dev: Jundroo, LLC
Windows · Mac
Median: 2.5 hrsMean: 12.6 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 21%, Sandbox 19.7%, Physics 17.2%, Open World 14.3%, Funny 10.2%
Why You'll Like It: Provides a deep vehicle construction suite with realistic physics that rewards creative engineering.
- #24 Take On Mars
83% matchMixed55% of 2,032 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 46.8% ★, Science 12.2%, Space Sim 10.6%, Building 6.1%, Sandbox 5%
Why You'll Like It: A simulation-focused title that captures the technical and exploratory spirit of Martian rover operations.
- #25 Spaceflight Simulator
79% matchOverwhelmingly Positive97% of 9,683 reviews2022
Dev: Team Curiosity ✦
Windows · Mac
Median: 5.3 hrsMean: 15.2 hrs≥1hr: 83%
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 30.5%, Science 22.9%, Sandbox 16.2%, Building 7.2%, Exploration 5.9%
Why You'll Like It: A minimalist but deep physics-based construction game centered on space exploration and vehicle design.
- #26 Instruments of Destruction
79% matchVery Positive91% of 1,569 reviews2024
Dev: RadiangamesPub: Secret Mode
Windows
Median: 1.2 hrsMean: 4.6 hrs≥1hr: 51%
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 37.9%, Stylized 23%, 3D 19.9%, 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 Approximately Up
77% matchVery Positive94% of 918 reviews2026
Dev: Approximately Games
Windows
Median: 11.4 hrsMean: 23.8 hrs≥1hr: 90%
Build, crash, rebuild! Explore new planets in co-op multiplayer with your fully modular spaceship made from whatever bolts together long enough to fly. Mount giant thrusters, annoying cables, and everything in between. Complete wild missions, face the dangers of space and argue with your crew!
Why similar: Space Sim 26.2%, Co-op 12.4%, Sandbox 12.4%, Stylized 8.9%, Funny 6.9%
- #28 Nimbatus - The Space Drone Constructor
80% matchMostly Positive79% of 2,164 reviews2020
Dev: Stray Fawn StudioPub: Stray Fawn Publishing
Windows · Mac · Linux
Median: 3.1 hrsMean: 5.1 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 24.1%, Robots 17.9%, Logic 10.8%, Building 9.9%, Sandbox 9.1%
Why You'll Like It: Focuses on building custom drones with physics-based parts to explore and survive in space.
- #29 Kerbal Space Program 2
81% matchMostly Negative26% of 31,953 reviews2023
Dev: Intercept GamesPub: Private Division
Windows
Median: 7.7 hrsMean: 19.4 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 23.1%, Space Sim 17.5%, Building 12.2%, Sandbox 11.3%, Physics 9.8%
Why You'll Like It: Expands on the original with more advanced construction tools and physics-based exploration challenges.
- #30 Plan B: Terraform
76% matchVery Positive91% of 3,595 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 43.5% ★, Transportation 27.7% ★, Sandbox 9.7%, Building 7.8%, Procedural Generation 7.3%
- #31 Crossout
78% matchMostly Positive75% of 69,758 reviews2017
Dev: Targem GamesPub: Gaijin Network Ltd
Windows
Median: 4.9 hrsMean: 56.7 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%, Building 25%, Sandbox 23.4%, Multiplayer 17.6%
Why You'll Like It: Provides a deep modular vehicle building system with physics that is central to its gameplay loop.
- #32 Per Aspera
77% matchMostly Positive76% of 5,760 reviews2020
Dev: Tlön IndustriesPub: Raw Fury
Windows
Median: 5.0 hrsMean: 12.0 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 44% ★, Science 16.3%, Robots 13.6%, Building 9.7%, Sandbox 8.2%
- #33 Blossom: The Seed of Life
73% matchVery Positive88% of 1,019 reviews2026
Dev: Pebbledust GamesPub: Pretty Soon
Windows
Median: 6.5 hrsMean: 11.9 hrs≥1hr: 81%
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 45.3% ★, Space Sim 14.5%, Robots 11.9%, Building 7.8%, Sandbox 7.4%
- #34 Mars Horizon
76% matchVery Positive84% of 3,091 reviews2020
Dev: Auroch Digital
Windows · Mac
Median: 5.3 hrsMean: 9.2 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 41% ★, Science 14.9%, Space Sim 14.2%, Building 7.3%, Stylized 6.1%
- #35 Logic World
74% matchVery Positive94% of 367 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 21%, Building 13.2%, Logic 11.9%, Co-op 11.6%, Sandbox 10.9%
- #36 Rover Mechanic Simulator
75% matchMostly Positive76% of 667 reviews2020
Dev: ▲ Pyramid GamesPub: Pyramid Games S.A.
Windows
Median: 4.4 hrsMean: 5.8 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 49.4% ★, Science 18.3%, Space Sim 16.8%, Logic 6.8%, Simulation 4.1%
- #37 Brickadia
73% matchVery Positive81% of 1,421 reviews2025
Dev: Brickadia, LLC
Windows
Median: 3.4 hrsMean: 33.7 hrs≥1hr: 79%
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 19%, Building 18.7%, Physics 16.7%, Logic 13.9%, Co-op 13.9%
- #38 Modulus: Factory Automation
71% matchVery Positive91% of 846 reviews2026
Dev: Happy VolcanoPub: Kwalee
Windows
Median: 3.9 hrsMean: 14.7 hrs≥1hr: 74%
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 27.1%, Sandbox 22.7%, Logic 16.3%, Open World 13.1%, Simulation 9.9%
- #39 Space Mechanic Simulator
74% matchMixed64% of 121 reviews2023
Dev: Atomic JellyPub: Wildlands Interactive
Windows
Median: 3.4 hrsMean: 5.2 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 29.7% ★, Space Sim 24.1%, Science 21.8%, Building 10.3%, Physics 7.8%
- #40 Solar Expanse - Space Exploration Manager
69% matchVery Positive88% of 1,295 reviews2026
Dev: SpaceOpsPub: Games Operators
Windows
Median: 4.8 hrsMean: 14.7 hrs≥1hr: 77%
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 27.6%, Space Sim 22.7%, Sandbox 13.5%, Physics 11.6%, Building 7.7%
- #41 ASTRONEER
70% matchVery Positive92% of 139,015 reviews2019
Dev: System Era Softworks
Windows
Median: 11.5 hrsMean: 44.6 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 24.7%, Open World 19%, Sandbox 16.1%, Building 14.7%, Multiplayer 12.6%
- #42 Astro Colony
68% matchVery Positive81% of 2,699 reviews2026
Dev: Terad Games
Windows
Median: 4.4 hrsMean: 16.2 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 28.4%, Building 19.4%, Sandbox 15.3%, Open World 12.5%, Multiplayer 11.1%
- #43 Expeditions: A MudRunner Game
71% matchMixed57% of 4,775 reviews2024
Dev: Saber InteractivePub: Focus Entertainment
Windows
Median: 3.9 hrsMean: 15.0 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 25.3% ★, Science 19%, Co-op 14.3%, Building 9.9%, Physics 7.8%
- #44 Rocket Science
72% matchVery Positive81% of 176 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 22.6%, Space Sim 20.6%, Building 12.4%, Sandbox 11.5%, Physics 10%
- #45 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 50.8% ★, Space Sim 19.4%, Science 10.4%, Logic 7.3%, Exploration 4.3%
- #46 StarbaseSim
70% matchVery Positive95% of 61 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 18.7%, Logic 11.7%, Simulation 8.5%, 3D 8.4%
- #47 Infinite Rails
69% matchVery Positive89% of 109 reviews2025
Dev: Benjamin Voráč
Windows · Mac
A railway-building adventure in an endless, procedurally generated world. Lay tracks, transport passengers and goods, mine resources, and buy unique locomotives. Play solo or with friends and create your ultimate railway network!
Why similar: Co-op 19.3%, Sandbox 14.3%, Building 11.7%, Procedural Generation 11.7%, Open World 10%
- #48 Military Logistics Simulator
72% matchVery Negative17% of 115 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 23.8%, Physics 21%, Multiplayer 17.9%, Simulation 14.8%, 3D 11.8%
- #49 Outworld Station
68% matchVery Positive85% of 841 reviews2026
Dev: Trickjump Games Ltd
Windows
Median: 3.6 hrsMean: 10.6 hrs≥1hr: 68%
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 11.1%, Multiplayer 9.4%
- #50 Space Company Simulator
73% 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 51% ★, Space Sim 20.2%, Building 13.3%, Sandbox 7.4%, Simulation 6.6%
- #51 FixForce
67% matchVery Positive92% of 53 reviews2026
Dev: Surgent Studios
Windows
Leap, climb, and launch your friends in this chaotic co-op extraction platformer for up to 6 players! Use your drill-wrench to build your way across a vibrant post-apocalyptic world, find replacement parts, and fix broken machines. And if you lose your head, don’t worry: it’s all part of the job.
Why similar: Co-op 26.8%, Physics 15.5%, Multiplayer 10.9%, Building 10.9%, Sandbox 10.4%
- #52 PULSAR: Lost Colony
67% matchVery Positive90% of 5,732 reviews2021
Dev: Leafy Games
Windows · Mac · Linux
Median: 7.3 hrsMean: 16.7 hrs≥1hr: 87%
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 21.3%, Robots 18.3%, Open World 12.2%, Multiplayer 7.1%
- #53 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 20.4%, Robots 16.5%, Building 12.3%, Sandbox 10.8%, Logic 10%
- #54 Sunshine Heavy Industries
67% matchVery Positive99% of 432 reviews2021
Dev: Rocket Rat Games
Windows
Welcome to Sunshine Heavy Industries! As the new spaceship engineer, solve increasingly tricky design puzzles with your own personal style. Manage customer demands, juggle budget and ship performance, and survive the questionable decision making skills of your business partner.
Why similar: Building 29.5%, Sandbox 27.7%, Funny 16.7%, Puzzle 15.6%, Simulation 8.4%
- #55 Heavenly Bodies
66% matchOverwhelmingly Positive95% of 4,499 reviews2021
Dev: 2pt Interactive
Windows · Mac
Median: 2.5 hrsMean: 5.4 hrs≥1hr: 72%
Wrangle the hands and arms of a 1970s space cosmonaut and push, pull and twist your way through an increasingly precarious range of physically simulated stellar scenarios, where without gravity, nothing is still, nothing is secure, and nothing is simple.
Why similar: Co-op 27.7%, Physics 20.4%, Stylized 18.2%, Puzzle 10.3%, Funny 8.4%
- #56 Parcel Simulator
64% matchVery Positive93% of 2,797 reviews2025
Dev: Dansan Digital
Windows
Median: 12.9 hrsMean: 19.6 hrs≥1hr: 87%
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 37.7%, Simulation 24.4%, 3D 21.6%, Puzzle 16.3%
- #57 Railroads Online
66% matchMostly Positive75% of 6,018 reviews2024
Dev: Stefan KelnbergerPub: astragon Entertainment
Windows
Median: 10.0 hrsMean: 64.8 hrs≥1hr: 85%
Build your dream railroad across a huge open world! You can build tracks and stations, drive detailed locomotives, and transport goods to earn money and experience. Play exciting Online Multiplayer sessions with your friends or create your very own sandbox!
Why similar: Building 20.6%, Sandbox 18.2%, Physics 16.7%, Open World 16.3%, Multiplayer 11.1%
- #58 Truck & Logistics Simulator
67% matchMostly Positive71% of 2,465 reviews2023
Dev: Simula GamesPub: Aerosoft GmbH
Windows
Median: 3.0 hrsMean: 33.5 hrs≥1hr: 76%
Load, drive, and deliver through a huge open world with up to 24 players in cross-platform multiplayer. Join your friends in exciting heavy transport convoys. Jump into the driver's seat of more than 30 unique vehicles and carry out complex loading tasks to deliver a variety of cargo.
Why similar: Co-op 24.4%, Open World 16.5%, Sandbox 16%, Physics 13.8%, Multiplayer 11%