- #1 Trailmakers
97% matchVery Positive92% of 34,107 reviews2019
Dev: Flashbulb
Windows
Median: 3.9 hrsMean: 15.4 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 24.5%, Sandbox 22.6%, Physics 20.4%, Open World 18.2%, Exploration 10%
Why You'll Like It: It offers a robust sandbox for building physics-based vehicles that you can drive across diverse terrains in both solo and co-op modes.
- #2 Scrap Mechanic
96% matchVery Positive92% of 117,049 reviews2016
Dev: Axolot Games
Windows
Median: 11.1 hrsMean: 57.3 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 23%, Sandbox 18.3%, Co-op 17.1%, Physics 15.4%, Open World 14.6%
Why You'll Like It: This game features an advanced physics engine that allows for the creation of complex, interactive machines and vehicles.
- #3 Main Assembly
96% matchVery Positive84% of 1,337 reviews2021
Dev: Bad Yolk GamesPub: Team17
Windows
Median: 1.0 hrsMean: 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 20.3% ★, Robots 14.9%, Co-op 14.8%, Building 10.9%, Sandbox 10.2%
Why You'll Like It: It provides a deep level of customization for building robots and vehicles, complete with a visual programming system for complex automation.
- #4 World of Contraptions
95% 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: LEGO 22.9% ★, Science 15.6% ★, Robots 12.5%, Building 9.4%, Sandbox 8.4%
Why You'll Like It: It focuses heavily on the engineering aspect of building unique, physics-driven robots to solve complex environmental puzzles.
- #5 RoboCo
94% matchVery Positive88% of 204 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 23.9%, Building 19.2%, Sandbox 17.3%, Physics 14.8%, Funny 8.6%
Why You'll Like It: This sandbox game lets you design and build custom robots to complete various tasks, mirroring the creative engineering found in Mars First Logistics.
- #6 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 38.3% ★, Science 16.2% ★, Robots 11.8%, Building 9.4%, Sandbox 8.8%
Why You'll Like It: This title is a direct thematic match, focusing on the design and testing of rovers within a physics-based sandbox environment.
- #7 Besiege
93% matchOverwhelmingly Positive95% of 52,104 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: LEGO 45.4% ★, Building 13.6%, Sandbox 12.9%, Physics 11.4%, 3D 6%
Why You'll Like It: A quintessential physics-based building game where you construct custom machines to complete specific objectives and navigate challenging environments.
- #8 RoadCraft
92% matchMostly Positive75% of 15,086 reviews2025
Dev: Saber InteractivePub: Focus Entertainment
Windows
Median: 12.5 hrsMean: 32.1 hrs≥1hr: 93%
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 31% ★, Building 18.6%, Co-op 18.3%, Physics 14%, Simulation 7.1%
Why You'll Like It: It emphasizes the physics of heavy-duty transportation and vehicle building, requiring careful planning to navigate difficult terrain.
- #9 Kerbal Space Program
91% matchOverwhelmingly Positive95% of 133,317 reviews2015
Dev: SquadPub: Private Division
Windows · Mac · Linux
Median: 5.3 hrsMean: 65.2 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% ★, Sandbox 14.2%, Physics 11.7%, Building 10.2%
Why You'll Like It: The gold standard for space-based engineering, requiring players to build and pilot vehicles that obey realistic physics laws.
- #10 Juno: New Origins
91% matchVery Positive89% of 3,369 reviews2023
Dev: Jundroo, LLC
Windows · Mac
Median: 1.0 hrsMean: 12.8 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 26.2% ★, Space Sim 24.9% ★, Building 14.3%, Sandbox 10.6%, Physics 9.6%
Why You'll Like It: A highly detailed space-sim that allows for intricate vehicle and rocket construction with realistic physics and orbital mechanics.
- #11 Occupy Mars: The Game
90% matchMostly Positive70% of 3,012 reviews2026
Dev: ▲ Pyramid Games
Windows
Median: 4.2 hrsMean: 31.4 hrs≥1hr: 77%
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 12.9%, Sandbox 10.3%, Building 10.1%, Open World 8.7%
Why You'll Like It: It leans into the harsh survival and base-building aspects of a Martian colony, providing a more grounded context for your engineering efforts.
- #12 Brick Rigs
89% matchVery Positive95% of 56,117 reviews2023
Dev: Fluppisoft GmbH
Windows · Linux
Median: 10.2 hrsMean: 77.6 hrs≥1hr: 88%
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: LEGO 44.7% ★, Sandbox 14.2%, Building 13.4%, Open World 9.8%, Physics 9.7%
Why You'll Like It: It provides a fun, physics-heavy sandbox where you can build and drive custom vehicles with a focus on destruction and interaction.
- #13 Plan B: Terraform
89% matchVery Positive91% of 3,463 reviews2025
Dev: Gaddy Games
Windows
Median: 4.3 hrsMean: 10.9 hrs≥1hr: 80%
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 43.1% ★, Transportation 27.9% ★, Sandbox 9.8%, Building 7.8%, Procedural Generation 7.3%
Why You'll Like It: This game focuses on the logistics and automation required to terraform a planet, appealing to those who enjoy the transport-oriented goals of the seed game.
- #14 Space Engineers
88% matchVery Positive89% of 133,238 reviews2019
Dev: Keen Software House
Windows
Median: 9.0 hrsMean: 95.7 hrs≥1hr: 87%
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 23.8% ★, Co-op 18%, Building 13.2%, Sandbox 12.2%, Physics 10.9%
Why You'll Like It: This game offers a vast sandbox for building space-faring vessels and rovers with a focus on structural integrity and functional engineering.
- #15 Stormworks: Build and Rescue
87% matchVery Positive90% of 57,601 reviews2020
Dev: Geometa
Windows · Mac
Median: 17.4 hrsMean: 111.9 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 9.2%
Why You'll Like It: It features an incredibly deep vehicle construction system where you must account for engine power, buoyancy, and complex physics to complete rescue missions.
- #16 Aviassembly
86% matchOverwhelmingly Positive97% of 8,303 reviews2025
Dev: Jelle Booij
Windows
Median: 6.1 hrsMean: 6.9 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% ★, Science 14.6% ★, Building 14.6%, Sandbox 11.4%, Physics 10.6%
Why You'll Like It: It focuses on the intersection of flight, physics, and building, allowing you to iterate on designs to overcome environmental challenges.
- #17 Star Trucker
86% matchMostly Positive79% of 4,997 reviews2024
Dev: Monster and MonsterPub: Raw Fury
Windows
Median: 3.3 hrsMean: 10.4 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 24.7% ★, Physics 10.8%, Open World 10%, Sandbox 9.4%
Why You'll Like It: It captures the specific feeling of long-haul transportation, but shifts the setting to a futuristic space environment.
- #18 Poly Bridge 2
84% matchOverwhelmingly Positive95% of 8,114 reviews2020
Dev: Dry Cactus
Windows · Mac · Linux
Median: 2.1 hrsMean: 14.6 hrs≥1hr: 67%
The acclaimed bridge-building indie-hit is back! More levels, more features, more physics fun!
Why similar: Building 28.8%, Physics 19%, Sandbox 17.6%, Puzzle 10.5%, Simulation 8.3%
Why You'll Like It: While focused on bridges, it shares the core appeal of solving transportation logistics through careful physics-based construction.
- #19 Nimbatus - The Space Drone Constructor
84% matchMostly Positive79% of 2,144 reviews2020
Dev: Stray Fawn StudioPub: Stray Fawn Publishing
Windows · Mac · Linux
Median: 3.0 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 24.2% ★, Robots 17.7%, Logic 10.8%, Building 9.9%, Sandbox 9.2%
Why You'll Like It: You build custom drones from scratch to explore procedurally generated space environments, emphasizing both creativity and functionality.
- #20 Take On Mars
85% matchMixed55% of 2,023 reviews2017
Dev: Bohemia Interactive
Windows
Median: 3.0 hrsMean: 10.5 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 48% ★, Science 12.6% ★, Space Sim 11% ★, Building 6.4%, Sandbox 5.3%
Why You'll Like It: This simulation provides a realistic look at Martian exploration, focusing on the technical challenges of operating rovers on another planet.
- #21 TerraTech
82% matchVery Positive91% of 24,455 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 25.4%, Building 25%, Sandbox 20.4%, Open World 15.8%, Physics 6.9%
Why You'll Like It: You build modular vehicles from scavenged parts to explore and survive, offering a similar sense of creative progression.
- #22 Rover Mechanic Simulator
83% matchMostly Positive76% of 654 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 53.7% ★, Science 19.3% ★, Space Sim 17.6% ★, Simulation 4.8%, Puzzle 3.3%
Why You'll Like It: It offers a more granular look at the maintenance and repair of space rovers, perfect for players who enjoy the technical side of the seed game.
- #23 Spaceflight Simulator
81% matchOverwhelmingly Positive96% of 7,486 reviews2022
Dev: Team Curiosity ✦
Windows · Mac
Median: 4.6 hrsMean: 14.2 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 30.3% ★, Science 23.1% ★, Sandbox 16.1%, Building 6.9%, Exploration 6%
Why You'll Like It: A minimalist but deep simulation that focuses on the core mechanics of rocket building and orbital physics.
- #24 Per Aspera
82% matchMostly Positive76% of 5,662 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 45.9% ★, Science 17.2% ★, Robots 14.2%, Building 10.3%, Sandbox 8.8%
Why You'll Like It: While more strategy-focused, it captures the grand scale of Martian colonization and the logistical planning required to succeed on the Red Planet.
- #25 FOUNDRY
80% matchVery Positive81% of 3,508 reviews2024
Dev: Channel 3 EntertainmentPub: Paradox Interactive
Windows
Median: 7.2 hrsMean: 45.5 hrs≥1hr: 86%
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 19.1%, Robots 18.9%, Building 13.7%, Procedural Generation 12.7%, Sandbox 12.7%
Why You'll Like It: A first-person factory-building game that requires complex logistics and transportation networks to succeed in an open-world setting.
- #26 Hydroneer
81% matchVery Positive86% of 27,097 reviews2020
Dev: Foulball Hangover
Windows
Median: 7.1 hrsMean: 22.3 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 28.9%, Sandbox 19.5%, Building 18.6%, Open World 14.9%, Funny 10.2%
Why You'll Like It: This game features a unique physics-based building and logistics system centered around mining and resource transport.
- #27 Instruments of Destruction
78% matchVery Positive91% of 1,507 reviews2024
Dev: RadiangamesPub: Secret Mode
Windows
Median: 54 minMean: 4.6 hrs≥1hr: 49%
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 37.3%, Stylized 23.7%, 3D 19.9%, Simulation 15.3%, Singleplayer 3.9%
Why You'll Like It: It features a highly advanced physics engine that makes the act of building and operating heavy machinery feel tactile and rewarding.
- #28 Space Mechanic Simulator
79% matchMixed63% of 117 reviews2023
Dev: Atomic JellyPub: Wildlands Interactive
Windows
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 29.4% ★, Space Sim 24.2% ★, Science 21.7% ★, Building 10.3%, Physics 7.9%
Why You'll Like It: This game focuses on the intricate repair and maintenance of space equipment, providing a satisfying, hands-on engineering experience.
- #29 ΔV: Rings of Saturn
77% matchVery Positive93% of 3,305 reviews2023
Dev: Kodera Software
Windows · Mac · Linux
Median: 8.3 hrsMean: 11.6 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 23.7% ★, Science 23% ★, Physics 12.1%, Procedural Generation 11.3%, Open World 9.1%
- #30 Mars Horizon
77% matchVery Positive84% of 3,058 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 40.6% ★, Science 14.9% ★, Space Sim 14.2% ★, Building 7.3%, Stylized 6.4%
- #31 Rocket Science
78% matchVery Positive80% of 160 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%
Why You'll Like It: It emphasizes the trial-and-error nature of physics-based building, challenging players to construct vehicles that can survive their environment.
- #32 Space Engineers 2
75% matchMostly Positive76% of 4,293 reviews2025
Dev: Keen Software House
Windows
Median: 1.3 hrsMean: 7.1 hrs≥1hr: 58%
Space Engineers 2 is a sandbox about engineering and colonization where you build ships, stations, and planetary bases in a fully destructible world. Begin the story of Miro and Ivan Sokol, expand humanity’s foothold in the Almagest system, and fight to survive.
Why similar: Science 22.4% ★, Space Sim 18.2% ★, Building 14.2%, Sandbox 13.5%, Physics 10.9%
- #33 Logic World
76% matchVery Positive94% of 349 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 24.4% ★, Building 13.6%, Sandbox 11.8%, Logic 9.4%, Co-op 9.3%
- #34 JCB Pioneer: Mars
79% 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% ★, Building 17.2%, Open World 11%, Simulation 10.5%, Exploration 6.4%
Why You'll Like It: It combines heavy-duty vehicle operation with Martian exploration, emphasizing the utility of specialized machinery.
- #35 Blossom: The Seed of Life
72% matchVery Positive90% of 654 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 45.1% ★, Space Sim 14.6% ★, Robots 11.8%, Building 7.8%, Sandbox 7.5%
- #36 Stationeers
75% matchVery Positive88% of 8,897 reviews2017
Dev: RocketWerkz
Windows
Median: 9.8 hrsMean: 81.9 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 27.3% ★, Co-op 18.5%, Building 14.6%, Logic 13.7%, Sandbox 13.4%
- #37 Space Mechanic Simulator: Prologue
74% 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 50.5% ★, Space Sim 19.5% ★, Science 10.4% ★, Logic 7.3%, Exploration 4.4%
- #38 Plasma
72% matchVery Positive90% of 1,062 reviews2023
Dev: Dry CactusPub: Dry Licorice
Windows
Median: 30 minMean: 5.3 hrs≥1hr: 38%
Plasma is a pure engineering sandbox. Use advanced visual programming and robotics tools to create anything you can imagine.
Why similar: Sandbox 16.9%, Robots 16.4%, Building 14%, Stylized 12.1%, Logic 11.5%
- #39 Technicity
73% matchMostly Positive78% of 230 reviews2022
Dev: Osaris GamesPub: RockGame S.A.
Windows
Median: 1.5 hrsMean: 4.1 hrs≥1hr: 54%
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 30.3% ★, Co-op 16%, Building 13.2%, Sandbox 12.3%, Open World 9.9%
- #40 StarbaseSim
71% 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 37.2% ★, Sandbox 19.3%, Logic 12%, Simulation 8.9%, 3D 8.7%
- #41 Farlanders
71% matchVery Positive92% of 569 reviews2023
Dev: Andriy BychkovskyiPub: Crytivo
Windows · Mac · Linux
Median: 2.2 hrsMean: 7.9 hrs≥1hr: 62%
Terraform, strategize, and construct a Martian colony in this retro-inspired turn-based city builder. Create a comfortable living for your citizens, research alien artifacts, and uncover the secrets of the Red Planet.
Why similar: Mars 68.6% ★, Building 13.6%, Procedural Generation 12%, Simulation 4.5%, Singleplayer 1.3%
- #42 Infinite Rails
70% matchVery Positive91% of 74 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 20.9%, Sandbox 15.2%, Procedural Generation 12.7%, Building 12.5%, Physics 10.5%
- #43 Kerbal Space Program 2
73% matchMostly Negative27% of 31,135 reviews2023
Dev: Intercept GamesPub: Private Division
Windows
Median: 7.7 hrsMean: 19.1 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 23.7% ★, Space Sim 17.9% ★, Building 12.5%, Sandbox 11.7%, Physics 10.2%
- #44 Military Logistics Simulator
73% 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 28.3%, Physics 25.8%, Simulation 18.3%, 3D 14.4%, Building 11%
- #45 Parcel Simulator
68% matchVery Positive94% of 2,396 reviews2025
Dev: Dansan Digital
Windows
Median: 12.4 hrsMean: 17.3 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 37.3%, Simulation 24.7%, 3D 21.8%, Puzzle 16.2%
- #46 Space Company Simulator
74% matchMostly Negative28% of 178 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 50.6% ★, Space Sim 20.3% ★, Building 13.3%, Sandbox 7.5%, Simulation 6.7%
- #47 ABRISS - build to destroy
69% matchVery Positive83% of 545 reviews2023
Dev: RandwerkPub: astragon Entertainment
Windows
Median: 48 minMean: 9.1 hrs≥1hr: 43%
ABRISS is an atmospheric physics-destruction building game.Build structures from parts to let them crash into your targets. Unlock new parts, destroy more, witness entropy at its worst in digital-brutalist cityscapes. Build to destroy.
Why similar: LEGO 35% ★, Logic 11.1%, Building 10.8%, Sandbox 10%, Physics 9.3%
- #48 Sunshine Heavy Industries
69% matchVery Positive99% of 416 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 29.4%, Sandbox 27.8%, Funny 16.6%, Puzzle 15.3%, Simulation 8.6%
- #49 Astro Colony
69% matchVery Positive82% of 2,509 reviews2022
Dev: Terad Games
Windows
Median: 4.7 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 31.2% ★, Building 22.1%, Sandbox 17.5%, Open World 14%, Simulation 8.9%
- #50 Nimbatus - Drone Creator
70% matchVery Positive90% of 270 reviews2020
Dev: Stray Fawn Studio
Windows · Mac · Linux
Median: 42 minMean: 5.3 hrs≥1hr: 40%
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 20.8% ★, Space Sim 20.3% ★, Sandbox 12.3%, Simulation 11.8%, Physics 9.7%
- #51 Astronimo
68% matchVery Positive85% of 84 reviews2023
Dev: Coatsink
Windows
Crash-landed and ill-prepared, you and your friends must build, break, and rebuild to escape. A chaotic co-op puzzler about creativity, comedy, and questionable engineering.
Why similar: Robots 26.4%, Building 19.2%, Sandbox 18%, Physics 14.9%, Simulation 13.2%
- #52 Rebots
67% matchMostly Positive78% of 54 reviews2024
Dev: FlatPoniesPub: Astra Logical
Windows
Rebots is a first-person automation game with an expansive universe to explore. Using intelligent(ish) rebots, you can gather resources, terraform planets, and scan all of the things. Traverse the galaxy in the name of space capitalism!
Why similar: Space Sim 23.6% ★, Robots 18%, Sandbox 12.6%, Stylized 12.5%, Procedural Generation 12.4%
- #53 PULSAR: Lost Colony
67% matchVery Positive90% of 5,694 reviews2021
Dev: Leafy Games
Windows · Mac · Linux
Median: 7.5 hrsMean: 16.8 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 31.7% ★, Co-op 23.2%, Robots 19.6%, Open World 12.8%, Exploration 6.7%
- #54 Railroads Online
66% matchMostly Positive75% of 5,879 reviews2024
Dev: Stefan KelnbergerPub: astragon Entertainment
Windows
Median: 11.6 hrsMean: 67.4 hrs≥1hr: 86%
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 23%, Sandbox 20.6%, Physics 19%, Open World 18%, Exploration 8.7%
- #55 Archean
66% matchVery Positive88% of 236 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 23% ★, Space Sim 21.2% ★, Building 12.7%, Sandbox 12%, Open World 9.5%
- #56 Autocraft
71% matchMixed56% of 297 reviews2017
Dev: Alientrap
Windows · Mac
Median: 54 minMean: 3.2 hrs≥1hr: 44%
Create, Collect, and Crash in Autocraft, a physics destruction sandbox. Create your own cars, rockets, tanks, planes, boats, and more.
Why similar: Sandbox 27%, Building 23.7%, Physics 18.3%, Space Sim 15.1% ★, Simulation 10.4%
- #57 Expeditions: A MudRunner Game
67% matchMixed57% of 4,625 reviews2024
Dev: Saber InteractivePub: Focus Entertainment
Windows
Median: 4.0 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 27.3% ★, Science 20.2% ★, Co-op 15.5%, Building 10.6%, Physics 8.5%
- #58 LEGO® Worlds
68% matchMostly Positive78% of 15,565 reviews2017
Dev: TT GamesPub: Warner Bros. Interactive Entertainment
Windows
Median: 2.6 hrsMean: 13.5 hrs≥1hr: 71%
Experience a galaxy of Worlds made entirely from LEGO bricks. EXPLORE gigantic landscapes, DISCOVER countless surprises, and CREATE anything you can imagine by building with LEGO bricks.
Why similar: LEGO 55.5% ★, Building 11.2%, Sandbox 10.3%, Open World 9%, Co-op 5.7%
- #59 Mars or Die!
70% matchMixed53% of 74 reviews2018
Dev: 34BigThings srl
Windows
Median: 12 minMean: 11.7 hrs≥1hr: 36%
Control two characters simultaneously! Survive, gather, collect upgrades, fight all sizes of one-eyed Martians, build defensible outposts and conquer Mars, in this glorious mix between roguelite and tower defense.
Why similar: Mars 54% ★, Space Sim 17.1% ★, Building 9.7%, Sandbox 8.7%, Funny 6%