- #1 EarthX
97% matchVery Positive88% of 912 reviews2023
Dev: DenisPub: Mesote Games
Windows · Mac · Linux
Median: 6.3 hrsMean: 14.5 hrs≥1hr: 93%
EarthX is a rocket company management game. Go from launching small rockets on Earth to eventually building a colony on Mars. Create your own Internet constellation, develop new technologies, supply the International Space Station and terraform Mars!
Why similar: Space Sim 22.9%, Education 16.2%, Space 15.6%, Management 13.7%, Building 11.3%
Why You'll Like It: This game focuses on the modern management of a private space company, mirroring the agency-building and launch-scheduling mechanics of the seed game.
- #2 Kerbal Space Program
96% 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 22.8%, Space Sim 21.1%, Space 20.3%, Education 10.2%, Building 8.5%
Why You'll Like It: It offers the gold standard for realistic rocket design and orbital physics, which serves as the technical foundation for the missions in Mars Horizon.
- #3 Buzz Aldrin's Space Program Manager
96% matchMostly Positive77% of 497 reviews2014
Dev: Polar MotionPub: Slitherine Ltd.
Windows
Median: 5.0 hrsMean: 9.4 hrs≥1hr: 94%
Space Program Manager (SPM) is the ultimate game of space exploration. It is the mid 1950s and the race for dominance between the US and the Soviet Union is about to move into a new dimension: space.
Why similar: Space 30%, Management 18.6%, Strategy 14.8%, Simulation 12.6%, Historical 12.3%
Why You'll Like It: This is the most direct thematic peer to Mars Horizon, focusing on the historical management of a space agency during the space race.
- #4 Terraformers
95% matchVery Positive88% of 3,672 reviews2023
Dev: Asteroid LabPub: Goblinz Publishing
Windows · Mac · Linux
Median: 3.4 hrsMean: 9.5 hrs≥1hr: 88%
Terraform Mars in this turn-based colony builder and resource management game with roguelike elements. Explore the planet, develop spectacular cities, spread life and turn the Red Planet into a green one!
Why similar: Mars 29.2% ★, Science 17.7%, Turn-Based 13.1%, Space 10.1%, Management 8.7%
Why You'll Like It: This strategic management game focuses on the long-term development and terraforming of Mars, matching the end-goal of the seed game.
- #5 SpaceCorp: 2025-2300AD
94% matchVery Positive83% of 71 reviews2025
Dev: Logix Interactive
Windows · Mac
Lead mankind's exploration into outer space! Build bases on the Moon and Mars, survey the rings of Saturn, and send generational Colony ships to Alpha Centauri, all in one sitting! SpaceCorp: 2025-2300 AD is a fast-playing, single-player, turn-based, sci-fi strategy game.
Why similar: Mars 25.8% ★, Science 16.3%, Education 12.2%, Space 10.5%, Alternate History 9.4%
Why You'll Like It: A strategic management game that focuses on the long-term expansion of space infrastructure and exploration milestones.
- #6 IXION
93% matchMostly Positive79% of 17,230 reviews2022
Dev: Bulwark StudiosPub: Kasedo Games
Windows
Median: 10.1 hrsMean: 30.9 hrs≥1hr: 90%
IXION is an unrelenting, city-building odyssey across the stars. As Administrator of the Tiqqun, DOLOS’ prototype space station, you are tasked with balancing preservation and exploration as you manage infrastructure, resources and crew. Can you keep the flame of humanity alight in the cold dark?
Why similar: Space 30.8%, Resource Management 16.3%, Building 14.9%, Strategy 10.3%, Management 8.5%
Why You'll Like It: It combines high-stakes space agency management with survival mechanics, requiring careful resource allocation to ensure the success of your mission.
- #7 Space Company Simulator
92% 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 27% ★, Space Sim 17.1%, Space 11.7%, Building 9.8%, Management 9.4%
Why You'll Like It: This title allows you to manage a space agency from the ground up, balancing research, funding, and mission success.
- #8 Sol 0: Mars Colonization
91% matchMixed69% of 409 reviews2016
Dev: Chondrite Games
Windows · Mac · Linux
Median: 3.0 hrsMean: 6.9 hrs≥1hr: 74%
Sol 0 is a real time strategy game where you establish the first Martian colony. From the first human footprints on Martian soil to a thriving and self-sustaining colony, Sol 0 imagines a near future using technology that could be available within the next few decades.
Why similar: Mars 53.5% ★, Space 22.8%, Strategy 14.2%, Simulation 9.4%
Why You'll Like It: It focuses specifically on the strategic management of a Martian colony, mirroring the endgame objectives found in Mars Horizon.
- #9 Farlanders
90% matchVery Positive91% of 576 reviews2023
Dev: Andriy BychkovskyiPub: Crytivo
Windows · Mac · Linux
Median: 2.2 hrsMean: 7.8 hrs≥1hr: 61%
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 35.1% ★, Turn-Based 15.9%, Space 12.4%, Management 10.1%, Building 9.6%
Why You'll Like It: A turn-based strategy game that requires careful planning and resource management to build a successful colony on Mars.
- #10 orbit.industries
91% matchMixed61% of 88 reviews2022
Dev: LAB132Pub: Klabater
Windows · Linux
🚀 Become a Space Pioneer by building and managing a station of your own on the orbit of distant planets! Focus on design and management or fulfill objectives to progress. 🛰️ Explore, Build and Prosper!
Why similar: Space Sim 20.7%, Space 17.7%, Science 17.6%, Management 10.8%, Building 9.7%
Why You'll Like It: This game centers on the construction and management of orbital stations, providing a similar technical focus to the mission-planning phase of Mars Horizon.
- #11 Reshaping Mars
89% matchVery Positive84% of 832 reviews2023
Dev: TholusPub: Yooreka Studio
Windows
Median: 2.2 hrsMean: 18.4 hrs≥1hr: 62%
「Reshaping Mars」is a colony simulation game on Mars, you will start by gathering resources, storing food, accepting immigrants, and building a better colony together. Develop powerful technologies for Mars Reshaping, make Mars great agai..sorry, just great. Don't forget to make the residents happy.
Why similar: Mars 36.8% ★, Space 13.2%, Building 12.8%, Management 10.6%, Resource Management 8.2%
Why You'll Like It: A management-heavy strategy game that focuses on the logistical challenges of developing a Martian settlement.
- #12 Stellar Settlers: Space Base Builder
88% matchMostly Positive71% of 823 reviews2025
Dev: Tinymice EntertainmentPub: Rogue Duck Interactive
Windows · Mac · Linux
Median: 2.4 hrsMean: 3.5 hrs≥1hr: 76%
Stellar Settlers is a chill space base/city builder and colony sim game. With unique vertical and horizontal base-building gameplay, settle on 10 hostile alien planets and build your own thriving colony. Get enough materials to build a physics-based Spaceship and try to escape from disasters.
Why similar: Mars 33.6% ★, Space Sim 15.7%, Space 10.9%, Building 10.4%, Resource Management 9.7%
Why You'll Like It: It emphasizes the resource management and base-building aspects required to sustain life on a hostile alien planet.
- #13 Stable Orbit - Build your own space station
89% matchMixed50% of 381 reviews2017
Dev: Jim Offerman
Windows · Mac · Linux
Median: 48 minMean: 4.9 hrs≥1hr: 47%
Design, build and control your own space station. Mission command and control is in your hands and only careful planning and vigilant supervision will keep your crew and space station safe.
Why similar: Space Sim 24%, Space 18.8%, Management 16.4%, Building 14.5%, Resource Management 11.1%
Why You'll Like It: It emphasizes the design and maintenance of space infrastructure, which complements the mission-building aspects of the seed game.
- #14 Solar Expanse - Space Exploration Manager
84% 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 21.3%, Space Sim 18%, Space 13.6%, Management 9.4%, Education 9.1%
Why You'll Like It: A sandbox-style management game that focuses on the logistics of large-scale space exploration.
- #15 Satellite Command
87% matchMixed64% of 81 reviews2016
Dev: Stormtide
Windows
Satellite Command is a realistic, relaxing astrophysics simulator. Complete contracts with real data, launch and take control of ever more powerful Satellites, research advanced technology and build your Space Agency!
Why similar: Science 21%, Space Sim 19.8%, Education 15.6%, Space 12.5%, Management 9.2%
Why You'll Like It: This simulation focuses on the technical side of managing satellite networks and orbital missions, similar to the mission control aspect of the seed game.
- #16 Space Haven
82% matchVery Positive86% of 10,442 reviews2026
Dev: Bugbyte Ltd.
Windows · Mac · Linux
Median: 4.2 hrsMean: 19.9 hrs≥1hr: 72%
Embark on a space voyage with your ragtag crew of civilians in search of a new home. Build spaceships tile by tile, create optimal gas conditions, manage the needs and moods of their crew, encounter other space-faring groups, and explore the universe in this spaceship colony simulation.
Why similar: Space Sim 25.5%, Space 16.8%, Management 15.5%, Building 13.5%, Resource Management 10.4%
Why You'll Like It: This game focuses on the management of a spacefaring vessel and its crew, requiring similar resource-balancing skills to the seed game.
- #17 Take On Mars
86% 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 35.7% ★, Science 14.5%, Space 14%, Space Sim 13%, Education 7%
Why You'll Like It: It provides a more granular look at the exploration and technical maintenance of Martian rovers and equipment.
- #18 Tiny Space Academy
85% matchMixed63% of 54 reviews2021
Dev: Full Orbit Games LLC
Windows · Mac
Tiny Space Academy is a 2D space sim where you can grow your own space agency and explore our solar system with rockets you design! Learn basic orbital mechanics, run science experiments, and get your astronauts back to Earth safely.
Why similar: Space Sim 25.6%, Space 17.9%, Education 16%, Building 11.6%, Physics 8.8%
Why You'll Like It: A simplified, accessible take on space program management that still captures the core loop of building rockets and exploring the solar system.
- #19 Per Aspera
84% 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 32.1% ★, Science 18.6%, Management 11.6%, Space 10.8%, Building 9.9%
Why You'll Like It: This game offers a planetary-scale management experience that focuses on the automation and terraforming of Mars.
- #20 Solargene
82% matchMostly Positive77% of 836 reviews2026
Dev: Alexander Semenov
Windows
Median: 4.2 hrsMean: 34.2 hrs≥1hr: 72%
Take Command of a Space Corporation in the Sci-Fi Simulator Solargene! Manage personnel, design and develop colonies and orbital stations across the solar system! Mine resources, establish logistics, research cutting-edge technologies, trade, and complete missions
Why similar: Space Sim 25.9%, Mars 21.8% ★, Management 12.4%, Space 11.6%, Building 11%
Why You'll Like It: A colony-management game that emphasizes the scientific and resource-gathering aspects of space exploration.
- #21 Rocket Science
83% 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 21%, Space Sim 19.7%, Space 13.4%, Education 13.2%, Building 10.3%
Why You'll Like It: This game focuses on the physics and engineering side of rocket construction, appealing to those who enjoy the design phase of Mars Horizon.
- #22 Mars First Logistics
79% matchVery Positive95% of 3,608 reviews2025
Dev: Shape Shop
Windows
Median: 4.3 hrsMean: 10.3 hrs≥1hr: 80%
Build physically simulated rovers to transport awkwardly shaped cargo across the rugged terrain of Mars. Earn funds, unlock new parts, and use your ingenuity to help the Martians establish a new home. Playable solo or in online co-op!
Why similar: Mars 40.7% ★, Science 14.9%, Space Sim 14.2%, Building 7.3%, Stylized 6.3%
Why You'll Like It: It focuses on the physical and logistical challenges of transporting supplies across the Martian surface.
- #23 Space Mechanic Simulator
81% 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: Space Sim 22.7%, Science 19.9%, Mars 17.5% ★, Space 13.5%, Building 8.5%
Why You'll Like It: It shifts the focus to the technical maintenance of space hardware, providing a deeper look at the equipment used in your missions.
- #24 Rover Mechanic Simulator
81% 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 28.8% ★, Science 16.6%, Space Sim 15.7%, Education 13%, Space 10%
Why You'll Like It: This game focuses on the detailed repair and maintenance of Martian rovers, adding a layer of technical realism to the exploration theme.
- #25 Planetbase
80% matchMostly Positive80% of 10,320 reviews2015
Dev: Madruga Works
Windows · Mac
Median: 8.2 hrsMean: 26.2 hrs≥1hr: 90%
Guide a group of space settlers trying to establish a base on a remote planet. Grow food, collect energy, mine resources, survive disasters and build a self-sufficient colony in a harsh and unforgiving environment.
Why similar: Space 32.5%, Management 12.8%, Space Sim 12.7%, Building 11.9%, Strategy 11.8%
Why You'll Like It: It emphasizes the logistical and architectural challenges of establishing a self-sustaining base in space.
- #26 Space Engineers
78% 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 32.9%, Space 19.4%, Building 15.9%, Physics 10%, Strategy 7.5%
Why You'll Like It: While more sandbox-oriented, it offers the most comprehensive building and engineering tools for those who love the technical side of space exploration.
- #27 Reentry - A Space Flight Simulator
75% matchOverwhelmingly Positive97% of 1,275 reviews2025
Dev: Lyra Creative
Windows
Median: 2.0 hrsMean: 5.6 hrs≥1hr: 69%
Do you have what it takes to become an astronaut? Reentry is a realistic space flight simulator inspired by the early NASA space programs, from orbiting Earth in Mercury and Gemini, to the moon landing in project Apollo. Learn the procedures. Operate the spacecraft. Complete the mission.
Why similar: Space Sim 23.1%, Science 19.9%, Space 14.6%, Education 10.6%, Historical 9.7%
- #28 Surviving Mars: Relaunched
77% matchMixed53% of 1,989 reviews2025
Dev: Haemimont GamesPub: Paradox Interactive
Windows
Median: 13.5 hrsMean: 30.4 hrs≥1hr: 91%
The award-winning sci-fi city builder is back - remastered, expanded and even more stunning. Colonize Mars and survive the process, from exploration and infrastructure to welcoming colonists and achieving long-term stability. Are you ready? Mars is waiting.
Why similar: Mars 37.5% ★, Space 12.3%, Management 9.5%, Building 9%, Immersive Sim 8.7%
- #29 Juno: New Origins
77% 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 24.1%, Space Sim 23.4%, Education 15.6%, Building 11.7%, Space 11.4%
- #30 Meeple Station
79% matchMixed57% of 947 reviews2020
Dev: Gameclaw StudioPub: Modularity
Windows · Mac · Linux
Median: 30 minMean: 9.3 hrs≥1hr: 39%
Build your way to success! Trade your way to the top! Explore your way to infamy! Do it all your way!
Why similar: Space Sim 22.4%, Space 17.9%, Management 13.1%, Building 13%, Resource Management 10.4%
Why You'll Like It: It provides a management-focused experience centered on space station operations and crew oversight.
- #31 Interstellar Transport Company
78% matchMixed67% of 410 reviews2019
Dev: MT Worlds
Windows · Mac · Linux
Median: 3.7 hrsMean: 5.9 hrs≥1hr: 77%
Build a galactic transportation empire and supply humanity with everything it needs to colonize the stars. In this sci-fi logistics simulator, grow your company from a local transport agency into an interstellar logistics behemoth! Singleplayer, vs AI, and online multiplayer.
Why similar: Space 32.9%, Management 19.4%, Space Sim 18.2%, Science 13.6%, Simulation 8.8%
Why You'll Like It: This game focuses on the economic and logistical management of space transport networks, a key component of agency growth.
- #32 Space Mechanic Simulator: Prologue
76% 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 29.4% ★, Space Sim 17.9%, Science 9.4%, Space 9.3%, Education 8.6%
- #33 Imagine Earth
76% matchVery Positive82% of 955 reviews2021
Dev: Serious Bros.
Windows · Mac · Linux
Median: 2.8 hrsMean: 5.3 hrs≥1hr: 84%
Build your own global colonies on distant worlds. Manage energy and resource supplies and produce goods for space trade. Form economic and diplomatic alliances or take over competing corporations. Conduct research to protect your colonists from disasters and avoid a climate crisis.
Why similar: Science 46.2%, Management 23.7%, Immersive Sim 19%, Strategy 11.1%
- #34 Occupy Mars: The Game
73% 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 46.1% ★, Space 16.5%, Building 13.1%, Resource Management 12.2%, Exploration 5.6%
- #35 Terra Invicta
72% matchVery Positive81% of 9,264 reviews2026
Dev: Pavonis InteractivePub: Hooded Horse
Windows
Median: 9.5 hrsMean: 51.9 hrs≥1hr: 80%
An alien invasion has fractured humanity into seven ideological factions each with a unique vision for the future. Lead your chosen faction to take control of Earth’s nations, expand across the Solar System, and battle enemy fleets in tactical combat.
Why similar: Alternate History 21.1%, Historical 18.8%, Turn-Based 18%, Management 14.6%, Space 13.5%
- #36 ΔV: Rings of Saturn
73% 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 26%, Science 24.6%, Space 19.2%, Immersive Sim 9.9%, Physics 8.8%
- #37 Spaceflight Simulator
72% 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 33.1%, Science 24.5%, Space 18.7%, Building 6.8%, Exploration 5.7%
- #38 Terraforming Mars
75% matchMostly Positive71% of 7,161 reviews2018
Dev: Artefacts StudioPub: Twin Sails Interactive
Windows · Mac
Median: 3.3 hrsMean: 32.0 hrs≥1hr: 66%
The taming of the Red Planet has begun! Corporations are competing to transform Mars into a habitable planet by spending vast resources and using innovative technology to raise temperature, create a breathable atmosphere, and make oceans of water.
Why similar: Mars 42.4% ★, Turn-Based 19.1%, Space 15.4%, Management 10.3%, Strategy 7%
- #39 Marble Age: Remastered
74% matchVery Positive86% of 392 reviews2020
Dev: Clarus Victoria
Windows · Mac · Linux
Median: 3.1 hrsMean: 6.3 hrs≥1hr: 76%
Marble Age is a turn-based historical strategy where your task is to turn a small Ancient Greek village into a flourishing Polis, powerful enough to conquer the known world!
Why similar: Turn-Based 20.7%, Historical 17%, Management 13.4%, Building 13.3%, Education 11.8%
- #40 Terraformers: First Steps on Mars
73% matchVery Positive89% of 700 reviews2021
Dev: Asteroid LabPub: Goblinz Publishing
Windows · Mac · Linux
Median: 1.0 hrsMean: 6.1 hrs≥1hr: 48%
Terraformers: First Steps on Mars is a free prologue of Terraformers, featuring an exclusive challenge to lead humanity's first attempt at settling the Red Planet.
Why similar: Mars 37.9% ★, Space Sim 22.5%, Management 11.1%, Resource Management 9.9%, Strategy 7%
- #41 Rover Builder
74% 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 35.2% ★, Science 22.9%, Space 12.8%, Building 11.8%, Physics 7.2%
- #42 Stranded: Alien Dawn
71% matchVery Positive84% of 11,043 reviews2023
Dev: Haemimont GamesPub: Paradox Interactive
Windows
Median: 7.0 hrsMean: 24.2 hrs≥1hr: 87%
Brave a new world in Stranded: Alien Dawn, a planet survival sim placing the fate of a small marooned group in your hands. Forge your story through compelling and immersive strategic gameplay as you make vital decisions to protect your survivors.
Why similar: Management 24.8%, Strategy 16.9%, Resource Management 15.8%, Simulation 13.4%, Choices Matter 12.3%
- #43 InfraSpace
70% matchMostly Positive80% of 1,907 reviews2023
Dev: Dionic Software
Windows · Mac
Median: 3.8 hrsMean: 21.6 hrs≥1hr: 70%
Create an extrasolar efficiency utopia from scratch! In this sci-fi city builder you need to start mining operations, plan production, and lay down transportation routes to ensure a smooth supply chain.
Why similar: Science 27.8%, Space 19.1%, Management 15%, Building 14.7%, Resource Management 12.9%
- #44 Plan B: Terraform
68% 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 46.8% ★, Management 14.9%, Resource Management 14.8%, Building 11.7%, Simulation 6.1%
- #45 Exogate Initiative
70% matchMostly Positive76% of 707 reviews2025
Dev: Xeno Bits
Windows
Build and manage mankind’s first mission across the universe! Create a sprawling facility underground, recruit a diverse group of specialists from around the globe and explore mysterious new worlds through the Exogate.
Why similar: Management 21.4%, Building 18.4%, Space 18.3%, Resource Management 15.7%, Strategy 9.6%
- #46 The Universim
69% matchMostly Positive80% of 10,560 reviews2024
Dev: Crytivo
Windows · Mac · Linux
Median: 7.3 hrsMean: 34.1 hrs≥1hr: 89%
Jump straight into managing your own planets as you guide a civilization through the ages. Build the ultimate empire in The Universim, a new breed of God Game in development by Crytivo.
Why similar: Building 24.5%, Space 22.3%, Management 21.9%, Resource Management 11.2%, Strategy 8.8%
- #47 The Last Starship
67% matchMostly Positive75% of 1,491 reviews2026
Dev: Introversion Software
Windows · Mac
Median: 6.1 hrsMean: 11.2 hrs≥1hr: 81%
The Last Starship is a 2D space construction game where you design and upgrade your starship. Choose your path: pirate hunter, miner, engineer, spacebus driver, and more, whilst exploring vibrant star systems. Enjoy a growing sandbox world, with regular free updates. Your cosmic adventure awaits!
Why similar: Space Sim 26.6%, Science 18.7%, Space 15.8%, Building 12.5%, Management 9.8%
- #48 Workers & Resources: Soviet Republic
66% matchVery Positive91% of 25,891 reviews2024
Dev: 3DivisionPub: Hooded Horse
Windows
Median: 6.4 hrsMean: 73.1 hrs≥1hr: 77%
Build a soviet republic from an impoverished country into a rich industrial superpower in a city builder with intricate production chains and a fully simulated global economy. Manage the lives of your citizens from education to work and party loyalty to criminal activity.
Why similar: Historical 21.9%, Management 18%, Alternate History 17%, Building 16.2%, Resource Management 9.7%
- #49 Final Upgrade
69% matchMostly Positive77% of 454 reviews2022
Dev: TaosX
Windows
Median: 3.8 hrsMean: 12.1 hrs≥1hr: 69%
Help humanity to spread throughout the cosmos by exploring new worlds, building space factories and setting up trade routes. Research advanced technologies to increase efficiency and unlock new paths of development. Fight off other artificial intelligences in your goal to reach the Final Upgrade!
Why similar: Space Sim 25.2%, Space 19.8%, Building 15.3%, Management 14.6%, Resource Management 12.4%
- #50 1000 days to escape
69% matchVery Positive84% of 401 reviews2019
Dev: Lemon Squeezy
Windows
Median: 2.0 hrsMean: 3.3 hrs≥1hr: 77%
Only 1000 days left until the end of the world. You have to realize the largest space program ever to save as many people as you can. Explore planets, colonize them, help people find a new home.
Why similar: Space Sim 28.7%, Mars 26% ★, Space 22.1%, Science 16.9%, Simulation 5.3%
- #51 Starship Corporation
71% matchMixed42% of 557 reviews2018
Dev: Coronado GamesPub: Iceberg Interactive
Windows
Median: 4.3 hrsMean: 9.7 hrs≥1hr: 89%
A sci-fi simulation game, in which players must design, assemble and test spaceships, in a bid to build a supreme Galactic Mega-Corporation. Gain your reputation by engineering and selling your own spacecraft, testing them to the limit in RTS missions and simulated emergency and combat situations.
Why similar: Management 35.3%, Space 27.2%, Strategy 19.6%, Simulation 17.9%
- #52 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 25.5%, Space 24%, Resource Management 15.9%, Building 15.7%, Strategy 7.8%
- #53 Stationeers
67% 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 27.1%, Space 15.3%, Management 13.6%, Building 12.9%, Logic 11.9%
- #54 Aven Colony
68% matchMostly Positive72% of 2,747 reviews2017
Dev: Mothership Entertainment LLCPub: Team17 Digital Ltd
Windows
Median: 4.2 hrsMean: 8.2 hrs≥1hr: 90%
Build a new home for humanity in Aven Colony. Discover Aven Prime - an alien planet of deserts, tundras, and wetlands light years from earth. Build your colonies into massive, sprawling cities whilst dealing with the challenges faced when settling on a new world.
Why similar: Space 29.5%, Strategy 27.9%, Simulation 17.6%, Management 12.3%, Resource Management 10.5%
- #55 The Crust
65% matchMostly Positive77% of 3,542 reviews2024
Dev: VEOM StudioPub: Crytivo
Windows
Median: 7.0 hrsMean: 23.2 hrs≥1hr: 82%
Automate a lunar base as you become the savior of humanity exploring the future on the moon. Mine, craft, research, and trade resources with Earth in this gripping narrative basebuilder.
Why similar: Space 26.2%, Management 17.9%, Resource Management 17.2%, Building 16.8%, Strategy 8.4%
- #56 Mars or Die!
70% matchMixed53% of 74 reviews2018
Dev: 34BigThings srl
Windows
Median: 12 minMean: 11.7 hrs≥1hr: 37%
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 35.4% ★, Space Sim 17.6%, Space 11.8%, Management 9.4%, Building 8.7%
- #57 StarbaseSim
65% 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 36.2%, Education 17.3%, Immersive Sim 12.8%, Space 11.6%, Logic 9.9%