- #1 Planetbase
97% matchMostly Positive80% of 10,262 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: Colony Sim 29.7% ★, City Builder 13.5%, Base Building 13.1%, Space 11.9%, Building 4.9%
Why You'll Like It: A classic space colony builder that challenges you to manage resources and build a self-sustaining base on harsh alien worlds.
- #2 IXION
96% matchMostly Positive79% of 17,015 reviews2022
Dev: Bulwark StudiosPub: Kasedo Games
Windows
Median: 10.0 hrsMean: 31.1 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: Colony Sim 24.5% ★, Space 16.6%, City Builder 15.6%, Base Building 10.8%, Resource Management 9.4%
Why You'll Like It: This game offers a high-stakes space station management experience that mirrors the survival and expansion themes of The Final Earth 2.
- #3 Oxygen Not Included
96% matchOverwhelmingly Positive97% of 138,890 reviews2019
Dev: Klei Entertainment
Windows · Mac · Linux
Median: 8.9 hrsMean: 67.7 hrs≥1hr: 86%
Oxygen Not Included is a space-colony simulation game. Deep inside an alien space rock your industrious crew will need to master science, overcome strange new lifeforms, and harness incredible space tech to survive, and possibly, thrive.
Why similar: Colony Sim 35.6% ★, Base Building 16.7%, Resource Management 8.8%, Building 8.7%, Management 6.7%
Why You'll Like It: A complex colony simulation that requires careful management of resources and environment, much like the challenges faced in space colonization.
- #4 Space Haven
94% matchVery Positive86% of 9,719 reviews2020
Dev: Bugbyte Ltd.
Windows · Mac · Linux
Median: 4.3 hrsMean: 20.2 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: Colony Sim 19.7% ★, Space Sim 12.2% ★, Base Building 9.6%, Space 8.3%, City Builder 8.1%
Why You'll Like It: Features modular ship building and crew management that feels very similar to the base-building loop of The Final Earth 2.
- #5 Timberborn
91% matchOverwhelmingly Positive96% of 38,007 reviews2026
Dev: Mechanistry
Windows · Mac
Median: 9.8 hrsMean: 40.3 hrs≥1hr: 84%
Humans are long gone. In a world struck by droughts and toxic waste, will your lumberpunk beavers do any better? A sandbox city-building game featuring ingenious animals, vertical architecture, water physics, and terraforming. Contains high amounts of wood.
Why similar: Colony Sim 29.3% ★, City Builder 17.1%, Base Building 12.6%, Building 11.6%, Management 11.2%
Why You'll Like It: While not space-themed, its focus on vertical building mechanics makes it a perfect mechanical match for the verticality of The Final Earth 2.
- #6 Farlanders
93% 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: Colony Sim 23.3% ★, Base Building 11.4%, City Builder 11.3%, Space 10.9%, Building 9.5%
Why You'll Like It: A turn-based colony builder that focuses on terraforming and building on Mars with a similar aesthetic and scope.
- #7 Aven Colony
94% matchMostly Positive72% of 2,731 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: Colony Sim 39.5% ★, City Builder 17.8%, Base Building 10.3%, Sci-fi 6.8%, Strategy 6.7%
Why You'll Like It: Focuses on building and managing a sci-fi colony on an alien planet, emphasizing infrastructure and population needs.
- #8 Stardeus
92% matchVery Positive87% of 1,529 reviews2022
Dev: Kodo LinijaPub: Paradox Arc
Windows · Mac · Linux
Median: 8.7 hrsMean: 22.6 hrs≥1hr: 77%
Stardeus is a deep colony sim set on a broken starship manned by drones and hibernating human survivors. As the AI, have your drones repair your ship, save your crew and travel the stars in this beautiful simulation.
Why similar: Colony Sim 21.4% ★, Space Sim 12.8% ★, Moddable 12.1% ★, Base Building 10.3%, Space 9.6%
Why You'll Like It: A deep space colony simulation that allows for intricate base-building and automation in a sci-fi setting.
- #9 The Crust
91% matchMostly Positive77% of 3,397 reviews2024
Dev: VEOM StudioPub: Crytivo
Windows
Median: 7.0 hrsMean: 22.5 hrs≥1hr: 83%
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: Colony Sim 23.6% ★, Base Building 12.5%, Space 11.3%, City Builder 9%, Building 8.2%
Why You'll Like It: A moon-based colony builder that emphasizes automation and resource extraction in a challenging space environment.
- #10 RimWorld
90% matchOverwhelmingly Positive98% of 236,346 reviews2018
Dev: Ludeon Studios
Windows · Mac · Linux
Median: 59.1 hrsMean: 259.4 hrs≥1hr: 92%
A sci-fi colony sim driven by an intelligent AI storyteller. Generates stories by simulating psychology, ecology, gunplay, melee combat, climate, biomes, diplomacy, interpersonal relationships, art, medicine, trade, and more.
Why similar: Colony Sim 29% ★, Moddable 14.3% ★, Base Building 13.8%, Management 8.3%, Sandbox 7.2%
Why You'll Like It: The definitive colony-sim experience that offers unparalleled depth in managing the lives and tasks of your settlers.
- #11 InfraSpace
89% matchMostly Positive80% of 1,870 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: Moddable 14% ★, City Builder 13.2%, Space 12.2%, Building 10.5%, Base Building 10%
Why You'll Like It: Combines city building with a heavy focus on transportation and logistics, perfect for those who enjoy the management aspect of space colonies.
- #12 Dyson Sphere Program
89% matchOverwhelmingly Positive98% of 90,027 reviews2021
Dev: Youthcat StudioPub: Gamirror Games
Windows
Median: 13.2 hrsMean: 75.2 hrs≥1hr: 84%
Build the most efficient intergalactic factory in space simulation strategy game Dyson Sphere Program! Harness the power of stars, collect resources, plan and design production lines and develop your interstellar factory from a small space workshop to a galaxy-wide industrial empire.
Why similar: Base Building 16.8%, Space 15.9%, Building 11.4%, Space Sim 9.5% ★, Management 9%
Why You'll Like It: Offers a grand-scale approach to space building and automation that will appeal to fans of the research and technology progression in The Final Earth 2.
- #13 Cliff Empire
88% matchVery Positive87% of 4,340 reviews2019
Dev: Lion's Shade
Windows · Mac
Median: 4.0 hrsMean: 15.2 hrs≥1hr: 79%
After a nuclear war life on the surface became impossible. A 300m thick radioactive fog covered the Earth. We are looking for bold active people to manage the process of restoring life on Earth. Join!
Why similar: Colony Sim 20.6% ★, City Builder 12%, Management 8.6%, Futuristic 8.4%, Base Building 8.2%
Why You'll Like It: Features vertical city building on platforms, which directly mirrors the unique vertical expansion mechanics of The Final Earth 2.
- #14 Stellar Settlers: Space Base Builder
87% matchMostly Positive71% of 818 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: Colony Sim 23.7% ★, Base Building 11.7%, City Builder 11.2%, Space Sim 11.1% ★, Building 8.9%
Why You'll Like It: Allows you to build colonies across various planets, emphasizing the exploration and expansion themes of the seed game.
- #15 Solargene
85% matchMostly Positive76% of 819 reviews2026
Dev: Alexander Semenov
Windows
Median: 3.7 hrsMean: 34.8 hrs≥1hr: 71%
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: Colony Sim 19.1% ★, Space Sim 13.1% ★, Base Building 9.2%, Moddable 8.5% ★, City Builder 8.3%
Why You'll Like It: A detailed space colony simulation that emphasizes realistic challenges and base-building mechanics.
- #16 The Colonists
86% matchVery Positive86% of 1,205 reviews2018
Dev: CodebyfirePub: Mode 7
Windows · Mac · Linux
Median: 4.0 hrsMean: 13.0 hrs≥1hr: 85%
Build a new home for your team of robots as they begin a new life for themselves on a distant planet where they can fulfil their ultimate dream: to be human.
Why similar: Colony Sim 28.7% ★, City Builder 14%, Building 12.1%, Base Building 11.2%, Management 11.1%
Why You'll Like It: A charming, automation-focused city builder that shares a similar visual style and focus on resource logistics.
- #17 Against the Storm
84% matchVery Positive95% of 35,504 reviews2023
Dev: Eremite GamesPub: Hooded Horse
Windows
Median: 5.5 hrsMean: 28.3 hrs≥1hr: 84%
A dark fantasy city builder where you must rebuild civilization in the face of apocalyptic rains. As the Queen’s Viceroy, lead humans, beavers, lizards, foxes, and harpies to reclaim the wilderness and secure a future for civilization's last survivors.
Why similar: Colony Sim 21.4% ★, Moddable 14.6% ★, Base Building 10.9%, City Builder 10.4%, Building 9.4%
Why You'll Like It: A unique roguelite city-builder that emphasizes strategic decision-making and efficient resource management in a fantasy setting.
- #18 Imagine Earth
86% matchVery Positive82% of 952 reviews2021
Dev: Serious Bros.
Windows · Mac · Linux
Median: 2.8 hrsMean: 5.4 hrs≥1hr: 83%
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: Colony Sim 33.4% ★, Base Building 15.7%, City Builder 15.4%, Management 12.6%, Sandbox 11.9%
Why You'll Like It: A planetary management game that focuses on balancing economic growth with environmental sustainability.
- #19 Reshaping Mars
84% matchVery Positive85% of 831 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: Colony Sim 23.1% ★, Base Building 13.8%, Building 11.2%, Space 10.3%, Management 8.2%
Why You'll Like It: A strategy-heavy colony management game that focuses on the long-term development of a Martian settlement.
- #20 Final Factory
82% matchMostly Positive79% of 300 reviews2024
Dev: Never Games Limited
Windows · Mac
Median: 1.9 hrsMean: 7.9 hrs≥1hr: 63%
Final Factory blends factory building, spaceship design, and a rich universe to explore. Build a mega factory and command a massive fleet against the hostile local aliens. Discover new technologies and unlock the secrets of an ancient civilization as you explore an infinite cosmos.
Why similar: Moddable 18% ★, Base Building 17%, Space 12.5%, Building 12.2%, Resource Management 11.4%
Why You'll Like It: Focuses on massive-scale automation and base building in space, providing a satisfying progression loop.
- #21 The Spatials: Galactology
82% matchMixed69% of 258 reviews2018
Dev: Weird and Wry
Windows · Mac · Linux
Median: 2.8 hrsMean: 4.7 hrs≥1hr: 77%
The Spatials are back with Galactology! Design, build and protect your colony station from the many enemies you will make while exploring the galaxy and exploding their homeworlds.
Why similar: Colony Sim 22.1% ★, Space Sim 13.5% ★, City Builder 10.7%, Base Building 10.6%, Management 8.9%
Why You'll Like It: Combines space station building with research and management, offering a similar gameplay loop to The Final Earth 2.
- #22 Endzone 2
79% matchMixed69% of 1,004 reviews2025
Dev: Gentlymad StudiosPub: Assemble Entertainment
Windows
Median: 2.3 hrsMean: 8.5 hrs≥1hr: 70%
Endzone 2 is a post-apocalyptic survival colony builder, where you embark to secure humanity's survival after a cataclysmic disaster. Discover and repopulate the last habitable grounds, while the survival of your people hinges on your wits, foresight, and resilience in a harsh and unforgiving world.
Why similar: Colony Sim 30.3% ★, City Builder 13.8%, Base Building 11.5%, Building 10.6%, Sandbox 10.1%
Why You'll Like It: A post-apocalyptic colony builder that emphasizes survival and resource management in a harsh, unforgiving world.
- #23 Stable Orbit - Build your own space station
83% matchMixed51% of 380 reviews2017
Dev: Jim Offerman
Windows · Mac · Linux
Median: 48 minMean: 5.0 hrs≥1hr: 46%
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: Colony Sim 14.2% ★, Space Sim 13.2% ★, Space 11.1%, Management 9.6%, Building 9.6%
Why You'll Like It: A dedicated space station builder that focuses on the technical challenges of living and working in orbit.
- #24 After the Collapse
80% matchMostly Positive78% of 209 reviews2022
Dev: Anarkis Gaming
Windows
ATC is a base building game set in a post-apocalyptic world featuring urban environments. Build a base across several layers with dozens of survivors. Fight other factions for the control of the remaining production centers and explore the world to find long forgotten resources and technologies.
Why similar: Colony Sim 26.9% ★, Moddable 14.4% ★, Base Building 12.8%, City Builder 10.2%, Management 10.1%
Why You'll Like It: A survival-focused colony sim that requires careful planning and base expansion to survive in a hostile environment.
- #25 Exogate Initiative
78% matchMostly Positive76% of 699 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: Colony Sim 20% ★, Base Building 11.4%, City Builder 10.4%, Management 9.8%, Building 9.5%
Why You'll Like It: Focuses on managing a research facility and portal network, offering a unique take on the base-building genre.
- #26 Meeple Station
81% matchMixed57% of 941 reviews2020
Dev: Gameclaw StudioPub: Modularity
Windows · Mac · Linux
Median: 30 minMean: 9.4 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: Colony Sim 16.4% ★, Moddable 11.4% ★, Space Sim 10.7% ★, Space 9.2%, Base Building 9%
Why You'll Like It: A space station management game that focuses on crew interaction and modular base construction.
- #27 The Last Starship
76% matchMostly Positive75% of 1,419 reviews2026
Dev: Introversion Software
Windows · Mac
Median: 5.6 hrsMean: 10.4 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: Colony Sim 19.3% ★, Space Sim 16.9% ★, Base Building 11.1%, Space 10.8%, Building 9.5%
- #28 T-Minus 30
78% matchVery Positive93% of 189 reviews2021
Dev: Dejobaan GamesPub: SUPERHOT PRESENTS
Windows
Plan a city and build a space fleet to escape a dying Earth before time runs out. You have 30 minutes to scavenge a post-apocalyptic environment to build infrastructure, grow crops, generate power, and assemble rockets to save as many people as you can.
Why similar: Colony Sim 29.6% ★, City Builder 17.7%, Base Building 15.6%, Management 11.7%, Time Management 8.4%
Why You'll Like It: A fast-paced city builder that challenges you to build a colony before a time-limited disaster strikes.
- #29 Microtopia
75% matchVery Positive88% of 903 reviews2025
Dev: Cordyceps CollectivePub: Goblinz Publishing
Windows
Median: 3.7 hrsMean: 9.2 hrs≥1hr: 74%
Become the hive mind of a robot ant colony in Microtopia! Use pheromone trails to create, automate and optimize supply chains for your ants to follow. Collect resources, produce goods, feed your queen, grow your colony and fly out to expand the species!
Why similar: Colony Sim 21.7% ★, Moddable 12.1% ★, Base Building 9.8%, City Builder 9.3%, Management 8.1%
- #30 Final Upgrade
77% matchMostly Positive77% of 451 reviews2022
Dev: TaosX
Windows
Median: 2.9 hrsMean: 12.2 hrs≥1hr: 67%
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 15.4% ★, Base Building 13.9%, Space 13.5%, Building 12%, Management 10.2%
- #31 Spacebase DF-9
81% matchOverwhelmingly Negative18% of 4,324 reviews2014
Dev: Double Fine Productions
Windows · Mac · Linux
Median: 3.2 hrsMean: 4.9 hrs≥1hr: 90%
In Spacebase DF-9, you'll build a home among the stars for a motley population of humans and aliens as they go about their daily lives. Mine asteroids, discover derelicts, and deal with the tribulations of galactic resettlement in Earth's distant future.
Why similar: Space 20.5%, Base Building 18.9%, Building 10.9%, Sandbox 10.3%, Sci-fi 9.6%
Why You'll Like It: A classic space colony simulation that captures the essence of managing a growing population in a sci-fi environment.
- #32 Per Aspera
77% 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: Colony Sim 19% ★, Moddable 14.1% ★, Base Building 9.6%, City Builder 9.1%, Management 8.4%
- #33 Trappist
76% matchVery Positive90% of 72 reviews2024
Dev: Sirrah
Windows · Mac · Linux
Welcome to Trappist-1, 40.7 light-years from Earth. Fly your Ark, a colossal spaceship and mobile base. Explore the solar system and establish thriving colonies. Uncover the mysteries of Trappist in this story-driven colony builder.
Why similar: Colony Sim 20.8% ★, Space Sim 15.1% ★, City Builder 10%, Base Building 9.4%, Building 8.9%
- #34 Maia
79% matchMixed44% of 1,063 reviews2018
Dev: Simon RothPub: Machine Studios
Windows · Mac · Linux
Median: 30 minMean: 4.4 hrs≥1hr: 41%
Maia is a colony building game set in the not-so-distant future. Your colonists make planetfall on a hostile world and you must ensure their survival and their safety, constructing their off-world habitat from almost nothing and sheltering them from a dangerous, often deadly environment.
Why similar: Colony Sim 37.6% ★, Management 10.9%, Base Building 9.9%, Space 9.2%, Sci-fi 7.9%
Why You'll Like It: A hard sci-fi colony simulation that focuses on the technical and survival aspects of building on a distant planet.
- #35 Space Architect
75% matchMostly Positive76% of 283 reviews2024
Dev: Albert WiatrPub: PlayWay S.A.
Windows
Design your dream space station in Space Architect! Master the power of automation or 'hire' an army of crewmates to handle your ever-growing production. Mine asteroids, fabricate goods, and engage in interstellar trade to pay off the menacing Big Evil Corp. Will you thrive in the vastness of space?
Why similar: Colony Sim 26.7% ★, Base Building 13%, Management 10.9%, Building 9.9%, Space 8.1%
- #36 Paleon
73% matchVery Positive83% of 406 reviews2023
Dev: Paleodev
Windows · Linux
Median: 3.2 hrsMean: 6.2 hrs≥1hr: 86%
Your time machine is broken. And it looks like you are stuck in the past. Try to create your own civilization and return home!
Why similar: Colony Sim 43.9% ★, City Builder 12.9%, Building 11.1%, Sandbox 8.7%, Strategy 6.2%
- #37 Kubifaktorium
74% matchVery Positive81% of 786 reviews2021
Dev: Neomateria Games GmbH
Windows · Linux
Median: 2.3 hrsMean: 6.7 hrs≥1hr: 62%
Build, manage and grow a thriving colony in Kubifaktorium. The game features different biomes to explore, plenty of resources to exploit, complex machinery to build and interesting production chains to master.
Why similar: Colony Sim 26.8% ★, City Builder 12.8%, Building 11.2%, Moddable 10.9% ★, Base Building 10.8%
- #38 Oxygen
73% matchMostly Positive73% of 865 reviews2023
Dev: Turquoise Revival GamesPub: GrabTheGames
Windows
Median: 3.5 hrsMean: 9.8 hrs≥1hr: 78%
Oxygen is a survival city builder. Build your city around the Oxygen Center and ensure your people's survival in a post-apocalyptic future, threatened by crack explosions, deadly winds, droughts and frosts. Lead your people and more importantly keep the Oxygen Center running!
Why similar: Colony Sim 25.8% ★, Base Building 14%, City Builder 13.4%, Building 10%, Sandbox 9.4%
- #39 Factory Town
72% matchVery Positive91% of 4,419 reviews2021
Dev: Erik Asmussen
Windows · Mac
Median: 3.5 hrsMean: 14.1 hrs≥1hr: 76%
Build, automate, and optimize a giant factory on 3D terrain using conveyor belts, trains, chutes, pipes, and airships. Sell your goods to nearby villages to expand their borders, increase happiness, and unlock even better technology!
Why similar: Colony Sim 22% ★, Base Building 13.5%, City Builder 11%, Management 10.2%, Sandbox 9.5%
- #40 Blueprint Tycoon
74% matchVery Positive82% of 1,097 reviews2016
Dev: Endless Loop Studios
Windows · Mac · Linux
Median: 4.1 hrsMean: 6.0 hrs≥1hr: 85%
Build your settlement, gather goods, ensure maximum efficiency and make a profit!
Why similar: Colony Sim 39.6% ★, Management 18.6%, City Builder 10.6%, Resource Management 9%, Sandbox 6.8%
- #41 Industries of Titan
73% matchMixed63% of 1,604 reviews2023
Dev: Brace Yourself Games
Windows
Median: 5.4 hrsMean: 14.0 hrs≥1hr: 84%
Create a sprawling industrial city. Compete with other rival corporations on Titan for resources, territory, and power. Seek victory via technology, influence, warfare, or the wealth extracted from your citizens. Stake your claim to the Industries of Titan in this innovative sim/strategy game!
Why similar: Colony Sim 21.3% ★, Space Sim 13.9% ★, City Builder 11.1%, Base Building 9.7%, Space 8.5%
- #42 The Universim
70% matchVery Positive80% of 10,483 reviews2024
Dev: Crytivo
Windows · Mac · Linux
Median: 7.3 hrsMean: 33.9 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: Colony Sim 29.9% ★, City Builder 14.1%, Building 11.4%, Sandbox 10%, Space 9.3%
- #43 Alien Horizon (Preview Alpha)
71% matchVery Positive87% of 188 reviews2024
Dev: Purple Nebula
Windows
A sci-fi survival city builder set on an inhospitable alien planet. Faced with imminent destruction of Earth, humanity pooled together their resources and sent sleeper ships to nearby potentially habitable planets. But this one turned out to be much less habitable than expected....
Why similar: Colony Sim 32.6% ★, City Builder 17.2%, Building 12.6%, Base Building 12.3%, Strategy 7.1%
- #44 EarthX
70% matchVery Positive88% of 905 reviews2023
Dev: DenisPub: Mesote Games
Windows · Mac · Linux
Median: 6.3 hrsMean: 12.8 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: Colony Sim 21.9% ★, Space Sim 18.2% ★, Space 13.4%, Management 11.7%, Base Building 11.6%
- #45 Idle Colony
69% matchVery Positive83% of 544 reviews2024
Dev: Faith G.
Windows
Median: 7.7 hrsMean: 20.5 hrs≥1hr: 90%
A condensed incremental experience, where you build a colony to collect and merge bigger and bigger fruits. Combine game-changing technologies and special upgrades to find the best synergies and take your cash flow to another dimension.
Why similar: Colony Sim 39.4% ★, Management 17.2%, Building 16.1%, Strategy 9.5%, Resource Management 9.1%
- #46 Judgment: Apocalypse Survival Simulation
71% matchVery Positive81% of 2,242 reviews2018
Dev: Suncrash
Windows
Median: 4.7 hrsMean: 25.2 hrs≥1hr: 87%
Build, scavenge, craft, and perform occult rituals to survive in a demon-infested, post-apocalyptic colony simulation. Will you survive Judgment day?
Why similar: Colony Sim 36.1% ★, Base Building 16.3%, Sandbox 8%, City Builder 6.8%, Management 6.7%
- #47 Space Colony: Steam Edition
72% matchVery Positive80% of 657 reviews2015
Dev: Firefly Studios
Windows
Median: 3.4 hrsMean: 4.8 hrs≥1hr: 87%
Space Colony: Steam Edition is a remaster of the real-time base builder and strategy game from Firefly Studios, creators of the Stronghold series. In Space Colony you colonize to survive, designing intergalactic bases that keep your crew productive, happy and defended against hostile alien threats.
Why similar: Colony Sim 22.2% ★, Space Sim 15.5% ★, City Builder 10.5%, Base Building 9.8%, Sandbox 8%
- #48 Drill Core
67% matchVery Positive85% of 2,264 reviews2025
Dev: Hungry Couch GamesPub: tinyBuild
Windows
Median: 6.6 hrsMean: 14.6 hrs≥1hr: 89%
Corporate greed meets strategic planet-mining in Drill Core! Drill to the heart of planets while managing workers, researching cutting-edge tech, and fortifying against alien attacks. Will you prioritize efficiency and risk your workers' safety, or focus on defense for survival?
Why similar: Colony Sim 30.4% ★, Base Building 12.3%, City Builder 12.2%, Management 8.1%, Space 7%
- #49 One More Island
71% matchMixed68% of 250 reviews2022
Dev: Berg GamesPub: indie.io
Windows
Median: 1.3 hrsMean: 11.4 hrs≥1hr: 56%
As the Queen's latest governor, build a colonial empire in Her name. Claim islands, collect their natural resources, build production chains, and turn a derelict outpost into a rebellious, bustling metropolis at the heart of a New World commercial empire!
Why similar: Colony Sim 31.9% ★, City Builder 15.1%, Building 13.1%, Base Building 12.8%, Management 11.4%
- #50 Plan B: Terraform
65% 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: Colony Sim 29.3% ★, Base Building 13.5%, Resource Management 11.3%, Sandbox 10.9%, Management 10.6%
- #51 The Bonfire 2: Uncharted Shores
70% matchMixed69% of 360 reviews2020
Dev: Xigma Games
Windows · Mac
Median: 5.9 hrsMean: 8.3 hrs≥1hr: 94%
Build, survive, explore. Design your city, manage resource chains and workers, Send ships on expedition, trade with cities, discover mysterious dungeons and uncover secrets of ancients.
Why similar: Colony Sim 40.8% ★, Base Building 14.2%, City Builder 12.3%, Building 10.5%, Resource Management 9.5%
- #52 Reus 2
65% matchVery Positive95% of 2,219 reviews2024
Dev: Abbey GamesPub: Firesquid
Windows
Median: 3.5 hrsMean: 9.8 hrs≥1hr: 75%
Shape worlds with your godly titans. Make symbiotic ecosystems and inspire humanity with your creations. Their achievements unlock new possibilities. Make different planets for different human spirits, and fill the universe with life!
Why similar: Colony Sim 27.6% ★, Base Building 12.8%, City Builder 12.2%, Management 10.8%, Resource Management 8.7%
- #53 Before We Leave
68% matchMostly Positive78% of 1,697 reviews2021
Dev: Balancing Monkey GamesPub: Team17
Windows · Mac
Median: 3.5 hrsMean: 6.0 hrs≥1hr: 85%
Before We Leave is a city building game set in a cozy corner of the universe. Nurture your Peeps and their surroundings while rebuilding and rediscovering civilisation. Settle new lands and planets while avoiding hungry Space Whales.
Why similar: Colony Sim 19.5% ★, City Builder 13.9%, Space 11.7%, Building 11%, Resource Management 9.2%
- #54 Mercury Fallen
67% matchMostly Positive79% of 307 reviews2023
Dev: Nitrous ButterflyPub: indie.io
Windows · Mac
Median: 3.2 hrsMean: 5.3 hrs≥1hr: 87%
A sci-fi colony management sim with a focus on exploration, expansion, and survival. Rebuild your underground facility, manage colonists and robots, and uncover the mysteries of an alien world light-years from Earth. Dig deep, expand across the surface, and shape your new home.
Why similar: Colony Sim 27.5% ★, Base Building 13.3%, Management 11.9%, Building 11.5%, Space 10.7%
- #55 Ratopia
64% matchVery Positive88% of 4,645 reviews2025
Dev: Cassel Games
Windows · Mac
Median: 7.9 hrsMean: 26.1 hrs≥1hr: 86%
Ratopia is a new game that has combined elements of both strategic survival and city building. With plenty of content available, and more planned, enjoy a vast world to adventure and populate with citizens! Build your own economical system to sustain your ideal city of Ratopia.
Why similar: Colony Sim 27.4% ★, Base Building 13.2%, Building 12.5%, City Builder 11.2%, Management 10.2%
- #56 Final Frontier Story
65% matchVery Positive82% of 55 reviews2026
Dev: Kairosoft Co.,Ltd
Windows
Dodge lasers and explore! Planetary Development Simulation
Why similar: Colony Sim 38.1% ★, Space Sim 25% ★, City Builder 14.7%, Simulation 9.3%, Sci-fi 4.1%
- #57 Sphere - Flying Cities
69% matchMixed50% of 237 reviews2022
Dev: mañana studiosPub: Assemble Entertainment
Windows
Sphere – Flying Cities is a sci-fi citybuilder which combines strategy, simulation, and survival elements in an extraordinary and immersive scenario. Rebuild and protect a society in a unique and hostile environment. Pay the price for your decisions and be prepared to lose everything.
Why similar: Colony Sim 31.1% ★, City Builder 14.9%, Space 13.7%, Building 11.2%, Resource Management 9.3%
- #58 Astro Colony
66% 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: Colony Sim 24.7% ★, Base Building 15.9%, Space 12.8%, Space Sim 12.6% ★, Building 9.4%
- #59 My Colony
67% matchVery Positive90% of 263 reviews2018
Dev: Ape Apps
Windows · Mac · Linux
Build, expand, and rule a growing space colony. Explore tech, trade, and multiplayer.
Why similar: Colony Sim 54% ★, City Builder 29.1%, Strategy 8.4%, Simulation 7%, Indie 1.4%