- #1 Galactic Ruler
97% matchMixed49% of 121 reviews2022
Dev: BattleGoat Studios
Windows
Median: 3.5 hrsMean: 7.0 hrs≥1hr: 97%
Galactic Ruler offers real time strategy game play at both planetary level and in space! Lead your faction in diplomacy or conquest across a procedurally generated galactic map where any system might hold hostile enemies or resource riches. Develop advanced technologies to rule the galaxy!
Why similar: Grand Strategy 18.1% ★, Real Time Tactics 17.2%, Space Sim 17.1%, RTS 11.2%, Aliens 10.7%
- #2 Dust Fleet
96% matchMostly Positive76% of 222 reviews2023
Dev: Orbiting DiscoPub: indie.io
Windows
Assume command of a battle fleet and deploy immediately to the Dust Zone, commander. Our main food supply station has gone dark and the United Earth Nations (UEN) needs to know why in this 4X RTS space sim. Manage your ships, control space stations, and watch your back.
Why similar: Space Sim 23.2%, Real Time Tactics 19.3%, Space 10.7%, Wargame 9.1%, RTS 7.3%
- #3 Interstellar Space: Genesis
96% matchVery Positive84% of 836 reviews2019
Dev: Praxis Games
Windows
Median: 1.7 hrsMean: 11.3 hrs≥1hr: 57%
Interstellar Space: Genesis is a turn-based space 4X strategy game in which you attempt to build a thriving galactic empire. Discover mysteries among the stars, colonize worlds, and engage enemies in tactical turn-based combat on your journey to becoming the ruler of the galaxy!
Why similar: Grand Strategy 33.8% ★, Space 16%, Military 11.9%, War 10.8%, Strategy 10.7%
- #4 The Fermi Paradox
95% matchMostly Positive77% of 996 reviews2021
Dev: Anomaly Games
Windows
Median: 4.0 hrsMean: 5.5 hrs≥1hr: 75%
The Fermi Paradox is a choice-driven sci-fi narrative strategy game in which your decisions in one corner of the galaxy can upend entire civilizations in another. Guide species through millennia and help them explore the vastness of space, make contact and, perhaps, create harmony.
Why similar: Space Sim 42.1%, Aliens 22.5%, Space 12.7%, Sci-fi 9.2%, Strategy 8.3%
- #5 Sins of a Solar Empire: Trinity®
94% matchMostly Positive77% of 814 reviews2011
Dev: Ironclad Games CorporationPub: Stardock Entertainment
Windows
Median: 2.0 hrsMean: 30.8 hrs≥1hr: 59%
In Sins of a Solar Empire: Trinity, you are the leader of a civilization embroiled in a galactic war, fighting for the survival of your entire race against relentless foes.
Why similar: Space Sim 19.4%, RTS 15.5%, Military 11.2%, Aliens 9.1%, Space 7.5%
- #6 Alien Marauder
93% matchMixed63% of 341 reviews2021
Dev: Vexan Studio
Windows
“Alien Marauder” is a real-time strategy game with survival and confrontation theme. In this game, you will be the leader to a treacherous alien planet, build and defend base to survive against the vexan waves. Make the right decision!
Why similar: RTS 19.4%, Wargame 16.9%, Military 14.1%, Real Time Tactics 12.9%, Aliens 9.8%
- #7 Galactic Inheritors
94% matchMixed43% of 88 reviews2015
Dev: Crispon GamesPub: Plug In Digital
Windows
Median: 3.5 hrsMean: 3.6 hrs≥1hr: 97%
Colonise solar systems and watch them grow. Explore the galaxy to find its strategic choke points. Build up your empire and your fleet and then use the power of the media to prepare your people for the inevitable war. At the same time watch your opponents, keep on an eye on their own media and watch for threats and opportunities.
Why similar: Grand Strategy 39.6% ★, Space 31.3%, Strategy 18.7%, Sci-fi 10.4%
- #8 SpaceInvasion
92% matchMixed54% of 50 reviews2023
Dev: BITMEUP
Windows · Mac
As a commander of an imperial space force you will conquer unexplored planets, create colonies and equip your fleet for attack or defense. Strategic warfare is the focus of Spaceinvasion!
Why similar: Space Sim 19.9%, Wargame 16.2%, Real Time Tactics 12.8%, RTS 11.8%, Aliens 9.6%
- #9 Starport Delta
91% matchMostly Positive72% of 75 reviews2020
Dev: Cloudfire Studios
Windows
Build amongst the stars in Starport Delta, a light sci-fi strategy game that focuses on survival. Station Commanders across the universe will turn to you for guidance to expand, defend, and survive. Help them build a thriving station, but watch out, there are many dangers hiding in space...
Why similar: Space Sim 22.8%, RTS 15.3%, Strategy 14%, Simulation 13.4%, Space 8.9%
- #10 Polaris Sector
91% matchMostly Positive72% of 473 reviews2016
Dev: SoftWarWarePub: Slitherine Ltd.
Windows
Can anyone build an empire in a place like this? Other factions are naturally suspicious of newcomers and may wage war at the first sign of unidentified craft. Here, a natural death is an uncommon luxury.
Why similar: Grand Strategy 28% ★, Real Time Tactics 18.2%, Aliens 13.8%, Space 13.3%, Strategy 10.2%
- #11 Project Tarvotan
90% matchMixed59% of 73 reviews2015
Dev: FlagmanJeremy
Windows · Mac
Median: 3.3 hrsMean: 5.5 hrs≥1hr: 84%
Project Tarvotan allows you to explore the depths of the Milky Way and local universe. Use your wit and resources at hand to plan out your path through each sector. Your demise lurks around every decision. Can you survive long enough and restore balance to the universe?
Why similar: Strategy 42.9%, Space 30.8%, Simulation 26.2%
- #12 Periphery Online
88% matchMixed73% of 52 reviews2026
Dev: Aleksandr Nagaev
Windows
A refugee capsule lands on an uninhabited planet. You have to survive, rebuild civilization and, if possible, regain control over the Earth. One big universe, one endless pvp session for all players.
Why similar: RTS 28.3%, Grand Strategy 25.6% ★, Wargame 14.6%, Space 13.5%, Sci-fi 7.4%
- #13 Pax Nova
89% matchMixed56% of 450 reviews2020
Dev: Grey Wolf EntertainmentPub: Iceberg Interactive
Windows
Median: 4.3 hrsMean: 6.6 hrs≥1hr: 87%
A sci-fi turn-based 4X strategy game where you lead the fate of one of several factions divided between three races. Explore new worlds and new star systems filled with exciting secrets as well as dangers. Build cities, expand your influence and fight great battles on land and in space.
Why similar: Grand Strategy 35.8% ★, Military 17.3%, Space 12.5%, Building 10.7%, Strategy 9.7%
- #14 Star Trek: Infinite
89% matchMixed43% of 3,500 reviews2023
Dev: Nimble Giant EntertainmentPub: Paradox Interactive
Windows · Mac
Median: 5.4 hrsMean: 19.0 hrs≥1hr: 79%
Star Trek: Infinite is a grand strategy experience that lets you play your own Star Trek story as the leader of one of four major factions in the galaxy. Follow the specially crafted story or blaze your own trail in the first Star Trek grand strategy game.
Why similar: Grand Strategy 28% ★, Space Sim 17.6%, RTS 16.3%, Space 9.7%, Military 8.8%
- #15 Lord of Rigel
87% matchMixed68% of 109 reviews2024
Dev: Rhombus Studios
Windows
Lord of Rigel is a turn-based 4X space strategy game inspired by the classics. In a galaxy divided by two elder races, will you unite with other species or forge your own path? Navigate galactic politics and defeat threats using espionage, research, and military force. How will you shape the galaxy?
Why similar: Grand Strategy 25.6% ★, Space Sim 20.2%, Military 15.1%, Space 9.5%, War 9.1%
- #16 Space Haven
84% matchVery Positive86% of 10,886 reviews2026
Dev: Bugbyte Ltd.
Windows · Mac · Linux
Median: 4.2 hrsMean: 20.9 hrs≥1hr: 71%
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 30.9%, Space 14%, Base Building 12.7%, Building 12.3%, Strategy 8.5%
- #17 IXION
84% matchMostly Positive79% of 17,436 reviews2022
Dev: Bulwark StudiosPub: Kasedo Games
Windows
Median: 9.8 hrsMean: 30.8 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 28.1%, Building 15.1%, Base Building 14.8%, Strategy 14%, RTS 11.9%
- #18 Heavyarms Assemble: WWII
86% matchMixed66% of 86 reviews2023
Dev: XR Studio
Windows
This is a strategy game with the theme of WWII. As a battlefield commander, maintaining your army's motivation and satisfaction, promoting your generals, managing your own economy, dealing with your friends' armies, and real time grand battle. What kind of commander will you become in the process?
Why similar: Grand Strategy 17.2% ★, Wargame 14%, RTS 13%, Real Time Tactics 12.6%, Military 10.5%
- #19 Ancient Space
86% matchMixed44% of 368 reviews2014
Dev: CreativeForge GamesPub: Paradox Interactive
Windows · Mac
Median: 4.4 hrsMean: 5.1 hrs≥1hr: 89%
Ancient Space is a story driven single player real time strategy game where you take command of a fleet embarking on a scientific mission to chart undiscovered reaches of space called ‘The Black Zone’. Overcome overwhelming odds and fight for your life and the survival of your ship and its crew.
Why similar: RTS 38.5%, Space 24.3%, Strategy 18.5%, Space Sim 8.6%, Sci-fi 8.2%
- #20 Desynced
81% matchMostly Positive80% of 1,999 reviews2026
Dev: Stage Games Inc.Pub: Forklift Interactive
Windows
Median: 4.5 hrsMean: 19.1 hrs≥1hr: 77%
Desynced is a sci-fi strategy game with fully customizable units and behaviors. Gather, build, research, and explore the unknown. Alone or with friends, unveil the mystery of an AI on the edge of self-awareness and uncover the hidden truth in this blend of strategy, automation, and exploration.
Why similar: RTS 34%, Base Building 15.6%, Building 14.9%, Strategy 11.2%, Sci-fi 9.8%
- #21 StarDrive
85% matchMixed45% of 1,487 reviews2013
Dev: Zero Sum Games
Windows
Median: 2.3 hrsMean: 6.7 hrs≥1hr: 88%
As a space bear, human or any other race, venture forth into the galaxy, create custom ships, conquer new worlds, build new colonies and defend your very existence against those who would take what is yours.
Why similar: RTS 36.8%, Space 28.1%, Strategy 23.8%, Sci-fi 11.3%
- #22 Galactic Civilizations III
83% matchMostly Positive77% of 10,385 reviews2015
Dev: Stardock Entertainment
Windows
Median: 4.6 hrsMean: 17.5 hrs≥1hr: 88%
Build a civilization that will stand the test of time in the largest space-based strategy game ever! Choose from dozens of unique races and make a name for yourself across the galaxy through diplomacy, espionage, technological advances, and more.
Why similar: Grand Strategy 32.6% ★, Aliens 20.7%, Space 10.5%, War 9.5%, PvP 7.5%
- #23 Project Entropy
82% matchMixed53% of 241 reviews2024
Dev: FunPlus International AG
Windows
Welcome, commander, to Project Entropy- an ultimate Sci-Fi and role-playing game with battles in space. In this immersive MMO experience, you will command alien civilizations, conquer uncharted planets, and build Hero fleets.
Why similar: Grand Strategy 23.3% ★, Aliens 16.8%, Wargame 16.2%, Base Building 9.4%, Strategy 7.5%
- #24 Dark Moon
82% matchMixed48% of 160 reviews2025
Dev: Jujubee S.A.Pub: 101XP
Windows
Dark Moon is a survival strategy game where in order to survive you must avoid the Sun’s scorching rays and embrace the darkness. Gather resources, upgrade your mobile base, make tough moral decisions, but most importantly - don’t go into the light!
Why similar: RTS 34%, Base Building 18.6%, Space 15.6%, Strategy 10.2%, Exploration 9.6%
- #25 Exogate Initiative
81% matchMostly Positive75% of 714 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: RTS 22.4%, Aliens 15.7%, Building 11.6%, Base Building 11.3%, Space 10.3%
- #26 Space Reign
80% matchMostly Positive74% of 453 reviews2026
Dev: Propulsive Games
Windows
An indie space-sim and strategy game featuring ship and fleet combat mixed with RTS elements. Complete contracts and Claim sectors for your faction in the near-future, where resource exploiting corporations are in a state of constant conflict over territory control.
Why similar: Space Sim 30.9%, Real Time Tactics 20%, RTS 16.7%, Space 11%, War 7.8%
- #27 Sins of a Solar Empire II
79% matchVery Positive84% of 8,475 reviews2024
Dev: Ironclad Games CorporationPub: Stardock Entertainment
Windows
Median: 9.5 hrsMean: 30.9 hrs≥1hr: 85%
Battle for galactic dominance in this real-time 4X strategy game with unrivaled scale! You’ll explore, expand, exploit, and exterminate through military force, diplomacy, trade, culture, influence, and other underhanded tactics.
Why similar: RTS 31.7%, Space 21.2%, Strategy 11.7%, Isometric 9.3%, Sci-fi 8%
- #28 Primitive Society Simulator
79% matchVery Positive83% of 747 reviews2024
Dev: YSH BigDovePub: YSH Games
Windows
Median: 3.6 hrsMean: 9.3 hrs≥1hr: 72%
A colony-building game combined with grand strategy elements. Play as a tribal leader, guiding your people from the Stone Age to the Bronze Age. Survive, multiply, and compete for territory among ancient nations.
Why similar: Wargame 34.4%, War 18.9%, Building 16%, Base Building 15.6%, Strategy 8%
- #29 Ascent of Ashes
77% matchMostly Positive71% of 302 reviews2025
Dev: Vivid Storm Interactive
Windows
A colony sim set in a post-apocalyptic dystopia. Build and defend your base. Manage your survivors. Engage raiders, aliens, Remnant soldiers and other factions in real-time-with-pause combat. Or use stealth to outwit them. Explore the massive world. Survive at all costs
Why similar: Real Time Tactics 25.3%, Isometric 16.6%, Building 12.5%, Base Building 12.5%, Strategy 8.9%
- #30 Final Factory
77% matchMostly Positive79% of 305 reviews2024
Dev: Never Games Limited
Windows · Mac
Median: 2.0 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: RTS 18.5%, Base Building 16.1%, Space 14.9%, Building 14.2%, Simulation 9.8%
- #31 Future War Tactics: SOF vs Alien Invasion – Turn-Based Strategy
76% matchMixed66% of 150 reviews2025
Dev: QuadCom InteractivePub: Brightika, Inc.
Windows
Future War Tactics: SOF vs Alien Invasion - a turn-based strategy where you command SOF forces against an alien threat. Investigate disappearances, fight the invaders, and uncover the mystery. Every decision affects the fate of humanity.
Why similar: Military 33.4%, Aliens 31%, Strategy 22.4%, PvE 10.5%, Simulation 2.7%
- #32 AstronTycoon
78% matchMostly Positive73% of 56 reviews2018
Dev: ANG People s.r.o.
Windows
Take the role of an astronomer exploring the depths of the universe. Build large telescopes to explore distant stars. Discover a habitable planet or an unknown anomaly in a far corner of the galaxy. Get scientific grants, publish your results and explore new technologies.
Why similar: Simulation 50.1%, Strategy 49.9%
- #33 Surviving the Abyss
75% matchMixed65% of 1,066 reviews2024
Dev: Rocket Flair StudiosPub: Paradox Arc
Windows
Median: 2.6 hrsMean: 7.6 hrs≥1hr: 70%
Earth, 1976. You have been tasked with managing a deep-sea science facility working to perfect cloning. Explore the darkness and keep your crew alive in this hardcore survival colony builder. And beware. The darkness hides untold horrors.
Why similar: RTS 35.2%, Building 18.5%, Base Building 16.2%, Exploration 11.2%, Strategy 10.1%
- #34 Base One
78% matchMostly Negative38% of 478 reviews2021
Dev: PixFrozePub: Blowfish Studios
Windows · Mac
Base One is a space base builder game where you take control of a network of space stations and its crew's tasks and wellbeing. Maintain your resources and defenses as you navigate the wide array of dangers ahead of you!
Why similar: Space Sim 29.6%, Isometric 15.5%, Military 13.3%, Building 9.6%, Space 7.4%
- #35 Space Station Tycoon
76% matchMixed61% of 216 reviews2023
Dev: Lunheim Studios
Windows
Median: 2.9 hrsMean: 8.3 hrs≥1hr: 80%
Create a thriving space station in a lost sector. Face thrilling challenges head-on, from pirate raids to asteroid impacts, as you lead your company to new heights.
Why similar: Space Sim 35.9%, Space 17.5%, Building 14.1%, Base Building 12.3%, Strategy 7.9%
- #36 Annihilate The Spance
73% matchVery Positive91% of 354 reviews2025
Dev: Skyglow Softworks
Windows
An RTS base builder with huge battles, constant production, and autonomous ships. The Spance approaches, a vast and mysterious storm at the edge of humanity. Who shall claim its riches? Brave the perils of the depths in a story-rich singleplayer campaign with numerous distinct factions and bosses.
Why similar: RTS 26.2%, Space 13.6%, Base Building 12.1%, Military 11.4%, War 11.3%
- #37 Stranded: Alien Dawn
73% matchVery Positive84% of 11,117 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: Base Building 34.6%, Strategy 18.9%, Simulation 18.8%, Combat 8.4%, Sci-fi 7%
- #38 StarFringe: Adversus
75% matchMixed64% of 233 reviews2023
Dev: CasualogicPub: Conglomerate 5
Windows
This is the story about the beginning of the conquest of outer space by earthlings. It began as a global idea of saving mankind from hunger and lack of resources, and ended as a brutal and merciless war in space far from Earth.
Why similar: RTS 19.7%, Grand Strategy 15.9% ★, Wargame 11.9%, Real Time Tactics 10.1%, Aliens 9.4%
- #39 Terra Invicta
71% matchVery Positive81% of 9,434 reviews2026
Dev: Pavonis InteractivePub: Hooded Horse
Windows
Median: 9.6 hrsMean: 52.2 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: Grand Strategy 37.8% ★, Military 19.2%, War 15.3%, Space 11.1%, Strategy 8.5%
- #40 Dead Reckoning: The Long Drift
70% matchVery Positive81% of 75 reviews2026
Dev: Garan LornPub: Selenodrome
Windows · Linux
A dream among the stars — or a nightmare. 1,000 colonists in the dark between stars. Every pragmatic decision rewrites who they are. Discover what your choices mean for humanity, for better or worse.
Why similar: Space 36.2%, Strategy 22%, Simulation 21.1%, Sci-fi 20.8%
- #41 Dune: Spice Wars
70% matchMostly Positive79% of 13,441 reviews2023
Dev: Shiro GamesPub: Funcom
Windows
Median: 6.8 hrsMean: 16.4 hrs≥1hr: 85%
A 4X real-time strategy game from the developers of the critically acclaimed Northgard. Set in Frank Herbert’s groundbreaking Dune universe, you must lead your faction and battle for control and dominance over the harsh desert planet of Arrakis.
Why similar: Grand Strategy 22.1% ★, RTS 16.9%, Real Time Tactics 14.7%, War 8.9%, Building 7.3%
- #42 Star Traders: 4X Empires
74% matchMixed63% of 82 reviews2014
Dev: Trese Brothers
Windows · Mac · Linux
Median: 1.6 hrsMean: 2.8 hrs≥1hr: 94%
Take command of humanity’s last survivors and rebuild an empire in the stars. In this immersive turn-based strategy game, you will have to fight to protect your people, control rival factions, and unlock lost technology.
Why similar: Grand Strategy 31.4% ★, Aliens 15.3%, Military 13.8%, Space 10.6%, Building 10.1%
- #43 Horizon
74% matchMixed59% of 477 reviews2014
Dev: L3O Interactive
Windows
Median: 2.0 hrsMean: 5.0 hrs≥1hr: 92%
Horizon is a turn-based space strategy game of galactic exploration and conquest in which you are in control of humanity’s destiny. You will explore deep space, find new frontiers and discover alien artifacts hidden on long-abandoned planets.
Why similar: Grand Strategy 39.2% ★, Wargame 16.3%, Space 13.9%, Strategy 8.8%, Simulation 7.7%
- #44 Solar Nations 2
67% matchVery Positive88% of 467 reviews2025
Dev: Flomgus Games
Windows
In this Grand Strategy game, you take control of the Solar System's Great Powers in 2092 and weather the storm of change as you navigate the uncertain waters of the future. Control the greatest military forces in the world and wage wars on an epic scale: outer space is yours to conquer!
Why similar: Grand Strategy 30.2% ★, Wargame 17%, Military 14.1%, Space 10.4%, War 8.6%
- #45 Unclaimed World
71% matchMixed50% of 216 reviews2016
Dev: Refactored Games
Windows
Median: 4.1 hrsMean: 5.4 hrs≥1hr: 95%
Manage interstellar pioneers and their descendants in this detailed sci-fi colony sim. Centuries after planetfall, colonists are still struggling to gain foothold on their lush and alien planet. You settle on the frontier by carefully managing resources, production and different personalities.
Why similar: Simulation 44.5%, Strategy 41.7%, Sci-fi 13.7%
- #46 NEBULOUS: Fleet Command
67% matchVery Positive81% of 4,297 reviews2022
Dev: Eridanus IndustriesPub: Hooded Horse
Windows
Median: 5.1 hrsMean: 31.7 hrs≥1hr: 77%
Take command of your hand-tailored fleet of space warships and use realistic radar, electronic warfare, advanced movement controls in 3D space, and precision targeting to outmaneuver and outwit your opponents in a simulation-heavy tactical space game like no other.
Why similar: Grand Strategy 29.4% ★, RTS 19.5%, Military 16.8%, War 12.4%, Space 9.2%
- #47 Into the Stars
72% matchMixed41% of 538 reviews2016
Dev: Fugitive GamesPub: Iceberg Interactive
Windows
Median: 3.2 hrsMean: 4.3 hrs≥1hr: 80%
Take the role of Captain in this Space Survival Simulation as you explore a massive star system in search of a new home for humanity. Outfit your ship, hand pick your crew and set off on a journey through an open-world where you must scavenge resources, shelter civilians and outrun a hostile alien force.
Why similar: Space 43.8%, Simulation 28.4%, Strategy 27.7%
- #48 Star Hunter - Infinite Lagrange
69% matchMixed57% of 1,049 reviews2021
Dev: NetEase Games
Windows
Median: 2.7 hrsMean: 91.8 hrs≥1hr: 61%
In a remote corner of the Milky Way, you, a star hunter, will control a fleet, take on a wide variety of bounty contracts and missions, and venture into the vastness of space. You will hunt for mysterious items for your employers and explore specific targets in uncharted territory.
Why similar: Space Sim 34%, Space 22%, Strategy 18.7%, Base Building 13.1%, Simulation 12.3%
- #49 Outworld Station
65% matchVery Positive85% of 799 reviews2026
Dev: Trickjump Games Ltd
Windows
Median: 4.1 hrsMean: 10.8 hrs≥1hr: 69%
Take the helm as a new Station Commander and exploit an alien star system in this stunning space-station factory automation game. Amass resources and construct starships using increasingly advanced manufacturing and expand your station in a hostile universe.
Why similar: RTS 28.9%, Space 20.1%, Base Building 17.1%, Simulation 10.9%, Strategy 9.1%
- #50 Starminer
65% matchMostly Positive75% of 1,757 reviews2026
Dev: CoolAndGoodGames
Windows
Median: 6.3 hrsMean: 13.6 hrs≥1hr: 82%
Design and build a massive interstellar fleet in this simulation sandbox. Strip space of its minerals for profit, but stay alert: your greed attracts the alien. Master deep base-building and deploy warships to protect your empire in immersive real-time space.
Why similar: Space Sim 31%, RTS 19.1%, Aliens 14%, Space 11.6%, Base Building 7.8%
- #51 Shallow Space
72% matchMostly Negative25% of 231 reviews2015
Windows · Mac · Linux
Median: 3.8 hrsMean: 5.0 hrs≥1hr: 95%
Construct your Taskforce and lead your forces to domination in the ultimate Fleet Warfare RTS!
Why similar: RTS 35.2%, Space 24.6%, Strategy 18.9%, Simulation 14.6%, Sci-fi 6.8%
- #52 Lords of the Black Sun
73% matchMostly Negative20% of 396 reviews2014
Dev: Arkavi StudiosPub: Iceberg Interactive
Windows
Median: 3.6 hrsMean: 4.6 hrs≥1hr: 90%
Take command of one race to join the struggle for supremacy in the galaxy. As the leader of your empire you are tasked with exploring the stars, colonizing new worlds, managing your empire and conquering whoever dares to oppose you.
Why similar: Space 45%, Strategy 42.8%, Sci-fi 12.2%
- #53 IFO
68% matchVery Positive84% of 109 reviews2022
Dev: Lucas Le Slo
Windows · Mac
A spaceship simulator for aliens, an ever-changing rule discovery puzzle for humans.
Why similar: Aliens 31.7%, Space Sim 20.6%, Space 12.8%, Strategy 10.2%, Sci-fi 9.6%
- #54 My Colony
68% matchVery Positive90% of 270 reviews2018
Dev: Ape Apps
Windows · Mac · Linux
Build, expand, and rule a growing space colony. Explore tech, trade, and multiplayer.
Why similar: Simulation 51.5%, Strategy 48.5%
- #55 PeriAreion
71% matchMixed41% of 64 reviews2015
Dev: Explorasaurus Studios
Windows · Mac
Median: 4.8 hrsMean: 7.2 hrs≥1hr: 97%
Prepare for the ultimate test of survival! Do you have the skill necessary to build and manage the first sustainable extraterrestrial colony, or will your colonists become mere footnotes in the history of human space exploration? Their lives and legacies are in your hands!
Why similar: Strategy 42.8%, Simulation 40.8%, Space 16.4%
- #56 Lightracer Spark
66% matchVery Positive84% of 1,006 reviews2023
Dev: Smartmelon Games
Windows
Lightracer Spark is a Sci-Fi Narrative game. You are an amender from a high civilization, descending to various extraterrestrial worlds. Guide living beings to prosperity, or nip a spark in the bud. Accumulate strength through choices and strategies to grasp the rise and fall of all civilizations.
Why similar: Space Sim 42%, Space 20.4%, Aliens 16.9%, Sci-fi 12.1%, Strategy 8.6%
- #57 Dyson Sphere Program
64% matchOverwhelmingly Positive97% of 91,085 reviews2021
Dev: Youthcat StudioPub: Gamirror Games
Windows
Median: 13.1 hrsMean: 75.3 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: Space 21%, Space Sim 19.7%, Base Building 17.8%, Building 14.9%, Simulation 8.3%
- #58 Outlive 25
64% matchVery Positive95% of 247 reviews2026
Dev: Continuum EntertainmentPub: CriticalLeap
Windows
Build your base, prepare your troops, and face your most epic battle yet in this old-school real-time strategy game. Choose between two factions, test your skills in three epic campaigns and engage in online battles with up to 16 players simultaneously.
Why similar: RTS 22.5%, Space Sim 21.6%, Isometric 15.1%, Building 6.9%, Base Building 6.9%
- #59 Nomad Fleet
69% matchMixed66% of 214 reviews2016
Dev: Autarca
Windows · Mac · Linux
Median: 3.2 hrsMean: 3.2 hrs≥1hr: 79%
Nomad Fleet is a RTS game where you must lead the last remnants of Mankind to safety after a mysterious alien race has hunted them near extinction. Lead a fully armed fleet of battleships, carriers and fighters through a series of randomized scenarios and encounters where they must fight for their survival while scavenging for resources,...
Why similar: RTS 36.4%, Space 25.7%, Strategy 25.5%, Sci-fi 12.4%
- #60 The Sentient
70% matchMostly Negative39% of 83 reviews2016
Dev: Uncaged Studios
Windows
Play as an A.I tasked with helping mankind explore the vastness of space. Customize your ship, recruit a crew, battle alien vessels, research new technology and explore randomly generated universes.
Why similar: Space Sim 44.1%, Space 18.9%, Strategy 18.8%, Simulation 18.2%