- #1 Galaxy Control: 3D Strategy
97% matchMixed59% of 534 reviews2016
Dev: FX Games Media
Windows · Mac
Median: 1.1 hrsMean: 29.2 hrs≥1hr: 51%
Build your base and battle with other players to control the galaxy! Galaxy Control is an ultimate space combat strategy game with fast-paced combats! Gather minerals and extract uranium, defend your base with laser towers, missile turrets, cannons, walls and mines.
Why similar: Strategy 100%
Why You'll Like It: This game shares the closest mechanical DNA with Galaxy Life, focusing on base building and defensive strategy in a space-themed setting.
- #2 Pixel Starships
96% matchMostly Positive73% of 2,968 reviews2023
Dev: SavySoda
Windows · Mac · Linux
Median: 2.2 hrsMean: 24.5 hrs≥1hr: 64%
Pixel Starships is an FTL-style online sci-fi strategy builder and management game with a competitive PVP tournament. Set in the retro galaxy, your role is to explore space, meet aliens, and develop your ship, crew and AI. The game contains deep strategic and 4x elements. PSS is community-driven.
Why similar: Wargame 30.2%, Aliens 22.5%, Base Building 21.2%, Sci-fi 13.5%, Strategy 12.6%
Why You'll Like It: It offers a similar mix of space-faring base management and tactical combat with a charming, stylized art direction.
- #3 The Spatials: Galactology
96% 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: City Builder 37.5%, Base Building 17.8%, 2.5D 17.5%, Isometric 14.5%, Strategy 7.8%
Why You'll Like It: This title combines space station management with base building and exploration, mirroring the colony-sim aspects of the seed game.
- #4 Hades' Star
95% matchMostly Positive73% of 2,671 reviews2019
Dev: Parallel Space Inc
Windows · Mac
Median: 1.6 hrsMean: 54.8 hrs≥1hr: 55%
A unique space strategy game where thousands of players participate in one shared galaxy.
Why similar: Strategy 33.8%, Sci-fi 20.3%, Tactical 18.4%, PvP 13.3%, PvE 7.7%
Why You'll Like It: A persistent space strategy game that emphasizes long-term base development and cooperative multiplayer interaction.
- #5 Spacebase Startopia
94% matchMixed56% of 652 reviews2021
Dev: Realmforge StudiosPub: Kalypso Media
Windows · Mac · Linux
Median: 3.4 hrsMean: 5.9 hrs≥1hr: 88%
Spacebase Startopia captivates with its original mixture of economic simulation and empire building strategy paired with classic RTS skirmishes and a good dose of humor.
Why similar: City Builder 30.9%, Base Building 18.8%, Strategy 15.2%, Aliens 14.3%, Sci-fi 9.4%
Why You'll Like It: It captures the humorous, lighthearted tone of Galaxy Life while focusing on managing a space station and its diverse alien inhabitants.
- #6 My Colony
94% matchVery Positive90% of 267 reviews2018
Dev: Ape Apps
Windows · Mac · Linux
Build, expand, and rule a growing space colony. Explore tech, trade, and multiplayer.
Why similar: City Builder 83.8%, Strategy 16.2%
Why You'll Like It: A deep colony-building simulation that allows players to expand across planets with a focus on resource management and strategic growth.
- #7 Project Entropy
93% matchMixed53% of 238 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: Strategy RPG 21%, Aliens 19.7%, Wargame 17.4%, Base Building 12.5%, Strategy 8.1%
Why You'll Like It: A strategy-RPG hybrid that features alien-themed combat and base development in a sci-fi universe.
- #8 Nova Empire
92% matchMixed53% of 294 reviews2022
Dev: Gamebear Tech
Windows
Median: 1.6 hrsMean: 11.9 hrs≥1hr: 56%
Build up a Space Empire and establish control of the Galaxy and the Universe! Nova Empire is a multiplayer space game in which the aim is to build your empire and conquer the galaxy in epic space battles against your rivals with other allies worldwide!
Why similar: Military 19.9%, Strategy 18.7%, Base Building 18.5%, Sci-fi 16.7%, PvP 16.4%
Why You'll Like It: A real-time strategy game centered on space exploration and large-scale fleet combat, perfect for those who enjoy the wargame elements of the seed.
- #9 Cosmoteer: Starship Architect & Commander
91% matchVery Positive94% of 12,688 reviews2022
Dev: Walternate Realities
Windows
Median: 19.5 hrsMean: 41.2 hrs≥1hr: 92%
Design and simulate the starships of your dreams! Command your ship or fleet in epic battles and manage your crew while exploring a dangerous galaxy. Play alone or with friends, test your ships in online PvP, and let your imagination reach for the stars!
Why similar: Sci-fi 60.3%, Strategy 39.7%
Why You'll Like It: This game allows for intricate ship design and tactical combat, appealing to players who enjoy the military and construction aspects of Galaxy Life.
- #10 Astro Colony
90% matchVery Positive81% of 2,634 reviews2026
Dev: Terad Games
Windows
Median: 4.5 hrsMean: 16.2 hrs≥1hr: 78%
Explore endless Universe and create the most efficient constellation of colonies. Build conveyor systems to automate production. Take care of Astronauts and their needs! Establish new colonies as part of intergalactic simulation.
Why similar: Base Building 57.6%, Strategy 22%, Crafting 20.4%
Why You'll Like It: An exploration-focused colony builder that emphasizes building automated systems and managing a space-based civilization.
- #11 SpaceInvasion
91% 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: Wargame 38.4%, Aliens 24.8%, Strategy 12.2%, Sci-fi 12.1%, PvP 8.6%
Why You'll Like It: A dedicated space wargame that focuses on colony simulation and strategic military conquest.
- #12 Space Haven
88% matchVery Positive86% of 10,816 reviews2026
Dev: Bugbyte Ltd.
Windows · Mac · Linux
Median: 4.2 hrsMean: 20.9 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: City Builder 45.7%, Base Building 26.7%, Strategy 14.3%, Sci-fi 13.3%
Why You'll Like It: This game offers a detailed approach to managing a space colony and its crew, focusing on survival and tactical base expansion.
- #13 Epic Astro Story
89% matchVery Positive87% of 55 reviews2022
Dev: Kairosoft Co.,Ltd
Windows
Battle baddies and foster interplanetary diplomacy in an epic space colony sim!
Why similar: City Builder 46.7%, Strategy RPG 43%, Sci-fi 7.9%, Strategy 2.4%
Why You'll Like It: A casual simulation game that focuses on colony management and strategic development with a distinct, charming art style.
- #14 Evil Genius 2: World Domination
89% matchMixed69% of 13,142 reviews2021
Dev: Rebellion
Windows
Median: 4.9 hrsMean: 20.1 hrs≥1hr: 86%
A satirical spy-fi lair builder where YOU are the criminal mastermind! Construct your base, train your minions, defend your operations from the Forces of Justice, and achieve global domination!
Why similar: Base Building 53.8%, Strategy 34.2%, Funny 6.8%, Cartoony 5.2%
Why You'll Like It: While set on Earth, its focus on base building, humorous tone, and managing minions makes it a great thematic match for fans of Galaxy Life.
- #15 PlanetX
87% matchMixed67% of 51 reviews2025
Dev: Giedrius Talzunas
Windows · Mac
PlanetX is a real-time strategy MMO set on a spherical planet. Players expand territories, construct buildings, and manage resources to develop their empire. The ultimate goal is to conquer the entire planet by claiming all land plots and outpacing rivals in strategic growth and domination.
Why similar: City Builder 52.5%, Strategy 17.4%, Base Building 11.5%, Sci-fi 10.2%, PvP 8.4%
Why You'll Like It: A grand-strategy city builder that tasks players with managing a colony on a distant planet with RTS elements.
- #16 Lazy Galaxy 2
86% matchMostly Positive79% of 194 reviews2022
Dev: Coldwild Games
Windows · Mac · Linux
Median: 10.3 hrsMean: 176.7 hrs≥1hr: 88%
Lazy Galaxy 2 is an idle/clicker game with base-building and RTS elements. Lead an evil (albeit lazy) alien race to conquer the universe! Expand your base, fight vicious foes, and conquer the galaxies. Acquire combat experience and convert into candy, the most precious alien resource!
Why similar: Base Building 30%, Aliens 29.8%, Strategy 17.9%, Sci-fi 14.9%, Combat 7.4%
Why You'll Like It: Combines incremental mechanics with RTS combat, providing a lighter, more casual take on space strategy.
- #17 Andromeda: Rebirth of Humanity
85% matchMixed65% of 116 reviews2021
Dev: Null Reference Games
Windows · Linux
Andromeda is a hybrid between a Space 4X and an MMO. An online universe sandbox with 2 galaxies full of planets to colonize. Build structures like Mines to generate resources to build ships and engage in fleet battles with NPCs and other players, or just sit and chat with the friendly community.
Why similar: Strategy 53.8%, Sci-fi 22.7%, PvP 14.5%, PvE 9%
Why You'll Like It: A space-sim that balances colony management with strategic economic growth and expansion.
- #18 Deep Dark Forest
82% matchVery Positive86% of 50 reviews2025
Dev: pixiangames
Windows
You will have to lead the civilization, develop the economy, enhance the technology, stabilize the people and colonize new galaxies; when encountering unknown civilizations, will you hide yourself or communicate with them in a friendly way? In this "dark forest", every decision will be crucial.
Why similar: Wargame 23.7%, Aliens 16.1%, Military 15%, Isometric 14.9%, Strategy 8.3%
Why You'll Like It: While the name suggests otherwise, this is a space-sim strategy game that focuses on management and grand-strategy elements.
- #19 Startopia
83% matchVery Positive90% of 964 reviews2013
Dev: My Little Planet Ltd
Windows
Median: 30 minMean: 9.2 hrs≥1hr: 39%
A once thriving network of space stations and planets have been left lifeless, redundant scars of the apocalypse. Into this age of darkness comes light. You will lead the way in rebuilding the network of space stations to a standard accepted by the individual alien races, attracting them to harness their expertise and research new...
Why similar: City Builder 31.9%, Aliens 20.7%, Base Building 17.3%, Funny 10.4%, Strategy 10.2%
Why You'll Like It: A management-heavy base builder that features a humorous tone and unique space-station environments.
- #20 Spacebase DF-9
84% matchOverwhelmingly Negative18% of 4,331 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: Base Building 38.1%, Sci-fi 21.7%, Strategy 19.8%, City Builder 13.2%, Isometric 7.2%
Why You'll Like It: A classic space base-building simulation that focuses on managing the needs of a growing colony.
- #21 Second Galaxy
82% matchMixed52% of 1,202 reviews2019
Dev: Zilong Game Limited
Windows
Median: 42 minMean: 9.5 hrs≥1hr: 37%
Second Galaxy is an open world sci-fi game that combines RPG and SLG elements. You can navigate hundreds of different space ships, team up with players to form alliances, and engage in intergalactic battles with other players around the world.
Why similar: Strategy 60.2%, Sci-fi 39.8%
Why You'll Like It: An open-world space strategy game that emphasizes social interaction and large-scale military operations.
- #22 Solaris
80% matchVery Positive80% of 90 reviews2021
Dev: SpacialCircumstances
Windows · Mac · Linux
Discover a space strategy game filled with conquest, betrayal and subterfuge. Build alliances, make enemies and fight your way to victory and galactic domination. Will you conquer the galaxy?
Why similar: Strategy 40.4%, Tactical 20.7%, Sci-fi 18.8%, PvP 11.9%, Combat 8.1%
Why You'll Like It: A 4X strategy game that focuses on real-time tactical combat and space exploration.
- #23 Operation: New Earth
81% matchMixed60% of 828 reviews2016
Dev: Hunted Cow Games
Windows · Mac
Median: 2.8 hrsMean: 35.4 hrs≥1hr: 64%
Operation: New Earth is an intense sci-fi multiplayer strategy game in which you must command an advanced military facility to defend Earth from a hostile alien invasion. Create an alliance, gather resources, and unlock advanced technology to level up your stronghold!
Why similar: Strategy 40%, Aliens 28.4%, Tactical 16.1%, Sci-fi 15.5%
Why You'll Like It: A sci-fi strategy game that focuses on building a base and defending it against other players in a multiplayer environment.
- #24 Subspace Discovery
79% matchMostly Positive76% of 139 reviews2023
Dev: FLICK Comp GmbH
Windows
Fly through Subspace, build your own ship, and engage in epic battles. Mine asteroids and research new technologies. Uncover the origins of the alien homeworld by solving weekly events in this Co-op PvE MMO.
Why similar: Base Building 21.6%, Sci-fi 18.5%, Tactical 16.3%, Strategy 14.8%, PvE 12.4%
Why You'll Like It: An exploration-heavy space game that features multiplayer elements and base-building mechanics.
- #25 Galaxy Reavers
81% matchMixed69% of 205 reviews2016
Dev: Good Games
Windows
This is a fun yet challenging RTS game. To survive in the vast galaxy, you need to build up your own fleet and customize your warships. You will also learn to control them efficiently in battle to defeat your enemies, conquer planets, and expand your galactic empire!
Why similar: Strategy 67.6%, Sci-fi 32.4%
Why You'll Like It: A real-time strategy game that focuses on space fleet combat and tactical positioning.
- #26 Kingdoms and Castles
78% matchVery Positive94% of 31,170 reviews2017
Dev: Lion Shield, LLC
Windows · Mac · Linux
Median: 6.1 hrsMean: 16.1 hrs≥1hr: 88%
Kingdoms and Castles is a city-building simulation game about growing a kingdom from a tiny hamlet to a sprawling city and imposing castle. Make trade agreements, alliance, and war with neighboring AI controlled kingdoms. Each villager and resource is individually simulated.
Why similar: City Builder 57.5%, Base Building 19.1%, Strategy 11.8%, Crafting 11.6%
Why You'll Like It: Though medieval, it is the gold standard for base-building and defensive strategy, sharing the core loop of building and protecting a settlement.
- #27 Pirates of Everseas
79% matchMixed64% of 133 reviews2019
Dev: Moonmana
Windows · Mac
Build a pirate empire & explore the open seas in this exciting strategy game!
Why similar: Pirates 31.9% ★, City Builder 28.7%, Strategy 9.5%, Isometric 9.4%, Cartoony 8%
Why You'll Like It: A strategy game that focuses on base building and resource management within a persistent multiplayer world.
- #28 Chicken Invaders Universe
76% matchVery Positive91% of 3,775 reviews2022
Dev: InterAction studios
Windows
Median: 54 minMean: 13.0 hrs≥1hr: 47%
A deliciously addictive core of finger-blistering shooting action, surrounded by delectable morsels of galactic exploration, spacecraft customization, and community competitions.
Why similar: Aliens 39.2%, Cartoony 35.6%, Sci-fi 16.8%, Combat 8.4%
- #29 Shakes and Fidget
77% matchVery Positive92% of 36,849 reviews2016
Dev: Playa Games GmbH
Windows · Mac
Median: 5.9 hrsMean: 227.7 hrs≥1hr: 76%
Shakes & Fidget is a hilarious fantasy role-playing satire and at the same time, an award-winning RPG! Sounds crazy? With over 50 million enthusiastic players, it ranks among the most celebrated online role-playing games worldwide!
Why similar: PvP 28.3%, Strategy 24.6%, Cartoony 18%, PvE 15.9%, Funny 13.1%
- #30 War Selection
77% matchVery Positive85% of 23,286 reviews2019
Dev: Glyph Worlds
Windows · Linux
Median: 2.6 hrsMean: 27.9 hrs≥1hr: 70%
War Selection is a compelling RTS game featuring base building, resource extraction and warfare. Evolve from a stone age tribe to a distinct industrial nation with unique game mechanics and battle for supremacy with dozens of players on a unique procedurally generated map.
Why similar: Base Building 35.2%, Military 26.9%, Strategy 22.3%, PvP 8.8%, Co-op 3.7%
- #31 Lazy Galaxy
78% matchMostly Positive79% of 204 reviews2018
Dev: Coldwild Games
Windows · Mac · Linux
Median: 3.4 hrsMean: 19.6 hrs≥1hr: 93%
Lazy Galaxy is a mix between RTS and idle/clicker game. Lead an evil (albeit lazy) alien race to conquer the universe!
Why similar: City Builder 42%, Strategy 42%, Sci-fi 16%
Why You'll Like It: An incremental strategy game that provides a low-pressure way to engage with space-themed combat and management.
- #32 Stellarcraft
73% matchVery Positive91% of 100 reviews2026
Dev: DreamStudios
Windows
Stellarcraft is a sci-fi tower defense adventure: explore alien planets, gather resources, build defenses, and fend off waves of enemies, solo or in 4-player co-op. 🚀
Why similar: Base Building 31.7%, PvP 21.5%, Strategy 20%, Sci-fi 14.3%, Co-op 12.4%
- #33 Outlive 25
72% matchVery Positive95% of 238 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: Isometric 35.3%, Base Building 21.1%, PvP 15%, Strategy 12.8%, Sci-fi 10.1%
- #34 Hero Zero - Multiplayer RPG
76% matchVery Positive82% of 3,804 reviews2016
Dev: Playata GmbH
Windows
Median: 3.6 hrsMean: 88.2 hrs≥1hr: 66%
Become a hero, build your own Hide-Out and start by saving your neighbourhood. Level up your skills, collect incredibly weird superhero gadgets, and join a superhero team to save the world!
Why similar: Strategy 47.5%, Funny 35.4%, PvP 17%
- #35 Relentless Expanse
73% matchVery Positive90% of 107 reviews2025
Dev: Cowmera Games
Windows
Capture and upgrade planets, outsmart your enemies, and conquer the galaxy! Simple yet addicting, you can play alone or outsmart your friends in this 2D top-down space RTS. Completely free, no monetization, just fun!
Why similar: Strategy 29.8%, Sci-fi 25.6%, PvP 22.7%, Tactical 18.2%, PvE 3.8%
- #36 Planet S
72% matchVery Positive92% of 2,870 reviews2023
Dev: Glimmerlight Games
Windows · Linux
Planet S is a real-time strategy game where your goal is to colonize multiple planets in a solar system to advance your civilization, build a city and supply it to grow your faction.
Why similar: City Builder 66.2%, Strategy 19.2%, Sci-fi 14.6%
- #37 Galactic Civilizations III
75% matchMostly Positive77% of 10,380 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: Aliens 46.1%, Sci-fi 15.7%, PvP 15.3%, Strategy 14.1%, PvE 8.8%
- #38 Galaxy Idle Clicker
70% matchMostly Positive75% of 1,164 reviews2025
Dev: SoehnlePub: TimeLost Gaming
Windows
Median: 10.5 hrsMean: 364.7 hrs≥1hr: 70%
Embark on an interstellar journey with Galaxy Idle Clicker! Conquer galaxies, upgrade your spaceship, and face off against a myriad of enemy ships. With engaging minigames, powerful upgrades, GIC delivers an unparalleled idle space adventure. Join the cosmic conquest today and dominate the universe!
Why similar: Sci-fi 100%
- #39 Age of Empires II: Definitive Edition
70% matchVery Positive95% of 179,516 reviews2019
Dev: World's EdgePub: Xbox Game Studios
Windows · Mac
Median: 10.9 hrsMean: 87.9 hrs≥1hr: 92%
42 Civilizations, 229 Campaign Missions, Singleplayer, Co-Op, Multiplayer, In-Game Editor, Mods, Cross-play...It is good to be the king.
Why similar: City Builder 43.2%, Strategy 22.9%, Base Building 18.7%, Tactical 7%, Isometric 5.7%
- #40 Planets Under Attack
74% matchMostly Positive73% of 1,247 reviews2012
Dev: Targem GamesPub: Topware Interactive
Windows · Mac
Median: 3.3 hrsMean: 10.0 hrs≥1hr: 86%
Play as humans or robots in a brand new sci-fi strategy adventure! Travel into the far reaches of space, through cleverly designed star constellations and variable game modes, conquering enemy planets using 15 combinable technologies.
Why similar: Strategy 97.3%, Sci-fi 2.7%
- #41 StarMade
73% matchMixed68% of 2,985 reviews2014
Dev: Schine GmbH
Windows · Mac · Linux
Median: 1.3 hrsMean: 18.8 hrs≥1hr: 54%
The ultimate space sandbox. Participate in epic fleet battles, form alliances, strive to dominate entire galaxies and harness the universe’s resources for your industrious empire or the destruction of others. Customise your experience, the universe is yours!
Why similar: Sci-fi 38.2%, Crafting 28.5%, Strategy 23.3%, Co-op 10%
- #42 Stellar Settlers: Space Base Builder
69% matchMostly Positive71% of 827 reviews2025
Dev: Tinymice EntertainmentPub: Rogue Duck Interactive
Windows · Mac · Linux
Median: 2.4 hrsMean: 3.5 hrs≥1hr: 75%
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: City Builder 56.6%, Base Building 28.5%, Strategy 14.9%
- #43 Iron Marines
71% matchMostly Positive78% of 1,853 reviews2019
Dev: Ironhide Game Studio
Windows · Mac · Linux
Median: 5.2 hrsMean: 11.4 hrs≥1hr: 87%
Real-time strategy battles in amazing sci-fi worlds! Command brave soldiers, mighty mechas and powerful aliens to face the greatest challenges in hostile alien worlds. The galaxy needs you!
Why similar: Aliens 30.2%, Military 20.4%, Strategy 16.2%, Sci-fi 15.3%, Cartoony 14%
- #44 Battle Dawn 2: Terra Reborn
71% matchMixed47% of 50 reviews2022
Dev: Zero Games StudiosPub: Gato Games
Windows
Place your colony, find an alliance of like-minded players and triumph over thousands of other players to conquer the world through strategy, tactics, diplomacy and skill in the biggest social-interaction based MMO of all time. Upgrade your colony, collect items for your Avatar and become a legend!
Why similar: Wargame 32.1%, Military 17.7%, Base Building 14.5%, Strategy 10.7%, Tactical 9.2%
- #45 Battle Nations
71% matchMostly Positive74% of 1,859 reviews2014
Dev: Madrona Games Inc
Windows · Mac · Linux
Median: 1.5 hrsMean: 26.4 hrs≥1hr: 55%
Battle Nations is back! Build your empire and lead your armies to victory! Choose from traditional troops and vehicles or unleash exotic forces like mammoths, velociraptors, sandworms, and futuristic plasma units!
Why similar: City Builder 40.2%, Base Building 21.1%, Strategy 18.2%, Funny 13.2%, Combat 7.2%
- #46 Galaxy Defense War
66% matchVery Positive97% of 145 reviews2025
Dev: Zero Space
Windows
'Galaxy Defense War' is a roguelike tower defense game where you need to select suitable galactic principles from randomly dropped heroes and equipment to form a combat-ready team to resist alien invaders.
Why similar: Aliens 36.1%, Base Building 32.4%, Strategy 31.4%
- #47 Nexus Legacy
65% matchMostly Positive76% of 160 reviews2026
Dev: Nexus Legacy Team
Windows
Rebuild civilization from a single planet in Nexus Legacy, a persistent sci-fi 4X MMO. Colonize worlds, manage resources, research technologies, command fleets, forge alliances, and fight for control of a living galaxy.
Why similar: Wargame 43.4%, Military 30%, Strategy 14.4%, Sci-fi 12.2%
- #48 Star Hunter - Infinite Lagrange
69% matchMixed57% of 1,045 reviews2021
Dev: NetEase Games
Windows
Median: 2.7 hrsMean: 91.5 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: Strategy 53.5%, Base Building 46.5%
- #49 Idle Expanse
70% matchMixed55% of 152 reviews2020
Dev: Lyrical Games LLC
Windows
A sci-fi themed incremental game which allows you to expand your capitalistic empire across the galaxy! Hire mercenaries to pillage alien planets for resources, with the singular goal of making as much money as possible as quickly as possible! Totally not a playful commentary on real Terran society.
Why similar: Aliens 36%, Strategy 21.7%, Cartoony 20.9%, Funny 12.4%, Sci-fi 9%
- #50 Space for Sale
67% matchMixed57% of 165 reviews2025
Dev: Mirage Game Studios
Windows
Space for Sale is an interplanetary, top-down Space Realty management game with a focus on problem-solving and exploration. Played either solo or with a friend, it's up to you to transform wild, uninhabited lands into bustling communities!
Why similar: Aliens 40.3%, Cartoony 24.1%, Strategy 20.9%, Funny 14.7%
- #51 Iron Marines Invasion
67% matchMixed68% of 358 reviews2023
Dev: Ironhide Game Studio
Windows
Median: 2.3 hrsMean: 5.0 hrs≥1hr: 67%
Prepare to take off, soldier! The galaxy needs your strategy! Prove your RTS expertise, explore an entire galaxy and defend it from a threatening invasion.
Why similar: Military 30.2%, Tactical 17.2%, Cartoony 15.5%, Sci-fi 12.7%, Strategy 12.5%
- #52 Galaxy Pass Station
66% matchVery Positive86% of 278 reviews2023
Dev: Galactic Workshop
Windows
Median: 2.4 hrsMean: 6.4 hrs≥1hr: 69%
Build a space station for 15 alien races! 👽 Inspect IDs, catch criminals, and manage a chaotic galactic hub. A vibrant mix of colony sim & document-checking action. Can you build the ultimate hotel?
Why similar: Base Building 45.3%, Sci-fi 29%, Funny 25.6%
- #53 Aven Colony
69% matchMostly Positive72% of 2,759 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: City Builder 57.5%, Base Building 16%, Strategy 14.4%, Sci-fi 12%
- #54 Once Upon a Galaxy
65% matchVery Positive82% of 690 reviews2025
Dev: Million Dreams Games
Windows · Mac
Median: 6.7 hrsMean: 41.0 hrs≥1hr: 73%
ONCE UPON A GALAXY is an easy to learn Card Battler with incredible strategic depth and near infinite fun! Which of your favorite characters from myth and fairy tale will you choose?
Why similar: Strategy 39.4%, PvP 35.9%, Funny 24.7%
- #55 Galcon 2: Galactic Conquest
68% matchVery Positive83% of 867 reviews2014
Dev: Hassey Enterprises, Inc.
Windows · Mac · Linux
Median: 42 minMean: 6.2 hrs≥1hr: 41%
Galcon 2 is a demolition derby in space! Send swarms of ships from planet to planet to conquer the galaxy in this fast paced multiplayer strategy game!
Why similar: Strategy 58.6%, Co-op 15.6%, PvP 13.9%, Sci-fi 11.8%
- #56 Farworld Pioneers
68% matchMostly Negative38% of 695 reviews2023
Dev: IgloosoftPub: tinyBuild
Windows
Explore an open world, sci-fi sandbox – in PVP, PVE, and co-op. Build and manage colonies on alien planets, and recruit AI survivors with unique personalities and skills. Craft, build, mine, farm, or get your electric death rifle and say hello to your neighbors.
Why similar: Base Building 27.2%, PvP 16.9%, Crafting 16.9%, Sci-fi 15.3%, Co-op 13.1%