- #1 Star Ruler
97% matchVery Positive83% of 340 reviews2010
Dev: Blind Mind Studios
Windows
Median: 30 minMean: 6.2 hrs≥1hr: 41%
Take command of a vast interstellar empire and safeguard your species from total extinction in a procedurally generated 3D galaxy (with the option to flatten it) from 1 System to 10,000+! Prove your species' ingenuity through a deep and intricate combat system where anything (from individual components on ships to the stars themselves)...
Why similar: Space 33.6%, Strategy 29.8%, RTS 24.3%, Sci-fi 7.9%, Indie 4.5%
- #2 StarDrive
96% 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: Space 33.9%, Strategy 27.1%, RTS 25.1%, Sci-fi 10%, Indie 4%
- #3 Ancient Space
96% 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: Space 34.7%, RTS 31.1%, Strategy 25%, Sci-fi 8.6%, Indie 0.6%
- #4 Star Ruler 2
95% matchVery Positive82% of 721 reviews2015
Dev: Blind Mind Studios
Windows · Linux
Median: 4.0 hrsMean: 8.9 hrs≥1hr: 93%
Massive scale 4X-RTS set in space. Control hundreds of planets, manipulate galactic politics, research numerous advanced technologies, and command thousands of units and hundreds of planets in your quest for galactic dominance.
Why similar: Space 32.7%, RTS 29.4%, Strategy 23%, Sci-fi 12%, Indie 2.9%
- #5 Planets Under Attack
94% matchMostly Positive73% of 1,248 reviews2012
Dev: Targem GamesPub: Topware Interactive
Windows · Mac
Median: 3.3 hrsMean: 9.9 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 90.3%, Space 5.8%, Indie 2.1%, Sci-fi 1.9%
- #6 Nomad Fleet
94% 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: Space 30.6%, Strategy 28.8%, RTS 24.6%, Sci-fi 10.9%, Indie 5.2%
- #7 Sid Meier's Starships
93% matchMixed50% of 2,467 reviews2015
Dev: Firaxis GamesPub: 2K
Windows · Mac
Median: 4.6 hrsMean: 7.5 hrs≥1hr: 87%
Build and command a fleet of starships and travel between planets as you explore, build, negotiate, and fight to preserve your vision for humanity.
Why similar: Space 51.5%, Strategy 32.8%, Sci-fi 15.7%
- #8 Void Destroyer
92% matchMixed59% of 352 reviews2015
Dev: Iteration 11
Windows
Median: 18 minMean: 3.3 hrs≥1hr: 30%
Combining the best of space combat and real time strategy. Victory can be tactical, a dogfight or capital ship slugging match - depending on how you decide to achieve it. Space combat on a RTS scale with space sim savagery.
Why similar: Space 36.6%, Strategy 26.3%, RTS 23.3%, Sci-fi 10.4%, Indie 3.4%
- #9 Relentless Expanse
90% 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: RTS 36.5%, Space 29.7%, Strategy 20.7%, Sci-fi 13.1%
- #10 Aeon Command
91% matchMostly Positive79% of 418 reviews2014
Dev: Bat Country Games, LLC
Windows · Mac · Linux
Median: 3.0 hrsMean: 4.6 hrs≥1hr: 79%
Aeon Command is a tug of war strategy game, where you play as one of three unique factions to help gain dominance over the Aeon Nebula! Take control of your mother ship to gather resources, produce ships and fight off the enemy mother ship. Grow stronger as you progress through the 24 mission campaign and unlock new upgrades.
Why similar: Strategy 51.1%, Space 29.4%, Sci-fi 11.4%, Indie 8.1%
- #11 Homeworld Remastered Collection
89% matchVery Positive88% of 14,093 reviews2015
Dev: Gearbox SoftwarePub: Gearbox Publishing
Windows · Mac
Median: 4.7 hrsMean: 34.4 hrs≥1hr: 85%
Experience the epic space strategy games that redefined the RTS genre. Control your fleet and build an armada across more than 30 single-player missions. Choose unit types, fleet formations and flight tactics for each strategic situation.
Why similar: Space 38.3%, RTS 33.3%, Strategy 17.9%, Sci-fi 10.5%
- #12 Dawn of Andromeda
91% matchMixed43% of 243 reviews2017
Dev: Grey Wolf EntertainmentPub: Iceberg Interactive
Windows
Median: 4.1 hrsMean: 11.7 hrs≥1hr: 86%
Dawn of Andromeda is a pausable, real-time 4X space strategy game providing an accessible, fun and immersive experience, introducing fresh ideas to the genre. Build your empire, colonize new planets, interact with other factions and characters, research technologies and build great fleets.
Why similar: Strategy 41.3%, Space 39.4%, Sci-fi 13.2%, Indie 6%
- #13 Particle Fleet: Emergence
89% matchVery Positive92% of 1,275 reviews2016
Dev: Knuckle Cracker
Windows · Mac · Linux
Median: 6.8 hrsMean: 24.9 hrs≥1hr: 76%
Build and design your own fleets and stand opposed to the Particulate in this physics/strategy/RTS/fleet hybrid. Build partially destructible and self repairing ships that interact with enemies less controlled by some scripted logic and more driven by a real time massive physics particle simulation.
Why similar: Strategy 29.7%, Space 29%, RTS 28.8%, Sci-fi 6.9%, Indie 5.6%
- #14 Stars in Shadow
88% matchMostly Positive79% of 833 reviews2017
Dev: Ashdar GamesPub: Iceberg Interactive
Windows
Median: 2.4 hrsMean: 14.5 hrs≥1hr: 66%
Stars in Shadow is a turn-based 4X strategy game and a vivid tribute to the genre classics. Compete with alien factions to explore and colonize nearby starsystems, build fleets to defend against rivals, negotiate or conquer them. Win by unifying the galaxy, through diplomacy or force.
Why similar: Space 40.2%, Strategy 38.7%, Sci-fi 14.1%, Indie 7.1%
- #15 Sins of a Solar Empire II
85% 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: Space 37.8%, RTS 32%, Strategy 19.7%, Sci-fi 10.5%
- #16 Galaxy Admirals
86% matchVery Positive86% of 331 reviews2017
Dev: Jetdogs Studios
Windows · Mac · Linux
Median: 4.5 hrsMean: 7.7 hrs≥1hr: 96%
Galaxy Admirals is a multiplayer turn-based cosmic strategy with pretty innovative and challenging gameplay. Improve your command skills with AI and conquer the whole universe by fighting with real players.
Why similar: Strategy 69.3%, Space 23.4%, Sci-fi 7.3%
- #17 Galactic Inheritors
87% 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: Space 52.7%, Strategy 29.7%, Sci-fi 12.8%, Indie 4.8%
- #18 Distant Star: Revenant Fleet
86% matchMixed66% of 298 reviews2015
Dev: Blazing Griffin
Windows · Mac · Linux
Median: 5.8 hrsMean: 7.2 hrs≥1hr: 89%
BAFTA award winning fleet-based RTS meets rogue-lite. In Distant Star: Revenant Fleet, build your fleet of up to 5 ships from a choice of 8 classes and traverse a randomly generated galaxy to defeat the Erebus Platform. NOW AVAILABLE ON MAC AND LINUX
Why similar: Space 34.5%, RTS 24.1%, Strategy 21.9%, Sci-fi 14.2%, Indie 5.3%
- #19 Reassembly
84% matchVery Positive94% of 4,079 reviews2015
Dev: Anisoptera GamesPub: Indie Voyage
Windows · Mac · Linux
Median: 5.1 hrsMean: 26.1 hrs≥1hr: 84%
A spaceship building and universe-exploration game. Collect resources, expand and grow your fleet, and conquer your personal galaxy. Stellar ambience by Peaks.
Why similar: Space 61.6%, Strategy 25.3%, Sci-fi 8.7%, Indie 4.5%
- #20 Space Reign
82% 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 35.5%, RTS 30.4%, Strategy 16.3%, Sci-fi 13.6%, Indie 4.1%
- #21 Nova Empire
82% matchMixed53% of 295 reviews2022
Dev: Gamebear Tech
Windows
Median: 1.6 hrsMean: 11.8 hrs≥1hr: 55%
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: Strategy 45.9%, Sci-fi 30.1%, Space 24%
- #22 Armada 2526 Gold Edition
83% matchMixed67% of 108 reviews2013
Dev: Ntronium GamesPub: Iceberg Interactive
Windows
Median: 24 minMean: 13.3 hrs≥1hr: 36%
Conquer the Galaxy In This ‘4x’ Strategy Game. Lead one of 18 different alien races to become a mighty pan-galactic empire. Manage your colonies, deploy your fleets and conduct research. Plot your strategy and turn your planets into mighty bastions.
Why similar: Strategy 55.8%, Space 34.4%, Indie 9.8%
- #23 Battlevoid: Harbinger
79% matchMostly Positive79% of 1,059 reviews2016
Dev: Bugbyte Ltd.
Windows · Mac · Linux
Median: 1.8 hrsMean: 11.1 hrs≥1hr: 56%
Battlevoid: Harbinger is a hard sci-fi space exploration game blending roguelike, turn-based, star map strategy, and real-time space battles. You are a young commander venturing out into enemy territories, to unknown galaxies, never knowing what you will face as you jump out from hyperspace.
Why similar: Space 55.8%, Strategy 32.1%, Sci-fi 8.1%, Indie 4.1%
- #24 Executive Assault 2
76% matchVery Positive83% of 1,751 reviews2023
Dev: Hesketh Studios Ltd
Windows · Mac
Median: 3.7 hrsMean: 8.2 hrs≥1hr: 76%
The RTS/FPS phenomenon has moved into space! Build your base on an asteroid, command fleets of starships for epic battles, pilot fighters, mine and trade resources, assemble robots to defend or assault other stations. Take sole command or share the glory as you fight for control of the quadrant.
Why similar: RTS 43.8%, Space 28.1%, Strategy 18.7%, Sci-fi 9.3%
- #25 Cosmoteer: Starship Architect & Commander
75% matchVery Positive94% of 12,715 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: Space 45.1%, Sci-fi 26.1%, Strategy 23.5%, Indie 5.4%
- #26 Sins of a Solar Empire: Trinity®
79% 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: RTS 36.8%, Space 31.4%, Strategy 18.7%, Sci-fi 13.1%
- #27 Lords of the Black Sun
81% 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 40.5%, Sci-fi 9%, Indie 5.5%
- #28 Gemini Wars
81% matchMostly Negative32% of 165 reviews2012
Dev: Camel 101
Windows · Mac
Median: 1.6 hrsMean: 4.0 hrs≥1hr: 94%
Take control of a fleet commander returned from exile, rise through the ranks of the United Space Federation forces and join an epic war across the stars.
Why similar: RTS 36.4%, Space 34.9%, Strategy 17.5%, Sci-fi 11.2%
- #29 Galactic Ruler
78% 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: Space 37.3%, RTS 32.1%, Strategy 14.9%, Sci-fi 13.5%, Indie 2.2%
- #30 Stellar Commanders
77% matchMixed58% of 101 reviews2020
Dev: Blindflug Studios AG
Windows
Conquer the stars in this straightforward multiplayer real-time strategy game from the creators of First Strike and become a Stellar Commander!
Why similar: RTS 37.2%, Space 29.5%, Strategy 16%, Sci-fi 12.1%, Indie 5.2%
- #31 Gratuitous Space Battles 2
78% matchMostly Negative39% of 309 reviews2015
Dev: Positech Games
Windows · Mac · Linux
Median: 3.0 hrsMean: 4.2 hrs≥1hr: 79%
Have you ever wanted to be admiral of a huge, sprawling space battle-fleet of your own design? Ever wanted to design a fleet of battle-cruisers so powerful they can rip all who oppose them into space-dust? Ever wanted to build a battleship with purple rotating radars and 64 engines? Well we have good news for you...
Why similar: Space 41.5%, Strategy 40.7%, Sci-fi 10.7%, Indie 7.1%
- #32 Starship Corporation
77% matchMixed42% of 557 reviews2018
Dev: Coronado GamesPub: Iceberg Interactive
Windows
Median: 4.3 hrsMean: 9.8 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: Space 41.5%, Strategy 40.5%, Sci-fi 9.6%, Indie 8.3%
- #33 Fragile Allegiance
75% matchVery Positive94% of 125 reviews2015
Dev: Gremlin InteractivePub: Alternative Software Ltd
Windows
Assemble your fleets, fill your silos with nuclear warheads, conduct research, gather resources, and wage war in a vast galaxy in this unique take on 4X Strategy. Appoint Colony Supervisors to manage your colony and deploy Spy Satellites for the ultimate in skulduggery.
Why similar: Strategy 56.8%, Space 43.2%
- #34 Starship Theory
72% matchMixed50% of 1,119 reviews2026
Dev: Reconnect Software
Windows · Mac · Linux
Median: 7.0 hrsMean: 14.9 hrs≥1hr: 75%
Starship Theory is a ship building survival game. Mine and trade to gather resources. Plan and construct new upgrades. Train and manage crew. Fight to survive.
Why similar: Space 50%, Strategy 29.4%, Sci-fi 14.9%, Indie 5.6%
- #35 Beyond the Void
76% matchMixed57% of 136 reviews2018
Dev: B2Expand
Windows · Mac
Median: 1.9 hrsMean: 10.4 hrs≥1hr: 57%
Beyond the Void is a new hybrid strategy game in space, with RTS and MOBA mechanics. It's F2P. Experience the thrill of being a Captain and lead epic space wars in 1 vs1. Design your own strategy and fleet to become the one who'll dominate the galaxy!
Why similar: Strategy 49.5%, Space 42.3%, Indie 8.2%
- #36 Interstellar Space: Genesis
73% 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: Space 45.5%, Strategy 28.9%, Sci-fi 19.7%, Indie 6%
- #37 Iron Marines
73% matchMostly Positive78% of 1,857 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: RTS 42.6%, Space 20.3%, Strategy 20.3%, Sci-fi 14%, Indie 2.9%
- #38 Starport Delta
73% 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: Strategy 35.8%, Space 24.1%, RTS 23.3%, Sci-fi 9.1%, Indie 7.7%
- #39 Haegemonia: Legions of Iron
74% matchMixed69% of 102 reviews2014
Dev: Digital RealityPub: Microids
Windows
Median: 0 minMean: 24.6 hrs≥1hr: 26%
From the makers of the award-winning Imperium Galactica 1 and 2 games, discover a powerful space-opera like RTS game.
Why similar: Space 33.2%, RTS 31.5%, Strategy 26.9%, Sci-fi 5.7%, Indie 2.6%
- #40 Lazy Galaxy
71% 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: Strategy 29.9%, Space 28.8%, RTS 25.7%, Sci-fi 8.4%, Indie 7.2%
- #41 Space Rogue
72% matchMixed64% of 451 reviews2016
Dev: Red Beat
Windows · Mac
Median: 3.5 hrsMean: 4.7 hrs≥1hr: 92%
Take on the role of a spaceship captain. Explore new worlds, and engage in intense ship-to-ship battles. Develop unique battle tactics, upgrade your ship, and recruit crew members as you fight for peace or piracy.
Why similar: Space 52.3%, Strategy 29.1%, Sci-fi 13.3%, Indie 5.3%
- #42 Shallow Space
74% 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: Space 36.5%, RTS 29.6%, Strategy 26.5%, Sci-fi 7.4%
- #43 Grey Goo
71% matchMixed68% of 4,322 reviews2015
Dev: PetroglyphPub: Six Foot
Windows
Median: 5.2 hrsMean: 8.8 hrs≥1hr: 90%
Fight for control of a frontier world. Gather resources, build your base, and command your forces in battle. Survive long enough to unleash your ultimate weapon - THE EPIC.
Why similar: RTS 52.2%, Strategy 27.2%, Sci-fi 14.3%, Space 5.9%, Indie 0.3%
- #44 8-Bit Invaders!
71% matchVery Positive83% of 444 reviews2016
Dev: Petroglyph
Windows
Median: 4.1 hrsMean: 6.1 hrs≥1hr: 78%
8-Bit Invaders! is a fast-paced, retro Real-Time Strategy game for the PC. Control the military might of the Galactic Marine Corps or Invade with the devastating power of the Cranioids! Mine, Build, and Fight your way to victory! Conquering the Multiverse was never so easy.
Why similar: RTS 50.2%, Strategy 33.3%, Sci-fi 10.6%, Indie 5.8%
- #45 Stellar Warfare
69% matchVery Positive83% of 419 reviews2021
Dev: Tense Games
Windows
Median: 42 minMean: 2.8 hrs≥1hr: 45%
Space RTS with base building and ship customization. Personal passion project. More than 200 available ships, weapons and modules to design your fleet with. Contains a small campaign, several single and multiplayer game modes and a coop game mode. Also contains Wave defense!
Why similar: RTS 35.9%, Space 31.2%, Strategy 17.1%, Sci-fi 12.4%, Indie 3.4%
- #46 Eufloria HD
70% matchVery Positive88% of 873 reviews2014
Dev: Rudolf Kremers & Alex MayPub: Omni Systems
Windows · Mac · Linux
Median: 1.1 hrsMean: 6.8 hrs≥1hr: 51%
Experience the celebrated strategy gameplay of Eufloria HD. Conquer asteroids in space and use their resources to grow floral creatures that do your bidding. Expand your empire and fight against several teams of AI opponents that all vie for the same resources and can offer fierce opposition.
Why similar: Strategy 61.9%, RTS 28.1%, Indie 10%
- #47 Iron Marines Invasion
69% matchMixed68% of 361 reviews2023
Dev: Ironhide Game Studio
Windows
Median: 2.1 hrsMean: 4.9 hrs≥1hr: 65%
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: RTS 40.2%, Space 29.1%, Strategy 17.6%, Sci-fi 13.1%
- #48 ReEarth
68% matchMostly Positive75% of 118 reviews2024
Dev: Jiangzuogongfang Shanghai Game Co.,Ltd
Windows
ReEarth is an exciting TD & (RTS) indie game. Here, you will play as humanity's last hope. You will fend off the oncoming swarms by continuously building your base and dispatching various types of units. Prepare for the challenge and save the future of humanity!
Why similar: RTS 45.2%, Space 31.4%, Strategy 23.4%
- #49 Star Command Galaxies
69% matchMixed42% of 515 reviews2024
Dev: Warballoon
Windows · Mac
Take command in the ultimate starship simulator: Star Command Galaxies. Become a Captain, recruit your crew, customize and upgrade your starship, battle alien vessels, teleport to away missions and repel boarding invaders in this real-time strategy simulation adventure from indie studio Warballoon.
Why similar: RTS 39.6%, Space 24.5%, Strategy 18.4%, Sci-fi 13.4%, Indie 4.1%
- #50 Pixel Starships
67% matchMostly Positive73% of 2,972 reviews2023
Dev: SavySoda
Windows · Mac · Linux
Median: 2.2 hrsMean: 24.4 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: Space 50.2%, Strategy 27.9%, Sci-fi 21.9%
- #51 Phantom Signal — Sci-Fi Strategy Game
70% matchVery Positive85% of 156 reviews2018
Dev: Veslo Games
Windows · Mac · Linux
Median: 4.6 hrsMean: 5.9 hrs≥1hr: 94%
Phantom Signal is a real-time sci-fi strategy game with unusual mechanics. Explore mysterious star systems and reveal the secret of the phantom signal.
Why similar: Strategy 35.3%, Space 33.6%, RTS 15.4%, Sci-fi 12.7%, Indie 3%
- #52 Annihilate The Spance
65% 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 37%, Space 34%, Strategy 15.3%, Sci-fi 10.1%, Indie 3.5%
- #53 Planet S
65% matchVery Positive92% of 2,874 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: RTS 35.3%, Space 32.1%, Strategy 19.2%, Sci-fi 10.7%, Indie 2.8%
- #54 O.R.B: Off-World Resource Base
70% matchMostly Positive79% of 107 reviews2014
Dev: Strategy First
Windows
Median: 18 minMean: 37.5 hrs≥1hr: 41%
An epic struggle for control!
Why similar: Space 34.8%, Strategy 32%, RTS 26.3%, Sci-fi 6.9%
- #55 Space Run
67% matchVery Positive85% of 2,137 reviews2014
Dev: Passtech GamesPub: Focus Entertainment
Windows · Mac · Linux
Median: 5.1 hrsMean: 7.2 hrs≥1hr: 93%
Space Run is a «real-time spaceship construction strategy game». Space Run takes the well-known Tower Defense-style gameplay and twists it, challenging you to manage and protect a spaceship and its cargo against the hazards of deep space!
Why similar: Space 52.8%, Strategy 31.2%, Sci-fi 11.7%, Indie 4.3%
- #56 Galaxy Life
63% matchVery Positive92% of 8,546 reviews2022
Dev: Phoenix Network
Windows · Linux
Median: 2.8 hrsMean: 35.3 hrs≥1hr: 65%
The universe is full of Starlings, tiny orange aliens that want to take over the galaxy. Create your own space colony, fight epic battles and discover new planets. Train your soldiers, develop your technology and create unimaginable gadgets. Enjoy this huge social game with friends!
Why similar: Strategy 67.6%, Sci-fi 32.4%
- #57 Flotilla
68% matchVery Positive82% of 241 reviews2010
Dev: Blendo Games
Windows · Mac · Linux
Median: 18 minMean: 1.8 hrs≥1hr: 28%
Lead your orbital battleships to victory in Flotilla! Fight, trade, and explore new planets in your journey through the galaxy. Featuring tactically rich 3D combat, flank and surprise the enemy from any direction. When the dust settles, generate another randomized universe for a brand new adventure!
Why similar: Space 40.4%, Strategy 35.5%, Sci-fi 24.1%
- #58 Swarm Queen
66% matchVery Positive93% of 399 reviews2017
Dev: Helmi Bastami (Flyborg.net)
Windows
Median: 4.0 hrsMean: 5.0 hrs≥1hr: 87%
A quick-to-learn but challenging real-time strategy game where you spawn an army of space-bugs that control themselves.
Why similar: RTS 42.6%, Space 24.5%, Strategy 19.8%, Sci-fi 13.1%