- #1 Sins of a Solar Empire II
96% matchVery Positive84% of 8,167 reviews2024
Dev: Ironclad Games CorporationPub: Stardock Entertainment
Windows
Median: 9.5 hrsMean: 28.7 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 33.7%, 4X 15% ★, RTS 13%, Strategy 10.2%, Sci-fi 6.8%
Why You'll Like It: Blends real-time strategy with 4X elements, focusing on large-scale fleet management and tactical combat in space.
- #2 EVE Online
97% matchMostly Positive74% of 38,402 reviews2010
Dev: CCP
Windows · Mac
Median: 3.0 hrsMean: 136.7 hrs≥1hr: 73%
Over 20 years of legendary space battles! Explore a massive living universe of danger and opportunity in a challenging and highly rewarding space adventure. Fight, trade, build, and connect with a universe driven and shaped directly by players.
Why similar: Space 34.7%, Massively Multiplayer 29.1%, Strategy 9%, Sci-fi 8.5%, PvP 6.4%
Why You'll Like It: Offers the most comprehensive persistent space MMO experience with deep economic and strategic layers similar to the shared galaxy of Hades' Star.
- #3 Stellaris
96% matchVery Positive86% of 191,915 reviews2016
Dev: Paradox Development StudioPub: Paradox Interactive
Windows · Mac · Linux
Median: 19.5 hrsMean: 142.4 hrs≥1hr: 89%
Explore a galaxy full of wonders in this sci-fi grand strategy game from Paradox Development Studios. Interact with diverse alien races, discover strange new worlds with unexpected events and expand the reach of your empire. Each new adventure holds almost limitless possibilities.
Why similar: Space 46.2%, 4X 21% ★, Strategy 12.7%, Sci-fi 11.4%, Great Soundtrack 3.9%
Why You'll Like It: Provides a grand strategy experience focused on building a space-faring empire with complex diplomacy and persistent exploration.
- #4 Homeworld Remastered Collection
95% matchVery Positive88% of 13,977 reviews2015
Dev: Gearbox SoftwarePub: Gearbox Publishing
Windows · Mac
Median: 4.6 hrsMean: 34.0 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 45.9%, RTS 18.1%, Strategy 12.5%, Sci-fi 9.1%, Great Soundtrack 5.7%
Why You'll Like It: A classic tactical space RTS that excels in 3D fleet positioning and strategic unit management.
- #5 Distant Worlds: Universe
94% matchMostly Positive75% of 1,845 reviews2014
Dev: Code ForcePub: Slitherine Ltd.
Windows
Median: 2.9 hrsMean: 23.9 hrs≥1hr: 59%
Distant Worlds is a vast, pausable real-time 4X space strategy game. Experience the full depth and detail of turn-based strategy, but with the simplicity and ease of real-time, and on the scale of a massively-multiplayer online game.
Why similar: Space 41.1%, 4X 26.7% ★, Strategy 15.4%, Sci-fi 9%, RTS 7.1%
Why You'll Like It: A massive, deep space simulation that allows for complex automation and strategic control over a sprawling galactic empire.
- #6 X4: Foundations
93% matchMostly Positive80% of 27,985 reviews2018
Dev: Egosoft
Windows · Linux
Median: 5.1 hrsMean: 94.2 hrs≥1hr: 80%
Your journey to building a vast space empire begins behind the controls of a single ship. Explore the stars, trade goods, fight battles, build stations, buy and equip ships, and command fleets in a living, fully simulated universe that reacts to your decisions.
Why similar: Space 53.3%, 4X 20.2% ★, Strategy 12.1%, Sci-fi 11.4%, Atmospheric 2.9%
Why You'll Like It: Features a persistent, living economy and galaxy where you can build stations and command fleets in a first-person space sim environment.
- #7 Star Ruler 2
94% matchVery Positive82% of 719 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 37.5%, 4X 20.9% ★, Strategy 15.4%, RTS 15.3%, Sci-fi 9.9%
Why You'll Like It: A complex 4X space strategy game that allows for deep customization of ships and large-scale galactic management.
- #8 ENDLESS™ Space 2
92% matchVery Positive83% of 22,789 reviews2017
Dev: AMPLITUDE Studios
Windows · Mac
Median: 6.3 hrsMean: 25.9 hrs≥1hr: 87%
ENDLESS™ Space 2 is a Strategic Space Opera, featuring the compelling “just one more turn” gameplay, set in the mysterious ENDLESS™ Universe. As the leader of your civilization, will you impose your vision and build the greatest stellar empire?
Why similar: Strategy 74.5%, Space 15.7%, 4X 4.6% ★, Sci-fi 2.6%, Multiplayer 1%
Why You'll Like It: A polished 4X strategy game that emphasizes faction-specific mechanics and deep research trees in a sci-fi setting.
- #9 Pixel Starships
91% matchMostly Positive73% of 2,914 reviews2023
Dev: SavySoda
Windows · Mac · Linux
Median: 2.3 hrsMean: 24.8 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 30.5%, Massively Multiplayer 28.5%, 4X 15.4% ★, Strategy 9.9%, Sci-fi 9.6%
Why You'll Like It: A micro-management space strategy game that focuses on ship layout and crew management.
- #10 Terra Invicta
89% matchVery Positive81% of 9,023 reviews2026
Dev: Pavonis InteractivePub: Hooded Horse
Windows
Median: 9.5 hrsMean: 51.4 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: 4X 36.8% ★, RTS 24.4%, Strategy 21.2%, Tactical 17.6%
Why You'll Like It: A hard sci-fi grand strategy game that focuses on long-term geopolitical and space-based planning against an alien threat.
- #11 Cosmoteer: Starship Architect & Commander
89% matchVery Positive95% of 12,431 reviews2022
Dev: Walternate Realities
Windows
Median: 19.3 hrsMean: 40.4 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 43.5%, Sci-fi 18.3%, Strategy 13.3%, Online Co-Op 10.7%, Multiplayer 7%
Why You'll Like It: Allows for intricate ship design and tactical fleet combat, mirroring the customization found in Hades' Star.
- #12 VEGA Conflict
91% matchMixed58% of 4,985 reviews2015
Dev: KIXEYE
Windows · Mac
Median: 2.7 hrsMean: 90.8 hrs≥1hr: 63%
Stake your claim, command your fleets, and wage epic war in space.
Why similar: Space 32.3%, Massively Multiplayer 29%, RTS 10.3%, Strategy 9.1%, Sci-fi 5.5%
Why You'll Like It: A real-time strategy game focused on persistent space warfare and fleet customization.
- #13 Star Conflict
90% matchMostly Positive73% of 15,084 reviews2013
Dev: Star Gem Inc.Pub: Gaijin Network Ltd
Windows · Mac · Linux
Median: 2.0 hrsMean: 34.3 hrs≥1hr: 63%
Star Conflict is an action-packed, massively multiplayer space simulation game that puts players in the role of elite pilots engaging in a widespread interplanetary skirmish. The whole world for PVP and PVE!
Why similar: Massively Multiplayer 53.5%, Online Co-Op 15.7%, Sci-fi 15.5%, PvE 11.4%, Atmospheric 3.9%
Why You'll Like It: Provides fast-paced space combat with MMO elements and progression systems that feel familiar to Hades' Star players.
- #14 NEBULOUS: Fleet Command
88% matchVery Positive81% of 3,819 reviews2022
Dev: Eridanus IndustriesPub: Hooded Horse
Windows
Median: 4.9 hrsMean: 30.4 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: RTS 31.7%, Strategy 23.1%, Tactical 19.8%, Co-op 12.8%, Multiplayer 12.7%
Why You'll Like It: Focuses on realistic, tactical ship-to-ship combat with a heavy emphasis on sensor management and positioning.
- #15 Avorion
85% matchVery Positive90% of 14,288 reviews2020
Dev: Boxelware
Windows · Mac · Linux
Median: 18.6 hrsMean: 98.8 hrs≥1hr: 90%
A procedural co-op space sandbox where players can build their own space ships out of dynamically scalable blocks. Fight epic space battles, explore, mine, trade, wage wars and build your own empire to save your galaxy from being torn apart by an unknown enemy.
Why similar: Space 67.4%, Sci-fi 18.6%, PvE 14%
Why You'll Like It: A persistent space sandbox that combines ship building with exploration and fleet management in a procedurally generated galaxy.
- #16 Second Galaxy
87% matchMixed52% of 1,200 reviews2019
Dev: Zilong Game Limited
Windows
Median: 36 minMean: 9.4 hrs≥1hr: 38%
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: Massively Multiplayer 43.7%, Space 37.8%, Strategy 11.6%, Sci-fi 7%
Why You'll Like It: Combines open-world space exploration with strategy and MMO elements in a persistent universe.
- #17 Istrolid
84% matchVery Positive87% of 2,684 reviews2016
Dev: treeform
Windows · Mac · Linux
Median: 1.0 hrsMean: 10.8 hrs≥1hr: 50%
In Istrolid you design your own unique spaceships from a large number of parts to fit your strategy and play style. With no set units or factions you are free to create a fleet where each ship has its own balanced strengths and weaknesses, from basic fighters and bombers to hulking battleships and speedy destroyers.
Why similar: Space 47.2%, Strategy 18.8%, RTS 15.8%, Sci-fi 7.7%, Multiplayer 7.7%
Why You'll Like It: An accessible RTS that allows players to design their own ships and engage in tactical multiplayer battles.
- #18 Space Pirates And Zombies 2
84% matchMostly Positive79% of 2,826 reviews2017
Dev: MinMax Games Ltd.
Windows · Mac · Linux
Median: 4.6 hrsMean: 13.5 hrs≥1hr: 81%
Design and then improve the ultimate mothership. Explore a persistent living galaxy populated by 200 unique captains that can do everything you can do. Survive the zombie infection and then fight them back. Make allies and start your own faction. Build your empire. Also includes Sandbox Mode.
Why similar: Space 70.7%, Strategy 19.1%, Sci-fi 8.4%, Indie 1.8%
Why You'll Like It: Features a persistent, evolving galaxy where factions compete for territory and resources through tactical combat.
- #19 Planetary Annihilation: TITANS
83% matchVery Positive85% of 14,430 reviews2015
Dev: Planetary Annihilation Inc
Windows · Mac · Linux
Median: 3.9 hrsMean: 17.4 hrs≥1hr: 73%
Wage war across entire solar systems with massive armies at your command. Annihilate enemy forces with world-shattering TITAN-class units, and demolish planets with massive super weapons!
Why similar: Space 26.8%, RTS 22.9%, Strategy 13.7%, Sci-fi 9%, Online Co-Op 8.4%
Why You'll Like It: A large-scale RTS that features planetary-level combat and massive fleet maneuvers.
- #20 FTL: Faster Than Light
82% matchOverwhelmingly Positive95% of 77,568 reviews2012
Dev: Subset Games
Windows · Mac · Linux
Median: 7.1 hrsMean: 33.7 hrs≥1hr: 89%
This "spaceship simulation roguelike-like" allows you to take your ship and crew on an adventure through a randomly generated galaxy filled with glory and bitter defeat.
Why similar: Space 59.2%, Strategy 16.1%, Sci-fi 14.3%, Tactical 7.2%, Indie 1.7%
Why You'll Like It: While smaller in scale, it captures the intense tactical ship management and resource allocation required in space combat.
- #21 Galactic Civilizations III
82% matchMostly Positive77% of 10,370 reviews2015
Dev: Stardock Entertainment
Windows
Median: 4.6 hrsMean: 17.4 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: Space 32.7%, 4X 23.3% ★, Sci-fi 12.1%, Strategy 11.9%, PvP 8.4%
Why You'll Like It: A classic 4X strategy game that focuses on diplomacy, research, and expanding a space empire.
- #22 Supreme Commander: Forged Alliance
81% matchOverwhelmingly Positive97% of 14,047 reviews2011
Dev: Gas Powered GamesPub: Square Enix
Windows
Median: 6.8 hrsMean: 48.5 hrs≥1hr: 75%
The last days of man are at hand.. Two years after the Infinite War the once great warring nations now lie in ruins, and humanity’s hope for a brighter future is nothing but a bitter memory. A new, seemingly unstoppable enemy, supported by the zealots of The Order, now seeks to eradicate mankind: UEF, Aeon Loyalist, and Cybran alike.
Why similar: RTS 37%, Strategy 26.2%, Sci-fi 13.8%, Multiplayer 7.7%, Space 5.9%
Why You'll Like It: The gold standard for large-scale RTS combat, offering strategic depth and massive unit counts.
- #23 Void Destroyer 2
80% matchVery Positive80% of 664 reviews2020
Dev: Iteration 11
Windows
Median: 2.4 hrsMean: 14.5 hrs≥1hr: 74%
Start with nothing... End with everything! All you have is a basic ship, barely fit for combat, with it you'll start your journey and empire. A open world space sandbox, inspired by and expanding the classics.
Why similar: Space 36.7%, 4X 22.1% ★, RTS 16.3%, Strategy 12.8%, Sci-fi 10.8%
Why You'll Like It: A hybrid space sim and RTS that allows for both direct piloting and strategic fleet command.
- #24 Nexus - The Jupiter Incident
81% matchVery Positive86% of 1,053 reviews2007
Dev: Mithis GamesPub: HandyGames
Windows
Median: 1.9 hrsMean: 12.1 hrs≥1hr: 64%
Ambitious megacorporations monopolize the conquest of space and the colonization of the solar system. At the very edge of the solar system, the companies make a discovery that will shift the technological advantage and upset the balance. And so a new conflict is born: "The Jupiter Incident."
Why similar: Space 48.3%, Strategy 17.2%, RTS 13.7%, Sci-fi 11.5%, Tactical 5.3%
Why You'll Like It: A tactical space combat game that prioritizes ship-to-ship maneuvering and specialized weapon systems.
- #25 Starpoint Gemini Warlords
79% matchMostly Positive73% of 3,569 reviews2017
Dev: Little Green Men Games
Windows
Median: 4.1 hrsMean: 11.0 hrs≥1hr: 88%
Strategy from the front lines! Starpoint Gemini Warlords combines 3rd person capital spaceship combat with 4X strategy and RPG gameplay elements. Build mighty war fleets and send them into battle or lead them into combat yourself. Become the Warlord and conquer the Gemini system!
Why similar: Space 50.4%, 4X 21.8% ★, Strategy 14.2%, Sci-fi 12.4%, Indie 1.2%
Why You'll Like It: Blends space simulation with 4X strategy elements, allowing players to build a fleet and conquer sectors.
- #26 Nova: Space Armada
76% matchMixed52% of 221 reviews2024
Dev: STONE3 PTE. LTD.
Windows
An exceptional sci-fi strategy game based on space adventure as its core.
Why similar: Massively Multiplayer 30.3%, Space 20%, 4X 19.1% ★, Strategy 11.2%, Sci-fi 9.5%
- #27 Gratuitous Space Battles
79% matchMostly Positive71% of 874 reviews2009
Dev: Positech Games
Windows · Mac · Linux
Median: 2.8 hrsMean: 5.1 hrs≥1hr: 81%
The first ever auto-battler game, from way back in 2009Who needs backstory? Who needs resource-gathering? Diplomacy is so last year. Gratuitous Space Battles cuts right to the chase of sci-fi strategy games, and deals with large, completely unjustified space battles between huge opposing space fleets.
Why similar: Space 45.2%, Strategy 18.6%, Sci-fi 13.3%, RTS 10.4%, Tactical 5.1%
Why You'll Like It: Focuses on the strategic setup and fleet design aspect of space combat rather than direct unit control.
- #28 Objects in Space
78% matchMixed52% of 612 reviews2019
Dev: Flat Earth GamesPub: 505 Games
Windows · Mac · Linux
Median: 2.2 hrsMean: 6.6 hrs≥1hr: 71%
Objects in Space is a retro space game centred on 2D point-and-click stealth action in a massive open world. Players have their own customisable ships and can meet people, become a trader, bounty hunter, explorer, scavenger or all of them at once.
Why similar: Space 63.2%, Strategy 25.8%, Sci-fi 7.9%, Indie 3.1%
Why You'll Like It: A hard sci-fi space game that emphasizes sensor-based tactical combat and ship maintenance.
- #29 Galcon 2: Galactic Conquest
78% matchVery Positive83% of 865 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: Space 26.1%, Strategy 20%, Massively Multiplayer 12.2%, RTS 9.4%, Multiplayer 7.6%
- #30 Star Hunter - Infinite Lagrange
76% matchMixed57% of 1,011 reviews2021
Dev: NetEase Games
Windows
Median: 2.4 hrsMean: 92.7 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: Massively Multiplayer 43.7%, Space 35.6%, Strategy 17.2%, Multiplayer 3.6%
- #31 Gangs of Space
77% matchMostly Positive76% of 430 reviews2017
Dev: Little Big MMO
Windows · Mac · Linux
Median: 1.1 hrsMean: 281.6 hrs≥1hr: 53%
Gangs of Space is a massively-multiplayer Rogue Shmup where Gangs of players compete for the conquest of the galaxy.
Why similar: Massively Multiplayer 52.1%, Space 31.4%, Online Co-Op 6.4%, Sci-fi 6%, Great Soundtrack 2.8%
- #32 The Infinite Black
77% matchMixed66% of 212 reviews2016
Dev: SpellbookPub: www.Spellbook.com
Windows · Mac · Linux
Median: 5.5 hrsMean: 83.9 hrs≥1hr: 73%
Fleet up with thousands of players in The Infinite Black -- The wildly popular online space combat and adventure game! Command massive spaceships, form powerful corporations, and battle it out in never-ending intergalactic warfare!
Why similar: Massively Multiplayer 50.4%, Space 31.7%, Strategy 16.2%, Indie 1.7%
- #33 Space Aces
70% matchMixed63% of 350 reviews2026
Dev: DewEnforcerPub: Space Aces
Windows
Space Aces is an indie space shooter that plunges you into an online universe full of action, strategy, and fierce competition. Step into the cockpit and evolve from a rookie pilot into the most feared Ace in the galaxy!
Why similar: Massively Multiplayer 50.6%, Space 32%, Sci-fi 6.1%, PvE 6%, PvP 5.3%
- #34 Galaxy Control: 3D Strategy
75% matchMixed59% of 530 reviews2016
Dev: FX Games Media
Windows · Mac
Median: 1.1 hrsMean: 25.0 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: Massively Multiplayer 50.8%, Space 29.9%, Strategy 19.3%
- #35 Beyond the Void
75% matchMixed57% of 136 reviews2018
Dev: B2Expand
Windows · Mac
Median: 1.8 hrsMean: 10.4 hrs≥1hr: 56%
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: Space 47.2%, Strategy 32.1%, PvP 9.5%, Multiplayer 8.3%, Indie 2.8%
- #36 Space Wars: Interstellar Empires
74% matchMixed66% of 241 reviews2017
Dev: Desert Owl Games LLCPub: ToHeroes Game Studios LLC
Windows · Mac
Median: 1.2 hrsMean: 17.6 hrs≥1hr: 54%
Helm your own ship, battle for supremacy in a multi-faction war, and conquer the cosmos in this science fiction turn-based strategy game. Select from more than 100+ diverse star ships and fight for territory across a 2D hex-based grid.
Why similar: Massively Multiplayer 62.3%, Strategy 19.2%, Tactical 17.5%, Indie 1%
- #37 Gods and Idols
73% matchMixed70% of 754 reviews2016
Dev: JatteGames
Windows
Median: 1.0 hrsMean: 14.4 hrs≥1hr: 48%
Take the role of a newly ascended deity in Gods and Idols. Carve your place among the stars in an open, dynamic, and massive MMORTS universe. Command the powers of the cosmos, form alliances, and use your worshipers as instruments to further your goals.
Why similar: Space 25.1%, Massively Multiplayer 23.6%, 4X 16.1% ★, RTS 13.4%, Strategy 8.4%
- #38 Astroflux
73% matchMostly Positive72% of 343 reviews2016
Dev: Fula Fisken
Windows · Mac
Median: 3.1 hrsMean: 18.1 hrs≥1hr: 69%
Play Astroflux - a retro styled, action packed MMO space shooter.
Why similar: Massively Multiplayer 62.4%, Space 36.6%, 2D 1%
- #39 Subspace Discovery
69% matchMostly Positive75% of 131 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: Space 34.8%, Massively Multiplayer 32.8%, Sci-fi 8.6%, Strategy 7.6%, PvE 6.9%
- #40 Nova Empire
71% matchMixed53% of 283 reviews2022
Dev: Gamebear Tech
Windows
Median: 1.9 hrsMean: 12.5 hrs≥1hr: 57%
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: 4X 22.3% ★, Strategy 17.2%, Space 15.4%, Sci-fi 14%, Massively Multiplayer 11.4%
- #41 Star Ruler
73% 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 37.1%, 4X 20.8% ★, Strategy 19.2%, RTS 12.1%, Sci-fi 6.3%
- #42 Stellar Warfare
69% matchVery Positive84% of 406 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: Space 31.7%, RTS 15.8%, Strategy 10.1%, Sci-fi 9.4%, Online Co-Op 7.2%
- #43 ENDLESS™ Space - Definitive Edition
71% matchVery Positive81% of 9,559 reviews2012
Dev: AMPLITUDE Studios
Windows · Mac
Median: 4.6 hrsMean: 13.3 hrs≥1hr: 87%
ENDLESS™ Space is a turn-based 4X strategy game, covering the space colonization age in the ENDLESS™ Universe, where you can control every aspect of your civilization as you strive for galactic domination.
Why similar: Space 38.6%, Strategy 23.3%, 4X 23.3% ★, Sci-fi 8.9%, Multiplayer 2.8%
- #44 SPACECOM
72% matchMixed68% of 527 reviews2014
Dev: Flow CombinePub: 11 bit studios
Windows · Mac · Linux
Median: 3.1 hrsMean: 5.2 hrs≥1hr: 94%
SPACECOM – a strategic-to-the-bone, starfleet command game in which deception, smart movement, and choices to battle decide victory or defeat.
Why similar: Space 22.2%, RTS 19.4%, 4X 16.1% ★, Strategy 11.5%, Tactical 7.9%
- #45 Relentless Expanse
65% matchVery Positive90% of 102 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: Space 33.9%, RTS 18.9%, Strategy 13.8%, Sci-fi 10.8%, Multiplayer 6.8%
- #46 Homeworld: Deserts of Kharak
70% matchMostly Positive79% of 8,793 reviews2016
Dev: Blackbird InteractivePub: Gearbox Publishing
Windows · Mac
Median: 5.0 hrsMean: 9.6 hrs≥1hr: 87%
A ground-based RTS prequel to the classic Homeworld games. Assemble your fleet and lead them to victory on the shifting sands of Kharak in this compelling strategy game for PC from Blackbird Interactive.
Why similar: RTS 29.1%, Strategy 21.8%, Space 20.6%, Sci-fi 14%, Great Soundtrack 6.2%
- #47 Ways of History
72% matchMixed53% of 257 reviews2017
Dev: Glyph Worlds
Windows
Median: 1.4 hrsMean: 14.2 hrs≥1hr: 56%
Hardcore real-time strategy with a long-term round. Development of your civilization from caves to space. Huge world. Thousands of players. 240+ sciences and technologies. About 100 troops. 4 races. 50+ resource deposits. War, trade, science, construction...
Why similar: Massively Multiplayer 66.7%, Strategy 27.7%, Multiplayer 3.6%, Indie 2%
- #48 War Selection
67% matchVery Positive85% of 23,033 reviews2019
Dev: Glyph Worlds
Windows · Linux
Median: 2.5 hrsMean: 27.4 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: Massively Multiplayer 25%, RTS 24.6%, Strategy 20.8%, Multiplayer 8.8%, Online Co-Op 7.4%
- #49 4X-Galaxy 无主之地:银河
70% matchMixed51% of 251 reviews2018
Dev: Mercator
Windows
“4X-Galaxy” is a game developed by the 4X concept system(eXplore、eXpand、eXploit、eXterminate)
Why similar: Massively Multiplayer 44.3%, Space 26.5%, 4X 14.3% ★, Strategy 13.4%, Indie 1.5%
- #50 Rebel Galaxy
67% matchVery Positive85% of 8,230 reviews2015
Dev: Double Damage Games
Windows · Mac
Median: 1.8 hrsMean: 13.6 hrs≥1hr: 62%
Rebel Galaxy is a swashbuckling space adventure, with action-packed combat, exploration, discovery, trade, and “negotiation” with the outlandish denizens at the edge of the known universe.
Why similar: Space 74.4%, Sci-fi 13%, Great Soundtrack 8.6%, Strategy 2%, Atmospheric 1.1%
- #51 Subspace Continuum
68% matchVery Positive88% of 626 reviews2015
Dev: Virgin Interactive EntertainmentPub: Subspace Continuum
Windows
Median: 36 minMean: 43.7 hrs≥1hr: 46%
THE legendary free online multiplayer space shooter! Addictive, fast-paced, easy to learn, and impossible to master.
Why similar: Massively Multiplayer 38.4%, Space 35.6%, Strategy 10.6%, Multiplayer 6.5%, Co-op 5.7%
- #52 Star Trek Online
68% matchMostly Positive79% of 20,893 reviews2012
Dev: Cryptic StudiosPub: Arc Games
Windows
Median: 6.8 hrsMean: 132.7 hrs≥1hr: 84%
In Star Trek Online, the Star Trek universe appears for the first time on a truly massive scale. Players take the captain's chair as they command their own starship and crew. Explore strange new worlds, seek out new life and new civilizations, and boldly go where no one has gone before.
Why similar: Massively Multiplayer 36.8%, Space 35.1%, Sci-fi 11.5%, Multiplayer 3.5%, Online Co-Op 2.6%
- #53 Ascent - The Space Game
69% matchMixed68% of 340 reviews2016
Dev: Fluffy Kitten Studios
Windows
Median: 12 minMean: 18.1 hrs≥1hr: 38%
Ascent is a PVE sandbox space MMO with 270 BILLION star systems and an emphasis on strong Sci Fi. It encourages Exploration, Colonization, Research, Asteroid mining, Farming, Trading, and Combat. Outside the tutorial sector, everything in-game has been built by players.
Why similar: Space 41%, Massively Multiplayer 39.5%, Strategy 11.4%, Sci-fi 6.9%, Indie 1.2%
- #54 Infinity: Battlescape
66% matchVery Positive80% of 751 reviews2019
Dev: I-Novae Studios, LLC
Windows
Median: 2.9 hrsMean: 10.0 hrs≥1hr: 74%
Infinity: Battlescape is a multiplayer space combat sim supporting hundreds of players on a single server. Join one of the corporate factions and fight for domination of a seamless, true-to-scale procedural star system. Participate in massive space and planetary battles involving hundreds of ships.
Why similar: Massively Multiplayer 43.2%, Space 43.1%, Sci-fi 7.5%, PvP 2.8%, PvE 1.9%
- #55 Operation: New Earth
68% matchMixed61% of 819 reviews2016
Dev: Hunted Cow Games
Windows · Mac
Median: 2.4 hrsMean: 36.1 hrs≥1hr: 63%
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: Massively Multiplayer 57.4%, Strategy 23.8%, Sci-fi 8.4%, Tactical 6.1%, Multiplayer 4.4%