- #1 Operation: New Earth
96% matchMixed60% of 832 reviews2016
Dev: Hunted Cow Games
Windows · Mac
Median: 2.8 hrsMean: 35.5 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: Massively Multiplayer 71.2%, Strategy 28.8%
- #2 The Infinite Black
95% matchMixed66% of 213 reviews2016
Dev: SpellbookPub: www.Spellbook.com
Windows · Mac · Linux
Median: 5.5 hrsMean: 82.8 hrs≥1hr: 72%
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 63.7%, Strategy 20%, Space 16.4%
- #3 Galcon 2: Galactic Conquest
94% 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 46%, Massively Multiplayer 28.8%, Space 25.2%
- #4 War Planet Online: Global Conquest
92% matchMixed63% of 967 reviews2017
Dev: Gameloft
Windows
Median: 1.6 hrsMean: 33.9 hrs≥1hr: 58%
Build your army, dominate your region and lead your alliance to conquer the globe!
Why similar: Massively Multiplayer 73.9%, Strategy 23.4%, Action 2.7%
- #5 Space Wars: Interstellar Empires
91% matchMixed65% of 244 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 76.9%, Strategy 23.1%
- #6 Star Crusade CCG
90% matchMostly Positive80% of 1,881 reviews2016
Dev: ZiMAD, Inc.
Windows
Median: 1.3 hrsMean: 24.9 hrs≥1hr: 57%
Star Crusade: War for the Expanse is a free-to-play, online, digital collectible card game (CCG) based in a richly styled sci-fi universe, where each player takes command of one of the six factions vying for supremacy in an unclaimed exotic sector of space.
Why similar: Massively Multiplayer 51.5%, Strategy 35.7%, Space 12.8%
- #7 Nova Empire
89% 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 48.6%, Massively Multiplayer 33.1%, Space 18.3%
- #8 Astro Lords
89% matchMixed65% of 230 reviews2015
Dev: Aratog LLCPub: Conglomerate 5
Windows · Mac · Linux
Median: 48 minMean: 6.0 hrs≥1hr: 44%
Player bases are located on asteroids, which travel within the Oort Cloud. Once they’ve acquired the appropriate skills, players can control their asteroid’s movements. Mass-combat enthusiasts will love the Arena: here, players can battle it out against alien races or other Astro Lord players.
Why similar: Massively Multiplayer 57.6%, Space 23.7%, Strategy 16.1%, Action 2.5%
- #9 World Of Conquerors
87% matchMixed61% of 99 reviews2019
Dev: HuntahPub: Darkness Development
Windows
Build your cities, manage resources, train soldiers and fight for supremacy in a vast world with other player controlled empires
Why similar: Massively Multiplayer 76.9%, Strategy 23.1%
- #10 Star Hunter - Infinite Lagrange
85% 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: Massively Multiplayer 57.9%, Strategy 22.2%, Space 19.9%
- #11 Arena
86% matchMixed70% of 56 reviews2019
Dev: FX GAMES
Windows · Mac
Enter the Arena! From the creators of Galaxy Control comes a real-time multiplayer game starring the space stations assault and defence, your favorite Galay Control characters and much, much more.
Why similar: Strategy 100%
- #12 Hades' Star
84% matchMostly Positive73% of 2,671 reviews2019
Dev: Parallel Space Inc
Windows · Mac
Median: 1.6 hrsMean: 54.6 hrs≥1hr: 55%
A unique space strategy game where thousands of players participate in one shared galaxy.
Why similar: Massively Multiplayer 51.1%, Space 30.1%, Strategy 18.7%
- #13 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: Massively Multiplayer 62.1%, Space 21.9%, Strategy 16%
- #14 Stellarcraft
77% matchVery Positive91% of 101 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: Strategy 98%, Action 2%
- #15 Galaxy Life
78% 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 100%
- #16 [MARS] Total Warfare
82% matchMostly Positive71% of 117 reviews2018
Dev: TCR
Windows
[MARS] Total Warfare uses authentic Martian landscapes to create an intense RTS experience best described as a hybrid between team multiplayer and massively multiplayer online. Fight over natural resources vs human or AI opponents and conquer a crater ridden world, with pink sky and blue seas!
Why similar: Massively Multiplayer 71.8%, Strategy 24.5%, Action 3.7%
- #17 Battle Arena
81% matchMixed64% of 58 reviews2019
Dev: ShadowWolf Games
Windows
Battle Arena is a multiplayer, immersive 2D Sci-Fi shooter! Plunge into the world of space battles and be the first!
Why similar: Massively Multiplayer 95%, Action 5%
- #18 Starblast
80% matchVery Positive81% of 1,103 reviews2017
Dev: Neuronality
Windows · Mac
Median: 2.2 hrsMean: 22.6 hrs≥1hr: 64%
Fun, fast paced online multiplayer arcade space shooter. Take control of your spaceship, mine asteroids, increase your stats, upgrade to different types of spaceships with improved stats and weapons. Fight against other players and collect their gems.
Why similar: Massively Multiplayer 69.8%, Space 26.7%, Action 3.5%
- #19 Pixel Starships
75% 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: Massively Multiplayer 56.2%, Space 24.7%, Strategy 19.1%
- #20 Dragon Lords: 3D Strategy
79% matchMostly Positive75% of 143 reviews2017
Dev: FX Games
Windows · Mac
Median: 3.3 hrsMean: 20.8 hrs≥1hr: 68%
Dragon Lords is an epic fantasy strategy game with amazing 3D graphics! Build a fearsome castle, gather an indomitable army of elves and dwarves, recruit legendary heroes, use the magic of nature and the crushing power of dragons to make battles go your way.
Why similar: Massively Multiplayer 75%, Strategy 25%
- #21 Star Conflict
77% matchMostly Positive73% of 15,200 reviews2013
Dev: Star Gem Inc.Pub: Gaijin Network Ltd
Windows · Mac · Linux
Median: 2.0 hrsMean: 34.6 hrs≥1hr: 62%
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 95.3%, Action 4.7%
- #22 Bloons TD Battles
75% matchVery Positive91% of 29,302 reviews2016
Dev: Ninja Kiwi
Windows · Mac
Median: 2.1 hrsMean: 25.7 hrs≥1hr: 64%
Go head to head with other players in a Bloon-popping battle for victory. From the creators of best-selling Bloons TD 6, this all new Battles game is specially designed for multiplayer combat, featuring the ability to control bloons directly and send them charging past your opponent's defenses.
Why similar: Strategy 53.3%, Massively Multiplayer 41.9%, Action 4.9%
- #23 Astro Lords: Oort Cloud
78% matchMixed54% of 69 reviews2016
Dev: Aratog LLCPub: BISBOG SA
Windows
Astro Lords: Oort Cloud is a free-to-play, science-fiction MMORTS combining construction management with click-and-drag Artillery style combat and strategy elements such as exploration, raiding and espionage.
- #24 March of Empires
76% matchMixed62% of 1,836 reviews2017
Dev: Gameloft
Windows
Median: 1.6 hrsMean: 75.6 hrs≥1hr: 57%
Claim your title as Shogun, Highland King, Northern Tsar or Desert Sultan and join this genre-redefining strategy game where you will wage constant war for real territorial conquest! Fortify your castle, fuel a massive army, and enter the ultimate fight for realm domination!
Why similar: Massively Multiplayer 71.8%, Strategy 24.9%, Action 3.3%
- #25 Microsoft Allegiance
76% matchMostly Positive79% of 188 reviews2017
Dev: Microsoft Game StudiosPub: ZapHop Games
Windows
Median: 54 minMean: 10.6 hrs≥1hr: 47%
Allegiance is a team-based multiplayer space combat sim that seamlessly combines first-person space combat with a top-down-view perspective, real time strategy, and real time tactics. Team commanders build bases, research technology, and coordinate players to execute a wide range of strategies.
Why similar: Space 51%, Strategy 41.5%, Action 7.5%
- #26 Iron Armada
71% matchMostly Positive77% of 177 reviews2024
Dev: Bluedrake42Pub: Drakeling Labs
Windows
Median: 1.4 hrsMean: 812.1 hrs≥1hr: 53%
Iron Armada is a multiplayer, space-faring combat game where players must team up to build a fleet of ships in order to survive the perils of space and defeat the opposing player faction. Build ships of all shapes and sizes, mine resources, and scavenge parts with friends to conquer the universe!
Why similar: Strategy 72.5%, Space 16%, Action 11.6%
- #27 Solaris
73% 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 100%
- #28 Battle Islands
74% matchMostly Positive75% of 3,462 reviews2014
Dev: DR StudiosPub: 505 Games
Windows
Median: 1.0 hrsMean: 16.5 hrs≥1hr: 49%
Battle friends over air, land and sea in this epic WW2-themed battle strategy game.
Why similar: Strategy 95.4%, Action 4.6%
- #29 Space Aces
68% matchMixed64% of 474 reviews2026
Dev: Ace Game Industries
Windows · Mac
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 76.7%, Space 19.8%, Action 3.5%
- #30 PlanetX
69% matchMixed67% of 52 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: Strategy 41%, Massively Multiplayer 32%, Space 27%
- #31 Beyond the Void
74% 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 61.9%, Space 38.1%
- #32 Istrolid
72% matchVery Positive87% of 2,693 reviews2016
Dev: treeform
Windows · Mac · Linux
Median: 1.0 hrsMean: 10.9 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 51.2%, Strategy 48.8%
- #33 Space Commander: War and Trade
72% matchMixed68% of 701 reviews2020
Dev: Home Net Games
Windows · Mac · Linux
Median: 1.2 hrsMean: 9.2 hrs≥1hr: 56%
Fight, explore the stars, trade, and lead your fleet across the galaxySpace Commander: War and Trade is an ultimate single player space-sim featuring spectacular graphics, intuitive combat and deep mechanics.
Why similar: Space 79.6%, Action 20.4%
- #34 EDYN
69% matchMixed71% of 51 reviews2024
Dev: GALESTORM GAMES
Windows · Mac
Join the battle for EDYN, the ultimate multiplayer strategy game. Build settlements, command armies, and unify the realms in epic PvP warfare to etch your legacy into history. Raid, loot, make alliances, and unite to conquer the planet itself, with no Pay-To-Win mechanics to upset the playing field.
Why similar: Massively Multiplayer 76.1%, Strategy 23.9%
- #35 Space Cycle
67% matchVery Positive94% of 198 reviews2024
Dev: Some Sugar Studio
Windows
Space resources are the battleground for warring factions. As a Space Defense Officer, protect your faction's assets in a vast, hostile universe. Allocate resources, upgrade defenses, and repel relentless enemy attacks! With over 50 unique units and deep strategy, experience real-time tower defense!
Why similar: Space 54.9%, Strategy 45.1%
- #36 SpaceInvasion
71% 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: Strategy 55.1%, Space 44.9%
- #37 Galaxy Reavers
73% 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 52.1%, Space 47.9%
- #38 Sins of a Solar Empire II
66% 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 58%, Strategy 42%
- #39 Exocraft
73% matchMixed52% of 361 reviews2019
Dev: GoldFire Studios
Windows · Mac
Design unique spaceships and build the ultimate space mining fleet as you team up to battle for resources and glory in this massively multiplayer action strategy set in an alien wasteland.
Why similar: Massively Multiplayer 61.5%, Space 19.4%, Strategy 16.5%, Action 2.6%
- #40 Starship Theory
66% 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 55%, Strategy 45%
- #41 Outlive 25
63% 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: Strategy 54.8%, Space 45.2%
- #42 Project Entropy
68% 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: Strategy 100%
- #43 Trial Of Empires TD
69% matchMostly Positive69% of 70 reviews2022
Dev: Mustafa YILMAZER
Windows · Mac · Linux
Trial of Empires TD, is a Free to Play 3D tower defense game. Pick your ally and build your strategy with different combinations. Compete with other players on the Leaderboards with Single-Player or CO-OP game modes
Why similar: Strategy 81.7%, Action 18.3%
- #44 Galaxy Idle Clicker
63% matchMostly Positive75% of 1,170 reviews2025
Dev: SoehnlePub: TimeLost Gaming
Windows
Median: 10.5 hrsMean: 371.6 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: Space 100%
- #45 Galaxy in Turmoil
70% matchMostly Negative39% of 304 reviews2020
Dev: Frontwire Studios, LLC
Windows
Galaxy in Turmoil's conceptual Early Access game is a FREE multiplayer combined-arms game set in a brand-new universe, created by a team of volunteers. It’s all about endless arms races, corporate espionage, and, most of all, blasting up on the enemy faction and taking their stuff.
Why similar: Strategy 66%, Space 20.7%, Action 13.3%
- #46 Ways of History
70% matchMixed53% of 257 reviews2017
Dev: Glyph Worlds
Windows
Median: 1.4 hrsMean: 14.5 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 71.2%, Strategy 28.8%
- #47 Galaxy Defense War
62% 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: Strategy 100%
- #48 ThreadSpace: Hyperbol
71% matchMostly Positive74% of 50 reviews2007
Dev: Iocaine Studios
Windows
Median: 6 minMean: 4.3 hrs≥1hr: 28%
ThreadSpace: Hyperbol is an action-strategy game set in the distant future. Players battle each other on roads in space as they pilot massive ships capable of firing a wide variety of weapons. Create defenses, coordinate with your team, and launch an assault against your opponents to achieve victory!
Why similar: Strategy 85.7%, Action 14.3%