- #1 Final Vanguard
97% matchNo user reviews
Dev: Heavy Pepper Inc.
Windows
Rule a living interstellar empire in this real-time 4X grand strategy. Make decisions that shape civilian lives, manage fragile supply lines, lead military conquests, and decide whether your civilization thrives or collapses under its own expansion.
Why similar: 4X 22.4% ★, Grand Strategy 14% ★, RTS 12.8%, Diplomacy 8.7% ★, Space Sim 8.6%
- #2 Commanders Fury
96% matchNo user reviews
Dev: RoboFox Games LLC
Windows
Take command of the war machine of an empire in this 4x RTS hybrid. Fight battles with your flagship fleet in fully 3D real-time space combat. Recruit, train and dispatch commanders. Give them orders, directives and equip their fleets. Manage your empire’s supply logistics and fleet operations.
Why similar: 4X 27.1% ★, RTS 17.4%, Grand Strategy 12.3% ★, Space 9.8%, Diplomacy 7.4% ★
- #3 Reshaping Mars
96% matchVery Positive84% of 832 reviews2023
Dev: TholusPub: Yooreka Studio
Windows
Median: 2.2 hrsMean: 18.4 hrs≥1hr: 62%
「Reshaping Mars」is a colony simulation game on Mars, you will start by gathering resources, storing food, accepting immigrants, and building a better colony together. Develop powerful technologies for Mars Reshaping, make Mars great agai..sorry, just great. Don't forget to make the residents happy.
Why similar: 4X 20.7% ★, RTS 16%, Grand Strategy 13.1% ★, Colony Sim 11.4%, Base Building 8.8%
- #4 Solar Wave
95% matchMostly Positive77% of 71 reviews2026
Dev: SavGus Studio
Windows
A large-scale 4X strategy game with indirect control and a focus on simulating a space empire. Capture systems, develop your economy and logistics, call up hundreds of powerful fleets and watch them incinerate enemies of the Solar Empire.
Why similar: 4X 27.2% ★, Grand Strategy 17.9% ★, RTS 15.1%, Space 9.8%, Wargame 6.2%
- #5 Sins of a Solar Empire®: Rebellion
94% matchVery Positive93% of 16,336 reviews2012
Dev: Ironclad Games CorporationPub: Stardock Entertainment
Windows
Median: 4.9 hrsMean: 16.6 hrs≥1hr: 86%
Command a space-faring empire in Sins of a Solar Empire: Rebellion, the new stand-alone expansion that combines 4X depth with real-time strategy gameplay.
Why similar: 4X 20.8% ★, Grand Strategy 13.4% ★, RTS 12.8%, Diplomacy 12.6% ★, Space Sim 8.7%
- #6 Knights of the Crusades
94% matchMixed70% of 181 reviews2025
Dev: Reverie World StudiosPub: indie.io
Windows
Travel to the Holy Land with the First Crusades. Rise from a humble knight to the founding father of a world-spanning holy order. Lead through war, faith, diplomacy, and cunning schemes. Experience a unique blend of RTS, city-building, and sandbox gameplay, and shape history!
Why similar: Grand Strategy 16.9% ★, RTS 16%, 4X 16% ★, City Builder 14.4%, Diplomacy 8.3% ★
- #7 Existence: The Outer Reach
93% matchNo user reviews
Dev: Cozy Orchards
Windows
Existence is a strategy game on a massive scale. Lead your expanding empire, explore the galaxy, and master simultaneous space and planetary battles. Engage in solo play or team up with friends for intense PvP and co-op action.
Why similar: 4X 20.4% ★, Diplomacy 15.6% ★, Grand Strategy 12.4% ★, RTS 11.9%, Space 7.6%
- #8 Distant Worlds: Universe
92% matchMostly Positive75% of 1,855 reviews2014
Dev: Code ForcePub: Slitherine Ltd.
Windows
Median: 3.0 hrsMean: 24.3 hrs≥1hr: 60%
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: 4X 41.3% ★, Grand Strategy 14.1% ★, Space 12.6%, Real-Time with Pause 7.9% ★, RTS 7.8%
- #9 Stellaris
91% matchVery Positive86% of 196,831 reviews2016
Dev: Paradox Development StudioPub: Paradox Interactive
Windows · Mac · Linux
Median: 19.4 hrsMean: 144.9 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: 4X 28.1% ★, Grand Strategy 19.7% ★, Space 12.5%, Real-Time with Pause 10.1% ★, Diplomacy 7.4% ★
- #10 Old Stars
91% matchNo user reviews
Dev: adamjr
Windows · Mac · Linux
A fast-paced 4X galaxy you can actually finish. Expand by colonising and besieging rival worlds, wield government powers that bend the rules - freeze enemy fleets, sever hyperlanes, vanish into stealth - and race rivals to claim the galactic core. A grand-strategy empire in an evening, not a month.
Why similar: 4X 33.2% ★, Grand Strategy 20% ★, Space 9.7%, RTS 8.3%, Strategy 7.3%
- #11 Advisors at the End of the Universe
90% match5 user reviews100% of 5 reviews2023
Dev: Flux-Soul
Windows · Linux
AEU is a fast paced realtime strategy and 4x hybrid. Players influence their empire to grow, fight, forge alliances or engage in trade. Players are given control over the empire's traits, research and a set of three types of abilities(Construction, Plagues and Agents) to accomplish their goals.
Why similar: 4X 19.9% ★, Real-Time with Pause 16.2% ★, Grand Strategy 15.8% ★, RTS 11.3%, Diplomacy 9.3% ★
- #12 Star Ruler
89% matchVery Positive82% of 341 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: 4X 39.6% ★, RTS 16.6%, Space 14.2%, Grand Strategy 12.1% ★, Strategy 9.6%
- #13 Kingdom Wars 4
89% matchMixed66% of 240 reviews2021
Dev: Reverie World StudiosPub: indie.io
Windows
Median: 24 minMean: 7.1 hrs≥1hr: 39%
It's 1347, the time of the Hundred Years' War. In this historical grand strategy and RTS hybrid you play as one of 200 minor lords across medieval Europe, Africa or Middle East. Rise up to take over your Kingdom and be crowned, then fight to preserve your empire as Black Death descends on Europe.
Why similar: 4X 19.4% ★, Grand Strategy 14.9% ★, RTS 14%, City Builder 13.2%, Colony Sim 10.5%
- #14 Hollow Stars
88% matchNo user reviews2026
Dev: AppGX
Windows
A deep 2D strategy of cosmic trade and faction warfare. Build trading empires, refine asteroids, lead fleets into battle and run faction politics — solo or in four-player co-op
Why similar: 4X 33% ★, Grand Strategy 19.8% ★, RTS 17.6%, Strategy 7.3%, Space 7%
- #15 The King's Campaign
87% match8 user reviews75% of 8 reviews2023
Dev: Reverie World Studios Inc
Windows
Conquer Medieval Europe and North Africa in a combination of Grand Strategy and Real-Time Strategy gameplay where you rule one of 28 kingdoms as you build and manage your cities, engage in diplomacy and command massive armies on the world map and on the battlefield
Why similar: 4X 23.4% ★, Grand Strategy 16.7% ★, RTS 14.8%, Real-Time with Pause 12% ★, Diplomacy 8.9% ★
- #16 Descending Empires
86% matchNo user reviews
Dev: Parcyval
Windows
A multiplayer space RTS blending in depth mechanics with fast paced skirmish matches. control and manage an empire together with your team in large-scale physic-based online battles, and expand your army mit modded factions
Why similar: 4X 22.4% ★, Grand Strategy 15.2% ★, RTS 14.9%, Diplomacy 10% ★, Space Sim 9.7%
- #17 Distant Worlds 2
86% matchMostly Positive71% of 3,552 reviews2022
Dev: CodeForcePub: Slitherine Ltd.
Windows
Median: 8.5 hrsMean: 41.2 hrs≥1hr: 74%
Distant Worlds 2 is a vast, pausable real-time 4X space strategy game.
Why similar: 4X 37.8% ★, Grand Strategy 21.2% ★, Space 10.5%, Strategy 7.6%, Sci-fi 6.4%
- #18 Powerplay
84% matchPositive87% of 38 reviews2026
Dev: Frantic
Windows · Mac
Powerplay is an RTS with a focus on resources and industry. Create supply chains, transport, and explore in this thrilling base builder. Grow into a powerful industrial nation, but don't spread too thin! Resources are finite and "the others" can reclaim what is theirs at any time.
Why similar: 4X 26.6% ★, RTS 18.7%, City Builder 15.1%, Colony Sim 12.5%, Base Building 10.6%
- #19 Near Sol
85% match1 user reviews0% of 1 reviews2022
Dev: LTide
Windows · Mac · Linux
Space 4X game with the ability to build factories, extract resources, with characters, internal and external markets ... Take part in the discussion of the game, share your vision)
Why similar: 4X 31.8% ★, Grand Strategy 19.7% ★, RTS 18.2%, Space 8.9%, Management 5.9%
- #20 Small Kingdoms
84% matchNo user reviews2026
Dev: Bad Logic Studios
Windows
Small Kingdoms is a streamlined grand strategy and RTS game with procedurally generated campaigns. Build up your cities and armies on the world map and command your troops on the battlefield. Rule a medieval fantasy kingdom and conquer your rivals.
Why similar: 4X 26% ★, Grand Strategy 17.6% ★, RTS 16.3%, City Builder 10.1%, Colony Sim 7.7%
- #21 Periphery Online
82% matchMixed72% of 54 reviews2026
Dev: Aleksandr Nagaev
Windows
A refugee capsule lands on an uninhabited planet. You have to survive, rebuild civilization and, if possible, regain control over the Earth. One big universe, one endless pvp session for all players.
Why similar: RTS 20.9%, 4X 20% ★, Grand Strategy 14.5% ★, Space 10.8%, City Builder 8.9%
- #22 Medieval Kingdom Wars
83% matchMostly Positive76% of 2,615 reviews2019
Dev: Reverie World StudiosPub: indie.io
Windows
Median: 3.1 hrsMean: 6.1 hrs≥1hr: 86%
Rewrite medieval history through bloody siege combat in a fusion of RTS and Grand Strategy genres. Rule, build, and serve your King as a minor lord in medieval Europe. Experience siege, field and naval combat with an unseen degree of brutality. Rogue-like progression, epic towns and battles await…
Why similar: 4X 18.9% ★, Grand Strategy 15.4% ★, RTS 14.3%, City Builder 13%, Diplomacy 12.1% ★
- #23 Thrive: Heavy Lies The Crown
82% matchMixed59% of 453 reviews2025
Dev: Zugalu EntertainmentPub: PlaySide
Windows
Median: 1.9 hrsMean: 10.8 hrs≥1hr: 63%
Thrive: Heavy Lies the Crown is a complex city builder, where the fate of your kingdom hinges on your every decision. Explore this medieval land alone or with friends, make tough moral choices and conquer your foes in RTS combat. Will you struggle to survive, or find the strength to Thrive?
Why similar: 4X 30.8% ★, Grand Strategy 14.7% ★, City Builder 13.5%, RTS 12.5%, Colony Sim 10.5%
- #24 Star Trek: Infinite
81% matchMixed43% of 3,512 reviews2023
Dev: Nimble Giant EntertainmentPub: Paradox Interactive
Windows · Mac
Median: 5.4 hrsMean: 19.0 hrs≥1hr: 79%
Star Trek: Infinite is a grand strategy experience that lets you play your own Star Trek story as the leader of one of four major factions in the galaxy. Follow the specially crafted story or blaze your own trail in the first Star Trek grand strategy game.
Why similar: 4X 27.2% ★, Grand Strategy 18% ★, RTS 13.7%, Diplomacy 12.4% ★, Space 8.8%
- #25 Lord of Rigel
80% matchMixed68% of 115 reviews2024
Dev: Rhombus Studios
Windows
Lord of Rigel is a turn-based 4X space strategy game inspired by the classics. In a galaxy divided by two elder races, will you unite with other species or forge your own path? Navigate galactic politics and defeat threats using espionage, research, and military force. How will you shape the galaxy?
Why similar: 4X 22.6% ★, Real-Time with Pause 14.9% ★, Grand Strategy 14.7% ★, Diplomacy 11.1% ★, Space Sim 8.2%
- #26 Galactic Ruler
81% 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: 4X 22.8% ★, Real-Time with Pause 15.3% ★, Grand Strategy 14.1% ★, RTS 11.4%, Space Sim 9.3%
- #27 Spaceman's Luck
79% matchNo user reviews2026
Dev: Gideon Kennedy
Windows
A space 4X game. Colonize planets and annihilate enemy races in an intergalactic war for living space. Designed to be fun, fast, and easy to play.
Why similar: 4X 27.3% ★, Grand Strategy 20.1% ★, Space 16.7%, Real-Time with Pause 7.2% ★, Strategy 6.6%
- #28 Astronomics Rise of a New Empire
79% matchMixed50% of 18 reviews2024
Dev: JayFiArts
Windows
Astronomics Rise of a New Empire is an easy-to-learn real-time global strategy(4X) game. Control your faction in an intergalactic conflict. Manage your economy, conduct diplomatic negotiations and build a fleet to rule the galaxy.
Why similar: 4X 25.6% ★, Grand Strategy 17% ★, RTS 14.9%, Diplomacy 12.4% ★, Space 9.1%
- #29 Falling Frontier
78% matchNo user reviews
Dev: Stutter Fox StudiosPub: Hooded Horse
Windows
Conquer a vast procedurally generated star system in Falling Frontier, a sci-fi RTS where intel and logistics are decisive factors. Design ships and raid enemy supply lines, lay minefields and construct recon stations, and ambush enemy forces within asteroid fields and nebulae.
Why similar: 4X 24.5% ★, Grand Strategy 16.5% ★, Real-Time with Pause 15.9% ★, Diplomacy 11.1% ★, Space 9.3%
- #30 RAEV: Kingdom on the Distant Shores
78% matchNo user reviews2026
Dev: RAVINE Games
Windows
From a humble campfire to a multi-city kingdom, lead with grace in RAEV: Kingdom on the Distant Shores: a unique kingdom builder where every decision shapes the fate of your fox citizens and the legacy of your continent-spanning kingdom. With a freeform building system, no grids, no limits.
Why similar: City Builder 17.4%, 4X 16.5% ★, Grand Strategy 16% ★, Diplomacy 14.9% ★, Colony Sim 12.8%
- #31 Star Zeal 4x
77% matchNo user reviews
Dev: Akuu Digital Entertainment
Windows
Star Zeal is a space based 4x strategy and rpg hybrid. A mixture between a procedural, open ended RPG and a space civilization builder. Go on an adventure with your character and their faction whilst making friends, enemies and exploring a vast galaxy.
Why similar: 4X 26.4% ★, Grand Strategy 16.2% ★, RTS 15.2%, Colony Sim 13.5%, Space Sim 9.9%
- #32 Cataclismo
76% matchVery Positive89% of 4,300 reviews2025
Dev: Digital SunPub: Hooded Horse
Windows
Median: 4.1 hrsMean: 8.8 hrs≥1hr: 77%
Design and build fortresses brick by brick to stand against endless hordes of Horrors in this real-time strategy game with resource management, siege defense, and exploration. Lead from the ramparts, push back the darkness, and hold fast against the creatures of the Mist.
Why similar: 4X 19.4% ★, Grand Strategy 14.1% ★, City Builder 13.2%, RTS 11.8%, Diplomacy 11.3% ★
- #33 Exogate Initiative
76% matchMostly Positive76% of 727 reviews2025
Dev: Xeno Bits
Windows
Build and manage mankind’s first mission across the universe! Create a sprawling facility underground, recruit a diverse group of specialists from around the globe and explore mysterious new worlds through the Exogate.
Why similar: 4X 22% ★, City Builder 15.1%, RTS 13.8%, Colony Sim 11.9%, Base Building 8.9%
- #34 Stellar Sovereigns
77% matchMixed65% of 31 reviews2023
Dev: Imagined Reality
Windows
Indie 4X space strategy game with TB empire management and RTS combat set in a 3D star cluster. Build an interstellar empire by colonizing and conquering star systems, develop your colonies establish trade routes and construct fleets from a range of retrofittable capital & escort class vessels.
Why similar: 4X 27.3% ★, Grand Strategy 16.8% ★, RTS 13.2%, Space Sim 11.3%, Space 7.6%
- #35 Pirate Plight
75% matchNo user reviews
Dev: Cutlass Studios
Windows
It's pirates against British sailors (or each other) in this real-time strategy city-building game. Gather resources, build cities, drink rum, fight enemies, explore the sea, and discover new islands.
Why similar: 4X 22.8% ★, RTS 17.7%, City Builder 17.6%, Colony Sim 14.1%, Base Building 9.5%
- #36 Industries of Titan
74% matchMixed62% of 1,618 reviews2023
Dev: Brace Yourself Games
Windows
Median: 5.4 hrsMean: 14.4 hrs≥1hr: 84%
Create a sprawling industrial city. Compete with other rival corporations on Titan for resources, territory, and power. Seek victory via technology, influence, warfare, or the wealth extracted from your citizens. Stake your claim to the Industries of Titan in this innovative sim/strategy game!
Why similar: 4X 23.2% ★, Real-Time with Pause 15.2% ★, City Builder 15%, Colony Sim 11.8%, Space Sim 8.3%
- #37 Empires Edge
73% matchNo user reviews
Dev: Kaser Studio
Windows
Empires Edge is a strategy game about building a civilization on floating islands, inspired by the classic Mega Lo Mania. Lead your people, achieve technological breakthroughs, and conquer new territories as you forge an empire at the edge of the Universe.
Why similar: 4X 18.6% ★, RTS 17.2%, City Builder 15.8%, Colony Sim 14.1%, Base Building 9.2%
- #38 Structura
75% match1 user reviews0% of 1 reviews2021
Dev: Binary Station Studio
Windows · Linux
Structura is a rather unique sci-fi real-time strategy set in space. Its a hybrid of rts and fps, with emphasis on combat and survival. Build your economy for war, modify the unit by adding components, explore, expand, and survive the savage waves of enemy attacks.
Why similar: 4X 29.5% ★, RTS 18.5%, Grand Strategy 17.6% ★, Space Sim 12.1%, Base Building 8.7%
- #39 Ant Colony: Wild Forest
73% matchNo user reviews2026
Dev: Pixel CellsPub: Polden Publishing
Windows · Mac · Linux
You play as an ant queen, growing an ant colony. Ants cannot be controlled directly. But you can spawn needed types of ants; upgrade them; make raids and most importantly - dig and build a dungeon! The goal of each location is to destroy all enemy bases. If the queen dies - the game ends.
Why similar: 4X 21.1% ★, Grand Strategy 16.2% ★, City Builder 15.1%, Colony Sim 12.8%, RTS 12.6%
- #40 Ascendance
72% matchNo user reviews2027
Dev: Torchdrive
Windows
Ascendance is a real-time space strategy game that sees you lead your civilisation into a vast and mysterious galaxy. Experience an immersive journey with detailed civilisations, deeply-simulated economies, internal politics, nuanced diplomacy, and intense space battles.
Why similar: 4X 28.3% ★, Grand Strategy 17.7% ★, RTS 16.7%, Diplomacy 9% ★, Space 8.8%
- #41 CIVIREVIVAL
72% matchNo user reviews
Dev: 筋斗云
Windows
In this 4X + RPG strategy game, lead humanity’s last ark and rebuild a new home among the mysterious ruins of the stars. Starting from nothing, you will develop technology, build powerful fleets, resist external threats, and shape the rebirth of human civilization.
Why similar: 4X 23.5% ★, RTS 16.9%, Grand Strategy 14% ★, Space 11.8%, Wargame 10.9%
- #42 Star Ruler 2
73% 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: 4X 43.3% ★, RTS 22.7%, Space 15.5%, Strategy 8.4%, Sci-fi 8%
- #43 Antimatter
70% matchNo user reviews
Dev: Geoffroy Pirard
Windows
Antimatter is a 4X strategy game set in a vast, living, and fully simulated galaxy of immense scale and depth. Become anything from a humble spaceship captain to a galactic emperor, and everything in between.
Why similar: 4X 28.2% ★, Grand Strategy 17.6% ★, City Builder 15.1%, Colony Sim 13%, Base Building 6.8%
- #44 StarFringe: Adversus
70% matchMixed64% of 235 reviews2023
Dev: CasualogicPub: Conglomerate 5
Windows
This is the story about the beginning of the conquest of outer space by earthlings. It began as a global idea of saving mankind from hunger and lack of resources, and ended as a brutal and merciless war in space far from Earth.
Why similar: 4X 24.1% ★, RTS 20.8%, Grand Strategy 12.9% ★, Base Building 11%, Space 10.5%
- #45 Goblins of Elderstone
69% matchMostly Positive73% of 404 reviews2023
Dev: Outerdawn
Windows
Median: 1.1 hrsMean: 4.9 hrs≥1hr: 52%
This Goblin Tribe Simulator brings a challenging blend of chaos and creativity to the city-building genre. Build dwellings, manage your resources, defend your goblins, and grow your tribe, and please the Gods! Do you have what it takes to control the chaos and rule the unruly?
Why similar: 4X 21.5% ★, City Builder 14.7%, Grand Strategy 14.2% ★, Diplomacy 12.2% ★, Colony Sim 12%
- #46 Fragile Existence
69% matchNo user reviews2026
Dev: Fragile ContinuumPub: Hooded Horse
Windows
Save humanity from the brink of extinction in this sci-fi strategy game of survival. Travel among the stars to seek out resources, establish and develop colonies to sustain civilization, and grow your military might to push back against an overwhelming threat.
Why similar: 4X 23.7% ★, Real-Time with Pause 16.5% ★, Grand Strategy 15.4% ★, Diplomacy 12.7% ★, Space 8.1%
- #47 Gewevo : Interstellar
71% matchNo user reviews2021
Dev: Victor Filipiak
Windows
Gewevo : Interstallar is a space strategy game derived from the tabletop RPG universe Gewevo. It offers an approach a little closer to a wargame with regard to the empire management aspect. Made with passion by a one-man team;)
Why similar: 4X 37.6% ★, RTS 21.5%, Action RTS 12.5% ★, Strategy 8.9%, Space 8.4%
- #48 Anno 2205™
70% matchMostly Positive70% of 6,333 reviews2015
Dev: Blue BytePub: Ubisoft
Windows
Median: 10.1 hrsMean: 54.3 hrs≥1hr: 89%
In Anno 2205™, you join humankind‘s next step into the future with the promise to build a better tomorrow. You conquer Earth, establishing rich, bustling cities and grand industrial complexes, but to secure the prosperity of your people, you must travel into space.
Why similar: City Builder 29.4%, 4X 27.5% ★, RTS 10.2%, Space 7.7%, Strategy 6.9%
- #49 Antropico: Colonies
68% matchNo user reviews2027
Dev: Scassius Systems
Windows · Linux
A large-scale space strategy game focused on building and maintaining power within a simulated galaxy. Build, develop, and survive in a galaxy shaped by history and consequences.
Why similar: 4X 31.4% ★, Grand Strategy 23.3% ★, Strategy 8.3%, Action RTS 7.7% ★, Space 7.5%
- #50 Galactum Meridian
68% matchNo user reviews2026
Dev: Hedra Games
Windows
Lead humanity's first deep survey beyond Sol in a research-first space strategy game. Explore star systems, investigate worlds, deploy probes, and turn scientific discoveries into strategic power.
Why similar: 4X 36.4% ★, Space Sim 12.7%, Grand Strategy 12.1% ★, Space 11.5%, Strategy 7.9%
- #51 StellarForge
67% matchNo user reviews
Dev: Justin HellmanPub: Darkstar
Windows
In STELLARFORGE, you are more than a colony administrator — you are the founder of a civilization at the edge of known space. Build industrial colonies across hostile worlds, command interplanetary logistics networks, and lead humanity through an age of expansion, survival, and discovery.
Why similar: 4X 34.5% ★, City Builder 18.8%, Colony Sim 15.4%, Action RTS 10.1% ★, Strategy 7.2%
- #52 Rank: Warmaster
68% match3 user reviews100% of 3 reviews2021
Dev: Laser Beams & Particle Streams Software, Inc.
Windows
Stranded on Mars with next to nothing, build a city, assemble a fleet, and expand your empire to survive a hostile solar system in this new take that combines elements of space combat and RTS inspired by the classics.
Why similar: 4X 24.4% ★, RTS 15.4%, Space Sim 10.8%, Colony Sim 8.6%, City Builder 8.6%
- #53 ASTRA LIMES: Belt Operations
67% matchNo user reviews2026
Dev: CorvusPub: Minus1K
Windows
Command fleets in this indirect control RTS game set within treacherous asteroid belts. Easily design your own skirmishes for a quick 15-minute battle or dive into an hours-long campaign of high-risk surgical strikes and systematic border advancement.
Why similar: 4X 39.2% ★, RTS 22.6%, Space 11.4%, Strategy 8.7%, Wargame 7%
- #54 Stellar Dynasty
67% matchNo user reviews
Dev: Joshua R.D. Wilson
Windows
A sci-fi, 4X, real-time strategy game. Build, fight, and explore to survive against an unstoppable alien threat. Carry the fight from one galaxy to the next as you battle back from the brink of extinction, and unlock the secrets of the past to restore your people to the path of galactic super power.
Why similar: 4X 33% ★, Real-Time with Pause 16.2% ★, RTS 15.3%, Space 12.3%, Sci-fi 6.8%
- #55 Whiskerwood
65% matchVery Positive92% of 3,269 reviews2025
Dev: Minakata DynamicsPub: Hooded Horse
Windows
Median: 9.1 hrsMean: 16.4 hrs≥1hr: 88%
Establish a home for your industrious mice under the oppressive paw of your cat overlords in this city builder featuring complex simulations, intricate production chains, and the age-old rivalry between cat and mouse.
Why similar: 4X 21.8% ★, Grand Strategy 15.9% ★, City Builder 15.2%, Colony Sim 13.1%, Diplomacy 12.2% ★
- #56 Agecraft
67% matchNo user reviews2026
Dev: SnakyDevelop
Windows · Mac
Agecraft is a city-builder strategy where you guide a settlement through thousands of years of human history. Manage individual citizens, grow your economy, trade or wage war with other states, and advance from the Stone Age to the Space Age.
Why similar: 4X 26.9% ★, Grand Strategy 17.9% ★, City Builder 17.3%, Colony Sim 12.2%, Diplomacy 9% ★
- #57 StarDrive
69% matchMixed45% of 1,489 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: 4X 49.2% ★, RTS 17.8%, Space 14.8%, Strategy 9.1%, Sci-fi 6.2%