- #1 Planetary Annihilation: TITANS
97% matchVery Positive84% of 14,686 reviews2015
Dev: Planetary Annihilation Inc
Windows · Mac · Linux
Median: 4.0 hrsMean: 17.7 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: RTS 24%, Base Building 14.5%, War 10.5%, Space 10.1%, Destruction 10%
Why You'll Like It: Features massive, planet-spanning RTS combat with a heavy emphasis on destruction and strategic base management.
- #2 Executive Assault 2
96% matchVery Positive83% of 1,764 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 26.2%, Base Building 18.4%, Space 13.5%, Building 13.5%, War 9.4%
Why You'll Like It: A unique hybrid that allows you to build your base from an RTS perspective while engaging in direct space combat.
- #3 Supreme Commander: Forged Alliance
96% matchOverwhelmingly Positive97% of 14,341 reviews2011
Dev: Gas Powered GamesPub: Square Enix
Windows
Median: 6.9 hrsMean: 49.7 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 47.5%, Base Building 17%, Strategy 11.9%, Sci-fi 9.6%, Robots 7.1%
Why You'll Like It: A classic of the genre, it defines the scale of warfare and base-building that Annihilate The Spance aims to emulate.
- #4 Industrial Annihilation
95% matchMostly Negative30% of 448 reviews2024
Dev: Galactic Annihilation
Windows
The next major game in the Planetary Annihilation universe, Industrial Annihilation combines the iconic real-time strategy of the beloved Annihilation games with deep factory-building to deliver a blend of genres unlike any you’ve experienced before.
Why similar: RTS 47.4%, Base Building 21.7%, Strategy 15.7%, Sci-fi 9.3%, 3D 3.3%
Why You'll Like It: Combines deep factory automation with large-scale RTS combat, perfectly matching the production-heavy gameplay of the seed.
- #5 Sins of a Solar Empire II
94% matchVery Positive84% of 8,614 reviews2024
Dev: Ironclad Games CorporationPub: Stardock Entertainment
Windows
Median: 9.5 hrsMean: 32.4 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: RTS 29.9%, Space 28.5%, Base Building 13.4%, Strategy 8.4%, Sci-fi 8.4%
Why You'll Like It: A perfect blend of 4X strategy and real-time space combat that rewards players who focus on both economy and military expansion.
- #6 Ashes of the Singularity: Escalation
94% matchMostly Positive74% of 4,979 reviews2016
Dev: Stardock Entertainment
Windows
Median: 3.2 hrsMean: 7.2 hrs≥1hr: 89%
A massive-scale real-time strategy game where you command entire armies on a dynamic battlefield. Conquer multiple worlds across several single-player campaigns; or play with your friends in multiplayer combat.
Why similar: RTS 26%, Base Building 21.4%, Building 10.5%, Military 10.3%, Robots 10.1%
Why You'll Like It: Known for its massive scale and ability to handle thousands of units, making it a great fit for fans of large-scale RTS battles.
- #7 NEBULOUS: Fleet Command
93% matchVery Positive81% of 4,412 reviews2022
Dev: Eridanus IndustriesPub: Hooded Horse
Windows
Median: 5.0 hrsMean: 31.8 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 27.8%, War 20.6%, Space 18.8%, Military 16.8%, Strategy 7.2%
Why You'll Like It: Focuses on realistic, deep tactical space combat where positioning and fleet management are paramount.
- #8 Mindustry
91% matchOverwhelmingly Positive96% of 27,902 reviews2019
Dev: AnukenDev
Windows · Mac · Linux
Median: 4.9 hrsMean: 28.2 hrs≥1hr: 76%
An open-ended factory management game with RTS and tower defense elements.
Why similar: Base Building 30.7%, RTS 29.3%, Resource Management 14.3%, Building 12.2%, Strategy 6.6%
Why You'll Like It: An excellent blend of automation, base-building, and RTS-style defense that captures the constant production loop of the seed game.
- #9 Homeworld 3
92% matchMixed41% of 8,729 reviews2024
Dev: Blackbird InteractivePub: Gearbox Publishing
Windows
Median: 4.8 hrsMean: 64.7 hrs≥1hr: 73%
Tactical, beautiful, and wholly unique, the GOTY-winning sci-fi RTS returns with Homeworld 3. Assume control and battle through fleet combat in dazzling, fully 3D space while the award-winning story unfolds on a galactic scale.
Why similar: RTS 39.6%, Space 29.1%, Sci-fi 10.6%, Strategy 8.4%, Tactical 6.3%
Why You'll Like It: Provides a high-fidelity space RTS experience with deep tactical combat and a focus on managing fleets in three-dimensional space.
- #10 Tempest Rising
90% matchVery Positive87% of 11,874 reviews2025
Dev: Slipgate Ironworks™Pub: 3D Realms
Windows
Median: 3.8 hrsMean: 9.7 hrs≥1hr: 84%
Command distinct factions in a desperate struggle for power and resources in Tempest Rising - a classic RTS set on Earth after a nuclear war.
Why similar: RTS 59.5%, Base Building 17.3%, Strategy 12.9%, War 5.4%, Military 2.9%
Why You'll Like It: Provides a classic RTS feel with robust base-building mechanics that will feel familiar to fans of traditional strategy games.
- #11 Rogue Command
89% matchVery Positive90% of 1,029 reviews2026
Dev: feneq
Windows
Median: 4.2 hrsMean: 16.6 hrs≥1hr: 71%
True RTS gameplay reinforced with roguelite build crafting. Control units with bullet-time precision. Call down bases and raise armies. Drafted from a different arsenal every run. Weave builds that break the game. Or the game breaks you.
Why similar: RTS 21.2%, Base Building 17.2%, Space 13.6%, Building 11.4%, Military 10.3%
Why You'll Like It: An innovative RTS that incorporates roguelite elements, offering a fresh take on the traditional base-building loop.
- #12 Grey Goo
91% matchMixed68% of 4,331 reviews2015
Dev: PetroglyphPub: Six Foot
Windows
Median: 5.1 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 45.7%, Base Building 17.6%, Sci-fi 10.9%, Strategy 10.9%, Robots 9.2%
Why You'll Like It: A polished RTS that features distinct factions and a heavy emphasis on base construction and tactical positioning.
- #13 AI War 2
89% matchVery Positive87% of 1,559 reviews2019
Dev: Arcen Games
Windows · Mac · Linux
Median: 3.0 hrsMean: 5.7 hrs≥1hr: 83%
The most devious and acclaimed artificial intelligence in strategy gaming is better than ever. A grand strategy/RTS hybrid that reverses many conventions of both genres. Take territory without attracting attention, build your empire with care, and adapt to an ever-evolving galactic battleground.
Why similar: RTS 29.4%, Space 18.8%, War 17.5%, Military 14.7%, Sci-fi 8.7%
Why You'll Like It: Offers an asymmetric space strategy experience where you must manage massive fleets against an overwhelming, intelligent enemy.
- #14 Stellar Warfare
88% matchVery Positive83% of 429 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 25.1%, Base Building 18.5%, Space 17.5%, War 15.8%, Sci-fi 7.5%
Why You'll Like It: An indie space RTS that allows for significant customization of ships and fleet tactics.
- #15 Dust Fleet
87% matchMostly Positive76% of 229 reviews2023
Dev: Orbiting DiscoPub: indie.io
Windows
Assume command of a battle fleet and deploy immediately to the Dust Zone, commander. Our main food supply station has gone dark and the United Earth Nations (UEN) needs to know why in this 4X RTS space sim. Manage your ships, control space stations, and watch your back.
Why similar: Space 27.9%, RTS 13.3%, Sci-fi 12.9%, Base Building 12.1%, Strategy 9.9%
Why You'll Like It: A tactical space RTS that focuses on fleet composition and strategic decision-making during intense combat scenarios.
- #16 Dyson Sphere Program
86% matchOverwhelmingly Positive97% of 91,542 reviews2021
Dev: Youthcat StudioPub: Gamirror Games
Windows
Median: 13.0 hrsMean: 75.8 hrs≥1hr: 84%
Build the most efficient intergalactic factory in space simulation strategy game Dyson Sphere Program! Harness the power of stars, collect resources, plan and design production lines and develop your interstellar factory from a small space workshop to a galaxy-wide industrial empire.
Why similar: Base Building 30.1%, Space 24.8%, Building 15.9%, Resource Management 11.7%, Sci-fi 7.4%
Why You'll Like It: While more focused on automation, it captures the grand scale of space-based production and infrastructure building.
- #17 The Crust
85% matchMostly Positive77% of 3,724 reviews2024
Dev: VEOM StudioPub: Crytivo
Windows
Median: 6.9 hrsMean: 24.4 hrs≥1hr: 82%
Automate a lunar base as you become the savior of humanity exploring the future on the moon. Mine, craft, research, and trade resources with Earth in this gripping narrative basebuilder.
Why similar: Base Building 25.6%, Space 20%, RTS 15%, Building 12.9%, Resource Management 11.9%
Why You'll Like It: A space-based colony sim that emphasizes automation and base-building on a lunar scale.
- #18 Falling Frontier
86% 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: Space 43%, Military 22.5%, Sci-fi 18.2%, Strategy 13.1%, Singleplayer 3.3%
Why You'll Like It: A space RTS that emphasizes logistics, ship design, and base management within a realistic sci-fi setting.
- #19 Space Reign
84% matchMostly Positive74% of 461 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: RTS 27.6%, Space 26%, War 15.1%, Sci-fi 10.8%, Strategy 6.8%
Why You'll Like It: Focuses on the tactical side of space warfare, requiring players to manage their ships and fleet movements carefully.
- #20 Fragile Existence
84% 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: Space 39.2%, Military 27.2%, Sci-fi 17.6%, Strategy 12.4%, Singleplayer 3.5%
Why You'll Like It: A space RTS that forces players to balance survival, resource gathering, and fleet management in a hostile galaxy.
- #21 Final Factory
82% matchMostly Positive79% of 305 reviews2024
Dev: Never Games Limited
Windows · Mac
Median: 2.0 hrsMean: 7.9 hrs≥1hr: 63%
Final Factory blends factory building, spaceship design, and a rich universe to explore. Build a mega factory and command a massive fleet against the hostile local aliens. Discover new technologies and unlock the secrets of an ancient civilization as you explore an infinite cosmos.
Why similar: Base Building 25.9%, Space 16.8%, RTS 14.6%, Building 14.5%, Resource Management 12.9%
Why You'll Like It: A massive-scale automation game set in space that challenges players to build efficient production chains across solar systems.
- #22 Taur
82% matchMostly Positive80% of 2,108 reviews2020
Dev: Echo Entertainment
Windows
Median: 4.2 hrsMean: 6.9 hrs≥1hr: 76%
Taur is an action-strategy sci-fi game. Control the Prime Cannon and unlock all of its powerful weapons and abilities. Build turrets, droids, aircraft and more as you fight to protect the homeworld of the Tauron droids against a relentless invasion. Will your Taur stand against the Imperion warmachine?
Why similar: Base Building 22.5%, RTS 17.7%, Destruction 12.7%, Robots 9.7%, Strategy 8.8%
Why You'll Like It: A tower-defense hybrid that focuses on defending a base with massive weaponry, echoing the destruction-heavy theme of the seed.
- #23 Alien Marauder
83% matchMixed62% of 341 reviews2021
Dev: Vexan Studio
Windows
“Alien Marauder” is a real-time strategy game with survival and confrontation theme. In this game, you will be the leader to a treacherous alien planet, build and defend base to survive against the vexan waves. Make the right decision!
Why similar: RTS 22.6%, Base Building 18.6%, Building 12.3%, Military 11.5%, Robots 11%
Why You'll Like It: Blends RTS mechanics with survival elements, requiring players to build and defend their base against waves of enemies.
- #24 Starship Theory
81% matchMixed50% of 1,130 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: Base Building 40.6%, Space 28%, Building 9.4%, Strategy 9.4%, Sci-fi 9%
Why You'll Like It: Focuses on the construction and management of a single, complex starship, offering a more granular take on base-building.
- #25 Calyx
79% matchVery Positive88% of 461 reviews2026
Dev: Studio 568
Windows
A strategy game with a new kind of enemy, Calyx puts you in charge of a space mining outpost, locked in battle against powerful plant-aliens. Build your base, gather resources, assemble your forces, and take on the Calyx. With only an out-of-date AI for company, can you survive?
Why similar: RTS 27.2%, Base Building 23.2%, Space 17.4%, Resource Management 11.7%, Sci-fi 8.7%
Why You'll Like It: An early-access RTS that focuses on base-building and strategic expansion in a sci-fi setting.
- #26 War Selection
78% matchVery Positive85% of 23,502 reviews2019
Dev: Glyph Worlds
Windows · Linux
Median: 2.6 hrsMean: 28.2 hrs≥1hr: 70%
War Selection is a compelling RTS game featuring base building, resource extraction and warfare. Evolve from a stone age tribe to a distinct industrial nation with unique game mechanics and battle for supremacy with dozens of players on a unique procedurally generated map.
Why similar: Base Building 32.1%, RTS 31.2%, War 12.6%, Military 11.3%, Strategy 9.5%
Why You'll Like It: A large-scale RTS that features extensive base-building and historical progression, sharing the strategic depth of the seed.
- #27 Element
80% matchMixed68% of 50 reviews2018
Dev: Flightless
Windows · Mac · Linux
Median: 4.0 hrsMean: 6.7 hrs≥1hr: 91%
Element is a realtime strategy space game for people who don't have time to play realtime strategy space games. Generate energy, mine element, build attack and defence units, and destroy the enemy while maintaining a balance between earth, air and water.
Why similar: RTS 21.8%, Destruction 15.2%, Base Building 14.2%, Space 13.4%, War 11.9%
Why You'll Like It: A minimalist RTS that distills the core experience of space combat and resource management into a streamlined package.
- #28 Void Destroyer
81% matchMixed59% of 352 reviews2015
Dev: Iteration 11
Windows
Median: 18 minMean: 3.5 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 38.3%, RTS 30.4%, Strategy 15.6%, Sci-fi 11.7%, Indie 4%
Why You'll Like It: Combines space simulation with strategy elements, allowing for a mix of direct combat and fleet management.
- #29 Final Upgrade
78% matchMostly Positive77% of 458 reviews2022
Dev: TaosX
Windows
Median: 4.2 hrsMean: 12.2 hrs≥1hr: 69%
Help humanity to spread throughout the cosmos by exploring new worlds, building space factories and setting up trade routes. Research advanced technologies to increase efficiency and unlock new paths of development. Fight off other artificial intelligences in your goal to reach the Final Upgrade!
Why similar: Base Building 21.8%, Space 18.5%, Building 14.4%, RTS 10.8%, Resource Management 10.5%
- #30 From the Depths
77% matchVery Positive89% of 12,793 reviews2020
Dev: Brilliant Skies Ltd.
Windows · Mac · Linux
Median: 4.2 hrsMean: 40.7 hrs≥1hr: 81%
Over 1000 unique components allow you to build and command voxel vehicles from the deep ocean to outer space! Forge strategies, allegiances and fleets strong enough to destroy eight deadly factions of the planet and reign supreme. A genre-defying mashup of simulation, building, RTS and RPG.
Why similar: RTS 25.7%, Building 17.9%, War 16.4%, Space 15.6%, Military 13%
- #31 Outworld Station
75% matchVery Positive85% of 841 reviews2026
Dev: Trickjump Games Ltd
Windows
Median: 3.6 hrsMean: 10.6 hrs≥1hr: 68%
Take the helm as a new Station Commander and exploit an alien star system in this stunning space-station factory automation game. Amass resources and construct starships using increasingly advanced manufacturing and expand your station in a hostile universe.
Why similar: Base Building 27.3%, RTS 22.7%, Space 22.4%, Resource Management 8.9%, Sci-fi 6.8%
- #32 ZeroSpace
75% matchVery Positive81% of 1,297 reviews2026
Dev: Starlance Studios
Windows
Median: 2.7 hrsMean: 9.2 hrs≥1hr: 68%
ZeroSpace is a hybrid sci-fi RTS / RPG game that allows you to play as the commander of The Protectorate, a galactic force dedicated to securing humanity’s place in the galaxy. The Orion sector is locked in a vicious power struggle between many alien factions, ready to fight to the death.
Why similar: RTS 30%, Base Building 25.4%, Robots 17.9%, Military 15.7%, Strategy 6.6%
- #33 Galaxy Reavers
79% 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: RTS 37.2%, Space 34.1%, Strategy 15.2%, Sci-fi 10.1%, Indie 3.5%
Why You'll Like It: A space RTS that emphasizes fleet-based combat and tactical maneuvering in a sci-fi environment.
- #34 Starship Troopers: Terran Command
74% matchVery Positive87% of 12,012 reviews2022
Dev: The ArtistocratsPub: Slitherine Ltd.
Windows
Median: 3.4 hrsMean: 10.3 hrs≥1hr: 83%
Lead the Mobile Infantry in this RTS game set in the Starship Troopers film universe. Balance your army composition with a diverse set of unit types, overcome line-of-sight and line-of-fire challenges through tactical positioning, and use special abilities to smash the Arachnid hordes!
Why similar: RTS 38.7%, War 14.6%, Military 13.4%, Strategy 11.3%, Resource Management 8%
- #35 Executive Assault
76% matchVery Positive85% of 1,459 reviews2015
Dev: Hesketh Studios Ltd
Windows
Median: 3.4 hrsMean: 7.0 hrs≥1hr: 79%
Executive Assault is an indie real-time strategy/first-person shooter where you can not only build your base and create armies, but also take control of your units and fight as one of them.
Why similar: RTS 38.3%, Base Building 18.6%, Robots 12.5%, War 11.3%, Strategy 10.1%
- #36 Cosmoteer: Starship Architect & Commander
73% matchVery Positive94% of 12,820 reviews2022
Dev: Walternate Realities
Windows
Median: 19.2 hrsMean: 41.1 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 33%, Building 27.8%, Sci-fi 20.7%, Strategy 9.8%, Indie 4.4%
- #37 BlackChain
76% matchVery Positive86% of 123 reviews2021
Dev: Borington
Windows
A classic single-player RTS set in a Solar System ruled by megacorporations. Journey from Mars all the way to Planet 9 and uncover the secrets of the BlackChain.
Why similar: RTS 24.6%, Base Building 20.4%, Space 14.6%, War 12.3%, Sci-fi 7.5%
- #38 ERA ONE
72% matchVery Positive87% of 1,545 reviews2025
Dev: Team Complex LTD
Windows
Median: 4.3 hrsMean: 16.3 hrs≥1hr: 69%
Era One is an innovative space game that combines elements of real-time strategy, base building, space survival, and tactical battles. Players can create and customize their bases from scratch, construct various types of structures and warships, manage fleets, and engage in tactical space battles.
Why similar: RTS 33.3%, Base Building 26.6%, Space 25.3%, Strategy 6.6%, Sci-fi 5.1%
- #39 Dune: Spice Wars
73% matchMostly Positive79% of 13,540 reviews2023
Dev: Shiro GamesPub: Funcom
Windows
Median: 6.8 hrsMean: 16.4 hrs≥1hr: 85%
A 4X real-time strategy game from the developers of the critically acclaimed Northgard. Set in Frank Herbert’s groundbreaking Dune universe, you must lead your faction and battle for control and dominance over the harsh desert planet of Arrakis.
Why similar: RTS 24.3%, Base Building 18.5%, War 15%, Building 13.6%, Sci-fi 10.3%
- #40 Byte Lynx
74% matchVery Positive98% of 89 reviews2022
Dev: Artful Games
Windows
Byte Lynx is a fast-paced RTS with no units. Build defenses, dismantle your enemy, and steal their buildings in this deeply tactical building combat-based strategy game. Expand your arsenal across a series of diverse levels!
Why similar: RTS 25.4%, Base Building 22.9%, War 12.8%, Space 9.4%, Sci-fi 7.2%
- #41 Ancient Space
77% matchMixed44% of 370 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: RTS 39%, Space 34.9%, Strategy 14.3%, Sci-fi 9.4%, Singleplayer 1.7%
- #42 Outlive 25
71% matchVery Positive95% of 265 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: RTS 29.4%, Base Building 18.3%, Building 11.7%, Space 10.5%, Resource Management 9.6%
- #43 Zero-K
73% matchVery Positive94% of 4,369 reviews2018
Dev: Zero-K Team
Windows · Linux
Median: 2.3 hrsMean: 33.8 hrs≥1hr: 68%
With 100+ truly unique units, Zero-K is an RTS of freedom and creativity, tempered by a decade of refinement. Sculpt land into a castle and throw invaders off it with a Jugglenaut. Explore a massive campaign, solo or co-op. Hop online for epic 32 player battles or fast paced 1v1, on 100s of maps.
Why similar: RTS 57.6%, Strategy 15%, Robots 10.6%, Base Building 6.1%, Sci-fi 4.7%
- #44 HighFleet
71% matchVery Positive88% of 7,394 reviews2021
Dev: Konstantin KoshutinPub: MicroProse Software
Windows
Median: 4.9 hrsMean: 16.7 hrs≥1hr: 78%
Battle for survival in the skies of a mysterious future Earth in this unique action-strategy game mixing arcade combat, exploration, management and diplomacy. As giant flying ships wage spectacular aerial warfare, a prophecy tells of one who will save the world – could it be you?
Why similar: Building 24.3%, Military 23.7%, Sci-fi 12.5%, Strategy 11.3%, Tactical 10.9%
- #45 Machinefall
70% matchNo user reviews82% of 101 reviews2026
Dev: by Jan Zizka
Windows
Machinefall is a post-apocalyptic real time strategy game set on a fully playable global map. Lead humanity’s last survivors as they build bases, gather resources, and wage massive battles against an overwhelming machine swarm. Progress through technological eras from Stone Age to Atomic Age.
Why similar: RTS 24.1%, Base Building 19.6%, War 13.5%, Resource Management 10.5%, Building 10.2%
- #46 Particle Fleet: Emergence
72% matchVery Positive92% of 1,280 reviews2016
Dev: Knuckle Cracker
Windows · Mac · Linux
Median: 6.7 hrsMean: 24.8 hrs≥1hr: 75%
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: RTS 37.1%, Space 30.1%, Strategy 17.5%, Sci-fi 7.8%, Indie 6.5%
- #47 Starminer
69% matchMostly Positive73% of 1,858 reviews2026
Dev: CoolAndGoodGames
Windows
Median: 7.2 hrsMean: 20.1 hrs≥1hr: 81%
Design and build a massive interstellar fleet in this simulation sandbox. Strip space of its minerals for profit, but stay alert: your greed attracts the alien. Master deep base-building and deploy warships to protect your empire in immersive real-time space.
Why similar: RTS 28.7%, Space 25%, Base Building 23.9%, Sci-fi 11.5%, Physics 6.5%
- #48 Flaregate Network
69% matchMostly Positive77% of 57 reviews2026
Dev: Keycard Studio, LLC
Windows
A sci-fi deckbuilder with RTS-style fleet battles. Discover an epic space opera through a full story campaign, then pursue mastery in a separate roguelike mode.
Why similar: RTS 22.3%, Space 17%, Base Building 15.9%, Military 12.8%, War 11.5%
- #49 Distant Worlds 2
70% 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: Space 45.2%, Strategy 24.3%, Sci-fi 21.1%, 3D 3.7%, Combat 2.9%
- #50 From Glory To Goo
67% matchOverwhelmingly Positive97% of 1,792 reviews2024
Dev: Stratagem Blue
Windows
Median: 3.5 hrsMean: 17.2 hrs≥1hr: 67%
From Glory To Goo is a Sci-Fi survival RTS set on an alien world. Serve as humanity's bulwark by establishing a colony and supporting your colonists still in orbit. But beware, for The Goo, a relentless and shape-shifting force approaches from all sides, even above and below.
Why similar: RTS 33.3%, Base Building 29.4%, War 16.8%, Resource Management 13.9%, Strategy 6.6%
- #51 IDUN - Frontline Survival
68% matchMostly Positive79% of 718 reviews2025
Dev: IDUN InteractivePub: Surefire.Games
Windows · Mac · Linux
Median: 3.6 hrsMean: 9.8 hrs≥1hr: 74%
A defense RTS where you can move turrets at will. Extract resources, upgrade technology, and defend against enemy swarms in a gripping space campaign. Hold the line, set up your turrets, and brace for screen-filling hordes!
Why similar: RTS 21.2%, Base Building 18.2%, Building 16.7%, Space 13.7%, War 12.5%
- #52 Forged Battalion
71% matchMixed58% of 1,113 reviews2018
Dev: Petroglyph
Windows
Median: 1.0 hrsMean: 4.7 hrs≥1hr: 50%
Customize your unique faction in a new take on real-time strategy as you fight in a variety of skirmish, solo, and multiplayer battles. You are not only a commander, but also an engineer – so you have ultimate control over your faction’s units, factories, superweapons and economy.
Why similar: RTS 76.3%, Strategy 17.4%, Indie 4.9%, Singleplayer 1.4%
- #53 Operation: Polygon Storm
68% matchMixed70% of 292 reviews2024
Dev: Toxic Studio
Windows
Median: 54 minMean: 5.2 hrs≥1hr: 50%
A fastpaced, military tug-of-war game with minimal micromanagement. Choose and deploy from a mix of specialized military units to overwhelm the enemy. Experiment with a huge variety of unit compositions, synergies, abilities, and upgrades to lead your army to victory!
Why similar: RTS 24.5%, Destruction 16.7%, Military 11.3%, War 9.8%, Resource Management 8.5%
- #54 Exogate Initiative
67% 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: Base Building 20.7%, RTS 20.2%, Building 13.4%, Space 13.2%, Resource Management 10.3%
- #55 Reassembly
69% matchVery Positive94% of 4,094 reviews2015
Dev: Anisoptera GamesPub: Indie Voyage
Windows · Mac · Linux
Median: 5.0 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 40.8%, Building 36.5%, Strategy 9.5%, Sci-fi 6.2%, Indie 3.3%
- #56 Axom: Conquest
65% matchMostly Positive80% of 54 reviews2026
Dev: Hairy Penguin
Windows
Build and defend your fortress while expanding out in this hold-out tower defense roguelite. Battle across a procedural alien homeworld, fight back corrupted terrain, discover hundreds of structures and upgrades as physics-driven swarms threaten to wipe out humanity.
Why similar: RTS 26.3%, Base Building 23.2%, Space 9.9%, Building 9.5%, Military 7.4%
- #57 Etherium
70% matchMostly Negative37% of 953 reviews2015
Dev: Tindalos InteractivePub: Focus Entertainment
Windows
Median: 3.4 hrsMean: 4.2 hrs≥1hr: 90%
Etherium is a real-time strategy game set in a science-fiction universe, where three factions battle it out for a mysterious and rare resource known as ‘Etherium’.
Why similar: RTS 38.4%, Sci-fi 26%, Space 18.3%, Strategy 16.6%, Singleplayer 0.7%
- #58 Solar Expanse - Space Exploration Manager
63% matchVery Positive88% of 1,295 reviews2026
Dev: SpaceOpsPub: Games Operators
Windows
Median: 4.8 hrsMean: 14.7 hrs≥1hr: 77%
Explore the Solar System. Mine and drop asteroids. Colonize and terraform. Lead the space race and compete with other corporations on your way to profit. Watch the expansion of human race over the centuries.
Why similar: Space 34.4%, Resource Management 13.7%, Building 13.6%, Sci-fi 12.1%, Physics 9%
- #59 FATAL ERROR - RTS
66% matchVery Positive95% of 66 reviews2021
Dev: Jeffrey Lu
Windows
FATAL ERROR is a real-time strategy game on the digital battlefields of a computer world under attack. With your TAC-AID and advanced programming, you must eliminate all threats to the Mainframe and take the fight to the viruses. Discover an abstract world of limitless potential…and lurking dangers.
Why similar: RTS 32.5%, Base Building 24.6%, Building 12.1%, Robots 10.5%, Strategy 7%
- #60 Space Architect
65% matchMostly Positive75% of 300 reviews2024
Dev: Albert WiatrPub: PlayWay S.A.
Windows
Design your dream space station in Space Architect! Master the power of automation or 'hire' an army of crewmates to handle your ever-growing production. Mine asteroids, fabricate goods, and engage in interstellar trade to pay off the menacing Big Evil Corp. Will you thrive in the vastness of space?
Why similar: Base Building 30.3%, Building 18%, Space 16.3%, Resource Management 12.3%, Sci-fi 10.1%