- #1 Cosmoteer: Starship Architect & Commander
97% matchVery Positive94% of 12,599 reviews2022
Dev: Walternate Realities
Windows
Median: 19.4 hrsMean: 41.0 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 23.3%, Sci-fi 19.7%, Online Co-Op 16%, Multiplayer 10.9%, Strategy 8.5%
- #2 Sins of a Solar Empire II
96% matchVery Positive84% of 8,352 reviews2024
Dev: Ironclad Games CorporationPub: Stardock Entertainment
Windows
Median: 9.5 hrsMean: 30.1 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 24.5%, Space 22.7%, Sci-fi 9.2%, Co-op 9.1%, Strategy 8.3%
- #3 Executive Assault 2
95% matchVery Positive83% of 1,738 reviews2023
Dev: Hesketh Studios Ltd
Windows · Mac
Median: 3.8 hrsMean: 8.4 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 39%, Space 19.9%, Co-op 10%, Multiplayer 9.9%, Sci-fi 9.7%
- #4 Forged Battalion
96% matchMixed58% of 1,109 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 57.9%, Strategy 15.9%, Simulation 11.8%, Multiplayer 8.7%, Indie 4.4%
- #5 Sins of a Solar Empire®: Rebellion
94% matchVery Positive93% of 16,284 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: RTS 19.7%, Space 13.7%, Management 12.1%, Online Co-Op 11.8%, Co-op 10%
- #6 NEBULOUS: Fleet Command
93% matchVery Positive81% of 3,880 reviews2022
Dev: Eridanus IndustriesPub: Hooded Horse
Windows
Median: 4.9 hrsMean: 31.0 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 38.4%, Co-op 19%, Multiplayer 15.9%, Strategy 12%, Simulation 11.5%
- #7 Void Destroyer
94% matchMixed60% of 351 reviews2015
Dev: Iteration 11
Windows
Median: 18 minMean: 3.2 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 29.9%, RTS 24.2%, Strategy 15.1%, Simulation 14.7%, Sci-fi 12.4%
- #8 Particle Fleet: Emergence
92% matchVery Positive92% of 1,269 reviews2016
Dev: Knuckle Cracker
Windows · Mac · Linux
Median: 6.8 hrsMean: 24.9 hrs≥1hr: 76%
Build and design your own fleets and stand opposed to the Particulate in this physics/strategy/RTS/fleet hybrid. Build partially destructible and self repairing ships that interact with enemies less controlled by some scripted logic and more driven by a real time massive physics particle simulation.
Why similar: RTS 30.3%, Space 23.3%, Strategy 17.3%, Simulation 13.5%, Sci-fi 8.4%
- #9 Istrolid
91% 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 29.3%, RTS 27.6%, Strategy 14.1%, Multiplayer 14%, Sci-fi 9.7%
- #10 Outworld Station
89% matchVery Positive86% of 714 reviews2026
Dev: Trickjump Games Ltd
Windows
Median: 3.9 hrsMean: 10.3 hrs≥1hr: 70%
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: RTS 17.6%, Space 16.8%, Management 11.3%, Co-op 11.3%, PvE 7.7%
- #11 WARSHIFT
91% matchMostly Positive71% of 698 reviews2016
Dev: Cyril Megem
Windows
Median: 2.6 hrsMean: 3.6 hrs≥1hr: 78%
Unique mix of Action, RTS and RPG gameplay elements that forms an innovative game genre. You can build base, manage troops, and then come down to keep your enemy at gunpoint in the dynamic battle and customize your main characters.
Why similar: RTS 54%, Strategy 18.3%, Sci-fi 15.4%, Multiplayer 6.3%, Indie 6%
- #12 Starpoint Gemini Warlords
90% matchMostly Positive73% of 3,581 reviews2017
Dev: Little Green Men Games
Windows
Median: 4.1 hrsMean: 11.0 hrs≥1hr: 87%
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 42.4%, Sci-fi 21.2%, Strategy 14.4%, Simulation 13.9%, Indie 4.5%
- #13 Planetary Annihilation: TITANS
89% matchVery Positive84% of 14,514 reviews2015
Dev: Planetary Annihilation Inc
Windows · Mac · Linux
Median: 3.9 hrsMean: 17.5 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 29.4%, Space 12.1%, Online Co-Op 10.7%, Co-op 9.5%, PvP 8.6%
- #14 Zero-K
88% matchVery Positive94% of 4,280 reviews2018
Dev: Zero-K Team
Windows · Linux
Median: 2.3 hrsMean: 33.4 hrs≥1hr: 67%
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 41.8%, Strategy 13.2%, Multiplayer 11%, Online Co-Op 8.3%, Co-op 8.3%
- #15 Rusted Warfare - RTS
86% matchOverwhelmingly Positive96% of 7,206 reviews2017
Dev: Corroding Games
Windows · Mac · Linux
Median: 5.3 hrsMean: 33.1 hrs≥1hr: 78%
{{An RTS inspired by the classics of the past!}} Making up for it's subpar retro graphics with fun gameplay and modern multi-threaded tech enabling huge battles to run smooth... Featuring singleplayer challenges, skirmish, sandbox, 10-player multiplayer & workshop modding.
Why similar: RTS 62.8%, Strategy 13.4%, Multiplayer 10.9%, Co-op 8.7%, Indie 2.7%
- #16 Celestial Command
87% matchMixed63% of 698 reviews2014
Dev: Romenics
Windows · Mac · Linux
Median: 1.5 hrsMean: 6.3 hrs≥1hr: 62%
Mine asteroids, salvage space debris, design your own small or massive spacecraft using individual functional components, complete missions, and engage in battles against enemies in a vast galaxy with realistic physics based on orbital mechanics or in a classic physics mode.
Why similar: Space 48.1%, Simulation 18.7%, Sci-fi 14.7%, Strategy 12.9%, Indie 5.6%
- #17 Stellarcraft
84% matchVery Positive91% of 100 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: RTS 21.6%, Online Co-Op 17.7%, Co-op 15.8%, PvP 14.5%, Multiplayer 10.4%
- #18 Stellar Commanders
86% matchMixed58% of 101 reviews2020
Dev: Blindflug Studios AG
Windows
Conquer the stars in this straightforward multiplayer real-time strategy game from the creators of First Strike and become a Stellar Commander!
Why similar: RTS 24.1%, Wargame 18.8%, Space 15%, PvP 9.7%, Sci-fi 9%
- #19 ERA ONE
83% matchVery Positive87% of 1,422 reviews2025
Dev: Team Complex LTD
Windows
Median: 3.7 hrsMean: 15.9 hrs≥1hr: 67%
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 34.5%, Space 24.3%, PvP 14.2%, Strategy 8.3%, Sci-fi 6.8%
- #20 Star Ruler
84% 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 32.3%, RTS 29.7%, Strategy 20.2%, Sci-fi 11.1%, Indie 5.8%
- #21 Shallow Space
85% matchMostly Negative25% of 231 reviews2015
Windows · Mac · Linux
Median: 3.8 hrsMean: 5.0 hrs≥1hr: 95%
Construct your Taskforce and lead your forces to domination in the ultimate Fleet Warfare RTS!
Why similar: RTS 31.7%, Space 30.8%, Strategy 15.7%, Simulation 12.6%, Sci-fi 9.1%
- #22 Stormgate
79% matchMixed48% of 9,165 reviews2025
Dev: Frost Giant Studios
Windows
Median: 54 minMean: 5.4 hrs≥1hr: 47%
Stormgate is a free-to-play real-time strategy game with a full single-player campaign, 3-player co-op, and PvP versus modes on over 60 maps. Our Editor is also freely available for you to craft just about any custom game mode you can imagine. Join our development journey today!
Why similar: RTS 32.4%, Space 12.7%, Multiplayer 12.4%, PvP 11.4%, Co-op 9.3%
- #23 Deep Space Battle Simulator
81% matchMostly Positive79% of 411 reviews2021
Dev: yeswecamp
Windows · Linux
Median: 42 minMean: 3.7 hrs≥1hr: 37%
Two teams of players control their capital ship in an epic battle. Customize your ship, control its movement, weapons, and energy distribution or go to one of the hangars to join the battle in a smaller fighter!
Why similar: RTS 29%, Space 21.2%, Sci-fi 13.7%, Multiplayer 13%, Strategy 9%
- #24 Space Wars: Interstellar Empires
82% matchMixed65% of 243 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: Strategy 84%, Indie 16%
- #25 Starship Corporation
82% matchMixed42% of 557 reviews2018
Dev: Coronado GamesPub: Iceberg Interactive
Windows
Median: 4.3 hrsMean: 9.7 hrs≥1hr: 89%
A sci-fi simulation game, in which players must design, assemble and test spaceships, in a bid to build a supreme Galactic Mega-Corporation. Gain your reputation by engineering and selling your own spacecraft, testing them to the limit in RTS missions and simulated emergency and combat situations.
Why similar: Management 27%, Space 22.7%, Simulation 19.5%, Strategy 16.3%, Sci-fi 8.1%
- #26 StarMade
80% matchMixed68% of 2,982 reviews2014
Dev: Schine GmbH
Windows · Mac · Linux
Median: 1.3 hrsMean: 18.8 hrs≥1hr: 54%
The ultimate space sandbox. Participate in epic fleet battles, form alliances, strive to dominate entire galaxies and harness the universe’s resources for your industrious empire or the destruction of others. Customise your experience, the universe is yours!
Why similar: Space 45.5%, Multiplayer 15.5%, Sci-fi 14.9%, Co-op 7.3%, Simulation 6.6%
- #27 Infinity: Battlescape
79% matchVery Positive80% of 754 reviews2019
Dev: I-Novae Studios, LLC
Windows
Median: 3.1 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: Space 45.2%, Simulation 18.1%, Sci-fi 16%, PvP 8.3%, Indie 7.1%
- #28 War Selection
77% matchVery Positive85% of 23,196 reviews2019
Dev: Glyph Worlds
Windows · Linux
Median: 2.6 hrsMean: 27.6 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: RTS 34.8%, Multiplayer 12.9%, Strategy 12.7%, Online Co-Op 10.5%, PvP 7.6%
- #29 From the Depths
76% matchVery Positive89% of 12,623 reviews2020
Dev: Brilliant Skies Ltd.
Windows · Mac · Linux
Median: 4.2 hrsMean: 40.6 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 40.1%, Space 23.7%, Multiplayer 15.2%, Strategy 10.9%, Simulation 10.1%
- #30 Hades' Star
78% matchMostly Positive73% of 2,651 reviews2019
Dev: Parallel Space Inc
Windows · Mac
Median: 1.6 hrsMean: 55.0 hrs≥1hr: 55%
A unique space strategy game where thousands of players participate in one shared galaxy.
Why similar: Space 31.6%, RTS 15.9%, Strategy 10%, Sci-fi 9.1%, Online Co-Op 7.4%
- #31 Avorion
74% matchVery Positive90% of 14,391 reviews2020
Dev: Boxelware
Windows · Mac · Linux
Median: 18.7 hrsMean: 99.8 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 30%, Management 18%, PvE 17%, Sci-fi 16.7%, Simulation 10.6%
- #32 Homeworld 3
75% matchMixed41% of 8,597 reviews2024
Dev: Blackbird InteractivePub: Gearbox Publishing
Windows
Median: 4.7 hrsMean: 60.0 hrs≥1hr: 72%
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 24.4%, Space 17.6%, Sci-fi 8.7%, Co-op 8.4%, Multiplayer 6.5%
- #33 BattleGroupVR
73% matchVery Positive92% of 946 reviews2023
Dev: SpaceOwl Games
Windows · Linux
Median: 1.7 hrsMean: 4.4 hrs≥1hr: 61%
BattleGroupVR is a first person real-time space strategy where you lead a fleet of powerful warships into battle from the bridge of your own flagship. Assemble your fleet, upgrade your load-outs, train your captains, engage the enemy and secure the sector. Try not to go down with the ship.
Why similar: RTS 23.8%, Space 18.5%, Co-op 12.8%, Sci-fi 10.5%, PvP 10%
- #34 Starship Theory
76% matchMixed50% of 1,101 reviews2017
Dev: Reconnect Software
Windows · Mac · Linux
Median: 7.3 hrsMean: 15.3 hrs≥1hr: 78%
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 31.5%, Management 19%, Simulation 14%, Sci-fi 13.8%, Strategy 13%
- #35 Space Reign
71% matchMostly Positive75% of 431 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 28.1%, Space 25.5%, Sci-fi 14.5%, Strategy 8.3%, Combat 7.3%
- #36 Angels Fall First
73% matchVery Positive82% of 2,800 reviews2015
Dev: Strangely Interactive Ltd
Windows
Median: 1.7 hrsMean: 5.9 hrs≥1hr: 62%
From commanding the battle standing on the bridge of your flagship all the way down to tactical infantry firefights - AFF brings together all the combat you ever wanted in a rich science fiction setting. Boarding, pilotable capital ships, deep weapon customization and full AI support included!
Why similar: Space 32.6%, Sci-fi 22%, Multiplayer 18.1%, Simulation 12.7%, Co-op 6.7%
- #37 Space Warfare
74% matchMixed58% of 95 reviews2021
Dev: Little Stories
Windows · Mac · Linux
2D casual strategy
Why similar: Space 43.9%, Strategy 39.9%, Indie 16.2%
- #38 Distant Worlds 2
71% matchMostly Positive71% of 3,504 reviews2022
Dev: CodeForcePub: Slitherine Ltd.
Windows
Median: 8.6 hrsMean: 42.1 hrs≥1hr: 75%
Distant Worlds 2 is a vast, pausable real-time 4X space strategy game.
Why similar: Space 29.1%, Strategy 19.4%, Sci-fi 18.5%, Simulation 17.6%, Combat 7.7%
- #39 Worbital
72% matchVery Positive89% of 477 reviews2019
Dev: Team Jolly Roger
Windows · Mac
Median: 4.1 hrsMean: 8.8 hrs≥1hr: 85%
With the shifting gravity on your side, aim your cannons, blast your enemies and enjoy the fireworks. Worbital is a real-time strategic artillery game in space, peppered with a heavy dose of cosmic chaos. The goal: be the last civilization standing!
Why similar: RTS 21.5%, Space 15.3%, Online Co-Op 12.5%, Co-op 11.5%, PvP 11%
- #40 Pixel Starships 2
72% matchMostly Negative26% of 367 reviews2025
Dev: SavySoda
Windows · Mac
First Glimpse on Steam Next: Build, Configure, and Manage every aspect of your own Starship. An FTL-esque game in a MMO setting. Pre bundled with deep strategy, exploration, PVP, market economy, trading, mining. Basically everything a star captain wants to do after a day at the office :)
Why similar: RTS 25.8%, Space 21.9%, Wargame 20.6%, Sci-fi 12.1%, Strategy 8.4%
- #41 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: RTS 35%, Space 31.3%, Strategy 17.3%, Sci-fi 12.6%, Indie 3.9%
- #42 Between the Stars
69% matchMostly Positive75% of 2,444 reviews2024
Dev: Isolated Games
Windows
Median: 54 minMean: 8.8 hrs≥1hr: 49%
Become the Captain of an interstellar cruiser and journey across the galaxy to save the Republic. During your journey you will have to make important decisions, improve the weaponry of your ship and fight against numerous enemies.
Why similar: Space 39.9%, Sci-fi 13.9%, Simulation 13.5%, Strategy 11.6%, Roguelite 9.4%
- #43 Annihilate The Spance
68% matchVery Positive91% of 345 reviews2025
Dev: Skyglow Softworks
Windows
An RTS base builder with huge battles, constant production, and autonomous ships. The Spance approaches, a vast and mysterious storm at the edge of humanity. Who shall claim its riches? Brave the perils of the depths in a story-rich singleplayer campaign with numerous distinct factions and bosses.
Why similar: RTS 36.9%, Space 26.7%, Sci-fi 11.6%, Strategy 8.4%, PvE 4.6%
- #44 Interstellar Rift
71% matchMixed68% of 1,660 reviews2020
Dev: Split PolygonPub: Iceberg Interactive
Windows
Median: 4.2 hrsMean: 33.5 hrs≥1hr: 83%
Interstellar Rift is an open world starship simulator with an emphasis on ship construction and multi-player interaction. Survive in a hostile galaxy with your own custom designed and constructed starship. Invite other players to join your crew or fight them across the galaxy!
Why similar: Space 30.6%, PvP 21.8%, Sci-fi 17.7%, Simulation 11.4%, Atmospheric 10.1%
- #45 Shattered Void
70% matchMostly Positive72% of 93 reviews2024
Dev: yyy1505yyy
Windows · Linux
Space MMORPG where players can fly on different ships, collecting devices, subsystems and navigations or finding new weapons that will serve in battles. Take part in battles, explore the world, mine ore, trade, fight and build your own clan with a station.
Why similar: Space 29.1%, PvP 19%, PvE 14.7%, Sci-fi 13.3%, Simulation 9.4%
- #46 Starship EVO
69% matchVery Positive84% of 1,435 reviews2020
Dev: Moonfire Entertainment
Windows
Median: 1.5 hrsMean: 6.4 hrs≥1hr: 57%
Mine and craft your way to orbit, build your own starship and explore a vast, dangerous galaxy alongside your crew. For players who love a meaningful survival progression, a unique and elegant building system, and epic space-opera scale.
Why similar: Space 44.9%, Simulation 19.5%, Sci-fi 15.8%, Multiplayer 11.2%, Indie 8.5%
- #47 Ashes of the Singularity: Escalation
70% matchMostly Positive74% of 4,943 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 31.1%, Online Co-Op 13.8%, PvP 13.5%, Sci-fi 10.2%, Co-op 9.4%
- #48 Star Ruler 2
70% 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: RTS 34.7%, Space 30.3%, Sci-fi 16.3%, Strategy 15%, Indie 3.7%
- #49 TDS - Tower Defense Strategy
67% matchVery Positive81% of 363 reviews2025
Dev: Blockage
Windows · Mac · Linux
TOWER ▪ DEFENSE ▪ STRATEGY. Control Vessels. Utilize their uniquely deep set of towers. Create an everchanging defense. Play with friends. Protect your Basin at all costs. An absolute Tower Defense, Real-Time Strategy Hybrid
Why similar: RTS 29.7%, Co-op 14.7%, Online Co-Op 12.8%, Multiplayer 9.9%, PvE 9.8%
- #50 Homeworld Remastered Collection
69% matchVery Positive88% of 14,058 reviews2015
Dev: Gearbox SoftwarePub: Gearbox Publishing
Windows · Mac
Median: 4.7 hrsMean: 34.2 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: RTS 33.8%, Space 30.4%, Sci-fi 12.2%, Strategy 10.1%, Multiplayer 5.7%
- #51 Pixel Starships
67% matchMostly Positive73% of 2,939 reviews2023
Dev: SavySoda
Windows · Mac · Linux
Median: 2.2 hrsMean: 24.5 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%, Wargame 27.1%, Sci-fi 19.1%, Multiplayer 12.1%, Strategy 11.7%
- #52 The Last Starship
64% matchMostly Positive75% of 1,491 reviews2026
Dev: Introversion Software
Windows · Mac
Median: 6.1 hrsMean: 11.2 hrs≥1hr: 81%
The Last Starship is a 2D space construction game where you design and upgrade your starship. Choose your path: pirate hunter, miner, engineer, spacebus driver, and more, whilst exploring vibrant star systems. Enjoy a growing sandbox world, with regular free updates. Your cosmic adventure awaits!
Why similar: Space 26.9%, Sci-fi 16.4%, Management 15.3%, Combat 12.8%, Strategy 11%
- #53 Down with the Ship
63% matchVery Positive95% of 360 reviews2026
Dev: Iron Anchor GamesPub: Proxy Studios
Windows · Mac
Strategic auto battler where you design a heavily-armed spaceship. Draft 200+ items, outfit your hull, and unleash it in async PvP. Blend captains and factions for absurd combos and galactic domination. Roll, buy, place, pray.
Why similar: Space 23%, Roguelite 17.1%, PvP 16.1%, Sci-fi 13%, Multiplayer 12.6%
- #54 Starfighter: Infinity
68% matchVery Positive91% of 129 reviews2019
Dev: Ben Olding Games
Windows · Mac · Linux
A space based MMORPG with a focus on ‘dogfighting’ style action and exploration. Features a huge array of ships, imaginative weapons and ship upgrades with more being added all the time. Explore the galaxy, fight other players, form your own organisations, mine asteroids to craft new items, loot rare weapons from alien races, and more...
Why similar: Space 72%, Indie 28%
- #55 Industrial Annihilation
67% matchMostly Negative32% of 424 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 29.1%, Wargame 22.5%, Strategy 11.6%, Management 10.8%, Sci-fi 7.6%