- #1 Executive Assault 2
97% matchVery Positive83% of 1,742 reviews2023
Dev: Hesketh Studios Ltd
Windows · Mac
Median: 3.8 hrsMean: 8.3 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 27.2%, Base Building 15%, Space 13.3%, War 12.2%, Real Time Tactics 10.5%
- #2 Cosmoteer: Starship Architect & Commander
96% matchVery Positive94% of 12,688 reviews2022
Dev: Walternate Realities
Windows
Median: 19.5 hrsMean: 41.2 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 31.4%, Sci-fi 26.3%, Multiplayer 12.6%, Strategy 11.5%, Simulation 9.6%
- #3 Sins of a Solar Empire II
96% matchVery Positive84% of 8,424 reviews2024
Dev: Ironclad Games CorporationPub: Stardock Entertainment
Windows
Median: 9.5 hrsMean: 30.8 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 27.4%, Space 24.6%, Tactical 10.8%, Sci-fi 9.8%, Base Building 9.6%
- #4 NEBULOUS: Fleet Command
95% matchVery Positive82% of 4,182 reviews2022
Dev: Eridanus IndustriesPub: Hooded Horse
Windows
Median: 5.2 hrsMean: 31.7 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 24.3%, War 22.5%, Space 15.4%, Tactical 13.6%, Multiplayer 8.4%
- #5 Forged Battalion
94% matchMixed58% of 1,110 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 60.1%, Strategy 16%, Simulation 11.4%, Multiplayer 7.5%, Indie 3.9%
- #6 Void Destroyer
94% matchMixed59% of 352 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 28.3%, RTS 23.7%, Strategy 14.3%, Simulation 13.4%, Sci-fi 11.6%
- #7 Starpoint Gemini Warlords
93% matchMostly Positive73% of 3,583 reviews2017
Dev: Little Green Men Games
Windows
Median: 4.1 hrsMean: 10.9 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 33.4%, Base Building 22.8%, Sci-fi 16.4%, Strategy 11.3%, Simulation 10.5%
- #8 Planetary Annihilation: TITANS
92% matchVery Positive84% of 14,538 reviews2015
Dev: Planetary Annihilation Inc
Windows · Mac · Linux
Median: 3.9 hrsMean: 17.6 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 25.1%, Real Time Tactics 16.2%, War 13.6%, Base Building 11.9%, Space 10.1%
- #9 Space Reign
91% matchMostly Positive75% of 445 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: Real Time Tactics 20.9%, RTS 18%, Space 16.1%, War 12.3%, Sci-fi 8.9%
- #10 Starminer
90% matchMostly Positive75% of 1,687 reviews2026
Dev: CoolAndGoodGames
Windows
Median: 7.1 hrsMean: 12.3 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 22.9%, Aliens 20.4%, Space 18.5%, Base Building 14.9%, Management 11.7%
- #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 52%, Strategy 17.1%, Sci-fi 14.2%, Action 6.7%, Multiplayer 5%
- #12 Rusted Warfare - RTS
89% matchOverwhelmingly Positive96% of 7,298 reviews2017
Dev: Corroding Games
Windows · Mac · Linux
Median: 5.3 hrsMean: 33.4 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 49.5%, Base Building 20.3%, Strategy 10.2%, War 8.9%, Multiplayer 7.1%
- #13 Celestial Command
89% matchMixed63% of 699 reviews2014
Dev: Science Interactive
Windows · 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 46.1%, Simulation 17.2%, Sci-fi 14%, Strategy 12.4%, Action 5.6%
- #14 ERA ONE
86% matchVery Positive87% of 1,476 reviews2025
Dev: Team Complex LTD
Windows
Median: 3.8 hrsMean: 15.7 hrs≥1hr: 68%
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 26.4%, Real Time Tactics 25.1%, Space 18.6%, Base Building 16.4%, Strategy 6.1%
- #15 Annihilate The Spance
86% matchVery Positive91% of 353 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 25%, Base Building 18.5%, Space 17.5%, War 15.8%, Sci-fi 7.5%
- #16 Particle Fleet: Emergence
87% matchVery Positive92% of 1,271 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 31.2%, Space 24%, Strategy 17.2%, Simulation 13%, Sci-fi 8.3%
- #17 Stellar Commanders
88% 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 21.1%, Wargame 15.4%, War 15.1%, Space 12.7%, Tactical 9.7%
- #18 Starship Theory
85% matchMixed50% of 1,114 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 29%, Space 24.1%, Management 13.1%, Sci-fi 10.4%, Simulation 10.3%
- #19 Deep Space Battle Simulator
84% matchMostly Positive78% 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 29.2%, Space 20.8%, Sci-fi 13.3%, Multiplayer 10.8%, Strategy 8.8%
- #20 Sins of a Solar Empire®: Rebellion
82% matchVery Positive93% of 16,296 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 23.6%, Space 16%, Base Building 15.9%, Management 12.7%, Sci-fi 9.7%
- #21 Space Wars: Interstellar Empires
84% 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: Tactical 62.7%, Strategy 31.9%, Indie 5.4%
- #22 Starship Troopers: Terran Command
81% matchVery Positive87% of 11,887 reviews2022
Dev: The ArtistocratsPub: Slitherine Ltd.
Windows
Median: 3.4 hrsMean: 10.2 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 32.7%, War 15.4%, Strategy 11.2%, Wargame 11.2%, Tactical 10.2%
- #23 Shallow Space
83% 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 31.5%, Space 29.7%, Strategy 15.1%, Simulation 11.7%, Sci-fi 8.7%
- #24 Star Ruler
81% 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 30.7%, Strategy 20.2%, Sci-fi 11%, Indie 5.2%
- #25 Carrier Command 2
79% matchVery Positive82% of 3,699 reviews2021
Dev: GeometaPub: MicroProse Software
Windows · Mac
Median: 9.4 hrsMean: 15.6 hrs≥1hr: 92%
Carrier Command 2 is the real-time strategy game that puts you in command of a futuristic carrier capable of deploying a vast array of aircraft and amphibious units. Compete against AI or human players and hop into every single vehicle to take matters into your own hands!
Why similar: RTS 19.3%, War 16.2%, Real Time Tactics 15.8%, Wargame 14.8%, Old School 8.7%
- #26 Eternal Starlight VR
79% matchVery Positive91% of 76 reviews2021
Dev: White Noise Games
Windows
Activate your Neural Link to gain an omniscient view of the battlefield. Experience the conflict at any scale, as you plot the course that will lead your fleet to victory. Eternal Starlight is a tactical space combat game, built from the ground up for VR.
Why similar: RTS 22.4%, Real Time Tactics 14%, Space 13.8%, War 11.5%, Tactical 10.4%
- #27 Terra Invicta
76% matchVery Positive81% of 9,341 reviews2026
Dev: Pavonis InteractivePub: Hooded Horse
Windows
Median: 9.6 hrsMean: 52.0 hrs≥1hr: 80%
An alien invasion has fractured humanity into seven ideological factions each with a unique vision for the future. Lead your chosen faction to take control of Earth’s nations, expand across the Solar System, and battle enemy fleets in tactical combat.
Why similar: War 27.9%, Space 18.4%, Tactical 17%, Management 16.2%, Strategy 9.5%
- #28 Star Command Galaxies
78% matchMixed42% of 513 reviews2024
Dev: Warballoon
Windows · Mac
Take command in the ultimate starship simulator: Star Command Galaxies. Become a Captain, recruit your crew, customize and upgrade your starship, battle alien vessels, teleport to away missions and repel boarding invaders in this real-time strategy simulation adventure from indie studio Warballoon.
Why similar: RTS 25.3%, Real Time Tactics 19.1%, Space 12%, Tactical 10.2%, Sci-fi 9.4%
- #29 Stellarcraft
75% 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: Real Time Tactics 26.6%, RTS 23.1%, Base Building 21%, Sci-fi 9.9%, Multiplayer 9.2%
- #30 Homeworld Remastered Collection
77% matchVery Positive88% of 14,082 reviews2015
Dev: Gearbox SoftwarePub: Gearbox Publishing
Windows · Mac
Median: 4.7 hrsMean: 34.4 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 34%, Space 29.9%, Sci-fi 11.8%, Strategy 9.8%, Tactical 5.7%
- #31 Executive Assault
78% matchVery Positive85% of 1,457 reviews2015
Dev: Hesketh Studios Ltd
Windows
Median: 3.4 hrsMean: 7.1 hrs≥1hr: 78%
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 38.6%, Base Building 14.7%, War 14.2%, Strategy 11.9%, Sci-fi 8.3%
- #32 Gemini Wars
80% matchMostly Negative32% of 165 reviews2012
Dev: Camel 101
Windows · Mac
Median: 1.6 hrsMean: 4.0 hrs≥1hr: 94%
Take control of a fleet commander returned from exile, rise through the ranks of the United Space Federation forces and join an epic war across the stars.
Why similar: RTS 16.4%, Wargame 15.1%, War 14.7%, Space 12%, Base Building 11.5%
- #33 Angels Fall First
76% matchVery Positive82% of 2,811 reviews2015
Dev: Strangely Interactive Ltd
Windows
Median: 1.6 hrsMean: 5.9 hrs≥1hr: 61%
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 30.2%, Sci-fi 20.1%, Multiplayer 14.3%, Simulation 11.3%, Tactical 10.4%
- #34 Galaxy Reavers
77% 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 35.9%, Space 31.2%, Strategy 17.1%, Sci-fi 12.4%, Indie 3.4%
- #35 BattleGroupVR
73% matchVery Positive92% of 946 reviews2023
Dev: SpaceOwl Games
Windows · Linux
Median: 1.6 hrsMean: 4.3 hrs≥1hr: 60%
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 19.6%, Real Time Tactics 16%, Space 14.8%, War 12.1%, Tactical 9.2%
- #36 Istrolid
75% 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 29.9%, RTS 29%, Strategy 14.4%, Multiplayer 12.2%, Sci-fi 9.8%
- #37 Halcyon 6: Starbase Commander
74% matchVery Positive84% of 1,317 reviews2016
Dev: Massive Damage, Inc.
Windows · Mac · Linux
Median: 4.7 hrsMean: 6.7 hrs≥1hr: 93%
Halcyon 6: Starbase Commander is a retro space strategy RPG with base building, deep tactical combat, crew management and emergent storytelling.
Why similar: Space 37.9%, Base Building 26.6%, Strategy 18.9%, Simulation 9.4%, Indie 5.3%
- #38 Pixel Starships 2
74% matchMostly Negative27% of 377 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 19.5%, Space 16%, Real Time Tactics 16%, Wargame 14.5%, Base Building 14.3%
- #39 Outlive 25
70% matchVery Positive95% of 238 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 25.7%, Old School 15.8%, Base Building 12.6%, War 10.4%, Space 8.7%
- #40 From the Depths
71% matchVery Positive89% of 12,675 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 31.4%, War 25%, Space 18%, Multiplayer 9.9%, Strategy 8.3%
- #41 Pixel Starships
71% matchMostly Positive73% of 2,968 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 19.8%, Base Building 18.7%, Wargame 17.2%, Aliens 17.1%, Sci-fi 12.5%
- #42 Dust Fleet
72% matchMostly Positive76% of 221 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: Real Time Tactics 21.2%, Space 16.4%, Tactical 11.5%, Sci-fi 10.2%, Wargame 8.6%
- #43 Infinity: Battlescape
72% matchVery Positive80% of 756 reviews2019
Dev: I-Novae Studios, LLC
Windows
Median: 3.1 hrsMean: 10.1 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 48.4%, Simulation 19%, Sci-fi 16.9%, Action 8.9%, Indie 6.7%
- #44 Distant Worlds 2
71% matchMostly Positive71% of 3,520 reviews2022
Dev: CodeForcePub: Slitherine Ltd.
Windows
Median: 8.5 hrsMean: 41.5 hrs≥1hr: 74%
Distant Worlds 2 is a vast, pausable real-time 4X space strategy game.
Why similar: Space 30.8%, Strategy 20.5%, Sci-fi 19.3%, Simulation 17.9%, Combat 9.5%
- #45 StarMade
73% matchMixed68% of 2,985 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 49.2%, Sci-fi 15.9%, Multiplayer 14.2%, Simulation 6.9%, Strategy 6.4%
- #46 Moduwar
69% matchVery Positive87% of 133 reviews2025
Dev: Biohex StudiosPub: Firesquid
Windows · Linux
Moduwar is an adaptive organic RTS where you control an alien creature, Modu - and your body is your army. Grow new organs, split, merge and mutate them into unique units that adapt to your needs as you fight against human and alien threats in single and multiplayer modes.
Why similar: RTS 21.2%, Aliens 17.1%, War 14.3%, Base Building 13.8%, Wargame 12.6%
- #47 Shattered Void
69% 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: Real Time Tactics 29.9%, Space 24.5%, Tactical 11.1%, Sci-fi 11.1%, Simulation 7.6%
- #48 Stormgate
68% matchMixed48% of 9,184 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 27.9%, War 23.2%, Base Building 18.9%, Space 10.6%, Multiplayer 8.9%
- #49 The Last Starship
66% matchMostly Positive75% of 1,596 reviews2026
Dev: Introversion Software
Windows · Mac
Median: 6.1 hrsMean: 11.3 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: Base Building 21.4%, Space 21.4%, Sci-fi 12.9%, Combat 11.7%, Management 11%
- #50 Sins of a Solar Empire: Trinity®
70% matchMostly Positive77% of 814 reviews2011
Dev: Ironclad Games CorporationPub: Stardock Entertainment
Windows
Median: 2.0 hrsMean: 30.8 hrs≥1hr: 59%
In Sins of a Solar Empire: Trinity, you are the leader of a civilization embroiled in a galactic war, fighting for the survival of your entire race against relentless foes.
Why similar: RTS 20.5%, Aliens 14.7%, War 13.9%, Base Building 13.6%, Space 13.4%
- #51 Space Warfare
70% matchMixed58% of 95 reviews2021
Dev: Little Stories
Windows · Mac · Linux
2D casual strategy
Why similar: Space 44.8%, Strategy 40.6%, Indie 14.6%
- #52 Outworld Station
65% matchVery Positive85% of 776 reviews2026
Dev: Trickjump Games Ltd
Windows
Median: 4.2 hrsMean: 10.7 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 21.1%, Base Building 20%, Space 19.8%, Management 11.9%, Sci-fi 8%
- #53 War Selection
67% matchVery Positive85% of 23,286 reviews2019
Dev: Glyph Worlds
Windows · Linux
Median: 2.6 hrsMean: 27.9 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 31.3%, Base Building 25.2%, War 15.8%, Strategy 11.1%, Multiplayer 9.6%
- #54 Stellar Tactics
65% matchMostly Positive78% of 1,691 reviews2026
Dev: Don WilkinsPub: Maverick Games
Windows
Median: 3.0 hrsMean: 14.6 hrs≥1hr: 68%
A Sci-Fi role-playing game featuring turn-based ground combat, space exploration, deep character customization and a massive living universe with thousands of star systems. Equip your ships with the best equipment you can find, gather a powerful crew of mercenaries and set out into the void!
Why similar: Space 41.3%, Tactical 30.1%, Sci-fi 25.1%, Singleplayer 3.4%
- #55 Interstellar Rift
68% matchMixed68% of 1,660 reviews2020
Dev: Split PolygonPub: Iceberg Interactive
Windows
Median: 4.2 hrsMean: 33.4 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: Aliens 35.6%, Space 30.6%, Sci-fi 17.5%, Simulation 10.9%, Action 5.4%
- #56 Star Tactics Redux
69% matchVery Positive87% of 61 reviews2016
Dev: Devil's Dozen Games
Windows
Median: 4.1 hrsMean: 4.9 hrs≥1hr: 98%
Turn-based strategy game full of spacefleet battles. 30+ hours of gameplay, randomized battles, huge campaign with different ways of completion. Experience infinite tactical situations and outsmart the tricky AI using dozens of ships and special abilities.
Why similar: Strategy 44.5%, Simulation 39.6%, Indie 15.9%
- #57 Starbase
67% matchMixed56% of 6,732 reviews2021
Dev: Frozenbyte
Windows
Median: 14.3 hrsMean: 91.4 hrs≥1hr: 91%
Starbase is a hybrid voxel/vertex-based space MMO with a fully destructible and infinitely expanding universe, with a focus on building and designing spaceships and stations, exploration, resource gathering, crafting, trading, and combat.
Why similar: Space 41.6%, Sci-fi 23.3%, Simulation 16.8%, Multiplayer 12.1%, Action 6.2%
- #58 Five Nations
67% matchVery Positive83% of 267 reviews2021
Dev: SilverForge
Windows
Five Nations is a real-time sci-fi strategy game for PC platform. Encompassing tactical combat in space in real-time mixed with micromanagement of economy, construction, and production featuring different kind of single player modes.
Why similar: RTS 28.7%, Aliens 14.4%, Space 13.3%, Sci-fi 9.4%, Strategy 8.7%