- #1 Creeper World 3: Arc Eternal
97% matchOverwhelmingly Positive96% of 4,761 reviews2014
Dev: Knuckle Cracker
Windows · Mac · Linux
Median: 7.4 hrsMean: 77.0 hrs≥1hr: 78%
Creeper World 3 is what happens when cellular automata takes over a strategy simulation. Instead of discrete units that attack your base, a fluid-like substance spreads over the terraformable terrain. Your base, your weapons, your strategy... you must adapt them all.
Why similar: Real-Time with Pause 23.5% ★, Strategy 21.6%, Tower Defense 21%, RTS 18.6%, Sci-fi 5%
Why You'll Like It: This game shares the exact same DNA as the seed, focusing on managing resources and building structures to hold back a relentless, flowing enemy.
- #2 Creeper World 4
96% matchVery Positive95% of 4,620 reviews2020
Dev: Knuckle Cracker
Windows
Median: 12.2 hrsMean: 29.4 hrs≥1hr: 88%
The unstoppable fluid enemy has returned and destroyed every world in its path! Defend against Creeper as it floods across the 3D terrain in this real time strategy game where the enemy is a fluid.
Why similar: RTS 30.2%, Space 22.8%, Strategy 17.2%, Tower Defense 11.5%, Simulation 10.7%
Why You'll Like It: Developed by the same creator, this title evolves the core fluid-simulation strategy mechanics into a 3D environment.
- #3 Cosmoteer: Starship Architect & Commander
96% matchVery Positive95% of 12,431 reviews2022
Dev: Walternate Realities
Windows
Median: 19.3 hrsMean: 40.4 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: Real-Time with Pause 31.6% ★, Space 21.1%, Strategy 15.1%, Sci-fi 11%, Simulation 9.6%
Why You'll Like It: Offers deep, physics-based ship design and tactical combat that mirrors the engineering satisfaction found in Particle Fleet.
- #4 Reassembly
95% matchVery Positive94% of 4,066 reviews2015
Dev: Anisoptera GamesPub: Indie Voyage
Windows · Mac · Linux
Median: 5.1 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 50.3%, Strategy 28.2%, Indie 8%, Sci-fi 6.4%, 2D 3.6%
Why You'll Like It: Features a modular ship-building system and a physics-driven universe that rewards creative design and tactical positioning.
- #5 Homeworld Remastered Collection
94% matchVery Positive88% of 13,977 reviews2015
Dev: Gearbox SoftwarePub: Gearbox Publishing
Windows · Mac
Median: 4.6 hrsMean: 34.0 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 33.1%, Space 32.7%, Strategy 20.9%, Sci-fi 8.1%, Simulation 4.9%
Why You'll Like It: The quintessential space RTS that defines the genre of fleet-based tactical combat in three-dimensional space.
- #6 NEBULOUS: Fleet Command
93% matchVery Positive81% of 3,819 reviews2022
Dev: Eridanus IndustriesPub: Hooded Horse
Windows
Median: 4.9 hrsMean: 30.4 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: Real-Time with Pause 41.8% ★, RTS 26.8%, Strategy 17.8%, Simulation 12.6%, Singleplayer 1%
Why You'll Like It: Provides a highly realistic, physics-based tactical space combat experience that emphasizes ship design and sensor management.
- #7 Gratuitous Space Battles 2
94% matchMostly Negative39% of 307 reviews2015
Dev: Positech Games
Windows · Mac · Linux
Median: 3.0 hrsMean: 4.2 hrs≥1hr: 79%
Have you ever wanted to be admiral of a huge, sprawling space battle-fleet of your own design? Ever wanted to design a fleet of battle-cruisers so powerful they can rip all who oppose them into space-dust? Ever wanted to build a battleship with purple rotating radars and 64 engines? Well we have good news for you...
Why similar: Strategy 35.5%, Space 26.5%, Simulation 21.8%, Indie 10%, Sci-fi 6.2%
Why You'll Like It: Allows you to design complex fleets and watch them execute tactical maneuvers in large-scale, automated space battles.
- #8 Mindustry
92% matchOverwhelmingly Positive96% of 25,660 reviews2019
Dev: AnukenDev
Windows · Mac · Linux
Median: 4.9 hrsMean: 26.9 hrs≥1hr: 76%
An open-ended factory management game with RTS and tower defense elements.
Why similar: Strategy 37%, RTS 28.7%, Tower Defense 24.4%, Indie 4.2%, Pixel Graphics 2.8%
Why You'll Like It: Combines tower defense, automation, and real-time strategy in a way that feels mechanically similar to the resource-flow management of the seed game.
- #9 The White Laboratory
91% matchMostly Positive78% of 361 reviews2019
Dev: Laboratory Systems
Windows
The White Laboratory is a sandbox style physics-based tower defense and RTS game in which you modularly build and command robotic structures. Use them to defend against or conquer other disobedient mechanical blocks on a facility floating in the atmosphere of a remote gas planet.
Why similar: Strategy 29.8%, Real-Time with Pause 27.5% ★, RTS 16.9%, Indie 10.7%, Tower Defense 10.1%
Why You'll Like It: A physics-based strategy game where you build and command modular units to survive against overwhelming odds.
- #10 AI War 2
90% matchVery Positive88% of 1,533 reviews2019
Dev: Arcen Games
Windows · Mac · Linux
Median: 3.0 hrsMean: 5.6 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 31.8%, Space 21.9%, Strategy 15.3%, Tower Defense 11.4%, Simulation 11.2%
Why You'll Like It: Focuses on asymmetric, massive-scale warfare against an intelligent, non-scripted enemy force that requires strategic planning.
- #11 Nomad Fleet
91% matchMixed67% of 212 reviews2016
Dev: Autarca
Windows · Mac · Linux
Median: 3.1 hrsMean: 3.2 hrs≥1hr: 79%
Nomad Fleet is a RTS game where you must lead the last remnants of Mankind to safety after a mysterious alien race has hunted them near extinction. Lead a fully armed fleet of battleships, carriers and fighters through a series of randomized scenarios and encounters where they must fight for their survival while scavenging for resources,...
Why similar: Strategy 32.6%, Space 25.5%, RTS 23.7%, Indie 9.5%, Sci-fi 8.1%
Why You'll Like It: A classic-style space RTS that emphasizes fleet management and survival against a persistent, encroaching threat.
- #12 Voidship: The Long Journey
89% matchMostly Positive74% of 148 reviews2019
Dev: Cydonian Games
Windows
Design your battleship and fight your way through unforgiving space. This is a tale of a lone spaceship on a centuries-long mission. As the captain, you´ll make strategic decisions, explore unknown sectors, meet allies and enemies, gather resources, technology and crew. To battle stations!
Why similar: Strategy 25.1%, Space 19.2%, Real-Time with Pause 18.3% ★, Simulation 17.9%, Indie 9.4%
Why You'll Like It: Combines ship building with tactical combat, requiring you to manage systems and weaponry during real-time encounters.
- #13 Space Run
88% matchVery Positive85% of 2,123 reviews2014
Dev: Passtech GamesPub: Focus Entertainment
Windows · Mac · Linux
Median: 5.1 hrsMean: 7.2 hrs≥1hr: 93%
Space Run is a «real-time spaceship construction strategy game». Space Run takes the well-known Tower Defense-style gameplay and twists it, challenging you to manage and protect a spaceship and its cargo against the hazards of deep space!
Why similar: Space 35.5%, Strategy 28.6%, Tower Defense 21.8%, Sci-fi 7.2%, Indie 6.4%
Why You'll Like It: A tower-defense hybrid that forces you to build and manage ship modules in real-time to protect cargo from enemy waves.
- #14 Battlevoid: Sector Siege
89% matchMixed58% of 194 reviews2017
Dev: Bugbyte Ltd.
Windows · Mac · Linux
Battlevoid: Sector Siege is an epic straight into action real-time space strategy game, in which the world has been built to deliver a lively battle field; and the action is never more than just seconds away at the start of every game.
Why similar: Strategy 20.1%, Space 19.3%, Real-Time with Pause 17.9% ★, RTS 17.2%, Simulation 13%
Why You'll Like It: A real-time strategy game that focuses on ship customization and managing fleet compositions in a hostile galaxy.
- #15 Distant Star: Revenant Fleet
87% matchMixed66% of 297 reviews2015
Dev: Blazing Griffin
Windows · Mac · Linux
Median: 5.8 hrsMean: 7.3 hrs≥1hr: 89%
BAFTA award winning fleet-based RTS meets rogue-lite. In Distant Star: Revenant Fleet, build your fleet of up to 5 ships from a choice of 8 classes and traverse a randomly generated galaxy to defeat the Erebus Platform. NOW AVAILABLE ON MAC AND LINUX
Why similar: Space 29%, Strategy 25%, RTS 23.4%, Sci-fi 10.7%, Indie 9.8%
Why You'll Like It: A tactical space strategy game where you manage a small fleet and make critical decisions during intense real-time skirmishes.
- #16 Star Ruler 2
86% matchVery Positive82% of 719 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 29.5%, Space 28.3%, Strategy 27.2%, Sci-fi 9.3%, Indie 5.6%
Why You'll Like It: Features an incredibly deep ship-design system and massive-scale RTS combat that appeals to players who enjoy engineering their own fleets.
- #17 Galaxy Reavers
86% matchMixed70% of 204 reviews2016
Dev: Good Games
Windows
This is a fun yet challenging RTS game. To survive in the vast galaxy, you need to build up your own fleet and customize your warships. You will also learn to control them efficiently in battle to defeat your enemies, conquer planets, and expand your galactic empire!
Why similar: Strategy 30.2%, RTS 28.8%, Space 28.3%, Sci-fi 7%, Indie 5.7%
Why You'll Like It: Focuses on real-time fleet tactics and ability management, providing a fast-paced strategic experience.
- #18 rymdkapsel
85% matchVery Positive83% of 277 reviews2014
Dev: grapefrukt games
Windows · Mac · Linux
Median: 2.1 hrsMean: 4.4 hrs≥1hr: 76%
Build a space station. Command the tiny crew. Explore the galaxy. A meditative space strategy game.
Why similar: RTS 34.2%, Space 20.1%, Strategy 19.6%, Tower Defense 12.1%, Indie 4.1%
Why You'll Like It: A minimalist, highly focused RTS that emphasizes base building and resource management in a clean, space-themed environment.
- #19 Battlevoid: Harbinger
84% matchMostly Positive79% of 1,057 reviews2016
Dev: Bugbyte Ltd.
Windows · Mac · Linux
Median: 1.8 hrsMean: 11.0 hrs≥1hr: 56%
Battlevoid: Harbinger is a hard sci-fi space exploration game blending roguelike, turn-based, star map strategy, and real-time space battles. You are a young commander venturing out into enemy territories, to unknown galaxies, never knowing what you will face as you jump out from hyperspace.
Why similar: Space 31.8%, Strategy 24.9%, Real-Time with Pause 16.8% ★, Simulation 14.1%, Indie 5.2%
Why You'll Like It: A roguelike strategy game that forces you to adapt your fleet design to survive increasingly difficult encounters.
- #20 Void Destroyer
84% matchMixed60% of 351 reviews2015
Dev: Iteration 11
Windows
Median: 18 minMean: 3.0 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 25.8%, Strategy 25.2%, RTS 19%, Simulation 18.2%, Sci-fi 6.6%
Why You'll Like It: A unique blend of space combat, simulation, and strategy that allows for a high degree of control over your fleet's actions.
- #21 Starship Theory
83% matchMixed50% of 1,100 reviews2017
Dev: Reconnect Software
Windows · Mac · Linux
Median: 7.4 hrsMean: 15.5 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 25.5%, Real-Time with Pause 22.8% ★, Strategy 20.5%, Simulation 16.2%, Sci-fi 6.9%
Why You'll Like It: A survival-based ship management game that requires you to build and maintain your vessel while under constant threat.
- #22 Dust Fleet
80% matchMostly Positive76% of 209 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 29.3%, Strategy 24.8%, Simulation 14.8%, RTS 13%, Sci-fi 11.3%
Why You'll Like It: A modern 4X and real-time tactics hybrid that allows for detailed ship design and large-scale fleet engagements.
- #23 Phantom Signal — Sci-Fi Strategy Game
82% matchVery Positive85% of 155 reviews2018
Dev: Veslo Games
Windows · Mac · Linux
Median: 4.6 hrsMean: 5.9 hrs≥1hr: 94%
Phantom Signal is a real-time sci-fi strategy game with unusual mechanics. Explore mysterious star systems and reveal the secret of the phantom signal.
Why similar: Strategy 31.1%, Space 21.7%, Simulation 13.4%, RTS 11.5%, Tower Defense 10.1%
Why You'll Like It: A tower-defense and strategy hybrid that focuses on defending space sectors against incoming hostile forces.
- #24 Ancient Space
82% matchMixed44% of 365 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 31.4%, Space 30.2%, Strategy 29.7%, Sci-fi 6.7%, Indie 1.2%
Why You'll Like It: A story-driven space RTS that emphasizes fleet composition and tactical positioning in deep space.
- #25 Celestial Command
81% matchMixed63% of 687 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 40.8%, Simulation 22.6%, Strategy 21.2%, Sci-fi 7.7%, Indie 7.6%
Why You'll Like It: A space simulation game with a strong focus on physics-based construction and orbital mechanics.
- #26 Unending Galaxy
81% matchMixed62% of 124 reviews2016
Dev: Anarkis Gaming
Windows
Median: 3.3 hrsMean: 3.6 hrs≥1hr: 91%
Unending Galaxy is a unique space-sim in which you can fill any role from pirate or trader to the leader of a large galactic empire.
Why similar: Strategy 26.8%, Real-Time with Pause 19.9% ★, Simulation 19.4%, Space 18.9%, Indie 8.9%
Why You'll Like It: A sandbox space strategy game that offers a deep simulation of galactic politics and fleet-based warfare.
- #27 Star Tactics Redux
79% matchVery Positive87% of 60 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 49.6%, Simulation 33.7%, Indie 16.7%
Why You'll Like It: A tactical space combat game that focuses on maneuvering and positioning during turn-based or real-time encounters.
- #28 AI War: Fleet Command
78% matchVery Positive82% of 1,594 reviews2009
Dev: Arcen Games
Windows · Mac · Linux
Median: 2.7 hrsMean: 5.7 hrs≥1hr: 87%
"You are outgunned. You are massively outnumbered. You must win." These are your orders. Humanity has already fought its war against the machines -- and lost. AI death squads stand watch over every planet and every wormhole, the few remaining human settlements are held captive in orbiting bubbles, and the AIs have turned their...
Why similar: Strategy 41.6%, RTS 22.3%, Space 16.2%, Real-Time with Pause 6.7% ★, Sci-fi 4.4%
- #29 Starship Corporation
79% matchMixed42% of 555 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: Strategy 32.4%, Simulation 28.5%, Space 23.3%, Indie 10.8%, Sci-fi 5.1%
Why You'll Like It: A management-heavy simulation that tasks you with designing and testing ships for various space-faring roles.
- #30 Creeper World 2: Anniversary Edition
77% matchVery Positive90% of 497 reviews2016
Dev: Knuckle Cracker
Windows · Mac
Median: 12.3 hrsMean: 21.3 hrs≥1hr: 84%
Deceptively simple... amazingly deep. Creeper World 2 thrusts you into the 14th millennium fighting and enemy that flows and oozes through the terrain. Employ advanced weapons,gravity manipulating repulsors, wormhole like rifts, and your own wit against this never yielding enemy.
Why similar: Strategy 36.6%, Real-Time with Pause 25% ★, Simulation 21.4%, Indie 11.3%, Tower Defense 5.7%
- #31 Istrolid
76% matchVery Positive87% of 2,684 reviews2016
Dev: treeform
Windows · Mac · Linux
Median: 1.0 hrsMean: 10.8 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 30.3%, Strategy 28.3%, RTS 26%, Indie 6.3%, Sci-fi 6.2%
- #32 Creeper World IXE
73% matchMostly Positive70% of 851 reviews2024
Dev: Knuckle Cracker
Windows
Median: 13.3 hrsMean: 13.8 hrs≥1hr: 84%
The unstoppable alien force known as The Creeper has returned, devouring thousands of worlds in its path, and yours is next. Battle against the Creeper fluid in a groundbreaking pixel-level simulation to prove that humanity will rule the galaxy forever!
Why similar: RTS 32.6%, Space 22.5%, Strategy 15.2%, Tower Defense 11%, Simulation 9.7%
- #33 Dawn of Andromeda
78% matchMixed44% of 242 reviews2017
Dev: Grey Wolf EntertainmentPub: Iceberg Interactive
Windows
Median: 4.1 hrsMean: 11.8 hrs≥1hr: 86%
Dawn of Andromeda is a pausable, real-time 4X space strategy game providing an accessible, fun and immersive experience, introducing fresh ideas to the genre. Build your empire, colonize new planets, interact with other factions and characters, research technologies and build great fleets.
Why similar: Real-Time with Pause 32.9% ★, Strategy 31.3%, Space 21.9%, Indie 7.4%, Sci-fi 6.6%
Why You'll Like It: A 4X strategy game that simplifies complex mechanics to keep the focus on fleet management and tactical expansion.
- #34 Star Ruler
77% 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: Strategy 34%, Space 28.1%, RTS 23.5%, Indie 8.2%, Sci-fi 5.9%
- #35 8-Bit Armies
75% matchVery Positive82% of 2,459 reviews2016
Dev: Petroglyph
Windows
Median: 4.6 hrsMean: 7.8 hrs≥1hr: 84%
8-Bit Armies is a retro Real-Time Strategy game. With a colorful, blocky voxel art style, 8-Bit Armies is Petroglyph's most fast-paced, friendly, and accessible RTS game to date. Featuring a campaign of 25 single-player missions, 12 co-op missions, multiplayer and skirmish modes.
Why similar: Strategy 35.5%, RTS 35.4%, Simulation 17.8%, Indie 8%, Pixel Graphics 3.2%
- #36 Forged Battalion
76% matchMixed58% of 1,108 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 48.8%, Strategy 28.6%, Simulation 15.6%, Indie 6.6%, Singleplayer 0.5%
- #37 Homeworld: Deserts of Kharak
74% matchMostly Positive79% of 8,793 reviews2016
Dev: Blackbird InteractivePub: Gearbox Publishing
Windows · Mac
Median: 5.0 hrsMean: 9.6 hrs≥1hr: 87%
A ground-based RTS prequel to the classic Homeworld games. Assemble your fleet and lead them to victory on the shifting sands of Kharak in this compelling strategy game for PC from Blackbird Interactive.
Why similar: RTS 45.4%, Strategy 31%, Space 12.5%, Sci-fi 10.6%, Singleplayer 0.4%
- #38 The Last Federation
75% matchMostly Positive75% of 502 reviews2014
Dev: Arcen Games
Windows · Mac · Linux
Median: 3.5 hrsMean: 5.1 hrs≥1hr: 90%
From the creators of AI War: Fleet Command comes an all-new grand strategy title with turn-based tactical combat, set in a deep simulation of an entire solar system and its billions of inhabitants. You are the last of a murdered race, determined to unify or destroy the 8 others.
Why similar: Strategy 28.7%, Space 26.9%, Real-Time with Pause 18.2% ★, Simulation 14%, Sci-fi 5.7%
- #39 REDCON
74% matchVery Positive85% of 807 reviews2016
Dev: Hexage
Windows
Median: 4.0 hrsMean: 9.8 hrs≥1hr: 71%
Command your own fortress in FTL-like real-time battles! Crush the enemy fortress with unrelenting bombardment or seize it with carefully executed invasion.
Why similar: Strategy 49.3%, Simulation 20.4%, Tower Defense 13.8%, Indie 12.7%, 2D 2.7%
- #40 Crying Suns
72% matchVery Positive86% of 4,448 reviews2019
Dev: Alt Shift
Windows · Mac
Median: 4.3 hrsMean: 7.5 hrs≥1hr: 93%
Crying Suns is a tactical rogue-lite that puts you in the role of a space fleet commander as you explore a mysteriously fallen empire. In this story rich experience inspired by Dune and Foundation, each successful run will uncover the truth about the Empire... and yourself as well.
Why similar: Real-Time with Pause 31.4% ★, Space 18.9%, RTS 17.5%, Strategy 16.1%, Sci-fi 6.4%
- #41 Protolife
73% matchVery Positive86% of 465 reviews2018
Dev: Volcanic Giraffe
Windows · Mac
Median: 3.2 hrsMean: 7.7 hrs≥1hr: 74%
Protolife is an unique tower-based strategy game which gives you a direct control over the builder robot in a struggle against the hungry proto-life organism.
Why similar: RTS 40%, Strategy 22.9%, Tower Defense 14.5%, Sci-fi 9.9%, Indie 7%
- #42 Rise to Ruins
71% matchVery Positive88% of 7,737 reviews2019
Dev: Raymond DoerrPub: SixtyGig Games
Windows · Mac · Linux
Median: 4.7 hrsMean: 16.4 hrs≥1hr: 83%
A brutal godlike village sim that melds the god game, management, and tower defense genres! Fight off hoards of monsters at night, and expand your village in the day time. Inspired by games like Black and White, Rimworld, and Dwarf Fortress but not quite like any of them.
Why similar: Strategy 36.3%, Tower Defense 26.9%, Simulation 19.7%, Indie 8.1%, Pixel Graphics 6.2%
- #43 The Last Starship
68% matchMostly Positive75% of 1,419 reviews2026
Dev: Introversion Software
Windows · Mac
Median: 5.6 hrsMean: 10.4 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 32.3%, Strategy 25.5%, Simulation 18.5%, Sci-fi 12.1%, Indie 7%
- #44 From the Depths
70% matchVery Positive89% of 12,523 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 38.1%, Space 24.8%, Strategy 22.1%, Simulation 15%
- #45 Eufloria HD
72% matchVery Positive89% of 868 reviews2014
Dev: Rudolf Kremers & Alex MayPub: Omni Systems
Windows · Mac · Linux
Median: 1.2 hrsMean: 6.8 hrs≥1hr: 52%
Experience the celebrated strategy gameplay of Eufloria HD. Conquer asteroids in space and use their resources to grow floral creatures that do your bidding. Expand your empire and fight against several teams of AI opponents that all vie for the same resources and can offer fierce opposition.
Why similar: Strategy 60.2%, RTS 23.2%, Indie 15.7%, Singleplayer 0.8%
- #46 Space Reign
67% matchMostly Positive76% of 377 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 30.7%, Space 30.7%, Strategy 19.4%, Sci-fi 10.7%, Indie 7.7%
- #47 Distant Worlds: Universe
71% matchMostly Positive75% of 1,845 reviews2014
Dev: Code ForcePub: Slitherine Ltd.
Windows
Median: 2.9 hrsMean: 23.9 hrs≥1hr: 59%
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: Space 27.5%, Strategy 24.1%, Real-Time with Pause 16% ★, RTS 12.1%, Simulation 10.4%
- #48 Starport Delta
70% matchMostly Positive72% of 75 reviews2020
Dev: Cloudfire Studios
Windows
Build amongst the stars in Starport Delta, a light sci-fi strategy game that focuses on survival. Station Commanders across the universe will turn to you for guidance to expand, defend, and survive. Help them build a thriving station, but watch out, there are many dangers hiding in space...
Why similar: Strategy 30.2%, Simulation 22.2%, RTS 16.7%, Space 15%, Indie 10.5%
- #49 FTL: Faster Than Light
67% matchOverwhelmingly Positive95% of 77,568 reviews2012
Dev: Subset Games
Windows · Mac · Linux
Median: 7.1 hrsMean: 33.7 hrs≥1hr: 89%
This "spaceship simulation roguelike-like" allows you to take your ship and crew on an adventure through a randomly generated galaxy filled with glory and bitter defeat.
Why similar: Space 30.4%, Real-Time with Pause 26.1% ★, Strategy 19.4%, Sci-fi 9.1%, Simulation 6.7%
- #50 Harvest: Massive Encounter
71% matchMostly Positive79% of 159 reviews2009
Dev: Oxeye Game Studio
Windows · Mac · Linux
Median: 1.2 hrsMean: 3.9 hrs≥1hr: 54%
Harvest: Massive Encounter is an award-winning real-time strategy game with battles of epic proportions and a unique style of resource management and exploration. Build power plants, mineral harvesters and defense towers and make sure they have sufficient energy to fend off endless hordes of evil aliens.
Why similar: Strategy 49.4%, Tower Defense 25.3%, Indie 16%, Sci-fi 8.4%, Singleplayer 1%
- #51 Shallow Space
73% 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: Space 27.1%, Strategy 26.8%, RTS 25.4%, Simulation 15.9%, Sci-fi 4.9%
- #52 Nexus - The Jupiter Incident
69% matchVery Positive86% of 1,053 reviews2007
Dev: Mithis GamesPub: HandyGames
Windows
Median: 1.9 hrsMean: 12.1 hrs≥1hr: 64%
Ambitious megacorporations monopolize the conquest of space and the colonization of the solar system. At the very edge of the solar system, the companies make a discovery that will shift the technological advantage and upset the balance. And so a new conflict is born: "The Jupiter Incident."
Why similar: Space 27.8%, Strategy 23.1%, RTS 20.1%, Simulation 9%, Real-Time with Pause 8.8% ★
- #53 DG2: Defense Grid 2
68% matchVery Positive86% of 3,339 reviews2014
Dev: Hidden Path Entertainment
Windows
Median: 6.0 hrsMean: 11.4 hrs≥1hr: 89%
Great strategy is timeless. Build, adapt, and defend across dynamic maps, solo or online - every session brings new strategies, new solutions, and new surprises. Now is the perfect time to enter the grid.
Why similar: RTS 31.4%, Space 21.5%, Strategy 19.7%, Tower Defense 11.8%, Sci-fi 9.5%
- #54 Stellar Warfare
67% matchVery Positive84% of 406 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 29.9%, Space 23.3%, Strategy 17.4%, Simulation 13.5%, Sci-fi 8.6%
- #55 Void War
61% matchVery Positive94% of 3,537 reviews2025
Dev: Tundra
Windows
Median: 7.7 hrsMean: 14.5 hrs≥1hr: 83%
Command an ancient starship and fight your way to the heart of a dying Empire. Fend off attacks from demented cultists, craven space pirates, and xenophobic Imperial soldiers. Discover powerful artifacts and use them to build your ship into a fearsome war engine.
Why similar: Real-Time with Pause 38.2% ★, Space 25.8%, Strategy 17%, Simulation 7.9%, Sci-fi 7.1%
- #56 Infested Planet
67% matchVery Positive94% of 3,014 reviews2014
Dev: Rocket Bear Games
Windows
Median: 3.1 hrsMean: 5.9 hrs≥1hr: 88%
Command a team of 5 elite soldiers against an alien horde of 100,000. Surrounded on all sides, you must outmaneuver and outsmart the enemy.
Why similar: RTS 32.3%, Strategy 32.3%, Tower Defense 12.6%, Real-Time with Pause 7.6% ★, Sci-fi 6.6%
- #57 Space Run Galaxy
69% matchMixed64% of 1,027 reviews2016
Dev: Passtech GamesPub: Focus Entertainment
Windows
Median: 3.3 hrsMean: 5.3 hrs≥1hr: 92%
Space Run Galaxy is the sequel to Space Run, the game from one-man studio Passtech, which seduced hundreds of thousands of players with its dynamic and original gameplay. By twisting the tower-defense game style, Space Run offered an addictive real-time spaceship construction strategy experience.
Why similar: Strategy 43.2%, Space 26.8%, Tower Defense 18.8%, Indie 11.2%
- #58 Creeper World: Anniversary Edition
66% matchOverwhelmingly Positive97% of 954 reviews2016
Dev: Knuckle Cracker
Windows · Mac
Median: 8.0 hrsMean: 16.4 hrs≥1hr: 80%
Imagine an enemy that is everywhere and moves like a giant, organic mass across the map. Imagine your base and your people surrounded by a blanket of crushing destruction from all directions. Your only hope, well what hope? Then you take the high ground and pound this enemy into oblivion.
Why similar: Strategy 47.4%, Simulation 24.9%, Indie 15%, Tower Defense 12.6%
- #59 Colony Siege
66% matchVery Positive93% of 257 reviews2020
Dev: Finifugal Games
Windows
Colony Siege combines the best of RTS and tower defense, including base building, mazing, and unit physics. Defend Earth's remaining colonies using an arsenal of deadly weapons to torch, slice, throw, and impale swarms of alien invaders.
Why similar: Strategy 41.9%, Simulation 21.5%, RTS 19.4%, Tower Defense 9.5%, Sci-fi 5.9%
- #60 StarDrive
70% matchMixed45% of 1,482 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: Strategy 31.3%, Space 28.7%, RTS 24.6%, Sci-fi 7.6%, Indie 7.4%