- #1 Cosmoteer: Starship Architect & Commander
97% matchVery Positive94% of 12,916 reviews2022
Dev: Walternate Realities
Windows
Median: 19.3 hrsMean: 41.3 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 28.4%, Sci-fi 20.2%, Online Co-Op 17.1%, Exploration 10.6%, Multiplayer 10.2%
Why You'll Like It: Like Era One, it features deep custom starship design and construction coupled with tactical real-time combat.
- #2 Executive Assault 2
96% matchVery Positive83% of 1,767 reviews2023
Dev: Hesketh Studios Ltd
Windows · Mac
Median: 3.7 hrsMean: 8.1 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 25%, Action RTS 19.2% ★, Base Building 15.4%, Space 12.7%, Real Time Tactics 10.9%
Why You'll Like It: Offers a similar blend of 4X strategy, base building, and direct real-time tactical command from a sci-fi perspective.
- #3 Sins of a Solar Empire II
96% matchVery Positive84% of 8,792 reviews2024
Dev: Ironclad Games CorporationPub: Stardock Entertainment
Windows
Median: 9.5 hrsMean: 32.8 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 25.8%, Space 24.2%, Base Building 10.2%, Strategy 8.4%, PvP 8.4%
Why You'll Like It: Provides grand-scale real-time strategy and fleet management across planetary systems reminiscent of Era One's scope.
- #4 Avorion
95% matchVery Positive90% of 14,588 reviews2020
Dev: Boxelware
Windows · Mac · Linux
Median: 18.9 hrsMean: 99.6 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 32.5%, Sandbox 29.2%, Sci-fi 15.2%, Exploration 14.6%, 3D 8.4%
Why You'll Like It: Shares the core sandbox philosophy of building custom modular ships and exploring a procedurally generated galaxy.
- #5 Planetary Annihilation: TITANS
94% matchVery Positive84% of 14,720 reviews2015
Dev: Planetary Annihilation Inc
Windows · Mac · Linux
Median: 4.0 hrsMean: 17.8 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 24.7%, Real Time Tactics 17.9%, Base Building 13.1%, Space 10.2%, PvP 8.1%
Why You'll Like It: Features massive scale real-time strategy warfare with interplanetary tactical movement similar to Era One.
- #6 NEBULOUS: Fleet Command
94% matchVery Positive81% of 4,440 reviews2022
Dev: Eridanus IndustriesPub: Hooded Horse
Windows
Median: 4.9 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 45.1%, Sandbox 25.9%, Multiplayer 13.6%, Strategy 12.4%, Singleplayer 3%
Why You'll Like It: Focuses heavily on tactical fleet combat and realistic missile warfare in space, appealing to Era One's tactical commanders.
- #7 Starminer
93% matchMostly Positive73% of 1,894 reviews2026
Dev: CoolAndGoodGames
Windows
Median: 7.0 hrsMean: 26.4 hrs≥1hr: 82%
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 23.9%, Space 20.6%, Sandbox 18.9%, Base Building 17.6%, Sci-fi 10.8%
Why You'll Like It: Combines space-based resource extraction, sandbox elements, and strategic defense mechanics.
- #8 Ashes of the Singularity: Escalation
92% matchMostly Positive74% of 5,000 reviews2016
Dev: Stardock Entertainment
Windows
Median: 3.2 hrsMean: 7.3 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 23.5%, Real Time Tactics 22%, Base Building 17.1%, PvP 11.4%, Online Co-Op 9.3%
Why You'll Like It: Delivers massive real-time strategy battles with base building and enormous armies on vast maps.
- #9 Space Reign
91% matchMostly Positive74% of 462 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: Action RTS 25.1% ★, Real Time Tactics 20.9%, RTS 16%, Space 14.7%, Stealth 8.1%
Why You'll Like It: Focuses on tactical real-time space warfare and capital ship management.
- #10 Stellar Warfare
91% matchVery Positive82% of 434 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 24.4%, Real Time Tactics 22%, Space 16.7%, Base Building 15.8%, Sci-fi 8.2%
Why You'll Like It: An indie RTS that focuses on building up a fleet of custom warships to engage in sci-fi skirmishes.
- #11 The Last Starship
90% matchMostly Positive75% of 1,705 reviews2026
Dev: Introversion Software
Windows · Mac
Median: 6.1 hrsMean: 12.3 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 25.5%, Space 23.5%, Sandbox 20.4%, Sci-fi 12.1%, Strategy 9.1%
Why You'll Like It: Allows you to design custom ships room-by-room and manage crew operations in deep space.
- #12 From the Depths
89% matchVery Positive89% of 12,853 reviews2020
Dev: Brilliant Skies Ltd.
Windows · Mac · Linux
Median: 4.2 hrsMean: 40.8 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: Gun Customization 24.2% ★, Co-op Campaign 20.1% ★, RTS 19.8%, Sandbox 13.2%, Space 11.8%
Why You'll Like It: Shares the extreme vehicular design depth where players construct custom flagships block-by-block for strategic warfare.
- #13 Istrolid
89% matchVery Positive87% of 2,696 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 28.1%, RTS 26.4%, Sandbox 13.3%, Strategy 12.8%, Multiplayer 10.3%
Why You'll Like It: Features modular ship design where you build your own fleet to fight real-time tactical battles.
- #14 Desynced
87% matchMostly Positive80% of 2,067 reviews2026
Dev: Stage Games Inc.Pub: Forklift Interactive
Windows
Median: 4.4 hrsMean: 18.9 hrs≥1hr: 77%
Desynced is a sci-fi strategy game with fully customizable units and behaviors. Gather, build, research, and explore the unknown. Alone or with friends, unveil the mystery of an AI on the edge of self-awareness and uncover the hidden truth in this blend of strategy, automation, and exploration.
Why similar: RTS 24.8%, Base Building 20.4%, Sandbox 15.4%, Sci-fi 9.1%, Online Co-Op 7.8%
Why You'll Like It: Offers complex base building and automation mechanics for players who enjoy engineering logistical networks.
- #15 Carrier Command 2
88% matchVery Positive82% of 3,781 reviews2021
Dev: GeometaPub: MicroProse Software
Windows · Mac
Median: 9.3 hrsMean: 15.7 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 32%, Real Time Tactics 29.4%, PvP 14.7%, Strategy 9.5%, Exploration 9%
Why You'll Like It: Blends strategy, vehicle micromanagement, and tactical deployment from a mobile command center.
- #16 ZeroSpace
86% matchVery Positive80% of 1,442 reviews2026
Dev: Starlance Studios
Windows
Median: 2.7 hrsMean: 9.9 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: Action RTS 29.5% ★, RTS 18.7%, Real Time Tactics 18.6%, Base Building 13.9%, PvP 9.6%
Why You'll Like It: An action-focused RTS that centers on tactical unit control and military campaigns.
- #17 BattleGroupVR
86% matchVery Positive92% of 950 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 24%, Real Time Tactics 21.9%, Space 18.7%, PvP 11.3%, Sci-fi 8.9%
Why You'll Like It: Puts you in command of a fleet of custom capital ships during intense tactical space engagements.
- #18 Rogue Command
84% matchVery Positive90% of 1,064 reviews2026
Dev: feneq
Windows
Median: 4.2 hrsMean: 16.2 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: Action RTS 33.7% ★, RTS 21.9%, Base Building 15.6%, Space 13.8%, Sci-fi 7.8%
Why You'll Like It: Blends fast-paced RTS mechanics with deckbuilding and strategic base operations.
- #19 Starship EVO
85% matchVery Positive83% of 1,546 reviews2020
Dev: Moonfire Entertainment
Windows
Median: 1.6 hrsMean: 6.4 hrs≥1hr: 59%
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 45.9%, Sandbox 32.3%, Sci-fi 13.4%, Multiplayer 8.3%
Why You'll Like It: Focuses on sandbox creativity, allowing you to build intricate starships and explore open space.
- #20 Terra Invicta
82% matchVery Positive80% of 9,948 reviews2026
Dev: Pavonis InteractivePub: Hooded Horse
Windows
Median: 9.2 hrsMean: 53.5 hrs≥1hr: 79%
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: Space 40.2%, Sandbox 37.1%, Strategy 18.5%, Singleplayer 4.2%
Why You'll Like It: A grand strategy game focusing on geopolitical maneuvering, space exploration, and fleet design throughout the Solar System.
- #21 Starbase
84% matchMixed55% of 6,768 reviews2021
Dev: Frozenbyte
Windows
Median: 14.2 hrsMean: 91.5 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 34.9%, Sandbox 30.2%, Sci-fi 16.7%, Multiplayer 9.1%, Exploration 9.1%
Why You'll Like It: A massively multiplayer space sandbox featuring hyper-detailed structural building and automation.
- #22 Homeworld Remastered Collection
83% matchVery Positive88% of 14,195 reviews2015
Dev: Gearbox SoftwarePub: Gearbox Publishing
Windows · Mac
Median: 4.7 hrsMean: 34.8 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 36%, Space 32.6%, Sci-fi 11%, Strategy 10.1%, Story Rich 5%
Why You'll Like It: The quintessential 3D real-time tactical space strategy experience featuring persistent fleets and capital ships.
- #23 Tempest Rising
81% matchVery Positive87% of 12,034 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 54.6%, Base Building 13.9%, Strategy 13.5%, Action RTS 8.5% ★, Multiplayer 3.9%
Why You'll Like It: A classic base-building RTS that satisfies the craving for structured tactical warfare.
- #24 HighFleet
81% matchVery Positive88% of 7,447 reviews2021
Dev: Konstantin KoshutinPub: MicroProse Software
Windows
Median: 4.9 hrsMean: 16.7 hrs≥1hr: 77%
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: Sci-fi 32.1%, Strategy 29.7%, Exploration 29.1%, Singleplayer 9.1%
Why You'll Like It: Combines custom capital ship design, tactical fleet combat, and strategic map movement.
- #25 Void Destroyer 2
80% matchVery Positive80% of 675 reviews2020
Dev: Iteration 11
Windows
Median: 2.8 hrsMean: 15.3 hrs≥1hr: 74%
Start with nothing... End with everything! All you have is a basic ship, barely fit for combat, with it you'll start your journey and empire. A open world space sandbox, inspired by and expanding the classics.
Why similar: RTS 28.3%, Space 22.6%, Sandbox 21.4%, Sci-fi 11.4%, Strategy 9%
Why You'll Like It: Combines space simulation, 4X strategy, and real-time tactical fleet command into a single package.
- #26 Slipways
78% matchVery Positive93% of 2,312 reviews2021
Dev: Beetlewing
Windows · Mac
Median: 5.0 hrsMean: 13.6 hrs≥1hr: 81%
Weave isolated planets into a vast trade empire. Hatch plans. Research game-breaking technologies. Still be done in time for lunch. Enjoy the endless possibilities of a space grand strategy game in 60 minutes flat.
Why similar: Sandbox 33.7%, Space 26.6%, Sci-fi 20.1%, Strategy 17.5%, Singleplayer 2.1%
Why You'll Like It: A streamlined space empire builder focused on logistics and efficient expansion.
- #27 AI War 2
79% matchVery Positive87% of 1,563 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 22.9%, Real Time Tactics 21.9%, Space 14.4%, Sandbox 11.4%, Online Co-Op 9.3%
Why You'll Like It: A complex asymmetric strategy game focusing on guerrilla warfare against a superior machine intelligence.
- #28 Sphere - Flying Cities
79% matchMixed50% of 243 reviews2022
Dev: mañana studiosPub: Assemble Entertainment
Windows
Sphere – Flying Cities is a sci-fi citybuilder which combines strategy, simulation, and survival elements in an extraordinary and immersive scenario. Rebuild and protect a society in a unique and hostile environment. Pay the price for your decisions and be prepared to lose everything.
Why similar: Space 36.3%, Sci-fi 19%, Strategy 16.3%, Exploration 14.2%, 3D 10.5%
Why You'll Like It: Involves expanding and managing a unique modular flying base in a hostile environment.
- #29 Outworld Station
75% matchVery Positive85% of 859 reviews2026
Dev: Trickjump Games Ltd
Windows
Median: 3.5 hrsMean: 10.5 hrs≥1hr: 69%
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 20.6%, RTS 19.8%, Space 19%, Sandbox 13.3%, Online Co-Op 7%
- #30 Space Engineers 2
76% matchMostly Positive75% of 5,654 reviews2025
Dev: Keen Software House
Windows
Median: 2.0 hrsMean: 11.6 hrs≥1hr: 64%
Space Engineers 2 is a playable Early Access Alpha sandbox focused on engineering, exploration, and colonization in a fully destructible universe. Design and build ships, stations, and planetary bases while uncovering the story of Miro and Ivan Sokol. Help shape the future of the Almagest system.
Why similar: Space 31.7%, Sandbox 28.4%, Sci-fi 15.9%, Exploration 11.7%, Strategy 9.5%
- #31 Stellarcraft
75% matchVery Positive91% of 101 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: Action RTS 20.3% ★, Co-op Campaign 16.3% ★, Real Time Tactics 13.1%, Base Building 10.3%, RTS 10.1%
- #32 Sins of a Solar Empire®: Rebellion
76% matchVery Positive93% of 16,354 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%, Base Building 14.8%, Space 13.8%, Sandbox 11.7%, Online Co-Op 10.4%
- #33 Rise of Piracy
74% matchMostly Positive79% of 547 reviews2026
Dev: IrishJohnGamesPub: MicroProse Software
Windows
The perfect blend of Action, Adventure and RTS. Begin your journey as the lowly captain of a small vessel. End as the commander of a threatening fleet. Rise to glory how you see fit. Trade, fight, recruit, grow, pillage, ally, destroy & conquer.
Why similar: Action RTS 36.1% ★, RTS 22.3%, Sandbox 14.3%, PvP 10.8%, Exploration 7.3%
- #34 StarMade
77% matchMixed68% of 2,992 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 38.8%, Sandbox 29%, Sci-fi 10.7%, Multiplayer 10.1%, Exploration 5.8%
- #35 Celestial Command
77% matchMixed62% of 705 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 48.8%, Sandbox 26.6%, Sci-fi 12.4%, Strategy 12.2%
- #36 SpaceCraft
73% matchMixed64% of 2,773 reviews2026
Dev: Shiro Games
Windows
Median: 14.0 hrsMean: 54.1 hrs≥1hr: 91%
The Universe is yours. SpaceCraft is an online space exploration and building game. Explore a vast galaxy of solar systems and planets, mine and craft resources, design and build ships, automate planetary bases and interplanetary logistics, trade and cooperate.
Why similar: Space 21.7%, Base Building 20.2%, Sandbox 17.3%, PvP 12.3%, Sci-fi 11.2%
- #37 Empyrion - Galactic Survival
73% matchMostly Positive78% of 34,438 reviews2020
Dev: Eleon Game Studios
Windows
Median: 6.2 hrsMean: 77.1 hrs≥1hr: 77%
Build and explore in a true space sandbox survival adventure. Construct mighty capital vessels, sprawling planetary settlements, and vast space stations in your galactic journey to discover the mysteries of Empyrion!
Why similar: Space 25.7%, Sandbox 18.8%, PvP 15.4%, Sci-fi 11%, Exploration 10.4%
- #38 Executive Assault
74% matchVery Positive85% of 1,460 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 46.7%, Base Building 19.9%, Strategy 14%, Sci-fi 8.9%, Multiplayer 6.2%
- #39 X4: Foundations
72% matchMostly Positive80% of 30,300 reviews2018
Dev: Egosoft
Windows · Linux
Median: 4.9 hrsMean: 95.4 hrs≥1hr: 80%
Your journey to building a vast space empire begins behind the controls of a single ship. Explore, trade, fight, and build as you rise to command fleets, stations, and entire economies in a living, fully simulated universe that reacts to every decision.
Why similar: Space 31%, Sandbox 23.3%, Sci-fi 14.2%, Exploration 11.9%, Strategy 10%
- #40 Zero-K
71% matchVery Positive94% of 4,393 reviews2018
Dev: Zero-K Team
Windows · Linux
Median: 2.3 hrsMean: 33.9 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 53%, Strategy 15.7%, Multiplayer 10.6%, Online Co-Op 9.2%, Base Building 5.2%
- #41 Interstellar Rift
72% matchMixed68% of 1,667 reviews2020
Dev: Split PolygonPub: Iceberg Interactive
Windows
Median: 4.3 hrsMean: 35.6 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 24.8%, Sandbox 23.9%, PvP 19.8%, Exploration 12.5%, Sci-fi 12.1%
- #42 Airship: Kingdoms Adrift
70% matchMostly Positive75% of 1,068 reviews2023
Dev: Revolution IndustryPub: indie.io
Windows
Median: 6.0 hrsMean: 21.2 hrs≥1hr: 77%
Welcome to Suthseg! As the newly commissioned airship captain, forge a mercantile empire across the archipelago, until the great powers of Europa turn their attention toward it. Build up a fleet, chart trade routes, establish industries, and explore the frontier at your airship's helm!
Why similar: Real Time Tactics 38.5%, Sandbox 22.9%, PvP 19.9%, Strategy 6.8%, Story Rich 6.7%
- #43 Eternal Starlight VR
71% 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: Action RTS 28.5% ★, RTS 25.1%, Real Time Tactics 17.6%, Space 16%, Strategy 6.2%
- #44 Per Aspera
69% matchMostly Positive76% of 5,783 reviews2020
Dev: Tlön IndustriesPub: Raw Fury
Windows
Median: 5.0 hrsMean: 12.0 hrs≥1hr: 93%
Make Mars your own! Take control of the world’s most sophisticated AI (AMI) and terraform the surface of the Red Planet for a city-building experience on a planetary scale. Transform this barren world into a lush paradise and explore the surface for any ancient secrets that may be waiting.
Why similar: Online Co-Op 22.7%, Base Building 21.5%, Space 17%, Sandbox 14.9%, Sci-fi 8.8%
- #45 Distant Worlds 2
69% matchMostly Positive71% of 3,566 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 41.4%, Strategy 26%, Sci-fi 22.1%, 3D 7.8%, Singleplayer 2.7%
- #46 Solar Expanse - Space Exploration Manager
66% matchVery Positive87% of 1,372 reviews2026
Dev: SpaceOpsPub: Games Operators
Windows
Median: 4.6 hrsMean: 16.0 hrs≥1hr: 75%
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 33.7%, Sandbox 26.2%, Sci-fi 13.5%, Strategy 8.4%, 3D 7.8%
- #47 Stationeers
68% matchVery Positive88% of 9,306 reviews2017
Dev: RocketWerkz
Windows
Median: 9.8 hrsMean: 85.8 hrs≥1hr: 85%
Stationeers puts you in control of the construction and management of a space station to run by yourself or online with your friends. Complex atmospheric, electrical, manufacturing, agriculture, and gravitational systems require your thought and management at all times!
Why similar: Base Building 29.6%, Space 25.1%, Sandbox 22%, Sci-fi 13%, Multiplayer 10.2%
- #48 Base One
71% matchMostly Negative37% of 479 reviews2021
Dev: PixFrozePub: Blowfish Studios
Windows · Mac
Base One is a space base builder game where you take control of a network of space stations and its crew's tasks and wellbeing. Maintain your resources and defenses as you navigate the wide array of dangers ahead of you!
Why similar: Space 31%, Exploration 20.3%, Strategy 18.3%, Sci-fi 17.4%, 3D 13%
- #49 Final Factory
67% matchMostly Positive79% of 306 reviews2024
Dev: Never Games Limited
Windows · Mac
Median: 2.4 hrsMean: 7.9 hrs≥1hr: 64%
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 23.9%, Space 17.2%, Sandbox 16.3%, RTS 15.4%, Sci-fi 9.6%
- #50 Forged Battalion
70% matchMixed58% of 1,114 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 71.7%, Strategy 18.7%, Multiplayer 8.3%, Singleplayer 1.3%
- #51 WARSHIFT
70% matchMostly Positive71% of 699 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 61.2%, Strategy 19.2%, Sci-fi 14.2%, Multiplayer 5.3%
- #52 BattleGroupVR2
66% matchVery Positive85% of 220 reviews2025
Dev: SpaceOwl Games
Windows
BattleGroupVR2 is a virtual reality real-time space strategy where you explore the galaxy and lead a fleet of powerful warships from the bridge of your flagship. Explore, mine, trade, hunt. Grow your fleet, upgrade your ships, train your captains, and battle the enemy from the captain's chair.
Why similar: Action RTS 48% ★, RTS 29.4%, Sci-fi 11.4%, Strategy 6.7%, 3D 4.4%
- #53 TerraTech Worlds
67% matchMixed63% of 2,297 reviews2024
Dev: Payload StudiosPub: Mythwright
Windows
Median: 7.6 hrsMean: 21.8 hrs≥1hr: 85%
TerraTech Worlds is an open world, build-craft adventure game, set on an uncharted alien world. Play solo or with friends, explore your surroundings, craft unique vehicles, construct automated bases, and battle your way through hazards and enemies to harness the power of your environment
Why similar: Base Building 31.5%, Sandbox 22.7%, Space 13.4%, Exploration 10.6%, Multiplayer 10.5%
- #54 Annihilate The Spance
65% matchVery Positive90% of 366 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 31.6%, Base Building 26.1%, Space 22.8%, Sci-fi 8.4%, Strategy 6.8%
- #55 Starship Theory
66% matchMixed50% of 1,143 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 42.5%, Space 32.7%, Strategy 12.8%, Sci-fi 12%
- #56 Deep Space Battle Simulator
67% matchMostly Positive78% of 413 reviews2021
Dev: yeswecamp
Windows · Linux
Median: 42 minMean: 3.7 hrs≥1hr: 36%
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 35.2%, Space 25.8%, Sci-fi 14.1%, Multiplayer 12.1%, Strategy 10.4%