- #1 Avorion
97% matchVery Positive90% of 14,288 reviews2020
Dev: Boxelware
Windows · Mac · Linux
Median: 18.6 hrsMean: 98.8 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: Spaceships 29% ★, Space Sim 23.9% ★, Space 13.5%, Building 13.5%, Sci-fi 10.9%
Why You'll Like It: Offers an expansive sandbox experience with a robust block-based ship building system that allows for immense creative freedom.
- #2 Reassembly
96% 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: Building 33.2%, Space 31.7%, Sci-fi 9.5%, Strategy 8.8%, 2D 5.9%
Why You'll Like It: Features modular, physics-based ship building and tactical combat that closely mirrors the 2D design philosophy of Cosmoteer.
- #3 Space Haven
96% matchVery Positive86% of 9,719 reviews2020
Dev: Bugbyte Ltd.
Windows · Mac · Linux
Median: 4.3 hrsMean: 20.2 hrs≥1hr: 72%
Embark on a space voyage with your ragtag crew of civilians in search of a new home. Build spaceships tile by tile, create optimal gas conditions, manage the needs and moods of their crew, encounter other space-faring groups, and explore the universe in this spaceship colony simulation.
Why similar: Space Sim 22.8% ★, Space 14.6%, Building 14.6%, Sci-fi 12.7%, Survival 10.7%
Why You'll Like It: Combines modular ship construction with intricate crew management and survival mechanics in a dangerous space environment.
- #4 From the Depths
95% 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: Building 30.3%, Space 22.5%, Survival 16.6%, Multiplayer 13.2%, Strategy 9.9%
Why You'll Like It: Provides an incredibly deep physics-based building system where you design vehicles component-by-component for complex combat scenarios.
- #5 HighFleet
94% matchVery Positive88% of 7,155 reviews2021
Dev: Konstantin KoshutinPub: MicroProse Software
Windows
Median: 5.1 hrsMean: 16.8 hrs≥1hr: 78%
Battle for survival in the skies of a mysterious future Earth in this unique action-strategy game mixing arcade combat, exploration, management and diplomacy. As giant flying ships wage spectacular aerial warfare, a prophecy tells of one who will save the world – could it be you?
Why similar: Building 27.3%, Sci-fi 23.2%, Strategy 12.9%, Exploration 10.8%, Simulation 9%
Why You'll Like It: Focuses on physics-based ship design and tactical combat where the physical layout of your vessel determines its survival in high-stakes encounters.
- #6 Celestial Command
94% 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 30.5%, Space Sim 20% ★, Sci-fi 13.5%, Building 12%, Simulation 9.3%
Why You'll Like It: Features a realistic physics engine where ship construction requires careful consideration of structural integrity and thruster placement.
- #7 Nimbatus - The Space Drone Constructor
92% matchMostly Positive79% of 2,144 reviews2020
Dev: Stray Fawn StudioPub: Stray Fawn Publishing
Windows · Mac · Linux
Median: 3.0 hrsMean: 5.1 hrs≥1hr: 84%
Command the Nimbatus and craft drones out of hundreds of different parts. Survive unknown threats in a fully destructible, procedural universe, compete against other players in different arenas or enjoy complete creative freedom in the sandbox.
Why similar: Space Sim 27.8% ★, Space 15.3%, Sci-fi 14.8%, Building 12%, Strategy 8.6%
Why You'll Like It: Allows for the creation of complex, modular drones using a variety of parts to solve physics-based challenges.
- #8 Starship Theory
93% 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: Real-Time with Pause 21.5% ★, Space 20.7%, Sci-fi 13.1%, Survival 11.8%, Strategy 8.3%
Why You'll Like It: Focuses on the management of a ship's systems and crew while navigating through hostile space.
- #9 Istrolid
91% 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: Building 30%, Space 25.2%, Sci-fi 12%, Strategy 11.7%, Multiplayer 11%
Why You'll Like It: A tactical strategy game that lets you design your own ships from scratch using modular parts for online fleet battles.
- #10 Stardeus
91% matchVery Positive87% of 1,529 reviews2022
Dev: Kodo LinijaPub: Paradox Arc
Windows · Mac · Linux
Median: 8.7 hrsMean: 22.6 hrs≥1hr: 77%
Stardeus is a deep colony sim set on a broken starship manned by drones and hibernating human survivors. As the AI, have your drones repair your ship, save your crew and travel the stars in this beautiful simulation.
Why similar: Space Sim 26.2% ★, Space 18.5%, Sci-fi 16.1%, Survival 12.5%, Exploration 8.1%
Why You'll Like It: A colony-sim that takes place on a massive, customizable spaceship where you must manage resources and crew needs.
- #11 Particle Fleet: Emergence
90% matchVery Positive92% of 1,261 reviews2016
Dev: Knuckle Cracker
Windows · Mac · Linux
Median: 6.7 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: Real-Time with Pause 31.6% ★, Space 21.1%, Strategy 15.1%, Sci-fi 11%, Simulation 9.6%
Why You'll Like It: Offers a unique tactical space combat experience that emphasizes fleet positioning and strategic resource management.
- #12 Empyrion - Galactic Survival
89% matchMostly Positive79% of 34,087 reviews2020
Dev: Eleon Game Studios
Windows
Median: 6.3 hrsMean: 76.7 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 Sim 23.2% ★, Space 15.6%, Building 14.9%, Sci-fi 11.5%, Survival 10.3%
Why You'll Like It: Features modular building mechanics that allow you to construct everything from small vessels to massive capital ships.
- #13 Captain Forever Remix
89% matchVery Positive81% of 377 reviews2016
Dev: Pixelsaurus Games
Windows · Mac · Linux
Median: 54 minMean: 3.9 hrs≥1hr: 47%
Can you create the raddest spaceship? Captain Forever Remix is the spaceship builder roguelike. Voyage across the Solar System and blast apart randomly-generated enemies for spare parts. This is an officially-licensed re-imagining of the indie classic Captain Forever.
Why similar: Space 53.6%, Building 21.9%, Sci-fi 12.6%, Indie 5.4%, 2D 3.7%
Why You'll Like It: Centers on modular ship construction where you scavenge parts from defeated enemies to grow and improve your own vessel.
- #14 The Last Starship
87% 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 Sim 27.6% ★, Space 16.6%, Building 15.6%, Sci-fi 14.7%, Strategy 6.5%
Why You'll Like It: Allows you to design and manage your own starship, focusing on the technical aspects of ship operation and crew tasks.
- #15 StarMade
88% matchMixed68% of 2,981 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 29.4%, Building 17.7%, Sci-fi 14%, Space Sim 13.4% ★, Multiplayer 9.2%
Why You'll Like It: A voxel-based space sandbox that allows for the creation of massive, functional starships with complex internal systems.
- #16 FTL: Faster Than Light
86% 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 20.4%, Real-Time with Pause 20.3% ★, Sci-fi 14.4%, Space Sim 13.7% ★, Difficult 8.7%
Why You'll Like It: The quintessential ship management game that forces players to make difficult tactical decisions during intense space combat.
- #17 Interstellar Rift
86% matchMixed68% of 1,655 reviews2020
Dev: Split PolygonPub: Iceberg Interactive
Windows
Median: 4.2 hrsMean: 33.2 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 Sim 30.3% ★, Building 16.8%, Space 14.3%, Sci-fi 12%, Survival 9.9%
Why You'll Like It: Focuses on ship design and multi-crew management, requiring players to build functional interiors for their vessels.
- #18 Starship EVO
85% matchVery Positive84% of 1,210 reviews2020
Dev: Moonfire Entertainment
Windows
Median: 1.3 hrsMean: 5.8 hrs≥1hr: 55%
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 20.5%, Building 19.8%, Space Sim 17.8% ★, Sci-fi 11.1%, Spaceships 10.8% ★
Why You'll Like It: Provides a highly detailed physics-based construction system that allows for complex mechanical designs in space.
- #19 Space Engineers
84% matchVery Positive89% of 133,238 reviews2019
Dev: Keen Software House
Windows
Median: 9.0 hrsMean: 95.7 hrs≥1hr: 87%
Space Engineers is a sandbox engineering game where you design and build ships, stations, and planetary bases in a fully destructible environment. Explore planets and space, mine resources, survive hazards, and engage in combat alone or with friends in Creative or Survival modes.
Why similar: Space Sim 27.6% ★, Space 16.5%, Building 16.2%, Survival 11%, Multiplayer 8.3%
Why You'll Like It: A classic in the genre, offering deep physics-based construction and engineering for ships and stations.
- #20 Shortest Trip to Earth
84% matchMostly Positive77% of 1,426 reviews2019
Dev: Interactive Fate
Windows · Linux
Median: 3.2 hrsMean: 6.6 hrs≥1hr: 88%
Shortest Trip to Earth is a roguelike spaceship simulator focused on exploration, ship management and tactical battles. Embark on a perilous journey across the universe with nuclear missiles, armed crew and a cat.
Why similar: Spaceships 27.5% ★, Space Sim 13.9% ★, Space 12.8%, Sci-fi 10.8%, Difficult 9.2%
Why You'll Like It: A survival-focused ship management game where maintaining your vessel's systems is critical to surviving a long journey.
- #21 Dimensions: Dreadnought Architect
83% matchMixed55% of 199 reviews2023
Dev: Craft Theory
Windows
Unleash your creativity, design your dreadnought with a variety of modules, and have complete control over the function and style of each module. Command your battleship with wisdom and decisiveness. Gallop in the vast galaxy and destroy all enemies.
Why similar: Spaceships 43.3% ★, Building 16.6%, Space Sim 15.6% ★, Space 11.3%, Multiplayer 4.3%
Why You'll Like It: A roguelite that emphasizes modular spaceship design and tactical combat in a procedurally generated galaxy.
- #22 Pixel Starships
82% matchMostly Positive73% of 2,914 reviews2023
Dev: SavySoda
Windows · Mac · Linux
Median: 2.3 hrsMean: 24.8 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 Sim 29.5% ★, Space 17.1%, Sci-fi 15.7%, Building 14.6%, Strategy 6.4%
Why You'll Like It: A management-heavy strategy game where ship layout and crew placement are vital for winning battles.
- #23 Void Destroyer 2
82% matchVery Positive80% of 664 reviews2020
Dev: Iteration 11
Windows
Median: 2.4 hrsMean: 14.5 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: Space Sim 34.5% ★, Space 17.5%, Sci-fi 15.1%, Building 14.7%, Strategy 7.1%
Why You'll Like It: Blends ship building, fleet command, and action-oriented space combat into a cohesive strategy experience.
- #24 Sins of a Solar Empire II
80% matchVery Positive84% of 8,167 reviews2024
Dev: Ironclad Games CorporationPub: Stardock Entertainment
Windows
Median: 9.5 hrsMean: 28.7 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: Space 42%, Sci-fi 24.9%, Strategy 14.8%, Multiplayer 13.1%, Singleplayer 5.1%
Why You'll Like It: A grand-scale space strategy game that focuses on fleet composition and large-scale tactical warfare.
- #25 X4: Foundations
81% matchMostly Positive80% of 27,985 reviews2018
Dev: Egosoft
Windows · Linux
Median: 5.1 hrsMean: 94.2 hrs≥1hr: 80%
Your journey to building a vast space empire begins behind the controls of a single ship. Explore the stars, trade goods, fight battles, build stations, buy and equip ships, and command fleets in a living, fully simulated universe that reacts to your decisions.
Why similar: Space Sim 33.9% ★, Space 18.5%, Building 11.7%, Sci-fi 11.6%, Exploration 7.2%
Why You'll Like It: Offers a deep simulation of space life, including ship customization and complex economic management.
- #26 Space Pirates And Zombies 2
81% matchMostly Positive79% of 2,826 reviews2017
Dev: MinMax Games Ltd.
Windows · Mac · Linux
Median: 4.6 hrsMean: 13.5 hrs≥1hr: 81%
Design and then improve the ultimate mothership. Explore a persistent living galaxy populated by 200 unique captains that can do everything you can do. Survive the zombie infection and then fight them back. Make allies and start your own faction. Build your empire. Also includes Sandbox Mode.
Why similar: Space 35.9%, Sci-fi 12.4%, Strategy 11.3%, Building 9.8%, Survival 7.8%
Why You'll Like It: Features a modular ship building system where you can customize your vessel to suit different combat styles.
- #27 Dyson Sphere Program
78% matchOverwhelmingly Positive98% of 90,027 reviews2021
Dev: Youthcat StudioPub: Gamirror Games
Windows
Median: 13.2 hrsMean: 75.2 hrs≥1hr: 84%
Build the most efficient intergalactic factory in space simulation strategy game Dyson Sphere Program! Harness the power of stars, collect resources, plan and design production lines and develop your interstellar factory from a small space workshop to a galaxy-wide industrial empire.
Why similar: Space 28.7%, Building 21.9%, Space Sim 18.1% ★, Sci-fi 16.9%, Simulation 6.2%
Why You'll Like It: While more focused on logistics, it offers a grand sense of scale and building that appeals to fans of space-based construction.
- #28 Ostranauts
79% matchMostly Positive80% of 2,398 reviews2020
Dev: Blue Bottle GamesPub: Kitfox Games
Windows
Median: 5.1 hrsMean: 26.8 hrs≥1hr: 71%
Navigate your scrappy ship through the boneyard in search of valuable parts in abandoned vessels. Use salvage to upgrade your ship, or sell it for cash to pay down your mounting debt, or restock fuel, air, or food. Fly and role-play aboard your dream spaceship in this hardcore noir space-sim.
Why similar: Spaceships 27.1% ★, Space Sim 18.7% ★, Difficult 15.2%, Space 11.6%, Sci-fi 9.4%
Why You'll Like It: A detailed space-sim that requires players to manage the complex, often failing, systems of their salvaged ships.
- #29 Space Engineers 2
77% matchMostly Positive76% of 4,293 reviews2025
Dev: Keen Software House
Windows
Median: 1.3 hrsMean: 7.1 hrs≥1hr: 58%
Space Engineers 2 is a sandbox about engineering and colonization where you build ships, stations, and planetary bases in a fully destructible world. Begin the story of Miro and Ivan Sokol, expand humanity’s foothold in the Almagest system, and fight to survive.
Why similar: Space Sim 20.4% ★, Building 16.8%, Space 16.5%, Sci-fi 14.6%, Survival 11.3%
- #30 Starmancer
79% matchMixed64% of 1,024 reviews2021
Dev: Ominux GamesPub: Chucklefish
Windows · Mac · Linux
Median: 1.6 hrsMean: 6.7 hrs≥1hr: 65%
From a small 2-man team comes a unique space station management sim. Take on the role of an A.I commanding a lost space ark. Try not to let your crew run amok and wreck the place.
Why similar: Space 16.7%, Building 15.9%, Sci-fi 15.7%, Survival 9.8%, Space Sim 7.7% ★
Why You'll Like It: Focuses on the management of a space station and its crew, emphasizing the construction and maintenance of vital systems.
- #31 Crying Suns
78% 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 38.5% ★, Space 20%, Sci-fi 16.1%, Strategy 8.5%, Pixel Graphics 6.9%
Why You'll Like It: A tactical space game that emphasizes fleet management and strategic decision-making during combat.
- #32 Stationeers
77% matchVery Positive88% of 8,897 reviews2017
Dev: RocketWerkz
Windows
Median: 9.8 hrsMean: 81.9 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: Building 24.6%, Space 24.3%, Sci-fi 21.8%, Survival 17.3%, Multiplayer 12%
- #33 Starcom: Unknown Space
75% matchVery Positive93% of 4,082 reviews2024
Dev: Wx3 Labs, LLC
Windows
Median: 7.9 hrsMean: 16.2 hrs≥1hr: 82%
Starcom: Unknown Space is an action RPG of space exploration and adventure. Build your own starship while discovering an epic story in a universe of strange mysteries, alien factions and uncharted worlds.
Why similar: Space Sim 29.7% ★, Space 25.8%, Sci-fi 13.8%, Building 10.9%, Exploration 7.9%
- #34 NEBULOUS: Fleet Command
76% 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 61.1% ★, Multiplayer 14.2%, Strategy 11.2%, Simulation 8.7%, Singleplayer 4.8%
- #35 Between the Stars
75% matchMostly Positive74% of 2,427 reviews2024
Dev: Isolated Games
Windows
Median: 54 minMean: 8.9 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 Sim 29.5% ★, Space 26.7%, Sci-fi 13.6%, Strategy 7.6%, Simulation 7.2%
- #36 PULSAR: Lost Colony
74% matchVery Positive90% of 5,694 reviews2021
Dev: Leafy Games
Windows · Mac · Linux
Median: 7.5 hrsMean: 16.8 hrs≥1hr: 88%
The co-op open-world space sim where everyone has a role! Pilot the ship. Reroute power. Launch nukes. Explore alien planets. Research new talents. Work together to find the Lost Colony! ...or just deliver some biscuits
Why similar: Spaceships 30.5% ★, Space Sim 22.7% ★, Space 12.2%, Sci-fi 10.7%, Online Co-Op 7.8%
- #37 Starbase
76% matchMixed56% of 6,702 reviews2021
Dev: Frozenbyte
Windows
Median: 14.3 hrsMean: 91.6 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 Sim 33.3% ★, Building 20.4%, Space 17.2%, Sci-fi 14.1%, Simulation 5.7%
- #38 Hardspace: Shipbreaker
73% matchVery Positive89% of 21,702 reviews2022
Dev: Blackbird Interactive
Windows
Median: 4.7 hrsMean: 23.9 hrs≥1hr: 86%
Equipped with cutting-edge salvaging tech, carve & slice spaceships to recover valuable materials. Upgrade your gear to take on more lucrative contracts and pay your billion credits debt to LYNX Corp!
Why similar: Space 27.7%, Space Sim 23.6% ★, Sci-fi 23%, Building 9.1%, Simulation 7.8%
- #39 Void Crew
71% matchVery Positive87% of 8,134 reviews2024
Dev: Hutlihut GamesPub: Focus Entertainment
Windows
Median: 9.0 hrsMean: 16.4 hrs≥1hr: 94%
Void Crew is a Chaotic, Co-op Roguelite game for 1 to 6 players: Outfit your spaceship and crew for thrilling quests, brave fierce enemies in Space Battles... and try not to panic!
Why similar: Space Sim 38.8% ★, Space 16.7%, Online Co-Op 12.4%, Multiplayer 11.7%, Sci-fi 9.2%
- #40 Endless Sky
74% matchVery Positive92% of 6,938 reviews2015
Dev: Michael Zahniser
Windows · Mac · Linux
Median: 1.0 hrsMean: 13.6 hrs≥1hr: 50%
Endless Sky is a 2D space trading and combat game inspired by the classic Escape Velocity series. Work your way up from a relatively wimpy shuttle, cargo ship, or fighter, to a highly upgraded and customized flagship or to a massive fleet of warships or freighters.
Why similar: Space 40.2%, Space Sim 19.9% ★, Sci-fi 17.1%, Simulation 5.1%, Exploration 4.4%
- #41 Starcom: Nexus
73% matchVery Positive91% of 2,274 reviews2019
Dev: Wx3 Labs, LLC
Windows · Linux
Median: 3.8 hrsMean: 13.6 hrs≥1hr: 84%
Suddenly thrown into an unknown galaxy, you must explore, fight or befriend aliens and transform your ship from a small survey vessel into a powerful battlecruiser to unravel the mystery of the forces that brought you here and find your way home.
Why similar: Space 32.5%, Space Sim 22.5% ★, Sci-fi 19.8%, Building 8.6%, Exploration 7.9%
- #42 Executive Assault 2
72% matchVery Positive83% of 1,726 reviews2023
Dev: Hesketh Studios Ltd
Windows · Mac
Median: 4.0 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: Space Sim 33.7% ★, Building 19.7%, Space 16.7%, Sci-fi 11.7%, Multiplayer 7.7%
- #43 Out of Orbit
72% matchVery Positive80% of 125 reviews2023
Dev: Case Yellow Labs
Windows
Design, build, or pirate spaceships. Build bases on planets. Explore endless randomly generated universes, travel through black holes, command your crew, survive cosmic events, collect and trade materials, battle epic bosses, and much more. The sky is the limit, literally!
Why similar: Spaceships 38% ★, Space 14.4%, Building 10.3%, Survival 8.3%, Strategy 7.7%
- #44 Kerbal Space Program 2
73% matchMostly Negative27% of 31,135 reviews2023
Dev: Intercept GamesPub: Private Division
Windows
Median: 7.7 hrsMean: 19.1 hrs≥1hr: 86%
Kerbal Space Program 2 is the sequel to the acclaimed space-flight simulation game Kerbal Space Program. Enter the next generation of space adventure with exciting new parts, stunning visuals, fully revamped UI and Map View, and rich new environments to explore.
Why similar: Space Sim 21.8% ★, Space 16.8%, Building 16%, Difficult 12.1%, Sci-fi 10.2%
- #45 Space Architect
70% matchMostly Positive76% of 283 reviews2024
Dev: Albert WiatrPub: PlayWay S.A.
Windows
Design your dream space station in Space Architect! Master the power of automation or 'hire' an army of crewmates to handle your ever-growing production. Mine asteroids, fabricate goods, and engage in interstellar trade to pay off the menacing Big Evil Corp. Will you thrive in the vastness of space?
Why similar: Building 22%, Sci-fi 20.5%, Space 16.9%, Survival 16.1%, Strategy 9.5%
- #46 ERA ONE
69% matchVery Positive86% of 1,348 reviews2025
Dev: Team Complex LTD
Windows
Median: 3.4 hrsMean: 14.0 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: Space 40.5%, Sci-fi 16.8%, Exploration 16.6%, Strategy 13.6%, Online Co-Op 10.1%
- #47 Stellar Warfare
71% 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: Space 23.2%, Sci-fi 20.1%, Online Co-Op 15.4%, Multiplayer 11%, Strategy 8.6%
- #48 Void War
67% 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 33.8% ★, Space 19.7%, Difficult 13.8%, Sci-fi 12.8%, Strategy 6.5%
- #49 Airships: Conquer the Skies
69% matchOverwhelmingly Positive96% of 6,403 reviews2018
Dev: David Stark
Windows · Mac · Linux
Median: 6.3 hrsMean: 36.9 hrs≥1hr: 79%
Construct mighty steampunk airships and fly them into battle, waging war and conquering the skies!
Why similar: Building 52.2%, Multiplayer 23.6%, Strategy 13.3%, 2D 10.8%
- #50 Spaceflight Simulator
67% matchOverwhelmingly Positive96% of 7,486 reviews2022
Dev: Team Curiosity ✦
Windows · Mac
Median: 4.6 hrsMean: 14.2 hrs≥1hr: 84%
In Spaceflight Simulator, you will get to build your rockets, plan launches and flights, attempt landings, deploy payloads and explore new worlds.
Why similar: Space Sim 30.2% ★, Spaceships 21.8% ★, Space 17.3%, Building 7.3%, Exploration 5.8%
- #51 Desynced
66% matchVery Positive81% of 1,825 reviews2026
Dev: Stage Games Inc.Pub: Forklift Interactive
Windows
Median: 4.2 hrsMean: 19.3 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: Building 20.3%, Sci-fi 19.5%, Survival 14%, Online Co-Op 11.6%, Multiplayer 11%
- #52 Outworld Station
67% matchVery Positive90% of 506 reviews2025
Dev: Trickjump Games Ltd
Windows
Median: 3.9 hrsMean: 9.1 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: Space 34.2%, Sci-fi 20.7%, Online Co-Op 15.3%, Simulation 10.2%, Strategy 10%
- #53 Astrox Imperium
68% matchVery Positive85% of 1,210 reviews2019
Dev: Jace Masula
Windows
Median: 4.2 hrsMean: 16.4 hrs≥1hr: 67%
Astrox Imperium is a relaxing space game where you fly around a generated universe. Mining, Fighting, Building, Exploring, and Surviving. What makes this game unique? You have complete control of how it plays. A robust sandbox and lots of MOD tools. Make it your game, and play it your own way.
Why similar: Space Sim 34.8% ★, Space 34.3%, Sci-fi 11.2%, Simulation 8.3%, Atmospheric 4.7%
- #54 StarShip Constructor
70% matchMixed67% of 267 reviews2017
Dev: SSCTEAM
Windows
Galaxy is on fire! Only you can save it! More than 20 modules and even more weapons and equipment,you can design your own spaceship and defeat the most powerful ships in galaxy!
Why similar: Space 47.1%, Building 42.7%, Indie 10.2%
- #55 Starship Corporation
70% 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: Space 31.6%, Strategy 21.9%, Simulation 21.3%, Sci-fi 16.3%, Indie 8.9%
- #56 Astro Colony
66% matchVery Positive82% of 2,509 reviews2022
Dev: Terad Games
Windows
Median: 4.7 hrsMean: 16.3 hrs≥1hr: 78%
Explore endless Universe and create the most efficient constellation of colonies. Build conveyor systems to automate production. Take care of Astronauts and their needs! Establish new colonies as part of intergalactic simulation.
Why similar: Space Sim 24.2% ★, Space 23.1%, Building 18.1%, Multiplayer 10.5%, Strategy 7.2%
- #57 Kinetic Void
71% matchOverwhelmingly Negative17% of 1,556 reviews2014
Dev: Badland Studio
Windows · Mac · Linux
Median: 1.9 hrsMean: 3.6 hrs≥1hr: 76%
Kinetic Void is a 3D space adventure with a focus on customization and enjoyable space simulation. The shipyard allows players to construct their ship piece by piece. Ships can be as simplistic as a cockpit, a hull, a engine and a gun, or as complex as a player wants.
Why similar: Space 39.6%, Sci-fi 17.7%, Space Sim 14.2% ★, Building 10.7%, Simulation 9.9%
- #58 Keplerth
65% matchVery Positive85% of 4,121 reviews2022
Dev: TAROPub: Gamirror Games
Windows
Median: 8.0 hrsMean: 16.2 hrs≥1hr: 85%
Welcome to Keplerth! Try to survive on a hostile alien planet in this 2D sandbox RPG, where you can choose to live alone or fight side by side with your friends in the online multiplayer mode. Survive, build, farm, fight, and explore your way to victory in this open-world adventure!
Why similar: Building 23.6%, Sci-fi 20.1%, Survival 17.3%, Exploration 10.3%, Multiplayer 8.8%
- #59 Wayward Terran Frontier: Zero Falls
68% matchMixed68% of 536 reviews2016
Dev: Reason Generator Inc.
Windows
2d space combat like no other. From the perspective of a single crew member, explore the fully destructible interior of any ship in a massive living world. Engage in space combat with no hitpoints where you know your enemy is dead when you see them fall out of their ship into the cold dark of space.
Why similar: Space Sim 35.2% ★, Space 17.9%, Sci-fi 13.5%, Building 10.4%, Simulation 6%