- #1 Cosmoteer: Starship Architect & Commander
97% matchVery Positive94% of 12,715 reviews2022
Dev: Walternate Realities
Windows
Median: 19.5 hrsMean: 41.2 hrs≥1hr: 92%
Design and simulate the starships of your dreams! Command your ship or fleet in epic battles and manage your crew while exploring a dangerous galaxy. Play alone or with friends, test your ships in online PvP, and let your imagination reach for the stars!
Why similar: Space Sim 29.7%, Space 17.1%, Sci-fi 15.7%, Building 14.7%, Strategy 6.3%
Why You'll Like It: Features deep ship-building mechanics where you must design your vessel's layout to optimize combat performance and crew efficiency.
- #2 FTL: Faster Than Light
96% matchOverwhelmingly Positive95% of 78,209 reviews2012
Dev: Subset Games
Windows · Mac · Linux
Median: 7.1 hrsMean: 34.0 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 28.4%, Roguelike 22.5%, Space Sim 22%, Sci-fi 15%, Strategy 9.4%
Why You'll Like It: This is the definitive ship management roguelike that established the tactical combat and crew-management mechanics found in Pixel Starships.
- #3 Space Haven
96% matchVery Positive86% of 10,886 reviews2026
Dev: Bugbyte Ltd.
Windows · Mac · Linux
Median: 4.2 hrsMean: 20.9 hrs≥1hr: 71%
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 24%, Base Building 16.4%, Post-apocalyptic 14.1%, Space 14.1%, Building 11.5%
Why You'll Like It: Combines ship-building with colony-sim mechanics, requiring you to manage oxygen, temperature, and crew needs while navigating deep space.
- #4 Hades' Star
95% matchMostly Positive73% of 2,671 reviews2019
Dev: Parallel Space Inc
Windows · Mac
Median: 1.6 hrsMean: 54.6 hrs≥1hr: 55%
A unique space strategy game where thousands of players participate in one shared galaxy.
Why similar: Space 30.4%, Massively Multiplayer 28.6%, 4X 15.7% ★, Strategy 9.7%, Sci-fi 9.5%
Why You'll Like It: Offers a persistent, massively multiplayer space strategy experience that focuses on long-term base building and fleet coordination.
- #5 Pixel Starships 2
94% matchMostly Negative27% of 381 reviews2025
Dev: SavySoda
Windows · Mac
First Glimpse on Steam Next: Build, Configure, and Manage every aspect of your own Starship. An FTL-esque game in a MMO setting. Pre bundled with deep strategy, exploration, PVP, market economy, trading, mining. Basically everything a star captain wants to do after a day at the office :)
Why similar: Space Sim 15.9%, Automation 14.7%, Massively Multiplayer 13.3%, Space 10%, Base Building 9.6%
Why You'll Like It: The direct sequel to the seed game, offering refined mechanics and expanded features for fans of the original.
- #6 Trigon: Space Story
94% matchMixed68% of 1,421 reviews2022
Dev: Sernur.techPub: Gameforge 4D GmbH
Windows · Mac · Linux
Median: 3.7 hrsMean: 7.2 hrs≥1hr: 85%
Trigon: Space Story sees you take command of your very own spaceship. Carry out tactical battles, defend your vessel against space pirates, and escape from enemy territory. On your voyages, you’ll face a slew of tricky decisions in your quest to uncover the mystery of the galaxy.
Why similar: Space 36.8%, Roguelike 26.6%, Sci-fi 21.9%, Strategy 14.7%
Why You'll Like It: A direct spiritual successor to the FTL formula that focuses heavily on tactical ship combat and complex crew management.
- #7 Crying Suns
93% matchVery Positive86% of 4,513 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: Post-apocalyptic 23.8%, Space 23.3%, Roguelike 14.1%, Sci-fi 14.1%, Strategy 10.3%
Why You'll Like It: A tactical roguelite that captures the feeling of commanding a capital ship and managing a fleet through a procedurally generated galaxy.
- #8 Starship Theory
92% matchMixed50% of 1,119 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 35.2%, Space 27%, Sci-fi 12.8%, Strategy 11.3%, Building 9.3%
Why You'll Like It: Focuses on the construction and management of a spaceship, requiring you to balance resources and crew tasks to survive in deep space.
- #9 Istrolid
91% matchVery Positive87% of 2,693 reviews2016
Dev: treeform
Windows · Mac · Linux
Median: 1.0 hrsMean: 10.9 hrs≥1hr: 50%
In Istrolid you design your own unique spaceships from a large number of parts to fit your strategy and play style. With no set units or factions you are free to create a fleet where each ship has its own balanced strengths and weaknesses, from basic fighters and bombers to hulking battleships and speedy destroyers.
Why similar: Building 30%, Space 29%, Strategy 14.1%, Multiplayer 10.9%, Sci-fi 10.4%
Why You'll Like It: A free-to-play strategy game that allows for highly customizable ship building and tactical fleet battles against other players.
- #10 Shortest Trip to Earth
91% matchMostly Positive77% of 1,435 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: Space Sim 27.1%, Space 21.7%, Sci-fi 13.7%, Aliens 13.1%, Roguelike 12.7%
Why You'll Like It: A challenging survival-focused ship management game where every decision regarding your crew and ship systems is critical to your journey.
- #11 Barotrauma
89% matchVery Positive94% of 87,800 reviews2023
Dev: FakeFishPub: Daedalic Entertainment
Windows · Mac · Linux
Median: 8.9 hrsMean: 55.5 hrs≥1hr: 91%
Barotrauma is a 2D co-op submarine simulator – in space, with survival horror and RPG elements. Steer your submarine, complete missions, fight monsters, fix leaks, operate machinery, man the guns and craft items, and stay alert: danger in Barotrauma doesn’t announce itself!
Why similar: Multiplayer 35.7%, Sci-fi 33.6%, Strategy 16%, 2D 14.6%
Why You'll Like It: Provides an intense, cooperative ship management experience where you must maintain complex systems while surviving a hostile environment.
- #12 Nova Empire
89% matchMixed53% of 295 reviews2022
Dev: Gamebear Tech
Windows
Median: 1.6 hrsMean: 11.8 hrs≥1hr: 55%
Build up a Space Empire and establish control of the Galaxy and the Universe! Nova Empire is a multiplayer space game in which the aim is to build your empire and conquer the galaxy in epic space battles against your rivals with other allies worldwide!
Why similar: 4X 28.9% ★, Space Sim 28.9%, Base Building 11.7%, Sci-fi 11.3%, Strategy 7.7%
Why You'll Like It: A mobile-to-PC strategy game that focuses on 4X elements and massive alliance-based space warfare.
- #13 Endless Sky
88% matchVery Positive92% of 7,056 reviews2015
Dev: Michael Zahniser
Windows · Mac · Linux
Median: 1.0 hrsMean: 13.7 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 47.1%, Space Sim 27%, Sci-fi 15%, RPG 4.5%, 2D 4.2%
Why You'll Like It: A classic-style space exploration game that allows you to upgrade your ship and manage your fleet in a vast, open galaxy.
- #14 Holy Potatoes! We’re in Space?!
87% matchMixed67% of 981 reviews2017
Dev: Daylight StudiosPub: Daedalic Entertainment
Windows · Mac · Linux
Median: 5.5 hrsMean: 6.8 hrs≥1hr: 89%
Holy Potatoes! We’re in Space?! is a whacky space exploration game where you manage your very own spaceship, craft hundreds of weapons, and explore the vastness of a veggie-filled universe.
Why similar: Space 43%, Sci-fi 26%, Strategy 15.4%, RPG 8.1%, 2D 7.5%
Why You'll Like It: Features quirky ship management and exploration mechanics that mirror the base-building and crew-recruitment aspects of Pixel Starships.
- #15 Star Sonata 2
86% matchMixed67% of 292 reviews2020
Dev: Landauer Games
Windows
Median: 2.1 hrsMean: 60.0 hrs≥1hr: 60%
Star Sonata 2 is a space sandbox MMO that combines elements of action, RPG, and empire creation into a truly unique MMO. Explore the sandbox style universe, build persistent bases, construct trade ships, and even fight your way to the top and claim the Emperor’s Throne!
Why similar: Space Sim 33.6%, Base Building 22.6%, Space 21.9%, Building 16.1%, RPG 5.8%
Why You'll Like It: A space-based MMORPG that emphasizes base building, trade, and ship customization within a persistent universe.
- #16 Void Crew
83% matchVery Positive86% of 8,357 reviews2024
Dev: Hutlihut GamesPub: Focus Entertainment
Windows
Median: 9.1 hrsMean: 16.7 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 55.6%, Space 20.1%, Sci-fi 12.3%, Multiplayer 12%
Why You'll Like It: A cooperative space-sim that emphasizes the chaotic reality of managing ship systems alongside a crew during intense combat.
- #17 Starbase
85% matchMixed56% of 6,734 reviews2021
Dev: Frozenbyte
Windows
Median: 14.3 hrsMean: 91.4 hrs≥1hr: 91%
Starbase is a hybrid voxel/vertex-based space MMO with a fully destructible and infinitely expanding universe, with a focus on building and designing spaceships and stations, exploration, resource gathering, crafting, trading, and combat.
Why similar: Space Sim 32.8%, Massively Multiplayer 24.1%, Building 15.2%, Space 14.8%, Sci-fi 9.1%
Why You'll Like It: An expansive MMO that features incredibly detailed ship building and destruction mechanics in a massive, open-world setting.
- #18 PULSAR: Lost Colony
82% matchVery Positive90% of 5,719 reviews2021
Dev: Leafy Games
Windows · Mac · Linux
Median: 7.4 hrsMean: 16.7 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: Space Sim 47.9%, Space 22.3%, Sci-fi 14.7%, Multiplayer 9.3%, RPG 5.7%
Why You'll Like It: A multiplayer-focused space sim where each player takes on a specific role on the ship, mirroring the crew-management depth of Pixel Starships.
- #19 The Last Starship
81% matchMostly Positive75% of 1,617 reviews2026
Dev: Introversion Software
Windows · Mac
Median: 5.9 hrsMean: 11.4 hrs≥1hr: 80%
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 26.4%, Automation 15.4%, Base Building 15%, Space 13.9%, Building 11.3%
Why You'll Like It: A sandbox simulation game that focuses on the intricate details of building and operating a functional spaceship.
- #20 Second Galaxy
84% matchMixed52% of 1,202 reviews2019
Dev: Zilong Game Limited
Windows
Median: 42 minMean: 9.5 hrs≥1hr: 37%
Second Galaxy is an open world sci-fi game that combines RPG and SLG elements. You can navigate hundreds of different space ships, team up with players to form alliances, and engage in intergalactic battles with other players around the world.
Why similar: Massively Multiplayer 43.1%, Space 27.4%, Sci-fi 11.1%, Strategy 10.3%, RPG 8.1%
Why You'll Like It: A massive sci-fi strategy MMO that combines exploration, ship building, and large-scale player-driven politics.
- #21 Stars in Shadow
82% matchMostly Positive79% of 833 reviews2017
Dev: Ashdar GamesPub: Iceberg Interactive
Windows
Median: 2.4 hrsMean: 14.5 hrs≥1hr: 66%
Stars in Shadow is a turn-based 4X strategy game and a vivid tribute to the genre classics. Compete with alien factions to explore and colonize nearby starsystems, build fleets to defend against rivals, negotiate or conquer them. Win by unifying the galaxy, through diplomacy or force.
Why similar: 4X 56.2% ★, Space 17.4%, Strategy 11.9%, Sci-fi 9.7%, Turn-Based Tactics 4.8%
Why You'll Like It: A 4X strategy game that captures the sci-fi aesthetic and strategic depth of managing a space-faring civilization.
- #22 Starborne: Frontiers
79% matchMixed67% of 298 reviews2024
Dev: Solid Clouds hf.
Windows
Starborne: Frontiers is a free-to-play tactical autobattler with hundreds of unique ships. Form your fleet, customize it with a variety of equipment, and use strategy to create the perfect battlefield formation. Take on bounties, engage in the PvP arena, and bring order to the Frontier.
Why similar: Space Sim 48.8%, Space 18.7%, Sci-fi 11.9%, Strategy 9.6%, RPG 6.3%
Why You'll Like It: A tactical RPG that uses auto-battler mechanics and ship collection to create a deep, strategic multiplayer experience.
- #23 Space Commander: War and Trade
80% matchMixed68% of 701 reviews2020
Dev: Home Net Games
Windows · Mac · Linux
Median: 1.2 hrsMean: 9.2 hrs≥1hr: 56%
Fight, explore the stars, trade, and lead your fleet across the galaxySpace Commander: War and Trade is an ultimate single player space-sim featuring spectacular graphics, intuitive combat and deep mechanics.
Why similar: Space Sim 38.6%, Base Building 23%, Aliens 12.8%, Space 12.3%, RPG 6.6%
Why You'll Like It: Offers a mix of action, RPG, and base-building elements that allow you to manage your fleet while exploring the galaxy.
- #24 Slipstream: Rogue Space
78% matchVery Positive92% of 144 reviews2024
Dev: Subpixel Studios
Windows · Mac
A multiplayer roguelike about teamwork, survival...and cute animals in space! Play with a few friends or join a streamer's crew of dozens as you work together to battle aliens across the vast Rogue Space.
Why similar: Space Sim 36.6%, Sci-fi 12.8%, Aliens 12.5%, Roguelike 11.4%, Multiplayer 8.1%
Why You'll Like It: A co-op space-sim that focuses on tactical combat and ship management in a roguelike environment.
- #25 Sid Meier's Starships
81% matchMixed50% of 2,467 reviews2015
Dev: Firaxis GamesPub: 2K
Windows · Mac
Median: 4.6 hrsMean: 7.5 hrs≥1hr: 87%
Build and command a fleet of starships and travel between planets as you explore, build, negotiate, and fight to preserve your vision for humanity.
Why similar: Space 40.8%, 4X 21% ★, Sci-fi 19.8%, Strategy 18.5%
Why You'll Like It: A turn-based strategy game that emphasizes ship customization and tactical combat in a modular, mission-based structure.
- #26 Andromeda: Rebirth of Humanity
79% matchMixed65% of 116 reviews2021
Dev: Null Reference Games
Windows · Linux
Andromeda is a hybrid between a Space 4X and an MMO. An online universe sandbox with 2 galaxies full of planets to colonize. Build structures like Mines to generate resources to build ships and engage in fleet battles with NPCs and other players, or just sit and chat with the friendly community.
Why similar: Space Sim 38.6%, Massively Multiplayer 18.2%, Space 12.7%, Strategy 11.4%, Building 9%
Why You'll Like It: A colony-sim and strategy game that focuses on the economic and logistical challenges of surviving in deep space.
- #27 Unnamed Space Idle
75% matchVery Positive93% of 4,261 reviews2023
Dev: SylvPub: Jdog Corp
Windows · Linux
Median: 10.4 hrsMean: 296.6 hrs≥1hr: 78%
Destroy endless waves of alien ships that have all but wiped out humanity in this long form, unfolding, sci-fi idle game. Customize your ship with different weapons and defenses to defeat specific enemy types and utilize a ton of different systems to increase your overall power.
Why similar: Space 34.8%, Automation 27.2%, Sci-fi 16.2%, Aliens 15.9%, 2D 5.9%
- #28 Galaxy Idle Clicker
75% matchMostly Positive75% of 1,170 reviews2025
Dev: SoehnlePub: TimeLost Gaming
Windows
Median: 10.5 hrsMean: 371.6 hrs≥1hr: 70%
Embark on an interstellar journey with Galaxy Idle Clicker! Conquer galaxies, upgrade your spaceship, and face off against a myriad of enemy ships. With engaging minigames, powerful upgrades, GIC delivers an unparalleled idle space adventure. Join the cosmic conquest today and dominate the universe!
Why similar: Space Sim 45.9%, Space 35.5%, Sci-fi 13.5%, 2D 5.1%
- #29 Nova: Space Armada
77% matchMixed51% of 253 reviews2024
Dev: STONE3 PTE. LTD.
Windows
An exceptional sci-fi strategy game based on space adventure as its core.
Why similar: 4X 28.1% ★, Space Sim 22.3%, Massively Multiplayer 17.2%, Wargame 9.6%, Sci-fi 8.8%
- #30 Star Hunter - Infinite Lagrange
77% matchMixed57% of 1,049 reviews2021
Dev: NetEase Games
Windows
Median: 2.7 hrsMean: 91.8 hrs≥1hr: 61%
In a remote corner of the Milky Way, you, a star hunter, will control a fleet, take on a wide variety of bounty contracts and missions, and venture into the vastness of space. You will hunt for mysterious items for your employers and explore specific targets in uncharted territory.
Why similar: Massively Multiplayer 30.1%, Space Sim 22.1%, Space 18.6%, Base Building 14.2%, Strategy 10.6%
- #31 The Infinite Black
78% matchMixed66% of 213 reviews2016
Dev: SpellbookPub: www.Spellbook.com
Windows · Mac · Linux
Median: 5.5 hrsMean: 82.8 hrs≥1hr: 72%
Fleet up with thousands of players in The Infinite Black -- The wildly popular online space combat and adventure game! Command massive spaceships, form powerful corporations, and battle it out in never-ending intergalactic warfare!
Why similar: Massively Multiplayer 51.3%, Space 23.8%, Strategy 14.8%, RPG 10.1%
Why You'll Like It: A long-running space MMO that emphasizes strategy, fleet building, and player-versus-player combat.
- #32 Subspace Discovery
76% matchMostly Positive76% of 140 reviews2023
Dev: FLICK Comp GmbH
Windows
Fly through Subspace, build your own ship, and engage in epic battles. Mine asteroids and research new technologies. Uncover the origins of the alien homeworld by solving weekly events in this Co-op PvE MMO.
Why similar: Massively Multiplayer 28.7%, Space 22.4%, Base Building 13.4%, Sci-fi 12.2%, Building 9.5%
- #33 SpaceCraft
72% matchMixed67% of 2,264 reviews2026
Dev: Shiro Games
Windows
Median: 13.9 hrsMean: 37.2 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 Sim 23.3%, Massively Multiplayer 18.3%, Automation 17%, Space 13.8%, Base Building 12.8%
- #34 Exocraft
76% matchMixed52% of 361 reviews2019
Dev: GoldFire Studios
Windows · Mac
Design unique spaceships and build the ultimate space mining fleet as you team up to battle for resources and glory in this massively multiplayer action strategy set in an alien wasteland.
Why similar: Space Sim 24%, Massively Multiplayer 22.7%, Space 13%, Building 12.9%, Sci-fi 9.7%
- #35 Final Upgrade
72% matchMostly Positive77% of 457 reviews2022
Dev: TaosX
Windows
Median: 4.2 hrsMean: 12.2 hrs≥1hr: 69%
Help humanity to spread throughout the cosmos by exploring new worlds, building space factories and setting up trade routes. Research advanced technologies to increase efficiency and unlock new paths of development. Fight off other artificial intelligences in your goal to reach the Final Upgrade!
Why similar: Automation 24%, Space Sim 21.1%, Base Building 15.5%, Space 14.7%, Building 11.7%
- #36 SpaceInvasion
73% matchMixed54% of 50 reviews2023
Dev: BITMEUP
Windows · Mac
As a commander of an imperial space force you will conquer unexplored planets, create colonies and equip your fleet for attack or defense. Strategic warfare is the focus of Spaceinvasion!
Why similar: Space Sim 28.8%, Wargame 17.2%, Building 12.2%, Aliens 11.1%, Sci-fi 10.7%
- #37 Astro Lords
74% matchMixed65% of 230 reviews2015
Dev: Aratog LLCPub: Conglomerate 5
Windows · Mac · Linux
Median: 48 minMean: 6.0 hrs≥1hr: 44%
Player bases are located on asteroids, which travel within the Oort Cloud. Once they’ve acquired the appropriate skills, players can control their asteroid’s movements. Mass-combat enthusiasts will love the Arena: here, players can battle it out against alien races or other Astro Lord players.
Why similar: Space Sim 27.4%, Massively Multiplayer 24.7%, Space 18.4%, Sci-fi 11.8%, Multiplayer 6.5%
- #38 Dust Fleet
71% matchMostly Positive76% of 222 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: 4X 30.1% ★, Space Sim 25%, Space 15%, Sci-fi 10.2%, Wargame 7.2%
- #39 Space Wars: Interstellar Empires
73% matchMixed65% of 244 reviews2017
Dev: Desert Owl Games LLCPub: ToHeroes Game Studios LLC
Windows · Mac
Median: 1.2 hrsMean: 17.6 hrs≥1hr: 54%
Helm your own ship, battle for supremacy in a multi-faction war, and conquer the cosmos in this science fiction turn-based strategy game. Select from more than 100+ diverse star ships and fight for territory across a 2D hex-based grid.
Why similar: Massively Multiplayer 61.8%, Turn-Based Tactics 21.1%, Strategy 17.1%
- #40 Sins of a Solar Empire II
68% matchVery Positive84% of 8,475 reviews2024
Dev: Ironclad Games CorporationPub: Stardock Entertainment
Windows
Median: 9.5 hrsMean: 30.9 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: 4X 38.5% ★, Space 24.7%, Sci-fi 10.8%, Base Building 10.4%, Strategy 9.1%
- #41 Cantata
71% matchMixed65% of 143 reviews2023
Dev: Afterschool StudioPub: Modern Wolf
Windows
Median: 2.1 hrsMean: 2.6 hrs≥1hr: 69%
Crash-landed in the universe of Cantata, will you expand your empire or bring peace to the war torn planet? Grow your army, manage resources and discover the colourful planet of Shoal, its people, and the armed forces overrunning this land in this genre-defining Grand Tactics game.
Why similar: 4X 23.7% ★, Automation 17.2%, Base Building 13.5%, Building 9%, Turn-Based Tactics 8.9%
- #42 Periphery Online
69% matchMixed73% of 52 reviews2026
Dev: Aleksandr Nagaev
Windows
A refugee capsule lands on an uninhabited planet. You have to survive, rebuild civilization and, if possible, regain control over the Earth. One big universe, one endless pvp session for all players.
Why similar: Massively Multiplayer 25.3%, 4X 24.9% ★, Space 19.1%, Sci-fi 12.2%, Wargame 11.6%
- #43 EVE Online
69% matchMostly Positive73% of 38,998 reviews2010
Dev: Fenris Creations
Windows · Mac
Median: 3.1 hrsMean: 139.2 hrs≥1hr: 73%
Over 20 years of legendary space battles! Explore a massive living universe of danger and opportunity in a challenging and highly rewarding space adventure. Fight, trade, build, and connect with a universe driven and shaped directly by players.
Why similar: Space Sim 40.1%, Massively Multiplayer 22.8%, Space 20.1%, Sci-fi 10.7%, Strategy 6.3%
- #44 StarMade
70% matchMixed68% of 2,989 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 31.7%, Space Sim 16.6%, Building 16.5%, Sci-fi 11.3%, Massively Multiplayer 8.6%
- #45 Stacks:Space!
68% matchVery Positive84% of 107 reviews2023
Dev: Stacks:Engine
Windows · Mac · Linux
Stacks:Space is a space-themed base builder card game with rogue-like elements. Buy booster packs to get new cards, discover craft recipes by stacking cards together, create structures, manufacture drones and droids, defend your base from enemies, visit distant planets, and more!
Why similar: Space Sim 35.2%, Space 15.5%, Building 13.9%, Aliens 13.4%, Sci-fi 13%
- #46 Destination Sol
69% matchMostly Positive79% of 1,362 reviews2015
Dev: MovingBlocks
Windows · Mac · Linux
Median: 30 minMean: 3.8 hrs≥1hr: 30%
Pilot your ship in the seamless open world made of space, planets, and more. Find new ships and equipment, find allies and beat all the enemies in this open source space shooter!
Why similar: Space 51.2%, RPG 15.8%, Roguelike 9.5%, 2D 8.4%, Sci-fi 6.6%
- #47 Operation: New Earth
70% matchMixed60% of 832 reviews2016
Dev: Hunted Cow Games
Windows · Mac
Median: 2.8 hrsMean: 35.5 hrs≥1hr: 64%
Operation: New Earth is an intense sci-fi multiplayer strategy game in which you must command an advanced military facility to defend Earth from a hostile alien invasion. Create an alliance, gather resources, and unlock advanced technology to level up your stronghold!
Why similar: Massively Multiplayer 51.1%, Strategy 19%, Sci-fi 12.1%, Aliens 11.2%, Multiplayer 6.6%
- #48 Iron Armada
67% matchMostly Positive77% of 177 reviews2024
Dev: Bluedrake42Pub: Drakeling Labs
Windows
Median: 1.4 hrsMean: 812.1 hrs≥1hr: 53%
Iron Armada is a multiplayer, space-faring combat game where players must team up to build a fleet of ships in order to survive the perils of space and defeat the opposing player faction. Build ships of all shapes and sizes, mine resources, and scavenge parts with friends to conquer the universe!
Why similar: Strategy 59.1%, Space 25.5%, Multiplayer 7%, Pixel Graphics 5.4%, 2D 3%
- #49 Galaxy Life
65% matchVery Positive92% of 8,546 reviews2022
Dev: Phoenix Network
Windows · Linux
Median: 2.8 hrsMean: 35.3 hrs≥1hr: 65%
The universe is full of Starlings, tiny orange aliens that want to take over the galaxy. Create your own space colony, fight epic battles and discover new planets. Train your soldiers, develop your technology and create unimaginable gadgets. Enjoy this huge social game with friends!
Why similar: Wargame 30.2%, Aliens 22.5%, Base Building 21.2%, Sci-fi 13.5%, Strategy 12.6%
- #50 Stellar Initiative
66% matchMostly Positive76% of 404 reviews2024
Dev: Five Head Games
Windows
Median: 1.8 hrsMean: 6.5 hrs≥1hr: 66%
Stellar Initiative is a roguelike tower defense game where you land on the planet and use your orbit ship to deliver buildings and support you with fire. Complete missions, install new upgrades, discover powerful artifacts, and find the best strategy!
Why similar: Base Building 18.6%, Roguelike 16.5%, Sci-fi 13.9%, Aliens 12%, Space 10.8%
- #51 Prospector
66% matchMostly Positive71% of 152 reviews2025
Dev: Loonworks Games
Windows
Land on a distant planet in this chill resource management game. Harvest alien resources, build and automate machinery, uncover secrets across the stars and strike shipping deals with distant colonies for exclusive rewards!
Why similar: Automation 25%, Base Building 18.8%, Space 14.6%, Building 13.9%, Sci-fi 9.3%
- #52 StarDrive
70% matchMixed45% of 1,487 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: 4X 53.5% ★, Space 22.8%, Strategy 13%, Sci-fi 10.7%
- #53 Sector Space
64% matchVery Positive96% of 98 reviews2025
Dev: Robin M. FarrellPub: Outer Vision Games
Windows · Linux
Explore a procedurally generated galaxy, mine asteroids, refine minerals, colonize planets, build stations, deploy drones, salvage rare items, construct gear, level up, improve your ship, assemble a fleet, engage in combat, and take on the void.
Why similar: Space Sim 50.7%, RPG 11.6%, Building 11.5%, Space 8.4%, Pixel Graphics 7.8%
- #54 Avorion
65% matchVery Positive90% of 14,488 reviews2020
Dev: Boxelware
Windows · Mac · Linux
Median: 18.5 hrsMean: 99.0 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 Sim 45.1%, Space 22.3%, Building 19.2%, Sci-fi 13.4%