- #1 EVE Online
97% matchMostly Positive73% of 39,351 reviews2010
Dev: Fenris Creations
Windows · Mac
Median: 3.0 hrsMean: 138.6 hrs≥1hr: 72%
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: Trading 28.5%, Space Sim 26.5%, Space 17.3%, Sandbox 12.4%, PvP 7.9%
Why You'll Like It: The definitive space sandbox MMO that shares the deep economic complexity and persistent empire-building found in Star Sonata 2.
- #2 Avorion
96% matchVery Positive90% of 14,549 reviews2020
Dev: Boxelware
Windows · Mac · Linux
Median: 18.8 hrsMean: 99.5 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 26.1%, Trading 19.4%, Space 16.7%, Sandbox 15.3%, Building 14.3%
Why You'll Like It: A sandbox space-sim that emphasizes ship building and exploration in a vast, procedurally generated galaxy.
- #3 Space Rangers HD: A War Apart
96% matchVery Positive94% of 7,267 reviews2013
Dev: SNK GamesPub: Fulqrum Publishing
Windows
Median: 3.9 hrsMean: 28.1 hrs≥1hr: 89%
Space adventure, open world RPG, strategy, arcade, quest and more!
Why similar: Space 62.7%, RPG 19.1%, Sandbox 12.2%, Procedural Generation 6.1%
Why You'll Like It: This top-down space RPG perfectly captures the trading, combat, and exploration loop that makes Star Sonata 2 so engaging.
- #4 Cosmoteer: Starship Architect & Commander
95% matchVery Positive94% of 12,820 reviews2022
Dev: Walternate Realities
Windows
Median: 19.2 hrsMean: 41.1 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 41.9%, Space 31.4%, Building 26.6%
Why You'll Like It: Features a top-down perspective with deep ship-design mechanics that mirror the modular building style of Star Sonata 2.
- #5 Prosperous Universe
94% matchMostly Positive73% of 1,103 reviews2022
Dev: simulogics
Windows
In Prosperous Universe start your galactic empire by trading on the real-time market exchange with other real players. Build your 1st base from humble beginnings & watch as your business flourishes with complex supply chain strategies. Economics, politics & realism fuel this immersive business MMO.
Why similar: MMORPG 23.4% ★, Trading 19.2%, Space Sim 14.6%, Base Building 13.2%, Space 10.8%
Why You'll Like It: A highly detailed space-trading simulation that captures the economic depth and market-driven gameplay of the seed title.
- #6 Reassembly
94% matchVery Positive94% of 4,094 reviews2015
Dev: Anisoptera GamesPub: Indie Voyage
Windows · Mac · Linux
Median: 5.0 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 32.6%, Building 29.3%, Sandbox 25.7%, Top-Down 7.7%, Physics 3.2%
Why You'll Like It: Offers a unique top-down sandbox experience where ship design and fleet management are central to survival and expansion.
- #7 StarMade
93% matchMixed68% of 2,991 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 35.8%, Sandbox 27.2%, Building 18.4%, Space Sim 14.5%, RPG 4.2%
Why You'll Like It: A voxel-based space sandbox that allows for massive ship and base construction in a persistent multiplayer environment.
- #8 VoidExpanse
92% matchMostly Positive71% of 768 reviews2015
Dev: AtomicTorch Studio
Windows · Mac · Linux
Median: 3.9 hrsMean: 6.1 hrs≥1hr: 93%
Explore the vast reaches of VoidExpanse -- mine asteroids, upgrade your ship, trade, complete missions, advance your character and survive fast-paced combat with hostile aliens and mercenaries in the rich and exciting Sci-Fi universe of VoidExpanse!
Why similar: Space 47.9%, Sandbox 23.2%, Top-Down 14.6%, RPG 14.4%
Why You'll Like It: A top-down space sandbox that focuses on RPG progression, trading, and faction-based combat in an open universe.
- #9 Interstellar Rift
91% matchMixed68% of 1,666 reviews2020
Dev: Split PolygonPub: Iceberg Interactive
Windows
Median: 4.2 hrsMean: 33.1 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 26.1%, Trading 23.5%, Building 14%, Space 13.9%, Sandbox 13.7%
Why You'll Like It: A multiplayer space-sim that focuses on ship construction and resource management within a persistent universe.
- #10 Space Engineers
90% matchVery Positive89% of 134,313 reviews2019
Dev: Keen Software House
Windows
Median: 9.0 hrsMean: 96.4 hrs≥1hr: 88%
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 21.1%, Base Building 15.5%, Space 14.2%, Sandbox 12.5%, Building 12%
Why You'll Like It: Focuses heavily on engineering and base-building in space, providing the creative freedom found in the seed game's construction mechanics.
- #11 Starbase
91% matchMixed56% of 6,753 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 32.2%, Building 19.1%, Space 18.8%, Sandbox 16.5%, Robots 13.4%
Why You'll Like It: A massive space MMO featuring destructible environments and complex ship building that appeals to the sandbox nature of Star Sonata 2.
- #12 Void Destroyer 2
89% matchVery Positive80% of 674 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: Space Sim 29.5%, Trading 25.1%, Space 16.9%, Sandbox 16.3%, Building 12.1%
Why You'll Like It: Combines top-down combat with sandbox strategy elements, allowing players to build their own space-faring organization.
- #13 X4: Foundations
88% matchMostly Positive80% of 30,013 reviews2018
Dev: Egosoft
Windows · Linux
Median: 5.0 hrsMean: 95.3 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: Trading 30.8%, Space Sim 29.8%, Space 22.5%, Sandbox 16.9%
Why You'll Like It: Provides an unparalleled single-player sandbox experience where you can build an empire, manage trade fleets, and pilot ships directly.
- #14 Endless Sky
87% matchVery Positive92% of 7,090 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 41.8%, Trading 22.6%, Space Sim 18.4%, Sandbox 7.9%, RPG 5.5%
Why You'll Like It: A classic top-down space trading and combat game that shares the core gameplay loop of Star Sonata 2.
- #15 Elite Dangerous
86% matchMostly Positive77% of 107,282 reviews2015
Dev: Frontier Developments
Windows
Median: 18.2 hrsMean: 148.6 hrs≥1hr: 89%
Take control of your own starship and blaze your trail in an ever-changing galaxy. Master the arts of combat, mining and trade or venture out into the unknown across a 1:1 scale universe.
Why similar: Space Sim 44.9%, Space 28.5%, Trading 14.3%, Sandbox 9.1%, RPG 3.2%
Why You'll Like It: Offers a vast, realistic galaxy to explore, trade, and fight in, providing a high-fidelity space sandbox experience.
- #16 SpaceBourne 2
85% matchMostly Positive76% of 5,149 reviews2025
Dev: Burak Dabak
Windows
Median: 2.5 hrsMean: 11.2 hrs≥1hr: 71%
Embark on a journey to greatness. Get ready for adrenaline-fueled battles and a chance to claim your place in the galaxy. Grab the controls of your ship, gear up for the fight, and unleash your ambition to conquer and build a new empire in the vastness of space.
Why similar: Space Sim 25.2%, Science 20.2%, Base Building 17%, Space 12.7%, Artificial Intelligence 9.7%
Why You'll Like It: An RPG-heavy space sim that incorporates base-building and exploration into its core gameplay loop.
- #17 Second Galaxy
86% matchMixed52% of 1,204 reviews2019
Dev: Zilong Game Limited
Windows
Median: 42 minMean: 9.4 hrs≥1hr: 38%
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: Space 70.9%, RPG 29.1%
Why You'll Like It: A space-based MMO that blends strategy and RPG elements with a focus on large-scale player-driven conflict.
- #18 Objects in Space
84% matchMixed52% of 621 reviews2019
Dev: Flat Earth GamesPub: 505 Games
Windows · Mac · Linux
Median: 2.2 hrsMean: 6.6 hrs≥1hr: 70%
Objects in Space is a retro space game centred on 2D point-and-click stealth action in a massive open world. Players have their own customisable ships and can meet people, become a trader, bounty hunter, explorer, scavenger or all of them at once.
Why similar: Space 44.5%, Space Sim 35.2%, RPG 20.3%
Why You'll Like It: A retro-styled space trading and simulation game that emphasizes realistic ship management and economic strategy.
- #19 Stellar Tactics
80% matchMostly Positive78% of 1,731 reviews2026
Dev: Don WilkinsPub: Maverick Games
Windows
Median: 3.0 hrsMean: 14.7 hrs≥1hr: 68%
A Sci-Fi role-playing game featuring turn-based ground combat, space exploration, deep character customization and a massive living universe with thousands of star systems. Equip your ships with the best equipment you can find, gather a powerful crew of mercenaries and set out into the void!
Why similar: Sandbox 45.2%, Space 35.5%, RPG 19.2%
Why You'll Like It: A deep space RPG that combines tactical combat with ship-based exploration and trading mechanics.
- #20 The Infinite Black 2
81% matchVery Positive85% of 235 reviews2023
Dev: SpellbookPub: www.Spellbook.com
Windows
Command a fleet of ships to hunt aliens, trade resources and loot treasure! Form corporations with your friends while fighting a never-ending intergalactic war in this open-world online space adventure!
Why similar: MMORPG 36.3% ★, Space Sim 29.3%, Space 18.4%, PvP 10.9%, PvE 5.1%
Why You'll Like It: A persistent space MMO that focuses on pvp, trading, and building an empire in a competitive environment.
- #21 Nova Empire
82% matchMixed53% of 297 reviews2022
Dev: Gamebear Tech
Windows
Median: 1.6 hrsMean: 11.6 hrs≥1hr: 56%
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: Space Sim 31.9%, Base Building 17%, PvP 13.1%, PvE 12.4%, Top-Down 10.5%
Why You'll Like It: A strategy-focused space game that emphasizes exploration and real-time tactical combat.
- #22 DarkOrbit Reloaded
81% matchMostly Negative31% of 472 reviews2025
Dev: Bigpoint GmbH
Windows
Dark Orbit is a free-2-play space MMO where three companies battle for galactic domination. Customize ships, trade resources, fight aliens and uncover a grand conspiracy on your epic cosmic journey. Thrilling PvP and PvE missions await! Will you lead your faction beyond the final frontier?
Why similar: MMORPG 38.5% ★, Space Sim 25.6%, RPG 10.2%, Robots 9.8%, Space 9.3%
Why You'll Like It: A long-running space MMO that features top-down combat and faction-based progression.
- #23 The Last Starship
78% matchMostly Positive75% of 1,688 reviews2026
Dev: Introversion Software
Windows · Mac
Median: 6.1 hrsMean: 12.2 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 21.2%, Science 16%, Base Building 15.8%, Space 14.5%, Sandbox 12.8%
Why You'll Like It: A sandbox simulation game where you design and manage your own starship to survive in a hostile galaxy.
- #24 Astro Lords
82% matchMixed65% of 230 reviews2015
Dev: Aratog LLCPub: Conglomerate 5
Windows · Mac · Linux
Median: 48 minMean: 6.2 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: MMORPG 30.9% ★, Space Sim 19.2%, Space 16.7%, Sandbox 13.2%, PvP 7.7%
Why You'll Like It: An MMO space strategy game that allows for base building and fleet management in a persistent universe.
- #25 Andromeda: Rebirth of Humanity
79% matchMixed65% of 117 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 41.1%, Space 17.7%, Trading 13.3%, Building 12.3%, PvP 5.6%
Why You'll Like It: A space-sim that blends colony management with economic strategy and 3D exploration.
- #26 Warspace 2
78% matchMixed61% of 87 reviews2025
Dev: Magic Game Art
Windows · Mac · Linux
Warspace 2 is a 1-4 player CO-OP space shooter with RPG elements, open-world and procedurally-generated galaxy. You can trade, craft, and fight your way through a universe, either solo or with friends.
Why similar: Space Sim 29.8%, Sandbox 20.6%, Space 20.5%, Procedural Generation 11.6%, PvE 10.5%
Why You'll Like It: A top-down shooter with sandbox elements that focuses on exploration and loot-driven progression.
- #27 Pixel Starships
77% matchMostly Positive73% of 3,000 reviews2023
Dev: SavySoda
Windows · Mac · Linux
Median: 2.2 hrsMean: 24.3 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 33.6%, Base Building 22.5%, Space 22%, Building 16.1%, RPG 5.8%
- #28 Celestial Command
79% matchMixed62% of 704 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 37.4%, Space Sim 21.4%, Sandbox 20.8%, Building 12.4%, RPG 8.1%
Why You'll Like It: A physics-based space simulation that allows for intricate ship building and strategic planning.
- #29 Entropia Universe
76% matchMixed63% of 507 reviews2025
Dev: MindArk
Windows
Entropia Universe is a unique massively multiplayer online game (MMO) where virtual assets hold real-world value and players can participate in a thriving virtual sandbox economy.
Why similar: MMORPG 33% ★, Trading 20.2%, Sandbox 13.5%, Space 13.4%, PvP 8.8%
- #30 Empyrion - Galactic Survival
75% matchMostly Positive78% of 34,392 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 Sim 24.8%, Space 18.8%, Building 15.4%, Sandbox 14%, Physics 10.1%
- #31 Subspace Discovery
76% matchMostly Positive75% of 143 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: MMORPG 34.8% ★, Space 20.9%, Base Building 12.6%, PvE 10%, Building 8.7%
- #32 Star Conflict
77% matchMostly Positive73% of 15,224 reviews2013
Dev: Star Gem Inc.Pub: Gaijin Network Ltd
Windows · Mac · Linux
Median: 2.0 hrsMean: 34.7 hrs≥1hr: 62%
Star Conflict is an action-packed, massively multiplayer space simulation game that puts players in the role of elite pilots engaging in a widespread interplanetary skirmish. The whole world for PVP and PVE!
Why similar: Trading 24.9%, Science 24.3%, Space Sim 23.6%, Sandbox 13.2%, PvE 8%
- #33 Stars Reach
74% matchMixed58% of 419 reviews2026
Dev: Playable Worlds, Inc.
Windows
Explore a living galaxy in Stars Reach. Discover new planets, build settlements, and shape environments that react to everything you do. Players work together to transform untamed worlds into thriving civilizations across a single shared universe.
Why similar: MMORPG 29.9% ★, Base Building 14.4%, Trading 12.4%, Sandbox 10.5%, Procedural Generation 8.7%
- #34 Shattered Void
75% matchMostly Positive73% of 95 reviews2024
Dev: yyy1505yyy
Windows · Linux
Space MMORPG where players can fly on different ships, collecting devices, subsystems and navigations or finding new weapons that will serve in battles. Take part in battles, explore the world, mine ore, trade, fight and build your own clan with a station.
Why similar: Trading 28%, MMORPG 26.1% ★, Space 18.5%, PvP 10.6%, Top-Down 8.6%
- #35 Stellar Odyssey
73% matchMostly Positive72% of 76 reviews2026
Dev: Stellar Games
Windows
An Idle Space MMORPG where you progress at your own pace, but the universe is built together. Explore a procedural galaxy of nearly 50 million star systems alone — or join a Squadron to pool resources, raise space stations, upgrade shared buildings, and expand across the stars as one.
Why similar: MMORPG 37.9% ★, Space 22.9%, Procedural Generation 15.8%, Sandbox 14.5%, RPG 8.9%
- #36 Space Commander: War and Trade
74% 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 30.1%, Space 16%, RPG 11.9%, Choices Matter 3.4%
- #37 Istrolid
73% 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 40.8%, Space 40%, Sandbox 19.2%
- #38 Space Engineers 2
70% matchMostly Positive75% of 5,449 reviews2025
Dev: Keen Software House
Windows
Median: 1.9 hrsMean: 11.1 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: Science 23.5%, Space Sim 18.2%, Space 17.3%, Sandbox 15.8%, Building 14.9%
- #39 Starship Theory
71% matchMixed50% of 1,130 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 49.4%, Space 37.8%, Building 12.8%
- #40 SpaceCraft
70% matchMixed65% of 2,687 reviews2026
Dev: Shiro Games
Windows
Median: 13.4 hrsMean: 47.3 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 26.6%, Space 20.5%, Base Building 19.2%, Sandbox 16.6%, PvP 9.1%
- #41 Hades' Star
72% matchMostly Positive73% of 2,682 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 75.7%, PvP 12.6%, PvE 11.7%
- #42 Star Nomad 2
73% matchMostly Positive72% of 158 reviews2015
Dev: Huy Phan
Windows · Mac
A space trader & combat sim meets squad-RPG, large scale conquest, choice driven gameplay with fluid & punchy tactical real-time combat set in a dynamic open-world sandbox.
Why similar: Space 34%, Space Sim 18.8%, Sandbox 18.8%, RPG 15.7%, Top-Down 7.4%
- #43 Star Valor
70% matchVery Positive89% of 3,421 reviews2022
Dev: Rafael Burgos
Windows
Median: 4.1 hrsMean: 29.0 hrs≥1hr: 79%
Choose your own destiny as you explore an open-world procedurally generated galaxy where anything is possible. Become a miner, a trader, a bounty hunter, a pirate, or perhaps a jack of all trades. Start off small and build your way to the top but remember with every action, comes consequences.
Why similar: Space 21.4%, Sandbox 18.1%, Space Sim 16.5%, Procedural Generation 13.4%, 2.5D 13.2%
- #44 Starminer
68% matchMostly Positive73% of 1,858 reviews2026
Dev: CoolAndGoodGames
Windows
Median: 7.2 hrsMean: 20.1 hrs≥1hr: 81%
Design and build a massive interstellar fleet in this simulation sandbox. Strip space of its minerals for profit, but stay alert: your greed attracts the alien. Master deep base-building and deploy warships to protect your empire in immersive real-time space.
Why similar: Trading 21.8%, Space Sim 21.4%, Space 13.6%, Sandbox 12.8%, Base Building 11.7%
- #45 Astrobuilder
68% matchVery Positive89% of 364 reviews2026
Dev: wastudio
Windows
An AI-driven space management RPG in a living galaxy. Explore 150+ planets and interact with 600+ NPCs whose lives and relationships evolve over time. Trade, run shops, build a Commerce Guild, join Military Factions, govern planets, and command fleets in war. Your every choice reshape the galaxy.
Why similar: Space 19.3%, Building 16.2%, Base Building 15.8%, Sandbox 13.1%, 2.5D 12.6%
- #46 Pixel Starships 2
71% matchMostly Negative28% of 389 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 38.2%, Space 31.4%, Base Building 30.3%
- #47 Rebel Galaxy
69% matchVery Positive85% of 8,380 reviews2015
Dev: Double Damage Games
Windows · Mac
Median: 1.8 hrsMean: 13.6 hrs≥1hr: 62%
Rebel Galaxy is a swashbuckling space adventure, with action-packed combat, exploration, discovery, trade, and “negotiation” with the outlandish denizens at the edge of the known universe.
Why similar: Space 44.7%, Space Sim 26.2%, Trading 12.1%, Sandbox 8.9%, RPG 8.2%
- #48 Gaia Beyond
69% matchMostly Positive75% of 265 reviews2020
Dev: Warp Turtle
Windows
Gaia Beyond is a handcrafted 2D Action-RPG, an exploration mix built around the core features fighting, mining and trading. Your decisions are footprints within a vast non-linear solar system. Forge alliances among numerous factions and develop relations with hundreds of NPCs.
Why similar: Space Sim 26.1%, Trading 24.6%, Space 16.9%, Top-Down 9.7%, Physics 9%
- #49 Starborne: Frontiers
67% matchMixed68% of 302 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 39.7%, Space 19.8%, PvP 17%, PvE 14.4%, RPG 9.2%
- #50 Starship EVO
67% matchVery Positive84% of 1,522 reviews2020
Dev: Moonfire Entertainment
Windows
Median: 1.6 hrsMean: 6.4 hrs≥1hr: 58%
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 28.6%, Building 24%, Space Sim 21.2%, Sandbox 20.4%, Physics 5.8%
- #51 Destination Sol
68% 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 60.4%, RPG 25.9%, Procedural Generation 13.7%
- #52 Executive Assault 2
65% matchVery Positive83% of 1,764 reviews2023
Dev: Hesketh Studios Ltd
Windows · Mac
Median: 3.7 hrsMean: 8.2 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 30.9%, Base Building 21.2%, Building 17.3%, Space 17.2%, Robots 13.4%
- #53 Iron Armada
66% matchMostly Positive77% of 177 reviews2024
Dev: Bluedrake42Pub: Drakeling Labs
Windows
Median: 1.4 hrsMean: 833.3 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: Space 100%
- #54 Sector Space
63% matchVery Positive93% of 139 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 46.2%, RPG 18.6%, Building 13.1%, Top-Down 11.6%, Space 10.4%