- #1 EVE Online
97% matchMostly Positive74% of 38,402 reviews2010
Dev: CCP
Windows · Mac
Median: 3.0 hrsMean: 136.7 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: Trading 29.2% ★, Space Sim 26.1% ★, Space 16.9%, Sandbox 12.3%, 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 14,288 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: Space Sim 25.8% ★, Trading 20% ★, Space 16.4%, Sandbox 15.2%, Building 14.1%
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 7,116 reviews2013
Dev: SNK GamesPub: Fulqrum Publishing
Windows
Median: 4.0 hrsMean: 27.5 hrs≥1hr: 89%
Space adventure, open world RPG, strategy, arcade, quest and more!
Why similar: Space 62.8%, RPG 18.9%, Sandbox 12.1%, 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 Positive95% of 12,431 reviews2022
Dev: Walternate Realities
Windows
Median: 19.3 hrsMean: 40.4 hrs≥1hr: 92%
Design and simulate the starships of your dreams! Command your ship or fleet in epic battles and manage your crew while exploring a dangerous galaxy. Play alone or with friends, test your ships in online PvP, and let your imagination reach for the stars!
Why similar: 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 Positive74% of 1,030 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 23.2% ★, Trading 19.7% ★, Space Sim 14.6% ★, Base Building 13.2%, Space 10.7%
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 4,066 reviews2015
Dev: Anisoptera GamesPub: Indie Voyage
Windows · Mac · Linux
Median: 5.1 hrsMean: 26.1 hrs≥1hr: 84%
A spaceship building and universe-exploration game. Collect resources, expand and grow your fleet, and conquer your personal galaxy. Stellar ambience by Peaks.
Why similar: Space 32.4%, Building 29.1%, Sandbox 25.8%, Top-Down 7.8%, 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 2,981 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 35.7%, Sandbox 27.4%, Building 18.3%, Space Sim 14.4% ★, RPG 4.1%
Why You'll Like It: A voxel-based space sandbox that allows for massive ship and base construction in a persistent multiplayer environment.
- #8 X4: Foundations
91% 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: Trading 30.3% ★, Space Sim 27.6% ★, Space 17%, Sandbox 15.9%, Building 9.2%
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.
- #9 VoidExpanse
92% matchMostly Positive71% of 760 reviews2015
Dev: AtomicTorch Studio
Windows · Mac · Linux
Median: 3.8 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 47.6%, Sandbox 23.3%, Top-Down 14.9%, RPG 14.2%
Why You'll Like It: A top-down space sandbox that focuses on RPG progression, trading, and faction-based combat in an open universe.
- #10 Interstellar Rift
91% 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 25.9% ★, Trading 24.1% ★, Building 13.9%, Space 13.8%, Sandbox 13.6%
Why You'll Like It: A multiplayer space-sim that focuses on ship construction and resource management within a persistent universe.
- #11 Starbase
90% 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 32.2% ★, Building 19.1%, Space 18.8%, Sandbox 16.7%, Robots 13.2%
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 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 29.2% ★, Trading 25.8% ★, Space 16.7%, Sandbox 16.3%, Building 12%
Why You'll Like It: Combines top-down combat with sandbox strategy elements, allowing players to build their own space-faring organization.
- #13 Space Engineers
88% 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 20.9% ★, Base Building 15.5%, Space 14.1%, Sandbox 12.5%, Building 11.9%
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.
- #14 Endless Sky
89% 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 41.3%, Trading 23.4% ★, Space Sim 18.2% ★, 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 SpaceBourne 2
86% matchMostly Positive77% of 4,992 reviews2025
Dev: Burak Dabak
Windows
Median: 2.4 hrsMean: 10.9 hrs≥1hr: 70%
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 17.1%, Space 12.7%, Artificial Intelligence 9.8%
Why You'll Like It: An RPG-heavy space sim that incorporates base-building and exploration into its core gameplay loop.
- #16 Second Galaxy
86% matchMixed52% of 1,200 reviews2019
Dev: Zilong Game Limited
Windows
Median: 36 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 71%, RPG 29%
Why You'll Like It: A space-based MMO that blends strategy and RPG elements with a focus on large-scale player-driven conflict.
- #17 Elite Dangerous
85% matchMostly Positive77% of 105,113 reviews2015
Dev: Frontier Developments
Windows
Median: 18.4 hrsMean: 146.5 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 44.6% ★, Space 28.3%, Trading 14.8% ★, Sandbox 9.2%, RPG 3.1%
Why You'll Like It: Offers a vast, realistic galaxy to explore, trade, and fight in, providing a high-fidelity space sandbox experience.
- #18 VEGA Conflict
84% matchMixed58% of 4,985 reviews2015
Dev: KIXEYE
Windows · Mac
Median: 2.7 hrsMean: 90.8 hrs≥1hr: 63%
Stake your claim, command your fleets, and wage epic war in space.
Why similar: Space 34.1%, Base Building 24.3%, Sandbox 18.5%, PvP 11.7%, PvE 11.4%
Why You'll Like It: A real-time strategy space game that focuses on fleet building and persistent territory control.
- #19 The Infinite Black 2
82% matchVery Positive84% of 231 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 36.2% ★, Space Sim 29.2% ★, Space 18.3%, PvP 11%, PvE 5.3%
Why You'll Like It: A persistent space MMO that focuses on pvp, trading, and building an empire in a competitive environment.
- #20 Objects in Space
84% matchMixed52% of 612 reviews2019
Dev: Flat Earth GamesPub: 505 Games
Windows · Mac · Linux
Median: 2.2 hrsMean: 6.6 hrs≥1hr: 71%
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 44.3%, Space Sim 34.4% ★, RPG 21.3%
Why You'll Like It: A retro-styled space trading and simulation game that emphasizes realistic ship management and economic strategy.
- #21 Stellar Tactics
80% matchVery Positive80% of 1,560 reviews2026
Dev: Don WilkinsPub: Maverick Games
Windows
Median: 3.0 hrsMean: 14.6 hrs≥1hr: 65%
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 46.3%, Space 34.3%, RPG 19.4%
Why You'll Like It: A deep space RPG that combines tactical combat with ship-based exploration and trading mechanics.
- #22 Astro Lords
82% matchMixed65% of 227 reviews2015
Dev: Aratog LLCPub: Conglomerate 5
Windows · Mac · Linux
Median: 48 minMean: 5.8 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 30.8% ★, Space Sim 19.1% ★, Space 16.6%, Sandbox 13.2%, PvP 7.8%
Why You'll Like It: An MMO space strategy game that allows for base building and fleet management in a persistent universe.
- #23 DarkOrbit Reloaded
81% matchMostly Negative28% of 346 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 38.7% ★, Space Sim 25.3% ★, RPG 10.2%, Robots 9.8%, Space 9.4%
Why You'll Like It: A long-running space MMO that features top-down combat and faction-based progression.
- #24 The Last Starship
78% 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 21.2% ★, Science 15.9% ★, Base Building 15.7%, Space 14.4%, 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.
- #25 Nova Empire
81% matchMixed53% of 283 reviews2022
Dev: Gamebear Tech
Windows
Median: 1.9 hrsMean: 12.5 hrs≥1hr: 57%
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 31.6% ★, Base Building 16.9%, PvP 13%, PvE 12.7%, Top-Down 10.6%
Why You'll Like It: A strategy-focused space game that emphasizes exploration and real-time tactical combat.
- #26 Warspace 2
78% matchMixed61% of 82 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 29.6% ★, Sandbox 20.6%, Space 20.4%, Procedural Generation 11.7%, PvE 10.9%
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 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 33.6% ★, Base Building 22.7%, Space 21.9%, Building 16.1%, RPG 5.8%
- #28 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 for Android and PC. Get dropped into 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.
Why similar: Space Sim 40.8% ★, Space 17.5%, Trading 13.7% ★, Building 12.2%, PvE 5.8%
Why You'll Like It: A space-sim that blends colony management with economic strategy and 3D exploration.
- #29 Celestial Command
79% 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 36.9%, Space Sim 21.5% ★, Sandbox 21.1%, 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.
- #30 Empyrion - Galactic Survival
76% 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 24.6% ★, Space 18.6%, Building 15.3%, Sandbox 14.1%, Physics 10.3%
- #31 Subspace Discovery
76% matchMostly Positive75% of 131 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 34.6% ★, Space 20.8%, Base Building 12.6%, PvE 10.3%, Building 8.7%
- #32 Star Conflict
77% matchMostly Positive73% of 15,084 reviews2013
Dev: Star Gem Inc.Pub: Gaijin Network Ltd
Windows · Mac · Linux
Median: 2.0 hrsMean: 34.3 hrs≥1hr: 63%
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 25.6% ★, Science 24% ★, Space Sim 23.2% ★, Sandbox 13.1%, PvE 8.2%
- #33 Space Engineers 2
74% 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: Science 23.7% ★, Space Sim 18.4% ★, Space 16.8%, Sandbox 15.8%, Building 14.6%
- #34 Entropia Universe
75% matchMixed62% of 403 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 32.7% ★, Trading 20.7% ★, Sandbox 13.5%, Space 13.2%, PvP 8.7%
- #35 Shattered Void
75% matchMostly Positive71% of 90 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 28.6% ★, MMORPG 25.7% ★, Space 18.2%, PvP 10.6%, Top-Down 8.7%
- #36 Space Commander: War and Trade
74% matchMixed67% of 688 reviews2020
Dev: Home Net Games
Windows · Mac · Linux
Median: 1.2 hrsMean: 9.2 hrs≥1hr: 57%
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 38.3% ★, Base Building 30.5%, Space 15.8%, RPG 11.9%, Choices Matter 3.5%
- #37 Istrolid
73% 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 40.8%, Space 39.9%, Sandbox 19.4%
- #38 Star Valor
71% matchVery Positive89% of 3,325 reviews2022
Dev: Rafael Burgos
Windows
Median: 4.1 hrsMean: 28.8 hrs≥1hr: 78%
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 31%, Sandbox 23%, Procedural Generation 14.6%, 2.5D 11.8%, Top-Down 10.1%
- #39 Space Aces
70% matchMixed63% of 350 reviews2026
Dev: DewEnforcerPub: Space Aces
Windows
Space Aces is an indie space shooter that plunges you into an online universe full of action, strategy, and fierce competition. Step into the cockpit and evolve from a rookie pilot into the most feared Ace in the galaxy!
Why similar: MMORPG 51.3% ★, Space 20.7%, PvE 9.7%, 2.5D 9.6%, PvP 8.6%
- #40 Hades' Star
72% matchMostly Positive73% of 2,643 reviews2019
Dev: Parallel Space Inc
Windows · Mac
Median: 1.6 hrsMean: 55.7 hrs≥1hr: 55%
A unique space strategy game where thousands of players participate in one shared galaxy.
Why similar: Space 75%, PvP 12.8%, PvE 12.2%
- #41 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 33.8%, Sandbox 18.9%, Space Sim 18.7% ★, RPG 15.6%, Top-Down 7.5%
- #42 Pixel Starships 2
71% matchMostly Negative25% of 352 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 31.3%, Base Building 30.5%
- #43 Executive Assault 2
69% 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 30.8% ★, Base Building 21.2%, Building 17.4%, Space 17.2%, Robots 13.3%
- #44 Rebel Galaxy
70% matchVery Positive85% of 8,230 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 44.5%, Space Sim 25.9% ★, Trading 12.5% ★, Sandbox 8.9%, RPG 8.1%
- #45 Destination Sol
71% 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 60.3%, RPG 25.7%, Procedural Generation 14%
- #46 Starborne: Frontiers
69% matchMixed68% of 285 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 39.5% ★, Space 19.4%, PvP 17.1%, PvE 14.9%, RPG 9.1%
- #47 Gaia Beyond
70% matchMostly Positive76% of 258 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 25.7% ★, Trading 25.2% ★, Space 16.6%, Top-Down 9.8%, Physics 9.1%
- #48 Iron Armada
67% matchMostly Positive77% of 177 reviews2024
Dev: Bluedrake42Pub: Drakeling Labs
Windows
Median: 1.8 hrsMean: 816.3 hrs≥1hr: 54%
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%
- #49 Exocraft
69% 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: MMORPG 30.4% ★, Space Sim 21.7% ★, Space 15.2%, Building 14.9%, Base Building 11.2%
- #50 Sins of a Solar Empire II
64% 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 46.4%, Base Building 20.1%, PvE 13.5%, PvP 13.2%, Choices Matter 6.9%
- #51 Starfighter: Infinity
67% matchVery Positive91% of 129 reviews2019
Dev: Ben Olding Games
Windows · Mac · Linux
A space based MMORPG with a focus on ‘dogfighting’ style action and exploration. Features a huge array of ships, imaginative weapons and ship upgrades with more being added all the time. Explore the galaxy, fight other players, form your own organisations, mine asteroids to craft new items, loot rare weapons from alien races, and more...
Why similar: Space 51.4%, RPG 48.6%
- #52 Sector Space
64% matchVery Positive96% of 53 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 46.1% ★, RPG 19.2%, Building 13.7%, Top-Down 11.5%, Space 9.5%
- #53 Starship EVO
66% 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 28.1%, Building 23.2%, Space Sim 21.6% ★, Sandbox 20.7%, Physics 6.5%
- #54 Ascent - The Space Game
68% matchMixed68% of 340 reviews2016
Dev: Fluffy Kitten Studios
Windows
Median: 12 minMean: 18.1 hrs≥1hr: 38%
Ascent is a PVE sandbox space MMO with 270 BILLION star systems and an emphasis on strong Sci Fi. It encourages Exploration, Colonization, Research, Asteroid mining, Farming, Trading, and Combat. Outside the tutorial sector, everything in-game has been built by players.
Why similar: Space 65.1%, Science 34.9% ★
- #55 8BitMMO
68% matchMixed60% of 4,325 reviews2015
Dev: Archive Entertainment
Windows · Mac · Linux
Median: 30 minMean: 23.4 hrs≥1hr: 33%
8BitMMO is a retro-style 2D massively multiplayer game! It's a giant construction sandbox -- you can build a home or a castle in a persistent streaming world. Found and manage your own city. Fight evil LawyerCats and engage in Player vs Player battle.
Why similar: MMORPG 38.5% ★, Sandbox 22.2%, Building 21.4%, PvP 10.2%, RPG 7.7%
- #56 Perpetuum
68% matchMostly Positive72% of 805 reviews2014
Dev: Avatar CreationsPub: Gamestorm Ltd
Windows
Median: 3.1 hrsMean: 21.6 hrs≥1hr: 81%
Perpetuum is a persistent, sandbox, single server, massively multiplayer sci-fi rpg (MMORPG). Control huge robots and mechs to gain access to an alien planet's resources and knowledge, amass huge wealth, or even claim part of the world for yourself using terraforming and complex infrastructure.
Why similar: MMORPG 31.6% ★, Robots 27.5%, Sandbox 20.8%, RPG 11.5%, PvP 8.7%