- #1 Elite Dangerous
97% matchMostly Positive77% of 107,797 reviews2015
Dev: Frontier Developments
Windows
Median: 18.3 hrsMean: 149.0 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 30.4%, Space 14.9%, Massively Multiplayer 11.9%, Open World 10.9%, Trading 8.5%
Why You'll Like It: A vast online galaxy focused on piloting ships, exploration, mining, trading, faction conflict, and building your own spacefaring career.
- #2 X4: Foundations
96% matchMostly Positive80% of 30,300 reviews2018
Dev: Egosoft
Windows · Linux
Median: 4.9 hrsMean: 95.4 hrs≥1hr: 80%
Your journey to building a vast space empire begins behind the controls of a single ship. Explore, trade, fight, and build as you rise to command fleets, stations, and entire economies in a living, fully simulated universe that reacts to every decision.
Why similar: Space Sim 21.9%, Trading 19.7%, Space 12.6%, Economy 10%, Open World 9.4%
Why You'll Like It: Its detailed simulation of trading, mining, station building, fleet command, and a living economy makes it an excellent single-player EVE-like sandbox.
- #3 Albion Online
96% matchMostly Positive78% of 94,048 reviews2018
Dev: Sandbox Interactive GmbH
Windows · Mac · Linux
Median: 3.5 hrsMean: 85.3 hrs≥1hr: 73%
Albion Online is a fantasy sandbox MMORPG featuring a player-driven economy, classless combat system, and intense PvP battles. Explore a vast open world full of danger and opportunity. Grow your wealth, forge alliances, and leave your mark on the world of Albion.
Why similar: Massively Multiplayer 29.6%, Open World 24.5%, Sandbox 13.8%, PvP 8.1%, Economy 7.9%
Why You'll Like It: Though fantasy-themed, its full-loot PvP zones, player-crafted economy, guild politics, territorial warfare, and sandbox social structure strongly echo EVE.
- #4 Avorion
94% matchVery Positive90% of 14,588 reviews2020
Dev: Boxelware
Windows · Mac · Linux
Median: 18.9 hrsMean: 99.6 hrs≥1hr: 90%
A procedural co-op space sandbox where players can build their own space ships out of dynamically scalable blocks. Fight epic space battles, explore, mine, trade, wage wars and build your own empire to save your galaxy from being torn apart by an unknown enemy.
Why similar: Space Sim 22.4%, Trading 14.6%, Space 11.1%, Economy 9.1%, Open World 9%
Why You'll Like It: Build modular ships and fleets, mine and trade across a procedurally generated galaxy, and expand from a small craft into a space empire.
- #5 Prosperous Universe
94% matchMostly Positive73% of 1,109 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: Trading 19.8%, Space Sim 17.2%, Massively Multiplayer 12.7%, Economy 11.1%, Space 9.8%
Why You'll Like It: This persistent online economic simulation is centered on player corporations, resource extraction, production chains, logistics, and market competition across space.
- #6 Foxhole
93% matchMostly Positive79% of 53,157 reviews2022
Dev: Siege Camp
Windows
Median: 10.0 hrsMean: 78.1 hrs≥1hr: 89%
Foxhole is a massively multiplayer game where thousands of players shape the outcome of a persistent online war. Every individual soldier is a player that contributes to the war effort through logistics, base building, reconnaissance, combat, and more.
Why similar: Massively Multiplayer 33.4%, Open World 18.7%, Sandbox 16.4%, PvP 12.8%, Co-op 12.3%
Why You'll Like It: It replaces spaceships with a persistent war but similarly relies on player-run industry, logistics, alliances, territorial control, and large-scale conflict.
- #7 Empyrion - Galactic Survival
92% matchMostly Positive78% of 34,438 reviews2020
Dev: Eleon Game Studios
Windows
Median: 6.2 hrsMean: 77.1 hrs≥1hr: 77%
Build and explore in a true space sandbox survival adventure. Construct mighty capital vessels, sprawling planetary settlements, and vast space stations in your galactic journey to discover the mysteries of Empyrion!
Why similar: Space Sim 23.1%, Space 13.5%, Open World 10.8%, Co-op 10.5%, Sandbox 8.5%
Why You'll Like It: This survival sandbox combines ship and base construction, resource extraction, planetary exploration, trading, and multiplayer space combat.
- #8 Mortal Online 2
91% matchMixed60% of 13,925 reviews2022
Dev: Star Vault AB
Windows
Median: 14.1 hrsMean: 151.4 hrs≥1hr: 92%
Step into Nave, a vast fantasy sandbox world with a player-driven economy, persistent housing, and deep crafting systems. Engage in first-person, full-loot PvP combat with other players and perilous foes. Build, explore, and conquer in an unforgiving world. The land is yours—who will you become?
Why similar: Massively Multiplayer 19.9%, Open World 19.8%, Sandbox 17.4%, Character Customization 15.1%, PvP 14.7%
Why You'll Like It: A harsh open-world sandbox MMO with player guilds, meaningful crafting and trading, territorial politics, and high-consequence PvP.
- #9 Space Engineers
91% matchVery Positive89% of 134,498 reviews2019
Dev: Keen Software House
Windows
Median: 9.0 hrsMean: 96.5 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 25.7%, Space 13.4%, Open World 11.1%, Sandbox 9.8%, Co-op 9.3%
Why You'll Like It: A physics-heavy space sandbox for designing ships and stations, extracting resources, automating systems, and surviving or collaborating in multiplayer worlds.
- #10 Starbase
90% matchMixed55% of 6,768 reviews2021
Dev: Frozenbyte
Windows
Median: 14.2 hrsMean: 91.5 hrs≥1hr: 91%
Starbase is a hybrid voxel/vertex-based space MMO with a fully destructible and infinitely expanding universe, with a focus on building and designing spaceships and stations, exploration, resource gathering, crafting, trading, and combat.
Why similar: Space Sim 29.2%, Massively Multiplayer 19.5%, Open World 13.4%, Space 13.2%, Sandbox 9.7%
Why You'll Like It: Its persistent multiplayer universe focuses on fully customizable ships, mining, manufacturing, faction activity, and player-made infrastructure.
- #11 Astrox Imperium
89% matchVery Positive84% of 1,264 reviews2019
Dev: Jace Masula
Windows
Median: 4.2 hrsMean: 16.1 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 27.1%, Space 23.9%, Mining 17.2% ★, Open World 10.4%, Sandbox 9.8%
Why You'll Like It: An explicitly EVE-inspired solo space sandbox with ship fitting, asteroid mining, manufacturing, missions, trading, and fleet progression.
- #12 Endless Sky
89% matchVery Positive92% of 7,114 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 27.9%, Trading 17.2%, Space Sim 16%, Open World 12.7%, Sci-fi 6.9%
Why You'll Like It: This open-source-inspired space sandbox lets you trade, mine, take missions, join factions, capture ships, and grow a personal fleet.
- #13 No Man's Sky
88% matchVery Positive85% of 421,258 reviews2016
Dev: Hello Games
Windows · Mac
Median: 20.1 hrsMean: 70.9 hrs≥1hr: 94%
No Man's Sky is a game about exploration and survival in an infinite procedurally generated universe.
Why similar: Space 24%, Open World 21.4%, Space Sim 19.5%, Sandbox 10.2%, Exploration 10%
Why You'll Like It: It offers a more relaxed but enormous shared universe built around exploration, resource gathering, trading, base construction, and spacecraft progression.
- #14 Evochron Legacy SE
87% matchVery Positive83% of 446 reviews2016
Dev: StarWraith 3D Games LLC
Windows
Median: 1.5 hrsMean: 6.7 hrs≥1hr: 62%
Advanced Space Flight, Combat, Trading, and Exploration Simulation. Set in a vast explorable universe, Evochron Legacy offers freeform gameplay with many diverse objectives and paths to choose from.
Why similar: Space Sim 28.8%, Trading 21.3%, Space 13.2%, Open World 9.8%, Sandbox 8.6%
Why You'll Like It: A demanding space sim centered on freeform exploration, ship customization, mining, trading, contracts, and emergent combat encounters.
- #15 PULSAR: Lost Colony
86% matchVery Positive90% of 5,738 reviews2021
Dev: Leafy Games
Windows · Mac · Linux
Median: 7.3 hrsMean: 16.6 hrs≥1hr: 87%
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 29.5%, Space 13.7%, Open World 12.2%, Co-op 10.3%, PvE 7.9%
Why You'll Like It: A cooperative starship game that captures the teamwork of operating, upgrading, exploring, and fighting from a crewed vessel.
- #16 X3: Terran Conflict
86% matchVery Positive86% of 2,875 reviews2008
Dev: Egosoft
Windows · Mac · Linux
Median: 1.1 hrsMean: 31.9 hrs≥1hr: 51%
It is the year 2938. The long wished-for encounter of the X Universe and the Earth holds both joy and sorrow for the people. Despite flourishing trade, the clash of the diverse races, cultures and life forms creates new tensions, mistrust and open conflict that need to be overcome!
Why similar: Space 23.6%, Space Sim 19.8%, Trading 16.8%, Sandbox 8.8%, Open World 7.6%
Why You'll Like It: A classic deep space sandbox with dynamic trading, factory chains, faction reputation, ship ownership, and large-scale fleet management.
- #17 SpaceBourne 2
82% matchMostly Positive76% of 5,166 reviews2025
Dev: Burak Dabak
Windows
Median: 2.6 hrsMean: 11.1 hrs≥1hr: 72%
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 30.7%, Mining 13.8% ★, Space 12%, Lore-Rich 11.9%, Open World 11.5%
Why You'll Like It: A large open-universe space RPG with mining, trading, ship upgrades, faction standing, exploration, and opportunities to found your own faction.
- #18 Star Conflict
85% matchMostly Positive73% of 15,239 reviews2013
Dev: Star Gem Inc.Pub: Gaijin Network Ltd
Windows · Mac · Linux
Median: 2.0 hrsMean: 34.6 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: Space Sim 24.1%, Trading 22.3%, Massively Multiplayer 15.3%, Open World 10.2%, Sandbox 8.7%
Why You'll Like It: A free-to-play space MMO focused more on action, but still offering ship fitting, open-space activity, factions, trading, and PvP progression.
- #19 Entropia Universe
83% matchMixed62% of 534 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: Trading 23.5%, Space 13.7%, Open World 12.2%, Sandbox 11.6%, PvP 9.6%
Why You'll Like It: A long-running virtual-world MMO with a real player economy, crafting, hunting, mining, trading, and a market-driven progression structure.
- #20 Helium Rain
84% matchMostly Positive79% of 340 reviews2018
Dev: Deimos Games
Windows · Linux
Median: 3.3 hrsMean: 9.4 hrs≥1hr: 74%
Trade your wares and eliminate the competition in a cutthroat world. Buy new ships and stations to mine and haul resources. Explore the vast emptiness of space.
Why similar: Space Sim 39.2%, Space 19.5%, Trading 14.3%, Simulation 7.6%, Economy 6.1%
Why You'll Like It: It concentrates on the economic side of space empire building, with production networks, trade routes, colonization, fleets, and market management.
- #21 Interstellar Rift
84% matchMixed68% of 1,667 reviews2020
Dev: Split PolygonPub: Iceberg Interactive
Windows
Median: 4.3 hrsMean: 35.6 hrs≥1hr: 83%
Interstellar Rift is an open world starship simulator with an emphasis on ship construction and multi-player interaction. Survive in a hostile galaxy with your own custom designed and constructed starship. Invite other players to join your crew or fight them across the galaxy!
Why similar: Space Sim 21.9%, Trading 17.2%, Mining 15.5% ★, Open World 9%, Space 9%
Why You'll Like It: Build and operate customizable starships with friends while exploring, crafting, trading, surviving, and fighting across procedurally generated space.
- #22 Cosmoteer: Starship Architect & Commander
81% matchVery Positive94% of 12,916 reviews2022
Dev: Walternate Realities
Windows
Median: 19.3 hrsMean: 41.3 hrs≥1hr: 92%
Design and simulate the starships of your dreams! Command your ship or fleet in epic battles and manage your crew while exploring a dangerous galaxy. Play alone or with friends, test your ships in online PvP, and let your imagination reach for the stars!
Why similar: Space Sim 31.9%, Space 18.5%, Difficult 15.3%, Sci-fi 13.1%, Exploration 7.1%
Why You'll Like It: Design functional ships room by room, manage crews and cargo, trade across star systems, and fight tactical fleet engagements.
- #23 ΔV: Rings of Saturn
81% matchVery Positive92% of 3,475 reviews2023
Dev: Kodera Software
Windows · Mac · Linux
Median: 8.3 hrsMean: 11.8 hrs≥1hr: 85%
A physics-based mining sim, set in the thickest debris field in Sol. Every action has a reaction, lasers are invisible without a medium, and your thrust is a potent weapon. Find trade, adapt your equipment to your playstyle, hire a crew to help. Unravel the mysteries of the rings, or just get rich.
Why similar: Space Sim 28.5%, Space 18.6%, Difficult 12.8%, Open World 11.2%, Sci-fi 9%
Why You'll Like It: Its meticulous asteroid mining, salvage operations, ship upgrades, and hard-science economic loop suit players who enjoy EVE’s industrial careers.
- #24 Infinity: Battlescape
82% matchMostly Positive80% of 765 reviews2019
Dev: I-Novae Studios, LLC
Windows
Median: 3.0 hrsMean: 9.8 hrs≥1hr: 71%
Infinity: Battlescape is a multiplayer space combat sim supporting hundreds of players on a single server. Join one of the corporate factions and fight for domination of a seamless, true-to-scale procedural star system. Participate in massive space and planetary battles involving hundreds of ships.
Why similar: Space Sim 30.2%, Massively Multiplayer 26.9%, Space 21.8%, Simulation 8.5%, Sci-fi 6.5%
Why You'll Like It: It delivers large-scale multiplayer space combat across seamless planetary systems, with capital ships, atmospheric flight, and coordinated fleet action.
- #25 Black Desert
80% matchMostly Positive73% of 94,492 reviews2017
Dev: Pearl Abyss
Windows
Median: 4.0 hrsMean: 187.7 hrs≥1hr: 75%
Played by over 20 million Adventurers - Black Desert Online is an open-world, action MMORPG. Experience intense, action-packed combat, battle massive world bosses, fight alongside friends to siege and conquer castles, and train in professions such as fishing, trading, crafting, cooking, and more!
Why similar: Sandbox 32.4%, PvP 25.3%, Exploration 19%, Open World 10.7%, Character Customization 8.7%
Why You'll Like It: Its player-run marketplace, life-skill economy, guild alliances, territorial wars, and sandbox character progression appeal to EVE’s social and economic players.
- #26 Old School RuneScape
79% matchVery Positive83% of 20,860 reviews2021
Dev: Jagex Ltd
Windows · Mac
Median: 1.7 hrsMean: 98.3 hrs≥1hr: 59%
The best retro fantasy MMORPG on the planet. Old School is RuneScape but… older! This is the open world you know and love, but as it was in 2007. Saying that, it’s even better than that – Old School is shaped by you, its players, with regular new content, fixes and expansions voted for by the fans!
Why similar: Massively Multiplayer 25.8%, Open World 13.2%, Character Customization 12.9%, Lore-Rich 10.7%, Third Person 9%
Why You'll Like It: A long-lived MMO driven by a major player economy, open-ended professions, risky PvP areas, social groups, and self-directed progression.
- #27 Starpoint Gemini Warlords
79% matchMostly Positive73% of 3,598 reviews2017
Dev: Little Green Men Games
Windows
Median: 4.1 hrsMean: 10.8 hrs≥1hr: 87%
Strategy from the front lines! Starpoint Gemini Warlords combines 3rd person capital spaceship combat with 4X strategy and RPG gameplay elements. Build mighty war fleets and send them into battle or lead them into combat yourself. Become the Warlord and conquer the Gemini system!
Why similar: Space Sim 30.3%, Space 19.6%, Open World 14.3%, Sandbox 10%, Sci-fi 8.2%
Why You'll Like It: This space sandbox mixes direct ship combat with trading, mining, research, territory capture, station development, and fleet command.
- #28 STAR WARS™: The Old Republic™
77% matchVery Positive90% of 75,527 reviews2020
Dev: BroadswordPub: Electronic Arts
Windows
Median: 5.5 hrsMean: 70.1 hrs≥1hr: 78%
STAR WARS™: The Old Republic™ is a free-to-play MMORPG that puts you at the center of your own story-driven saga. Play as a Jedi, Sith, Bounty Hunter, or one of many other iconic STAR WARS roles in the galaxy far, far away over three thousand years before the classic films.
Why similar: Open World 21.1%, Massively Multiplayer 21.1%, Character Customization 18.2%, Space 14.1%, Sci-fi 8.7%
- #29 Star Trek Online
78% matchMostly Positive79% of 21,376 reviews2012
Dev: Cryptic StudiosPub: Arc Games
Windows
Median: 6.8 hrsMean: 135.2 hrs≥1hr: 84%
In Star Trek Online, the Star Trek universe appears for the first time on a truly massive scale. Players take the captain's chair as they command their own starship and crew. Explore strange new worlds, seek out new life and new civilizations, and boldly go where no one has gone before.
Why similar: Massively Multiplayer 28.6%, Space 22.2%, Sci-fi 12.3%, Open World 11.4%, Character Customization 7.3%
- #30 SpaceCraft
75% matchMixed64% of 2,773 reviews2026
Dev: Shiro Games
Windows
Median: 14.0 hrsMean: 54.1 hrs≥1hr: 91%
The Universe is yours. SpaceCraft is an online space exploration and building game. Explore a vast galaxy of solar systems and planets, mine and craft resources, design and build ships, automate planetary bases and interplanetary logistics, trade and cooperate.
Why similar: Space Sim 20.4%, Massively Multiplayer 14.6%, Space 12.1%, Open World 9.8%, Sandbox 8.3%
- #31 SPACERIFT: Arcanum System
77% matchMostly Positive77% of 505 reviews2020
Dev: Arcanum Team
Windows
Median: 54 minMean: 9.9 hrs≥1hr: 43%
Space. Ships. Resources. Trading. Production. Combat. Mine ore, haul cargo, and find profitable trade routes. Buy and capture ships, build your fleet, construct stations, and develop your production. Start with your first ship. Build your empire!
Why similar: Space Sim 33.5%, Space 15.1%, Open World 15%, Economy 14.7%, Sci-fi 8.9%
- #32 EVERSPACE™ 2
74% matchVery Positive86% of 13,135 reviews2023
Dev: ROCKFISH Games
Windows · Mac
Median: 7.5 hrsMean: 29.8 hrs≥1hr: 87%
EVERSPACE 2 is a fast-paced single-player spaceship shooter with exploration in space and on planets, tons of loot, RPG elements, mining, and crafting. Experience an exciting sci-fi story set in a vivid, handcrafted open world full of secrets, puzzles, and perils.
Why similar: Space 26.2%, Open World 19.8%, PvE 12.2%, Exploration 10.5%, Third Person 9.8%
- #33 PlanetSide 2
76% matchVery Positive80% of 74,900 reviews2012
Dev: Rogue Planet GamesPub: Daybreak Game Company
Windows
Median: 3.6 hrsMean: 54.0 hrs≥1hr: 77%
PlanetSide 2 is an all-out planetary war, where thousands of players battle as one across enormous continents. Utilize infantry, ground and air vehicles, and teamwork to destroy your enemies in this revolutionary first-person shooter on a massive scale.
Why similar: Massively Multiplayer 46.2%, Open World 19.2%, Sci-fi 8.4%, PvP 7.5%, Space 7.4%
- #34 Rebel Galaxy
75% matchVery Positive85% of 8,397 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 29.5%, Space Sim 22.4%, Open World 14%, Trading 9%, Sci-fi 8.7%
- #35 Starminer
71% matchMostly Positive73% of 1,894 reviews2026
Dev: CoolAndGoodGames
Windows
Median: 7.0 hrsMean: 26.4 hrs≥1hr: 82%
Design and build a massive interstellar fleet in this simulation sandbox. Strip space of its minerals for profit, but stay alert: your greed attracts the alien. Master deep base-building and deploy warships to protect your empire in immersive real-time space.
Why similar: Space Sim 20.3%, Trading 18.1%, Mining 12.9% ★, Space 9.9%, Economy 9.4%
- #36 X3: Reunion
76% matchMostly Positive72% of 743 reviews2006
Dev: Egosoft
Windows · Mac · Linux
Median: 36 minMean: 8.8 hrs≥1hr: 41%
X3: Reunion continues the epic space saga, blending deep space trading and intense real-time combat. Explore a vast universe, establish your empire, and shape the new frontier. With enhanced graphics and intricate economies, it's a journey of strategy, simulation, and interstellar intrigue.
Why similar: Space Sim 24.9%, Space 21.1%, Trading 11.2%, Economy 10%, Sandbox 8.3%
- #37 RuneScape ®
73% matchVery Positive82% of 27,303 reviews2020
Dev: Jagex Ltd
Windows · Mac
Median: 1.2 hrsMean: 102.5 hrs≥1hr: 53%
RuneScape is a high fantasy open world MMORPG. Explore an ever changing and evolving living world where new challenges, skills, and quests await. Featuring unprecedented player freedom, you choose how to play, adventure, and grow.
Why similar: Massively Multiplayer 32%, Open World 23.5%, Character Customization 11.9%, Lore-Rich 11.2%, PvE 7.7%
- #38 Destiny 2
72% matchMostly Positive78% of 662,710 reviews2019
Dev: Bungie
Windows
Median: 10.1 hrsMean: 333.0 hrs≥1hr: 86%
Explore the mysteries of Sol and experience exhilirating first-person shooter combat in Destiny 2. Unlock powerful abilities and collect unique gear across story missions, co-op, and PvP modes.
Why similar: Massively Multiplayer 17.9%, Open World 14.9%, Space 13.1%, Lore-Rich 12.9%, Co-op 11.8%
- #39 StarMade
74% matchMixed68% of 2,992 reviews2014
Dev: Schine GmbH
Windows · Mac · Linux
Median: 1.3 hrsMean: 18.8 hrs≥1hr: 54%
The ultimate space sandbox. Participate in epic fleet battles, form alliances, strive to dominate entire galaxies and harness the universe’s resources for your industrious empire or the destruction of others. Customise your experience, the universe is yours!
Why similar: Space 25.4%, Sandbox 16.3%, Open World 15%, Space Sim 13.4%, Sci-fi 7%
- #40 The Infinite Black 2
72% matchVery Positive85% of 238 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: Space Sim 28.1%, Space 13.6%, Massively Multiplayer 13.5%, Open World 11.6%, PvP 8.6%
- #41 Guild Wars 2®
69% matchVery Positive88% of 29,804 reviews2022
Dev: ArenaNet®
Windows
Median: 4.2 hrsMean: 71.6 hrs≥1hr: 80%
Guild Wars 2 is an award-winning online roleplaying game with fast-paced action combat, deep character customization, and no subscription fee required. Choose from an arsenal of professions and weapons, explore a vast open world, compete in PVP modes and more. Join over 16 million players now!
Why similar: Massively Multiplayer 30.1%, Character Customization 23.2%, PvP 14.3%, Third Person 12.9%, Adventure 8.1%
- #42 World of Sea Battle
68% matchMostly Positive75% of 8,956 reviews2025
Dev: Thera Interactive
Windows
Median: 1.6 hrsMean: 26.1 hrs≥1hr: 57%
Set sail in World of Sea Battle, an action-packed open-world MMO in the Golden Age of Sail! Command historic ships, battle in PvP & PvE, shape the economy, and engage in territorial guild wars in your quest for glory across the high seas!
Why similar: Trading 23.3%, Massively Multiplayer 20.5%, Open World 13.4%, Sandbox 10.9%, PvP 9.3%
- #43 Stars End
70% matchMixed61% of 1,432 reviews2023
Dev: Reverie World StudiosPub: indie.io
Windows
Median: 2.5 hrsMean: 10.2 hrs≥1hr: 81%
Stars End is a sci-fi survival sandbox set on the wild frontier of a distant star system. Play solo or host your own server as you craft, build, and battle to survive in a galaxy shaped by danger, discovery, and your own grit.
Why similar: Space Sim 17.3%, Massively Multiplayer 17.2%, Space 11.3%, Co-op 10.1%, Open World 8.3%
- #44 Hades' Star
71% matchMostly Positive73% of 2,686 reviews2019
Dev: Parallel Space Inc
Windows · Mac
Median: 1.6 hrsMean: 54.9 hrs≥1hr: 56%
A unique space strategy game where thousands of players participate in one shared galaxy.
Why similar: Space 35%, Massively Multiplayer 29.9%, Strategy 8.7%, Sci-fi 8.4%, PvP 6.2%
- #45 X Rebirth
73% matchMixed44% of 7,317 reviews2013
Dev: Egosoft
Windows · Mac · Linux
Median: 3.3 hrsMean: 19.0 hrs≥1hr: 88%
In the distant future, the X universe faces a period of profound and irrevocable change. While the universe stumbles towards an uncertain future, countless adventures await as new enemies rise in search of power.
Why similar: Space 28.4%, Space Sim 22.1%, Simulation 11%, Sci-fi 9.7%, Sandbox 7.8%
- #46 Evochron Mercenary
71% matchMostly Positive77% of 436 reviews2012
Dev: StarWraith 3D Games LLC
Windows
Median: 2.7 hrsMean: 6.8 hrs≥1hr: 73%
The life of an independent mercenary is rarely without excitement. Your spacecraft awaits and your adventure begins in the Sapphire star system.
Why similar: Space Sim 26.6%, Space 25%, Open World 10.6%, Trading 9.9%, Simulation 9.4%
- #47 Andromeda: Rebirth of Humanity
70% matchMixed65% of 118 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 30%, Massively Multiplayer 12.9%, Mining 11.6% ★, Space 9.9%, Trading 8.5%
- #48 DarkOrbit Reloaded
68% matchMostly Negative32% of 505 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: Space Sim 48.1%, Massively Multiplayer 15.8%, Space 13.5%, Adventure 9.2%, Third Person 8%
- #49 Shattered Void
67% matchMostly Positive72% 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 29.5%, Massively Multiplayer 22.9%, Space 17.1%, PvP 10.5%, PvE 8.2%
- #50 Naev
69% matchVery Positive81% of 231 reviews2017
Dev: Naev Team
Windows · Mac · Linux
Median: 2.1 hrsMean: 15.1 hrs≥1hr: 60%
Naev is a game about space exploration, trade, and combat in a large and vibrant universe. Players travel the galaxy and earn money by trading, fighting, and performing missions.
Why similar: Space Sim 28.3%, Trading 27.7%, Space 15.2%, Open World 10.3%, Exploration 6.6%
- #51 Stellar Wanderer DX
65% matchMostly Positive73% of 64 reviews2026
Dev: Dream Builder StudiosPub: Leoful
Windows
Fight, trade, mine, and explore the galaxy in this old-school space combat simulator. You are a freelance pilot who survived an assassination attempt. Travel the open world, chase bounties, get new ships, upgrade your gear, and, why not, maybe even save humankind!
Why similar: Space Sim 22.5%, Trading 21.1%, Mining 17.2% ★, Space 10.7%, Open World 8.1%
- #52 Subspace Discovery
67% matchMostly Positive74% of 145 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 24.8%, Space 21.4%, Mining 16.2% ★, PvE 11.1%, Sci-fi 9%
- #53 MechWarrior Online™ Legends
67% matchVery Positive80% of 12,839 reviews2015
Dev: Piranha Games Inc.
Windows
Median: 1.6 hrsMean: 56.9 hrs≥1hr: 60%
MechWarrior Online™ Legends is a tactical, 'Mech-based online shooter set in the vast BattleTech Universe. Assume the role of an elite MechWarrior, piloting powerful BattleMechs, fighting for supremacy over the Inner Sphere.
Why similar: Massively Multiplayer 36.9%, Sci-fi 21.2%, PvP 18.5%, Simulation 14.7%, Strategy 8.7%
- #54 Sins of a Solar Empire II
64% matchVery Positive84% of 8,792 reviews2024
Dev: Ironclad Games CorporationPub: Stardock Entertainment
Windows
Median: 9.5 hrsMean: 32.8 hrs≥1hr: 85%
Battle for galactic dominance in this real-time 4X strategy game with unrivaled scale! You’ll explore, expand, exploit, and exterminate through military force, diplomacy, trade, culture, influence, and other underhanded tactics.
Why similar: Space 38.7%, Co-op 14.5%, Sci-fi 12.8%, PvE 11.5%, PvP 11.3%
- #55 VoidExpanse
68% 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 34.8%, Open World 19.3%, Sandbox 14.2%, Sci-fi 11%, Character Customization 8.6%
- #56 Starship EVO
66% matchVery Positive83% of 1,546 reviews2020
Dev: Moonfire Entertainment
Windows
Median: 1.6 hrsMean: 6.4 hrs≥1hr: 59%
Mine and craft your way to orbit, build your own starship and explore a vast, dangerous galaxy alongside your crew. For players who love a meaningful survival progression, a unique and elegant building system, and epic space-opera scale.
Why similar: Space 25.7%, Space Sim 24.7%, Sandbox 15.4%, Open World 10.6%, Simulation 10.4%