Games Like Second Galaxy

A unique space strategy game where thousands of players participate in one shared galaxy.

Why similar: Massively Multiplayer 43.7%, Space 37.8%, Strategy 11.6%, Sci-fi 7%

Why You'll Like It: Provides a strategic space management experience with a strong emphasis on long-term planning and cooperative alliance gameplay.

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: Massively Multiplayer 38.8%, Space 27.6%, Open World 16.6%, Sci-fi 8.7%, Strategy 8.4%

Why You'll Like It: This is the definitive space MMO that mirrors the deep political, economic, and alliance-based warfare found in Second Galaxy.

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: Massively Multiplayer 35.3%, Space 32.3%, Open World 16.9%, Sci-fi 9.1%, RPG 4%

Why You'll Like It: Offers a vast, high-fidelity open-world galaxy with a focus on exploration, trading, and ship-based combat.

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 44.1%, Space 25.1%, Sci-fi 10.5%, Open World 9.2%, RPG 8.9%

Why You'll Like It: A deep sci-fi MMORPG that allows players to command their own starships and participate in large-scale fleet operations.

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: Massively Multiplayer 55%, Open World 19.1%, RPG 13.6%, Sci-fi 12.2%

Why You'll Like It: Focuses on fast-paced, action-oriented space combat within a persistent multiplayer environment.

Stake your claim, command your fleets, and wage epic war in space.

Why similar: Massively Multiplayer 43.9%, Space 29.1%, Open World 10.9%, Strategy 9.6%, Sci-fi 6.4%

Why You'll Like It: A real-time strategy game with persistent space warfare and a heavy focus on alliance dynamics.

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 55.6%, Open World 18.8%, Sci-fi 12.5%, RPG 11.3%, Strategy 1.8%

Why You'll Like It: An open-world space game that focuses on ship combat, trading, and exploration with a distinct sci-fi atmosphere.

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 51.8%, Open World 29.9%, Sci-fi 18.3%

Why You'll Like It: Combines sandbox space exploration with deep ship-building mechanics and the ability to form alliances to control territory.

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 39.2%, Open World 20.3%, RPG 15.2%, Strategy 12.9%, Sci-fi 12.4%

Why You'll Like It: Blends RPG character progression with 4X strategy and large-scale fleet command in an open space environment.

Your journey to building a vast space empire begins behind the controls of a single ship. Explore the stars, trade goods, fight battles, build stations, buy and equip ships, and command fleets in a living, fully simulated universe that reacts to your decisions.

Why similar: Space 50.9%, Open World 21.6%, Sci-fi 14%, Strategy 13.5%

Why You'll Like It: Features a complex, living economy and fleet management system that appeals to players who enjoy the strategy elements of Second Galaxy.

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: Massively Multiplayer 57.8%, Space 34.4%, Sci-fi 7.7%

Why You'll Like It: Offers massive-scale space combat across a seamless galaxy, emphasizing strategic control and team-based warfare.

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: Massively Multiplayer 49.1%, Space 24.4%, Open World 17.7%, Sci-fi 8.8%

Why You'll Like It: A massively multiplayer space MMO that centers on building, engineering, and large-scale player-driven conflict.

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 46%, Open World 18.1%, RPG 15.3%, Sci-fi 11%, Strategy 9.5%

Why You'll Like It: A top-down space RPG that features open-world exploration and skill-based progression similar to Second Galaxy.

Anarchy Online – the first ever science fiction MMO – is now on Steam! Compete and cooperate with thousands of players simultaneously on a vast, alien world. Join humanity nearly 30,000 years in the future in a world of perpetual conflict and scientific marvel.

Why similar: Massively Multiplayer 58.8%, RPG 13.9%, Sci-fi 11.4%, Open World 10.1%, Strategy 5.9%

Why You'll Like It: A classic sci-fi MMORPG that offers deep character customization and a rich, persistent world.

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 71%, RPG 29%

Why You'll Like It: A space-based MMORPG that features a player-driven economy and territory control mechanics.

Build your base and battle with other players to control the galaxy! Galaxy Control is an ultimate space combat strategy game with fast-paced combats! Gather minerals and extract uranium, defend your base with laser towers, missile turrets, cannons, walls and mines.

Why similar: Massively Multiplayer 61.9%, Space 21.7%, Strategy 16.3%

Why You'll Like It: A strategy-focused game with base building and space combat elements that mirror mobile-style MMO mechanics.

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: Massively Multiplayer 66.7%, RPG 17.1%, Space 16.2%

Why You'll Like It: An indie space MMO that focuses on exploration, ship customization, and player interaction.

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 58.8%, Open World 19.1%, Sci-fi 11%, RPG 8.7%, Strategy 2.5%

Why You'll Like It: An open-world space exploration game with a focus on trading, combat, and fleet management.

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 54.2%, Space 20.4%, RPG 13.3%, Strategy 12.2%

Why You'll Like It: A cross-platform space strategy MMO that emphasizes player interaction and fleet-based combat.

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: Massively Multiplayer 43%, Space 27.4%, Sci-fi 11.1%, Strategy 10.4%, RPG 8.1%

Why You'll Like It: Features strategy-heavy space management with a unique retro aesthetic and deep ship customization.

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 50.9%, Open World 30.1%, Strategy 19%

Why You'll Like It: A sandbox game that allows for complex ship construction and survival in a persistent space environment.

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: Strategy 22.8%, Massively Multiplayer 21.7%, Sci-fi 20.4%, Open World 17.6%, Space 17.5%

Why You'll Like It: A strategy-focused space game that relies heavily on alliance-based warfare and resource management.

Explore the Final Frontier in the ultimate sci-fi strategy RPG, Star Trek Timelines! Join Starfleet and overcome challenges as you boldly go where no game has gone before – across the entire history of Star Trek.

Why similar: Space 46%, Strategy 20.2%, RPG 17.8%, Sci-fi 16%

Why You'll Like It: A strategy-focused RPG that involves collecting and managing crews and ships within a familiar sci-fi universe.

Play Astroflux - a retro styled, action packed MMO space shooter.

Why similar: Massively Multiplayer 63.2%, Space 22.2%, RPG 14.6%

Why You'll Like It: A top-down space action game with MMO elements and RPG-style progression.

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 82.3%, Strategy 17.7%

Why You'll Like It: A tactical strategy game that focuses on turn-based space combat and fleet management.

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 56.8%, Space 27.6%, Strategy 15.6%

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 71.4%, Strategy 20.6%, Sci-fi 8%

Why You'll Like It: A strategy game that emphasizes base building and alliance-based warfare in a sci-fi setting.

“4X-Galaxy” is a game developed by the 4X concept system(eXplore、eXpand、eXploit、eXterminate)

Why similar: Massively Multiplayer 53.7%, Space 19.2%, Strategy 11.3%, RPG 9%, Open World 6.9%

Discover yourself in the “Age of Discovery” where you’ll sail out into the uncharted waters! Discover real historical artifacts and mystical legends! Start a company and make enormous fortunes! Fight in fierce sea battles! Whatever your play style, you can play who you want and how you want in UWO!

Why similar: Massively Multiplayer 64.7%, RPG 15.8%, Strategy 11.4%, Open World 8%

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 45.7%, Space 28.9%, Sci-fi 9.2%, RPG 9%, Strategy 7.3%

UFO Online: Invasion is a turn-based tactical combat MMORPG set in the post-apocalyptic world

Why similar: Massively Multiplayer 60.5%, RPG 14.5%, Open World 13.2%, Strategy 11.8%

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 47.2%, RPG 39.5%, Sci-fi 13.3%

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 39.4%, Open World 26.8%, RPG 23.8%, Strategy 9.9%

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: Massively Multiplayer 51.2%, Space 31.7%, Strategy 10.3%, Sci-fi 6.8%

An exceptional sci-fi strategy game based on space adventure as its core.

Why similar: Massively Multiplayer 48.7%, Space 19.1%, Strategy 12.5%, Sci-fi 11.7%, Open World 8%

Downfall MMORPG is an open-world sci-fi & fantasy MMORPG where magic and technology collide. Choose a faction, forge your own playstyle, and fight for control of a living world in massive PvP battles and endless PvE adventures.

Why similar: Massively Multiplayer 45.2%, Open World 15.7%, RPG 14.3%, Space 12.9%, Sci-fi 11.8%

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 65.4%, Open World 14.1%, Space 7.7%, Sci-fi 6.6%, Strategy 3.5%

Massively multiplayer online game in the world of magic and steam. Become a pirate or a trader, a carrier or a manufacturer in this unfriendly world inhabited by dragons.

Why similar: Massively Multiplayer 57.7%, Open World 15.8%, RPG 14.6%, Strategy 11.9%

Build cities, command troops, and manage resources like in a traditional RTS, and also go on quests, chat with your friends, join guilds, and trade like an MMO. SAGA is an MMORTS with battling similar to the Total War series, mixed with city building from Stronghold.

Why similar: Massively Multiplayer 81.7%, Strategy 18.3%

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: Massively Multiplayer 65.2%, RPG 14.4%, Open World 11.9%, Sci-fi 8.6%

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: Massively Multiplayer 74.3%, Open World 25.7%

Welcome, commander, to Project Entropy- an ultimate Sci-Fi and role-playing game with battles in space. In this immersive MMO experience, you will command alien civilizations, conquer uncharted planets, and build Hero fleets.

Why similar: Strategy 50.3%, Sci-fi 49.7%

Codename: Rogue Fleet is a multiplayer team-based game about spaceships combat.

Why similar: Space 77.1%, Open World 22.9%

Gangs of Space is a massively-multiplayer Rogue Shmup where Gangs of players compete for the conquest of the galaxy.

Why similar: Massively Multiplayer 64.3%, Space 23.1%, RPG 6.8%, Sci-fi 5.7%

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: Massively Multiplayer 68%, Space 25.6%, Sci-fi 6.3%

Battle Arena is a multiplayer, immersive 2D Sci-Fi shooter! Plunge into the world of space battles and be the first!

Why similar: Massively Multiplayer 100%

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 41.7%, RPG 21.8%, Strategy 20.7%, Sci-fi 15.7%

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: Massively Multiplayer 41.1%, Space 30.3%, Open World 18.5%, Sci-fi 10.1%

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 49.2%, Open World 23.7%, RPG 23.4%, Sci-fi 3.7%

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 100%

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 48.1%, Open World 34.3%, Sci-fi 17.7%