
Sector Space
Explore a procedurally generated galaxy, mine asteroids, refine minerals, colonize planets, build stations, deploy drones, salvage rare items…
Want something that feels competitive and replayable the way AEXXOS does? These games keep things close enough to feel familiar.
Rebuild civilization from one planet in a persistent online 4X. Grow an economy, design fleets for the job, spy before you strike, and fight alliances for a galaxy that keeps moving while you sleep. Slow-burn strategy with real rivals: every mistake becomes someone else's opening.
Competitive, Replayable
An idle space MMORPG where progress runs while you are away, but the galaxy is built together. Chart a procedural universe of nearly 50 million star systems, craft gear, and join a Squadron to raise stations and claim territory. Play at your own pace; the frontier keeps growing either way.
Also in Co-op · Competitive
Pick NTO, SPX or BOF, grind credits and orbidium to turn a starter ship into a PvP hunter, join a clan, bid in hourly auctions, and queue for ApexGate waves. It is simple, grindy early-2010s browser fun that still hooks.
Also in Co-op · Competitive, Tense, Fast-paced
Command a fleet of up to six ships in a shared galaxy: hunt aliens, trade, loot treasure and build corporations with friends while a never-ending intergalactic war rolls on. Simple to pick up, deep once you're in, and playable on desktop or phone on one cross-platform server.
Also in Co-op · Competitive, Replayable, Tense
New Eden holds over 7,000 star systems shaped by its players, and you get to make your mark in it. Fight in huge fleet battles, trade, mine, build, run missions or scan wormholes for lost tech, in more than 350 ships you can fit out your way. Free to start, hard to master, easy to get lost in.
Also in Co-op · Competitive, Replayable, Tense
A relaxing single-player space sandbox where you set the rules of a generated universe, then fly out into it. Mine asteroids, haul cargo, run contracts, build a fleet of mercs and work your way up from a small shuttle to a carrier. No subscriptions, no other players, no pressure: just you, your ship and a lot of quiet space.
Replayable
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.
Also in Co-op · Competitive, Replayable, Tense
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.
Competitive, Replayable
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 :)
Competitive, Replayable
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.
Competitive, Replayable
You trade, fish, explore the Archipelago, and pick your shot type before each broadside. Best for captains who want sailing, cannon fire, and life on one shared sea.
Also in Co-op · Competitive, Replayable
Run your own spacefaring company in a player-driven economy. It moves in real time, so a few smart decisions a day go a long way. No combat, no grind: just business, and plenty of it.
Competitive, Replayable

Explore a procedurally generated galaxy, mine asteroids, refine minerals, colonize planets, build stations, deploy drones, salvage rare items…

Mine, trade and fight across a procedurally generated dwarf galaxy, at your own pace or with the ECHO autopilot at the helm.

Run one small ship through a simulated economy of mining, trade and war, then build stations and grow a fleet with friends in co-op.

Fly up to six ships through a shared universe of trading, treasure hunting and open war with other players.

Rebuild civilization from one planet in a persistent online 4X.

You trade, fish, explore the Archipelago, and pick your shot type before each broadside.

Design every deck and turret of a starship, crew it with simulated people, and take it into battles where damage tears your work apart piece by piece.

Fly through Subspace, build your own ship, and engage in epic battles. Mine asteroids and research new technologies.

Assemble a fleet of ships, set their formations and let careful planning decide battles across a dark, mysterious frontier.

Mine planets, assemble ships from parts and grow a trading empire with friends in an open galaxy.

Design every room of a pixel starship, set its AI, and test your creation against real players in tournaments.

Chart a vast procedural universe, craft and trade, and build territory together with your Squadron at whatever pace suits you.

Run one small ship through a simulated economy of mining, trade and war, then build stations and grow a fleet with friends in co-op.

A real-time multiplayer space trading game in a shared persistent galaxy.

Galaksia Online is an action-packed, 2D multiplayer space MMORPG blending retro pixel art aesthetics with mechanics.

Mine planets, assemble ships from parts and grow a trading empire with friends in an open galaxy.

Rebuild civilization from one planet in a persistent online 4X.

Explore a procedurally generated galaxy, mine asteroids, refine minerals, colonize planets, build stations, deploy drones, salvage rare items…

Fly, fight, mine and trade your way across a procedurally generated galaxy, then run the faction that rules it.

Mine, trade and fight across a procedurally generated dwarf galaxy, at your own pace or with the ECHO autopilot at the helm.

You trade, fish, explore the Archipelago, and pick your shot type before each broadside.

Hunt, mine, craft and trade across alien worlds where every item you own has real value.

A persistent real-time strategy MMO on one shared planet. Other players will come for your land while you sleep, unless your shield is up.

Stardust Exile is an RTS set in the Milky Way galaxy, containing currently known stars and exoplanets with their real characteristics.