
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 tense the way DarkOrbit Reloaded does? These games are worth a look next. Plenty here let you team up if you like.
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
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, Tense, Replayable
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, Tense, Fast-paced
Galaksia Online is an action-packed, 2D multiplayer space MMORPG blending retro pixel art aesthetics with mechanics. Forge alliances, custom-build your starships block by block, and engage in massive faction-based PvP wars or challenging PvE raid battles across dangerous stellar sectors.
Also in Co-op · Competitive, Tense, Fast-paced
Take the helm of a combat starship in a galaxy left for dead. Star Conflict hands you over 100 ships, ten tactical roles and an open sector of alien ruins to loot, then lets you run the whole thing yourself: launch your own local server and bring friends along for PvP battles, PvE missions or quiet exploration.
Also in Co-op · Competitive, Tense, Fast-paced
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.
Competitive, Tense, Replayable
Build any ship you can imagine out of blocks, then fly it through a galaxy that gets more dangerous toward its center. Mine, trade, fight pirates or start wars, alone or with friends. Ships break apart exactly where you shoot them, which never stops being satisfying.
Also in Co-op · Tense, 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
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!
Also in Co-op · Competitive, Fast-paced
Manage your ship and stations, become stronger and synergize ship subsystems to become powerful. Struggle on first levels with one mob of the same tech level for a good minute? Destroy legions of high-tier ships in seconds while tanking all in the late game!
Also in Co-op · Competitive, Tense, Fast-paced
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
Command your own starship in a 1:1 recreation of the Milky Way with 400 billion systems. Trade, mine, fight, smuggle, and explore, then outfit one of over 35 ships to match the pilot you want to be.
Also in Co-op · Competitive, Tense, Replayable

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

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.

The hit mobile game Interstellar Pilot 2 has come to Steam. Join the TEF forces heading to the Gatopean sector to find a new home for mankind.

Design, build, or pirate spaceships. Build bases on planets.

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

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

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.

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.

Build a mining ship piece by piece, haul in asteroids and manage the heat your greed creates before something out there notices.

Design a working starship from the reactor up, then take it into a fresh galaxy each run as a miner, pirate hunter or anything else you fancy.

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.

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

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

Manage your ship and stations, become stronger and synergize ship subsystems to become powerful.

Design, build, or pirate spaceships. Build bases on planets.