
Sector Space
Explore a procedurally generated galaxy, mine asteroids, refine minerals, colonize planets, build stations, deploy drones, salvage rare items…
If the competitive and replayable rhythm of Voidspace stuck with you, this helps. These games could fill that gap nicely.
Boundless is a voxel sandbox MMO where you shape a citizen, claim land with beacons and travel between dozens of colorful planets through portals you build yourself. Hunt strange creatures, craft tools and machines, trade in a player-run economy and grow a settlement into a world capital. It plays at your own pace, alone or with friends.
Competitive, Replayable
Explore a living galaxy in Stars Reach. Discover new planets, build settlements, and shape environments that react to everything you do. Players work together to transform untamed worlds into thriving civilizations across a single shared universe.
Replayable
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.
Replayable
Open world multiplayer sandbox/RPG game. Explore, gather, build, research, and fight to protect what's yours -- by yourself or together with your friends.
Competitive, Replayable
A voxel sandbox in space where every ship, station and turret is built block by block, then flown into battle. Mine asteroids, run factories, trade, and network the galaxy with warp gates. The universe is procedurally generated and nearly endless, and it bends to your settings. Best with friends on a server.
Replayable
Xsyon is a player driven apocalyptic fantasy sandbox MMORPG, set in a living and evolving environment. Players create the world they want to live in as they form tribes, construct towns, shape landscapes, create quests, hunt, farm, gather, build societies and develop a New World.
Competitive, Replayable
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
SpaceCraft is an online galaxy where you mine planets, build your own ships from parts, automate bases and trade with other players. Fly out, scan a system, land, dig something up and turn it into a business. A calm, open-ended space sandbox that rewards patience and works best with friends.
Dig for resources, terraform the land, build a stronghold, or take someone else's. One persistent world, no subscription, and skill progression that keeps moving even when you are not logged in.
Competitive, Replayable
Farm, hunt, cook feasts, build a homestead and raise its quality ever higher, all in a world other players can reshape too. With permanent death and open PvP, every choice, and every neighbor, carries weight.
Competitive, Replayable
Embark on an adventure set in a fantasy survival RPG. Visit a borderless, open world where you manage resources to construct your base and new types of equipment to support your conquest.
Replayable
BitCraft Online is a single shared MMORPG world where slow progress is the point. Send your character off to chop, mine and craft while you do something else, then come back to a full warehouse. Terraform the land, trade in a player-run economy, and build something that outlasts your session.
Competitive

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

Pick a role in a huge generated galaxy: explorer, miner, farmer, cook, scientist or builder, alone or with friends.

You’ll see an unexplored world full of dangers, mysteries and adventures.

The ultimate block building game. Start with nothing and build an empire. Smooth voxel worlds, settlers, crafting, vehicles, and Steam multiplayer.

Flee a broken past, then craft, build and explore colorful alien worlds at your own pace, alone or with friends.

Skullborn is an infinite massively multiplayer sandbox game!

Heavenworld is an open world adventure game mixing role playing, survival and management with NPC survivors.

Build a blocky spaceship from scratch and take it into an open galaxy where mining, trading and piracy all pay off, and every battle leaves dents in…

Masterspace is a game about mining, creating and exploring, featuring fully destructible environments and spaceships that allow you to travel…

Remains - survival in outer space orbiting the planet. Explore the area. Find a way to restore oxygen. Create tools for your needs.

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

Kinetic Void is a 3D space adventure with a focus on customization and enjoyable space simulation.

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

A brutal post-apocalyptic sandbox where the sun itself is out to kill you.

Explore procedurally generated planets, craft gear and ships, and fight the Red Darkness alone or with friends.

A massive online multiplayer where everyone plays on an exact replica of planet earth.

Build a life in a shared world where death is permanent and your neighbors can be either your greatest help or your greatest threat.

Gather, craft and build at your own pace in a colorful shared world that keeps going while you are away.

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

A social cross-platform MMORPG. Enjoy mastering skills, quests, achievements, puzzles, mini-games, crafting, and extensive customization.

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

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

A simple game with big ambitions. Fight creatures, explore the world and progress your character in this ever changing world.

Embark on an adventure set in a fantasy survival RPG. Visit a borderless, open world where you manage resources to construct your base and new types…

Pick a role in a huge generated galaxy: explorer, miner, farmer, cook, scientist or builder, alone or with friends.

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

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

A free-to-play co-op sci-fi looter shooter where every mission changes the universe for everyone.

An online multiplayer game of crafting, survival, civilization building, and player collaboration.

A massive online multiplayer where everyone plays on an exact replica of planet earth.

An old-school fantasy MMO with no classes and no rails. Combine dozens of skills into your own build, get turned into a cow, raise the dead, and dig…

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

You are an engineer stuck in the Void with a trolley and a hammer.

Gather, craft and fortify a base, then push back against the empire in first person, alone or with friends.

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

Gather, craft and build at your own pace in a colorful shared world that keeps going while you are away.