Top similar games like Untethered:

After a mysterious accident you are left are stranded, floating through space on a piece of a space station. Craft supplies and Hubs to expand what is now your home. But be warned space is a dangerous places where one mistake can mean certain death. Can you defy the odds and survive in space?

Medusa Frontier is a budget sci-fi survival game being developed with OpenGL & C++. Gameplay is currently limited to resource gathering and base building on a 1k terrain map.

Red Planet: Survive is a first person survival game for Microsoft Windows. Surviving in the harsh conditions of the Red Planet will be hard, but if you are strong enough, you will succeed. Find the best way to survive, but be careful, since each wrong step will ensure your demise. The environment is your main enemy.

Factory management and sandbox base building in zero-g environment. Survive, expand and then dominate space industrial market. Build large scale resource processing plant completely from nothing.

Stranded on a hostile alien world, you must gather resources, craft tools, and automate production to survive. Build a base, fend off deadly wildlife, and uncover ancient secrets in this immersive sci-fi survival adventure. Will you conquer the planet or succumb to its perils?

You were deep in uncharted space on a research mission. Disaster struck. Together with your friends, explore a mysterious asteroid field and mine whatever resources possible to build what you need to survive.

LithoBreak is a survival factory-builder grounded in real physics and engineering. Build and automate a lunar colony, explore in first-person, and survive constant orbital threats – all while you Play with Science

Go to the Moon to explore its harsh nature and mysterious anomalies. Build your own lunar base, craft equipment, extract valuable resources and make many discoveries. Overcome the challenges of extreme lunar conditions, an oxygen-free atmosphere and much more unknown...

Grab your jetpack and explore procedural asteroid fields, derelict spaceships and abandoned outposts. Build and automate your Space Rig to process scavenged trash. Craft, trade and fight your way home in this interstellar, open-world survival sandbox.

Yuri’s Resolve is a single-player factory-building game set in Mars' orbit. Salvage wreckage, mine Phobos, construct manufacturing systems, and forge a path back home. Operate from the immersive cockpit of your ship as Yuri’s Resolve delivers a bold, innovative take on the factory building genre.

You are the lone survivor orbiting a potential new home planet, tethered to what’s left of your ship. Gather nearby debris and assemble a make-shift vessel in an attempt to survive the harsh realities of space. Maybe you'll live long enough to uncover the truth behind the ship's malfunction...

Satisfactory is a first-person open-world factory building game with a dash of exploration and combat. Play alone or with friends, explore an alien planet, create multi-story factories, and enter conveyor belt heaven!

100000 years after the apocalypse, a mysterious entity guides you to build a factory on a desert island...

Astrometica is a space exploration and base-building survival game. After a catastrophic event, explore vast space, gather resources, build bases, and uncover cosmic mysteries. Use advanced technology, craft tools, and discover new blueprints to survive and thrive in the unknown.

Create an automated system that terraforms a planet with an army of drones. Build bases, set up a weather monitoring system, strategize ways to survive different types of storms, and take control of the climate and biomes!

Build floating automated rigs in a volatile gas giant. Extract elements, synthesize compounds, and descend through atmospheric layers in this sci-fi systems-builder focused on chemistry, engineering, and survival.

Remains - survival in outer space orbiting the planet. Explore the area. Find a way to restore oxygen. Create tools for your needs. Beware of the dangers of outer space. Build your shelter in orbit and try not to die!

Set on small procedurally generated planets, PoliPlanet is a unique first-person city building game. Discover new planets, gather resources, craft, explore, and build.

Sent on a reckless mission, you find yourself in outer space filled with numerous dangers and things to explore. Build, craft, manage your crew, look after the chicken, and defeat the evil space corporation in this new breathtaking survival game.

Embark on a journey of survival, crafting, and automation in this free prologue introducing one of the planets you can transform in Eden Crafters – an upcoming open-world game that challenges you, alone or with friends, to turn a hostile planet into a habitable haven for humanity.

In XenoHaven, gather resources to build shelters, enslave alien beasts to work for you, and run restaurants and shops. Delve into dark underground dungeons, defeat swarming insectoids and mighty bosses, and craft powerful gear to conquer the alien world.

WarpedSpace is a sci-fi survival adventure game set in deep space. A massive, open environment full of wonder and peril awaits you!

Interact with strange new worlds in a unique and tactile way, molding the environment itself as if it were clay in your hands. Build your base, master resource management, automate your production lines, and more as you unravel the mysteries of the universe, alone or with friends.

Construct, maintain, manage and upgrade the fleet of your space robots in this sandbox crafter. Build the base, gather resources and automate to succeed in your mission in a unique robotic spacesim.

A space survival crafting mining base building and star system building game. Craft rockets to create planets and Dyson Rings, mine and craft advanced materials, terraform the terrain, manage electricity, farm food, and more as you watch the star system evolve into stunning, ever-changing views.

TerraTech Worlds is an open world, build-craft adventure game, set on an uncharted alien world. Play solo or with friends, explore your surroundings, craft unique vehicles, construct automated bases, and battle your way through hazards and enemies to harness the power of your environment

You wake up alone in a damaged space station with no memories. To get out of here, you will have to build your own spaceship. But survival comes first: gather resources, build a base and a factory out of gear and steam, and explore hand-crafted planets with unique biomes and resources.

Voidless is a sci-fi space survival sandbox set in the near future within a realistic scale solar system. In first or third person, players can explore planets and asteroids, collect resources, and craft items. As well as building bases and ships, all with physics based flight and combat.

Embark on a journey of survival, crafting, and automation in Eden Crafters, a solo and co-op open-world game that challenges you to turn a hostile planet into a habitable haven for humanity. Temper the climate, create a breathable atmosphere, and turn toxic lakes into water: shape a new world!

Vilset is a strategic simulator based on the principle of survival of people, who turned out to be beyond the limits of their civilization.

Triton Survival is an open world survival game about exploration, construction, engineering, and fighting on planets. Embark on this interstellar adventure and conquer the galaxy. Are you ready?

INTERASTRA is a fully immersive first-person sci-fi survival adventure game set in outer space. Discover unknown planets differing in weather conditions, resources, and various mysteries. Craft necessary equipment, launch, and control space rockets, explore the universe, and survive among the stars.

An open world survival and automation game. Engineer Alpha combines an infinite editable world, building and connecting of automated machinery, and RPG style player progression.

While searching for a new home, an unexpected failure in your ship has left you stranded on a planet surprisingly similar to Earth. Discover a vast open world, hunt for food, develop technologies, and build yourself a new home to survive!