Top similar games like Project Substrata:

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.

Final Factory blends factory building, spaceship design, and a rich universe to explore. Build a mega factory and command a massive fleet against the hostile local aliens. Discover new technologies and unlock the secrets of an ancient civilization as you explore an infinite cosmos.

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.

Guide pioneering settlers among Venusian clouds in this space colonisation city builder. Grow food, collect energy, mine resources, balance buoyancy and weight to stay afloat in the treacherous Venusian atmosphere, and build a self-sufficient colony while navigating storms and acidic clouds.

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?

Build cities and factories in an infinite Hex World. Explore more tiles. Balance your city's production and consumption, attract more citizens of different classes, research new technologies and build more factories and cities.

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.

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!

Rionag: Survey Fleet is a top-down starship builder and logistics game where it's your job to balance the needs of the crews with cutting-edge equipment on board. Unlock tech that adds new capabilities for your ships to go through hazardous environments, enabling you to explore new worlds.

Explore endless Universe and create the most efficient constellation of colonies. Build conveyor systems to automate production. Take care of Astronauts and their needs! Establish new colonies as part of intergalactic simulation.

Main Sequence is a space-sim factory builder where your goal is to build an interstellar industrial empire. Collect resources, automate production, and expand your fleet of ships in order to survive and leave your mark on the galaxy.

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

Build the most efficient intergalactic factory in space simulation strategy game Dyson Sphere Program! Harness the power of stars, collect resources, plan and design production lines and develop your interstellar factory from a small space workshop to a galaxy-wide industrial empire.

Take over an abandoned space station and manage your own ore mine. Cut through the asteroid with your laser, sell ore, and create an automated network of robot helpers to maximize your profit.

Create an extrasolar efficiency utopia from scratch! In this sci-fi city builder you need to start mining operations, plan production, and lay down transportation routes to ensure a smooth supply chain.

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.

HAS Galactics is a top-down factory builder. Design your own rocket, automate your production lines, balance your reputation between the Galactic Factions and complete daring missions. Start from a humble beginning… to a thriving galactic mega-factory!

Untethered is a space survival-sandbox set in our own cosmic backyard. Explore zero-gravity environments, build and operate realistic space stations, and fight to stay alive in the unforgiving realm of deep space.

Outer Factory is a peaceful and minimalist simulation where you design automated factories on different planets. Create complex infrastructures with simplified building mechanics. Enjoy your work as an interplanetary automation expert.

Astrometica: Prologue is the free game about surviving in space. You need to use your skills and tools to stay alive. There are many challenges to face, and you need to fight to survive. You also need to build a new base in space.

Design, build, and optimize intricate, space-efficient factories in a unique grid-based puzzle system. Master complex supply chains and dominate a living interstellar economy to build your corporate empire. Conquer the cosmos alone or with friends.

Buried Cargo is a terminal-driven automation game. Wake up as a lone maintenance robot buried beneath a dead world. Use real command-line controls to connect machines, extract scrap, and build your automation network one command at a time. No tech trees. No UI. Just code, junk, and logic.

Woolly’s World is a first person colony builder game

COMPLEX SKY is a futuristic city building game with a unique architecture system - build the city both ways, up and down! The world is devastated by pollution, and it’s up to you to create a fully self-sustainable city in the skies, and populate it with human settlers.

Rebots is a first-person automation game with an expansive universe to explore. Using intelligent(ish) rebots, you can gather resources, terraform planets, and scan all of the things. Traverse the galaxy in the name of space capitalism!

Guide a robotic mission in Venus’s polar clouds in this space colonisation city builder. Collect energy, mine resources, balance buoyancy to stay afloat, in the treacherous Venusian atmosphere, and build a self-sufficient base while navigating storms and acid clouds to hunt mysterious anomalies.

Help humanity to spread throughout the cosmos by exploring new worlds, building space factories and setting up trade routes. Research advanced technologies to increase efficiency and unlock new paths of development. Fight off other artificial intelligences in your goal to reach the Final Upgrade!

SpaceFlight Factory is an Automation and Base Building game with some survival game mechanics.You lead a small colony of human remnants. Help them to survive, expand and gather enough resources to leave Earth for their new home planet.

The ultimate space capital ship combat compendium is the evolution of hard core space combat sims. The only game of its kind currently in existence.

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.

A 4X strategy game where you start by hatching a single egg and eventually build a galactic empire to rival the greats. Craft resources, navigate politics, and shape the future of the universe in this unique space sandbox.

Forge your destiny as a blacksmith! Automate your workshops, optimize your supply chain, research new materials, craft legendary weapons, and cast your place in the world.

As head of an interplanetary corporation, your goal is to extract resources from across the solar system and bring them home faster and cheaper than your competitors. Construct trade depots and colonies. Build rockets and spaceports. Master realistic orbital mechanics and maximize profits.

Become the hive mind of a robot ant colony in Microtopia! Use pheromone trails to create, automate and optimize supply chains for your ants to follow. Collect resources, produce goods, feed your queen, grow your colony and fly out to expand the species!

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.

The Universe is yours. SpaceCraft is an online space exploration and building game. Explore a vast galaxy of solar systems and planets, mine and craft resources, design and build ships, automate planetary bases and interplanetary logistics, trade and cooperate.