Top similar games like Ostranauts:

Build your ship, manage your crew and explore the cosmos whilst trying your best to keep your crew alive and your ship fully functioning. This game utilises an events driven AI and simulated ship systems to ensure gameplay is kept challenging and every game you play has a different story to tell.

Build your way to success! Trade your way to the top! Explore your way to infamy! Do it all your way!

Embark on a space voyage with your ragtag crew of civilians in search of a new home. Build spaceships tile by tile, create optimal gas conditions, manage the needs and moods of their crew, encounter other space-faring groups, and explore the universe in this spaceship colony simulation.

Stardeus is a deep colony sim set on a broken starship manned by drones and hibernating human survivors. As the AI, have your drones repair your ship, save your crew and travel the stars in this beautiful simulation.

Obey protocol or go rogue as you take on the role of a powerful A.I. in Starmancer. Build bustling space ports, secret laboratories, and incubators for mysterious eggs. Defend against starvation, sabotage, and space zombies. Don't worry, you can always grow more humans.

The Final Earth 2 is a vertical sci-fi city builder. Earth is unlivable, so you decide to create a space colony. Gather resources, then build and research your way to a better future! Grow your city from an exploration ship to a huge metropolis, full of advanced technology. What will you build?

The Last Starship is a space-based construction, industry & factory game, currently in Alpha (expect regular free updates). Design star ships and take on a variety of missions from mining and passenger rescue to combat whilst working on the greatest engineering project ever attempted by humankind!

Command swarms of warriors at an unprecedented scale of warfare in this blend of RTS and base-building. Lead ant colonies against the many fearsome threats of the insect world, while building intricate nests, developing pheromone-based tactics, and evolving to meet growing dangers.

Discover a whole new world with Mars City Builder! Construct roads, erect buildings customize the city and take care of its safety. After all, you are the first Martian settler and this is a vast, unknown land. Develop it in any way you please!

Explore a fantasy ocean-punk world, braving the deep with steam-powered marvels. Discover mysterious underwater treasures, but scarcity and ecological crises test survival. Rise, build, confront foes in this pixel-art ocean survival journey!

Manage a space station, flying through a procedually generated universe, fight, build and survive in the coldness of space.

Design, build and control your own space station. Mission command and control is in your hands and only careful planning and vigilant supervision will keep your crew and space station safe.

Orphan Age is a dystopian life sim game where you play not as the soldiers of war, but as the children left behind.

The Spatials are back with Galactology! Design, build and protect your colony station from the many enemies you will make while exploring the galaxy and exploding their homeworlds.

All that matters is that you're a spaceship captain. Your objective is to explore the far sector. Build, develop, and research. Get to the bottom of the targets of your mission and find out the truth of what happened before it.

In this survival sandbox, get ready for a big adventure - in a miniature universe of tiny planets! Construct & defend machines, design factories, fight bosses, and build a mini-empire across the mini-verse!

Take command of your own colonial ship. Ensure the survival of your inhabitants and try to find a new habitable planet. This is the goal of the the Exodus H Space Commanders.

Space station building game. Survive, expand, prosper, and become a major hub!

A deep starship colony sim. Build your starship, manage air, water, food, fuel, energy, temperature and psychology to keep your crew alive across vast distances. Closed-loop system in space. Mining, wiring, plumbing, in-ship factory, (alien?) radio signals & translation, diplomacy, combat, and more.

Of Life and Land is a charming settlement-building strategy game paired with a rich simulation experience. Every animal and plant tries to find their place in nature while you lead your villagers to their future. Expand to different regions and trade with local factions to gain needed resources.

Build and manage colonies throughout the solar system! Taking care of the staff, get resources, explore new technologies, trade and complete tasks.

A sci-fi colony sim driven by an intelligent AI storyteller. Generates stories by simulating psychology, ecology, gunplay, melee combat, climate, biomes, diplomacy, interpersonal relationships, art, medicine, trade, and more.

A colony sim set in a post-apocalyptic dystopia. Build and defend your base. Manage your survivors. Engage raiders, aliens, Remnant soldiers and other factions in real-time-with-pause combat. Or use stealth to outwit them. Explore the massive world. Survive at all costs

The world has ended. You are deep underground, and all alone with a cheery AI companion. You will have to mine and build to survive, and search for other survivors to help you. Will you be able to reach the surface? And what will you find when you get there?

Galactic Crew II is a roguelike space exploration game inspired by FTL and the classic XCOM games. You and your valorous crew members will explore a galaxy with all its dangers and riches. Explore and colonize planets, customize your spaceship, raid underground dungeons, mine, trade and craft!

Build your sky city while exploring a vast landscape in this Open World RPG City Builder. Combining the methodical construction and management of a city builder; the unique lift, balance, and propulsion needed for a flying city; and the compelling characters, dangers, and adventures of an RPG!

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.

As the AI responsible for a Generation Ship, you are humanity's last hope. Build efficient raw material cycles and help your crew in a realistic real-time simulation to survive the challenges of space on their long journey to a new home!

EarthX is a rocket company management game. Go from launching small rockets on Earth to eventually building a colony on Mars. Create your own Internet constellation, develop new technologies, supply the International Space Station and terraform Mars!

Create your own prehistoric civilization and lead your tribe in a world you shape. Start with nothing, build towns and industry, and advance through thousands of years of technological breakthroughs in this intimate yet expansive colony sim.

It's the year 5781 -- and you have been chosen to build and lead a space station in a wild corner of the galaxy! Attract visitors and explore hundreds of planets to fund your station.

Guide a group of space settlers trying to establish a base on a remote planet. Grow food, collect energy, mine resources, survive disasters and build a self-sufficient colony in a harsh and unforgiving environment.

Space Station Continuum is a building & management sim inspired by the past, present, and future of humans in space.

Surviving Ceres is an open world survival game with an emphasis on crafting and base building. Export rare materials and manufactured goods to earn funding used to unlock new technologies and upgrades. Bring in colonists from earth to work advanced facilities to terraform the planet.

Build and manage mankind’s first mission across the universe! Create a sprawling facility underground, recruit a diverse group of specialists from around the globe and explore mysterious new worlds through the Exogate.