Top similar games like Once Upon The Universe:

In Reus, you control powerful giants to shape the planet to your will. You can create mountains, oceans, forests and more. Enrich your planet with plants, minerals and animal life. There is only one thing on the planet that you do not control: mankind, with all their virtues and and all their vices.

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.

Simmiland is a god-like card game. In this game you indirectly influence a small civilization by manipulating their surroundings by playing cards 🃏🃏🃏 Playing cards on different biomes and objects will result in different findings. The way you play the game will define how mankind will develop!

The Fermi Paradox is a choice-driven sci-fi narrative strategy game in which your decisions in one corner of the galaxy can upend entire civilizations in another. Guide species through millennia and help them explore the vastness of space, make contact and, perhaps, create harmony.

In this expansive, open-ended idle game, freely explore, research, design, and manufacture your unique swarm to combat the endless alien tide. Utilize a multi-layered reset structure to continuously strengthen your forces and ultimately discover the method to save human civilization!

Engage in the construction of your station from a variety of different modules. Create your space fleet. Protect your base from enemies...

Play with evolution! Species: ALRE is a scientifically-grounded, emergent simulation of natural selection. Creatures evolve and speciate in response to in-game mutation and selection forces, allowing you to experience and tinker with evolution in real-time.

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.

Doodle Empires is an alternate history sandbox game all about drawing your own nations with your own histories and stories in a variety of maps. Watch your world take shape and evolve over time, and decide which nations will rise and which nations will fall.

READY FOR CRAFTING VIRTUAL WORLDS ON YOUR PC?The acclaimed world-building game featuring a unique mission-based approach is coming onto PC via Steam Early Access. With over 16 million players on mobile & tablets versions and 1,500,000 pixel blocks creations shared in the Online Gallery to date, this PC version is taking world...

Your people landed on a virgin forest island. Develop the island, build a house, make fields and barns, develop agriculture, fishery and industry, Let's develop into a wonderful island. It is a box-garden / sandbox-type simulation game that guides people and develops and develops islands. Andy maintenance (c)

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

Haul cargo, hunt bounties, upgrade your ship and get paid in a gritty lo-fi universe. Hand painted graphics, procedural generated star systems that can be navigated, story campaign mode or huge open-world.

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

The Last Starship is a 2D space construction game where you design and upgrade your starship. Choose your path: pirate hunter, miner, engineer, spacebus driver, and more, whilst exploring vibrant star systems. Enjoy a growing sandbox world, with regular free updates. Your cosmic adventure awaits!

From a small 2-man team comes a unique space station management sim. Take on the role of an A.I commanding a lost space ark. Try not to let your crew run amok and wreck the place.

Create and destroy on a scale you’ve never imagined!

Design and simulate the starships of your dreams! Command your ship or fleet in epic battles and manage your crew while exploring a dangerous galaxy. Play alone or with friends, test your ships in online PvP, and let your imagination reach for the stars!

Commanding a starship, you’ll trade goods across the galaxy, evade cosmic threats, and grow your trading empire. Do you have what it takes to outmaneuver rivals and become a trading legend? Take command of your destiny in Epic Space Trader, your journey to the stars begins now!

A brutal godlike village sim that melds the god game, management, and tower defense genres! Fight off hoards of monsters at night, and expand your village in the day time. Inspired by games like Black and White, Rimworld, and Dwarf Fortress but not quite like any of them.

Get ready for conquering the world as a God! Show compassion to those who have nothing and they will love you. Take from those who have everything and they will fear you. Gain worshipers, fight skepticism and make the Earth belong to the gods once again! Long live the Greek Gods!

Start as an asteroid, grow by absorbing other celestial bodies to become a planet, a star, and ultimately a black hole. Experience realistic gravity and orbital physics in an ever-evolving sandbox universe.

A mostly peaceful pixely isometric city builder with a bit of magic. Four different people live in the four quadrants of the pyramid. Fishermen, farmers, fire people, magicians. Gather resources, build homes, challenge demons and create a thriving city while preparing for winter.

A sci-fi settlement building game with orbital mechanics. Start from a spaceship, scan asteroids, manage fuel, ore, electricity, time, and sanity, while expanding your settlement, exploring an alien solar system, and building stations and spacecraft to support your growing colony.

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!

The technologically advanced humanity starts looking for other planets to conquer. Now that the Earth is depleted of its resources, we're looking for them elsewhere. The Universe is open for us now - and it cannot hide any secrets. So how will you conquer it?

Rule a nation by issuing voice or text commands to an AI and conquer the world. Voice input supports Chinese and English; text input supports all languages.

An idle clicker game with random values and 2,000+ upgrades. Random upgrades, prestige, perks and many more features!

A calm creative experience where you guide the development of an alien ecosystem. Study the environment and discover what drives it, or just sit back, relax, and see what happens!

Gaia Maker is a planet-wide simulation game of terraforming, based on real physics and geology. As the planet's overseer, wield advanced technologies to reshape barren planets into life-filled worlds. Foster animal life, cultivate civilizations, or destroy them. Their fate is in your hands.

Become the Captain of an interstellar cruiser and journey across the galaxy to save the Republic. During your journey you will have to make important decisions, improve the weaponry of your ship and fight against numerous enemies.

Forge a new kingdom in a land recovering from the Fracture. Which of the surviving races will you lead to rebuild, explore, and conquer the unknown? The dwindling yet immortal Ancients? The bold and resourceful Humans? The life stealing Ardyn? Or the secretive Gwdir who shape living groves?

Mine asteroids, salvage space debris, design your own small or massive spacecraft using individual functional components, complete missions, and engage in battles against enemies in a vast galaxy with realistic physics based on orbital mechanics or in a classic physics mode.

Interstellar Inn is a 2D hotel building and management sim in space.

In the distant future, the X universe faces a period of profound and irrevocable change. While the universe stumbles towards an uncertain future, countless adventures await as new enemies rise in search of power.

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.