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The existence of all mankind is under threat. You are the only hope!
Did Galactic Simulator leave you in a relaxing frame of mind? Give these games a try when the craving hits.
Galactic Simulator 2: Stargate is a roguelite simulation game inspired by the Fermi Paradox and the Great Filter. Pilot your ship, gather resources, build stargates, and discover other civilizations as you explore an ever-evolving galaxy.
Relaxing
Galimulator is a galactic empire simulation and sandbox game. See how Empires rise and fall, and how the people in them climb through the ranks to bring prestige to their Dynasty. Then throw in an invasion of self replicating Smatter monsters if you want to spice things up.
Relaxing
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.
Tap from lifeless rock to humans, dinosaurs, Mars and beyond. Cell to Singularity turns 4.5 billion years of evolution into a relaxed cosmic clicker, where every click earns Entropy and unlocks the next fish, lizard, mammal or machine, with real science notes along the way.
Relaxing
A physics-based space simulator where you play with the universe itself. Build solar systems, nudge planets out of orbit, boil oceans, spin Jupiter apart and watch a supernova unfold. Real gravity, real science, and no consequences except the ones you create. Calm stargazing and total cosmic mayhem, both at your own pace.
Relaxing
A 1:1 scale simulator of the entire Universe, built on real astronomy. Fly from Earth's surface to a black hole billions of light-years away without a single loading screen, land on procedurally generated worlds, and speed up time to watch a thousand moons tick through their orbits. No objectives, no fail states: just you, the stars, and a lot of quiet.
Relaxing
Shape a dead planet into a living world. Move mountains and seas, tune the climate, then seed cells and watch them evolve into plants, animals and strange chimera of your making. Guide every step or sit back and see what 50,000 years cook up. A calm, colorful sandbox for anyone who ever wanted to play at being a very patient god.
Relaxing
You are a terraforming AI with one job: make Mars livable. Balance atmosphere, water, temperature and energy in a simulated climate, keep your colonists alive, then do it again on stranger worlds until the whole galaxy is your construction site. A text-based incremental with real science under the numbers, a story that matters, and a hundred hours of it.
Relaxing
Once Upon The Universe is a god-game that takes you to the VERY beginning of creation. You begin the game just after the big bang, with nothing but an empty space and a lot of super hot hydrogen in the entire universe. Fill the universe with life and watch it thrive - or destory it.
Relaxing
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.
Relaxing
A fictional universe sandbox/exploration game. 🪐☄️✨ Shape your own solar system by terraforming planets. Find new species and make beautiful ecosystems . . . or breed destruction with volcanos, lightning storms and wildfires!
Relaxing
Lead a young starfaring civilization from its first faster-than-light flight to galactic power. Explore procedurally generated galaxies, colonize worlds, design fleets, out-talk or out-fight rival empires, and win your way: by conquest, culture, diplomacy or prestige. Every run plays out differently, and no two empires feel the same.
Also in Co-op

The existence of all mankind is under threat. You are the only hope!

The hit mobile game Interstellar Pilot 2 has come to Steam. Join the TEF forces heading to the Gatopean sector to find a new home for mankind.

Planets, aliens, resources, upgrades, caves, mapping & documenting star systems ... seek a new home for the human race.

You in the childhood dreamed to become a pilot? Ever wanted to work at NASA? It's "Galactic Landing"!

Create mini planets and civilizations. Let them flourish, or let them fall - literally. The choice is yours, Doctor Planet.

Generate watts, launch potato-powered probes and unravel a planet's mystery while a sarcastic ship AI keeps you company.

An open-world galaxy adventure game ✨🚀🌠 Explore a procedurally-generated universe filled with diverse micro-planets, asteroid belts and UFOs. 👽

Come with us now on a journey through music and space... To the world of VOYAGER ◯∘ A minimalist, relaxing & atmospheric experience to chill out to…

An incremental game with non-standard counting about creating life. Because there's nothing special about base 10.

Space Colonizers is a simulation and strategy idle game of Sci-Fi adventure theme.

Mini Gal4Xy is a light strategy game set in space.

A calm physics playground where every run starts as stardust and ends as something that swallows universes.

Terraform a barren world, tune its climate and watch the life you seed evolve across millennia, all at your own unhurried pace.

Run a space company at your own pace, moving cargo across the solar system one careful calculation at a time.

Claim procedurally generated planets, raise cities from a single spaceport, and grow your faction into a scientific or military power, alone or…

An idle space game that keeps running while you are away, then hands you astronomical numbers when you check back in.

The hit mobile game Interstellar Pilot 2 has come to Steam. Join the TEF forces heading to the Gatopean sector to find a new home for mankind.

Grow a microbe into a species, choosing every adaptation as your alien world changes around you.

Steer one of seven factions through an alien arrival, from covert politics on Earth to fleet battles across the Solar System.

A fictional universe sandbox/exploration game. 🪐☄️✨ Shape your own solar system by terraforming planets.

Stellar Settlers is a chill space base/city builder and colony sim game.

Guide a tiny civilization from caves to rockets, with tornadoes and lightning at your fingertips.

Guide a young spacefaring civilization across a fresh galaxy each run, growing it by war, trade, diplomacy or culture until the stars answer to you.

Build your own global colonies on distant worlds. Manage energy and resource supplies and produce goods for space trade.

One civilization, three skies: a planet torn by multiple suns, a cluster ruled by the dark forest law, and a galaxy of ten thousand stars.

An idle clicker where you grow one small planet into a galactic empire.

Galactic Simulator 3 is a space exploration and evolution sim inspired by the Fermi Paradox and Great Filter theory.

Shape continents and climates, then watch civilizations rise under your hand, with friends along for the ride.

An AI-driven space management RPG in a living galaxy. Explore 150+ planets and interact with 600+ NPCs whose lives and relationships evolve over time.

Balance a simulated climate, keep your colonists alive, and move on to stranger worlds when Mars is done.

Once Upon The Universe is a god-game that takes you to the VERY beginning of creation.

Run a space company at your own pace, moving cargo across the solar system one careful calculation at a time.

A futuristic sci-fi persistent universe exploration game with one million stars and 18 million planets and moons.

Gaia Maker is a planet-wide simulation game of terraforming, based on real physics and geology.

Steer one of seven factions through an alien arrival, from covert politics on Earth to fleet battles across the Solar System.

Terraform a barren world, tune its climate and watch the life you seed evolve across millennia, all at your own unhurried pace.