60+ similar titles based on shared tags and player behavior. Themes include Simulation, Sandbox, Space Sim, Space.
A planet-building sandbox where you create entire worlds from the ground up. Generate unique planets, shape vast landscapes, and use interconnected simulations inspired by real-world processes to bring your fantasy planet to life.
Inspiral: Echoes of Gravity
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.
Worldwright
Worldwright is a god game at the planetary scale. Split continents, prune lineages, topple empires, and discover unique worlds across 5 billion years of geology, evolution, and history.
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.
Why similar: Space Sim 21.6%, God Game 20.3% ★, Sandbox 13%, Simulation 10.1%, Procedural Generation 9.7%
Worldwright is a god game at the planetary scale. Split continents, prune lineages, topple empires, and discover unique worlds across 5 billion years of geology, evolution, and history.
Why similar: God Game 24.9% ★, Science 21.6%, Sandbox 20.2%, Simulation 12.7%, Procedural Generation 11%
Create & destroy on an unimaginable scale with a realistic physics-based space simulator. Explore the beauty of our universe and the fragility of our planet. Use science to bend the laws of gravity, collide planets, boil away oceans, fire epic space lasers, and customize your universe.
Why similar: Space Sim 19.3%, God Game 18.6% ★, Science 14.9%, Sandbox 11.3%, Simulation 7.7%
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.
Why similar: God Game 27.3% ★, Sandbox 18.2%, Space Sim 17.8%, Simulation 14.8%, Space 6.6%
Sculpt planets and landscapes, watch water and climate respond, and compare two versions of the same world. Import heightmaps, draw mountain ranges, and export flat terrain to Minecraft Java. Explore Earth, ancient continents and distant worlds at your own pace.
Why similar: God Game 21.4% ★, Science 18.7%, Sandbox 17%, Simulation 10.6%, Space Sim 9.2%
Watch empires rise and fall, or intervene with godly powers, in GalactiWar, a space empire simulation sandbox game.
Why similar: God Game 24.4% ★, Sandbox 17.1%, Simulation 14.7%, Space Sim 13.9%, Science 12.6%
Biosphere Simulator is a planetary god game sandbox where you guide a dead volcanic world through billions of years of evolution. Seed life, shape ecosystems, unleash cataclysms, and watch civilizations rise from primordial microbes to spacefaring societies.
Why similar: God Game 25.2% ★, Science 15.9%, Space Sim 11.9%, Sandbox 10.1%, Simulation 9.5%
47 million probes were launched into the void. Yours just found something alive. A living universe simulation where evolution never stops — not even when you do.
Why similar: Space Sim 21.2%, Procedural Generation 18.4%, Simulation 18.3%, Sandbox 15.5%, Science 8.7%
Build machines, trigger chain reactions, and throw planets at each other. SPS combines flowing particles with rigidbody physics at scales from centimeters to thousands of kilometers. Run that experiment you've always wanted without burning down your house.
Why similar: God Game 27.7% ★, Space Sim 25.1%, Simulation 17.7%, Sandbox 15.6%, Science 11.2%
Space Travellers is a unique open-world sandbox space simulator set in the year 2343. Travel the galaxy, trade, explore unexplored worlds, fight, build bases and factories, forge alliances and experience new adventures!
Why similar: Space Sim 28.2%, Procedural Generation 15.3%, Sandbox 13.2%, Simulation 10.6%, Space 9%
Explore a seed-driven galaxy where every ship, planet, and dungeon is generated at runtime. Dogfight pirate wings, land on 20 kinds of worlds, raid surface sites on foot, and build a fleet from salvaged hulls, solo or in Steam co-op. The same seed rebuilds the same galaxy, every time.
Why similar: Space Sim 34.2%, Simulation 16%, Sandbox 15.5%, Science 11.6%, Exploration 7.5%
Become a pioneer of spaceflight. As an engineer in the Soviet Space Program you will be responsible for repairing, fixing and building the iconic spacecraft and rockets from the R-7 family.
Why similar: Space Sim 22.2%, Simulation 18.3%, Science 17.2%, Sandbox 12.8%, Space 8.5%
In Spaceflight Simulator, you will get to build your rockets, plan launches and flights, attempt landings, deploy payloads and explore new worlds.
Why similar: Space Sim 30%, Sandbox 18.3%, Science 16.5%, Simulation 10.7%, Space 10%
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.
Why similar: God Game 30.5% ★, Space Sim 28.9%, Sandbox 16.1%, Space 8.9%, Simulation 8.9%
A first-person astronomy simulator built on real astronomical data. Set up, align, and operate your telescope as the sky changes with location, date, and time. Use star charts and bright stars to find targets, then observe the Moon, planets, and faint, distant deep-sky objects through the eyepiece.
Why similar: Space Sim 35.7%, Science 22.8%, Simulation 10.9%, Sandbox 9.5%, Realistic 6.9%
Master the cockpit of highly realistic spacecraft in this Newtonian physics based sim. Take off from surface to space, plot a course between the planets and dock with space stations. Trade commodities or take shipping contracts to buy upgrades and optimize your build - every choice matters.
Why similar: Space Sim 21.6%, Sandbox 17.7%, Simulation 17.2%, Science 12.3%, Space 9.6%
A physics-based mining sim, set in the thickest debris field in Sol. Every action has a reaction, lasers are invisible without a medium, and your thrust is a potent weapon. Find trade, adapt your equipment to your playstyle, hire a crew to help. Unravel the mysteries of the rings, or just get rich.
Why similar: Space Sim 21.6%, Science 15.4%, Procedural Generation 11.8%, Space 9.6%, Sandbox 9.4%
Explore a scientifically accurate Milky Way galaxy and discover distant uncharted worlds, while having unrestricted access to every deck of your Magellan Class deep space exploration vessel. Interact with numerous fully simulated ship systems, or simply relax in the bar and watch the stars drift by.
Why similar: Space Sim 25.9%, Science 17.3%, Sandbox 11.7%, Procedural Generation 11.1%, Space 8.5%
Build rockets and fly them around the Solar System in this realistic aerospace sandbox. Attempt landings, build space stations, drive rovers, perform spacewalks, explore alien worlds, and get your crew home safe.
Why similar: Space Sim 29.7%, Sandbox 15.9%, Science 13.6%, Simulation 12%, Space 7.4%
In Kerbal Space Program, take charge of the space program for the alien race known as the Kerbals. You have access to an array of parts to assemble fully-functional spacecraft that flies (or doesn’t) based on realistic aerodynamic and orbital physics.
Why similar: Space Sim 23.6%, Science 19.2%, Sandbox 17.4%, Space 13.6%, Simulation 13%
A futuristic sci-fi persistent universe exploration game with one million stars and 18 million planets and moons. Fly your ship to any star and explore its solar system. Claiming stars, planets and moons will make them yours forever - other players will see your discoveries and you will see theirs.
Why similar: Space Sim 38.2%, Simulation 24%, Procedural Generation 11.2%, Exploration 8.7%, Space 7.1%
Take part in a space program. Design spacecrafts and send them off to explore the vast expanses of space. Experience the real scale of the Solar system and the size of its celestial bodies.
Why similar: Space Sim 22.1%, Science 17.9%, Sandbox 14.3%, Space 9%, Simulation 8.9%
Dynamic abstract sandbox universe. Changes and evolves as you do.
Why similar: Sandbox 19.9%, God Game 16.5% ★, Space 16.2%, Space Sim 15.8%, Simulation 9.5%
The world's first science-based photorealistic interactive 3D planetarium that models the entire Universe, using procedural generation for uncharted areas.
Why similar: Space Sim 22.5%, Science 16.2%, Sandbox 15.6%, Procedural Generation 10.1%, Space 9.2%
Explore the Solar System. Mine and drop asteroids. Colonize and terraform. Lead the space race and compete with other corporations on your way to profit. Watch the expansion of human race over the centuries.
Why similar: Space Sim 22.6%, Science 20.2%, Sandbox 15.5%, Simulation 10.7%, Space 10.2%
A 2D space trading game with a real economy. NPC ships haul cargo between 78 stations and prices move whether you're there or not. Good routes die as other traders catch on, so you keep hunting new ones. No quest markers, no "best trade" arrows. Just you, a map, and the prices.
Why similar: Space Sim 32%, Simulation 20.2%, Sandbox 19.7%, Exploration 7.4%, Procedural Generation 7%
I am excited to release my first game on Steam! SimpleRockets was released in 2013 for mobile and I've put a ton of work into it to get it ready for PC and Mac. It was inspired by KSP, and it offers a simpler 2D experience for building rockets and exploring space with realistic orbital mechanics.
Why similar: Space Sim 37%, Sandbox 23.4%, Simulation 23.2%, Space 8.2%, Physics 6.5%
Drifter is an open-world sandbox space trading game with a procedurally-generated galaxy 100,000 light years across made up of tens of thousands of star systems to explore and features an original soundtrack by composer Danny Baranowsky.
Why similar: Sandbox 20.6%, Space Sim 20.6%, Simulation 16.4%, Space 13.9%, Procedural Generation 11.3%
Lead an expedition into an unexplored solar system. Build rockets, aircraft, and other vehicles, discover new worlds, gather resources, complete missions, unlock technology, and grow a colony of tiny purple Klorps in this spaceflight sandbox.
Why similar: Space Sim 33.1%, Simulation 22.3%, Sandbox 17.7%, Space 12.3%, Exploration 5.7%
An artificial life simulation about a robot cultivating ecosystems on the moons of a ruined planet. Grow fantastical plants and animals, facilitate their evolution, and gather resources while discovering the secrets of this strange world.
Why similar: Space Sim 22%, God Game 20.6% ★, Science 13.7%, Sandbox 13.3%, Procedural Generation 11.9%
PHYSARUM is a sandbox simulation game. Simulate the real world slime mold Physarum polycephalum by generating millions of living particles. Create and mutate slime species in real time to discover countless mesmerizing and emergent patterns.
Why similar: Science 23.3%, Sandbox 21.5%, God Game 20.9% ★, Simulation 18.4%, Procedural Generation 15%
Galactic Simulator 3 is a space exploration and evolution sim inspired by the Fermi Paradox and Great Filter theory. Scan uncharted star systems, gather resources and samples, establish outposts and stargates, and witness the rise and fall of civilizations across an ever-evolving galaxy.
Why similar: Space Sim 31%, Procedural Generation 16.5%, Sandbox 14.5%, Simulation 14.3%, Space 10.3%
The existence of all mankind is under threat. You are the only hope!
Why similar: Space Sim 29.5%, Science 19.8%, Simulation 17.5%, Space 12.3%, Procedural Generation 9.7%
The world's first science-based photorealistic interactive 3D planetarium that models the entire Universe, using procedural generation for uncharted areas.
Why similar: Space Sim 40.6%, Simulation 27%, Space 10.6%, Exploration 9.2%, Realistic 7.4%
Kerbal Space Program 2 is the sequel to the acclaimed space-flight simulation game Kerbal Space Program. Enter the next generation of space adventure with exciting new parts, stunning visuals, fully revamped UI and Map View, and rich new environments to explore.
Why similar: Space Sim 20.9%, Science 20.2%, Sandbox 15.6%, Space 9.5%, Simulation 8.8%
Build rockets and shoot them into space. Once you reach orbit, you are halfway to explore anywhere in the Solar System.
Why similar: Space Sim 35%, Simulation 20.1%, Science 16.6%, Space 15.1%, Exploration 9.3%
Explore a seamless endless universe with an uncountable number of galaxies, stars, planets, and moons. Make friends or enemies with unique alien civilizations. Research upgrades for your vessel with scientific phenomena and alien tech that you've acquired.
Why similar: Space Sim 32%, Sandbox 17.1%, Procedural Generation 15.5%, Simulation 10.8%, Space 8%
Deep Claims is a space exploration game where you upgrade your ship and equipment in order to mine increasingly valuable and hazardous asteroids. Can you make it to the core?
Why similar: Space Sim 24.8%, Sandbox 20.1%, Simulation 13.5%, Procedural Generation 11.9%, Exploration 10.3%
pan·gaia is a whole-Earth sandbox fresh outta 1999. Sculpt your planet's climate, balance its ecology, design the perfect species for a niche, and maybe, lead them to sapience. Or... hurl meteors at them.
Why similar: Sandbox 27.4%, God Game 25.5% ★, Science 18.7%, Simulation 16.1%, Nature 12%
A hard-sci-fi orbital settlement sim where you mine asteroids, build infrastructure, fight enemy, and operate inside a living solar system shaped by orbital mechanics, limited information, and long-distance logistics.
Why similar: Space Sim 30.7%, Science 16.1%, Sandbox 11.3%, Simulation 11.2%, Space 7%
Lead humanity’s final journey beyond Earth. Launch ships, harness gravity slingshots, and explore distant star systems to make humanity multi-planetary.
Why similar: Space Sim 28.4%, Procedural Generation 12.8%, Simulation 10.6%, Sandbox 10.2%, Science 9.5%
A space sim survival where each decision costs power. Every system drains your dying reactor. Pilot a crippled spacecraft across a real-scale solar system using true orbital mechanics, manage critical systems, scavenge for resources, while you try to uncover why humanity seems to have disappeared.
Why similar: Simulation 22.7%, Space Sim 21.7%, Sandbox 13.5%, Space 12.6%, Exploration 7.6%
Funorbit is a space survival simulation with realistic physics, resource gathering, crafting, and building. Navigate a vast universe using orbital mechanics, encounter drifting meteoroids, and construct space stations to survive.
Why similar: Space Sim 27.4%, Sandbox 16.4%, Science 15.4%, Simulation 11.6%, Space 7.8%
Elysian Eclipse is a Sandbox Evolution Simulator, letting you evolve from an amoeba into a space traveling sentient being. Create your own creatures, buildings and vehicles to conquer procedural planets. Turn the galaxy into your personal playground!
Why similar: God Game 28% ★, Space Sim 21.4%, Sandbox 14.7%, Simulation 9.8%, Space 7.9%
Realistic space flight simulator.
Why similar: Space Sim 26.9%, Science 15.7%, Simulation 12.9%, Sandbox 12.5%, Space 10.1%
The most scientifically accurate space warfare simulator ever made. Now with Steam Workshop!
Why similar: Science 22.3%, Simulation 21.1%, Space Sim 16.6%, Space 14.9%, Realistic 8.9%
Real-time planetary collision sandbox powered by SPH physics: smash planets together and watch the destruction and its aftermath!
Why similar: Space Sim 39.2%, Sandbox 17.1%, Simulation 14.4%, Space 11.9%, Science 6.8%
The top-down space sim. Fly, trade, and fight in a galaxy shaped by simulated history, where production, freight, and war reshape a living economy.
Why similar: Space Sim 37.3%, Simulation 13.8%, Space 11.5%, Sandbox 10.8%, Sci-fi 7.7%
A space puzzle game where you create galaxies. Discover cosmic surprises and over 60 endings. Complete the ending collection to unlock Endless Mode, and see how far your own galaxy can grow.
Why similar: God Game 29.3% ★, Sandbox 15.6%, Space Sim 13%, Simulation 12.6%, Space 10.7%
Shape breathtaking worlds in Terra Firma 2, a vast simulation where your creations evolve through the forces of nature. Sculpt the land, then watch as weather, erosion, and life itself transform your world into a dynamic, living ecosystem- right down to every plant and creature.
Why similar: God Game 31% ★, Sandbox 19.7%, Science 16%, Simulation 14%, Nature 7.1%
Perihelion lets you run your own rocket engine shop. Take over an abandoned desert airfield, design realistic, unique engines, then test them!
Why similar: Space Sim 32.4%, Sandbox 24.7%, Simulation 21.3%, Procedural Generation 7.1%, Space 6.1%
A real-time 3D space simulator and interactive planetarium. Travel to any planet, moon, star, or galaxy and view it from any point in space and time. Accelerate time, land on alien worlds, and expand the universe with community-made add-ons.
Why similar: Space Sim 36.5%, Simulation 23.1%, Science 18.2%, Exploration 8.3%, Space 7.5%
Design custom rockets and master 2D orbital mechanics to navigate a fully simulated solar system. Establish outposts, process local resources to launch interplanetary missions, and manage critical supply lines to keep your colony's workforce alive.
Why similar: Space Sim 29.6%, Sandbox 17.7%, Science 16.8%, Simulation 12.8%, Space 7.2%
Master physics in one compelling physics puzzle after another. Aim the launcher and adjust its power, using your understanding of gravity wells to correctly plot their courses in a variety of challenges. Complete a light-hearted story and then test yourself in the endless Expeditions mode.
Why similar: Space Sim 29.4%, Science 22.1%, Procedural Generation 14.8%, Space 10.8%, Simulation 10.1%
Use the Nimbatus Drone Creator to construct physically simulated drones and try them out in a virtual testing environment. Do you have what it takes to become a drone engineer?
Why similar: Simulation 23.4%, Space Sim 20.4%, Science 16.3%, Sandbox 14.2%, Procedural Generation 7.4%
You find yourself in a distant galaxy full of merchants, diplomats, bandits and powerful factions. Explore unknown galaxies, trade, fight pirates or become one. Uncover mysteries and shape the universe!
Why similar: Space Sim 41.7%, Sandbox 23.2%, Exploration 11.1%, Simulation 9.7%, Sci-fi 5.1%
A simple black hole simulator.
Why similar: Space Sim 28.3%, Sandbox 16%, Science 15.8%, Simulation 11.6%, Procedural Generation 8.6%
A co-op starship bridge sim for 6–25 players. Man a station — helm, weapons, sensors, engineering, comms or command — and no one can fly the ship alone. Communicate, coordinate, and survive together.
Why similar: Space Sim 30.5%, Sandbox 18.8%, Simulation 18.6%, Science 13.4%, Exploration 6.5%
Project Biosphere is a real-time ecosystem sandbox built on a falling-sand simulation. Water flows, heat spreads, fire consumes, plants take root. Ecosystems rise and fall.
Why similar: God Game 32.3% ★, Simulation 22%, Sandbox 17.7%, Science 10.6%, Procedural Generation 7.3%
