60+ similar titles based on shared tags and player behavior. Themes include Simulation, Space Sim, Space, Singleplayer.
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.
Planet Architect
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.
Space Sim Tycoon
Space Sim Tycoon – A sandbox transportation tycoon game where you can explore forbidden planets, gather resources, craft goods, and establish routes to manage your space empire.
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.
Why similar: Space Sim 21.2%, Procedural Generation 18.4%, Simulation 18.3%, Sandbox 15.5%, Science 8.7%
Space Sim Tycoon – A sandbox transportation tycoon game where you can explore forbidden planets, gather resources, craft goods, and establish routes to manage your space empire.
Why similar: Space Sim 27.9%, Simulation 21.7%, Sandbox 17.5%, Procedural Generation 11.1%, Sci-fi 8.8%
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 28.3%, Sandbox 21.8%, Simulation 20.8%, Procedural Generation 7.7%, Space 5.2%
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 29.9%, Simulation 21.1%, Sandbox 18.6%, Procedural Generation 8%, Sci-fi 7.4%
X-Tension is the eagerly awaited expansion pack to X: Beyond the Frontier. The expansion is not limited by a linear plot line but makes use of new ways to expand your empire. You can now take part in missions that are offered to you throughout the game.
Why similar: Space Sim 28.7%, Simulation 26%, Sci-fi 14.3%, Sandbox 13.2%, Space 12.8%
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 28.7%, Procedural Generation 18.9%, Simulation 14.8%, Sandbox 13.6%, Space 9.3%
The existence of all mankind is under threat. You are the only hope!
Why similar: Space Sim 27.5%, Simulation 18.3%, Science 13%, Procedural Generation 11.2%, Space 11.1%
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 36.7%, Simulation 25.7%, Procedural Generation 13.3%, Sci-fi 9.9%, Atmospheric 6.9%
Our Empire is spreading thin through the galaxy. Your responsibility is to assist your comrades on our newly founded colony. Keep your station operational at all cost. Your pivotal role may shape destiny. And don't forget: Humanity Above All!
Why similar: Space Sim 24.1%, Aliens 10.9%, Simulation 10.2%, Sci-fi 9.9%, Science 9.9%
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 28.7%, Procedural Generation 19.3%, Sandbox 13.6%, Sci-fi 12.5%, Simulation 12%
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 35.8%, Simulation 25.1%, Sandbox 22.9%, Space 7.7%, Physics 6.7%
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 23.6%, Space Sim 20.2%, Sandbox 12.7%, Space 11.4%, Perma Death 9.5%
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 24.6%, Sandbox 14.9%, Procedural Generation 13.7%, Simulation 12.8%, Space 10.3%
Can you deliver the goods? Board your spaceship and go!
Why similar: Space Sim 31.4%, Simulation 25.2%, Sandbox 20.2%, Aliens 12.2%, Sci-fi 9.9%
Draw trade lanes across a single seamless universe drawn in symbols and lines, and let your ships mine, haul and sell on their own. Chase the materials you lack and the regions you want, push your network outward, and hold the lanes against pirates.
Why similar: Space Sim 27%, Sandbox 19.1%, Procedural Generation 17.3%, Simulation 13.6%, Space 10%
Explore the beauty of math with this real-time terrain engine. Control 13 generation variables to see exactly how algorithms shape landscapes.
Why similar: Procedural Generation 36.4%, Simulation 28%, Sandbox 22.9%, Nature 7.8%, Atmospheric 4.8%
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 35.6%, Simulation 18.7%, Sandbox 16.3%, Sci-fi 9.6%, Science 8.5%
A "small" universe simulation, where you play as a black hole and try to absorb the whole universe. You decide the size and shape of the universe. Could also be used as a less meaningful CPU benchmark.
Why similar: Space Sim 41.2%, Simulation 22.4%, Space 12.1%, Sandbox 11.8%, Atmospheric 7.2%
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 32.2%, Simulation 24.2%, Sandbox 17.4%, Space 11.6%, Sci-fi 6.7%
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.
Why similar: Space Sim 24.7%, Procedural Generation 13.6%, Aliens 12%, Sci-fi 11.2%, Choices Matter 8.2%
Build a retro-industrial space program, manage your launch base, assemble and upgrade the Columbiad, then manually guide each mission through atmospheric ascent, orbital insertion, lunar transfer, and recovery in a low-poly spaceflight management adventure.
Why similar: Space Sim 29.1%, Simulation 14.7%, Aliens 14.5%, Space 10.7%, Sci-fi 9.7%
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. Play how you like in this open world space-sim developed by Pixelfactor.
Why similar: Space Sim 31.3%, Simulation 23.4%, Sandbox 20.3%, Sci-fi 9.9%, Space 8%
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 20.4%, Simulation 18.2%, Procedural Generation 13.8%, Space 13.4%
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 23.5%, Simulation 21.7%, Sandbox 13.8%, Science 12.9%, Sci-fi 10.9%
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 22.3%, Procedural Generation 15.1%, Sci-fi 12.3%, Science 11.2%, Sandbox 9.8%
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 27.3%, Procedural Generation 15.2%, Simulation 11.4%, Sandbox 9.9%, Sci-fi 8.5%
Planets, aliens, resources, upgrades, caves, mapping & documenting star systems ... seek a new home for the human race. An all-inclusive (admittedly janky) procedural space-sim made by solo developer Schmidt Workshops.
Why similar: Space Sim 27.4%, Procedural Generation 18.3%, Sandbox 12.3%, Sci-fi 9.6%, Space 9%
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 23%, Sandbox 16.1%, Sci-fi 13.1%, Procedural Generation 12.7%, Science 11.7%
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.
Why similar: Sci-fi 19.6%, Procedural Generation 19.3%, Sandbox 17.9%, Simulation 17.5%, Resource Management 8.3%
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.
Why similar: Simulation 25.8%, Space Sim 22.9%, Space 19.4%, Sci-fi 17.6%, Sandbox 12.6%
Will you make the grade and save the planet? Become a cadet on your first day of training in this 3rd person space combat simulator.
Why similar: Simulation 41.7%, Space Sim 31.8%, Sci-fi 14.7%, Space 11.8%
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 23.3%, Sandbox 16.2%, Science 14.7%, Simulation 12.3%, Sci-fi 10.8%
Explore a unique, procedurally generated galaxy filled with alien artifacts and resources to extract and exploit. Mine asteroids, harvest nebula, pilot unique ships and find new and strange things in the void between stars as you struggle to survive long enough to find another home.
Why similar: Space Sim 27.1%, Simulation 12.8%, Aliens 12.6%, Procedural Generation 10.5%, Science 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 25.3%, Space Sim 19.7%, Sandbox 13.8%, Science 11.1%, Procedural Generation 8.8%
Gravitation is a sandbox simulation set in the vastness of the cosmos and built on the laws of real-world physics.
Why similar: Space Sim 33.7%, Simulation 25.3%, Sandbox 18.1%, Strategy 6.7%, Space 6.6%
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 28.9%, Procedural Generation 18%, Science 15.3%, Simulation 11.1%, Space 10.3%
Build your space station, design your own ships, and explore relaxed sci-fi sectors in Astrosphere. Gather resources, research new technologies, and shape your journey through the cosmos at your own pace.
Why similar: Space Sim 28.1%, Procedural Generation 13.7%, Sandbox 12.9%, Simulation 11.9%, Sci-fi 11.1%
Watch as stars battle for control of a simple simulated galaxy. Each star belongs to a faction, indicated by its color, and combat happens automatically between neighboring stars. Your role is to observe the dynamic battlefield as stars change ownership.
Why similar: Space Sim 29.2%, Sandbox 19.5%, Procedural Generation 19.5%, Simulation 13.7%, Space 8.6%
Simulate the physics of the Universe on a large scale and create stunning visuals. Play with intergalactic interactions, smash planets together and even create the Big Bang itself!
Why similar: Space Sim 30.2%, Simulation 27.5%, Sandbox 23%, Space 12.3%, Physics 6%
Astrox Imperium is a relaxing space game where you fly around a generated universe. Mining, Fighting, Building, Exploring, and Surviving. What makes this game unique? You have complete control of how it plays. A robust sandbox and lots of MOD tools. Make it your game, and play it your own way.
Why similar: Space Sim 30.8%, Simulation 18.1%, Space 17.8%, Sandbox 17.4%, Sci-fi 8.8%
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.
Why similar: Simulation 22.6%, Space Sim 20.5%, Sandbox 20.2%, Space 18.2%, Sci-fi 12.2%
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 33.6%, Sandbox 20.7%, Simulation 13.5%, Science 13%, Space 10.9%
The most scientifically accurate space warfare simulator ever made. Now with Steam Workshop!
Why similar: Simulation 24%, Space Sim 16.8%, Science 16%, Space 14.7%, Sci-fi 14.5%
Scavenger SV-4 is a highly replayable atmospheric first-person science fiction game. Part simulator, part roguelike, it has elements of action, combat, resource management, and a dash of horror. It is not quite like any game you have played before.
Why similar: Simulation 18.3%, Procedural Generation 17.3%, Sci-fi 13.8%, Perma Death 13.6%, Space 13.5%
In celebration of the 25 yr anniversary of the first release, this compendium contains all 4 games in the Battlecruiser 3000AD series which was first released in 1996.
Why similar: Space Sim 31.6%, Simulation 15.4%, Sandbox 15.1%, Sci-fi 13.8%, Aliens 10.3%
In the midst of a seemingly hopeless war among the stars, take control of highly customizable spacefighters to experience classic space combat action throughout a story-driven campaign.
Why similar: Space Sim 45.3%, Sci-fi 17.2%, Simulation 15.5%, Space 13.5%, Atmospheric 7.1%
Take the reins of the newly founded Office of Interstellar Production, annex newly discovered star systems, mine resources and refine quality components to build mighty warships to deliver to the unceasing needs of the Navy. A chill sandbox resource management game.
Why similar: Space Sim 32.7%, Simulation 23.9%, Sci-fi 13%, Sandbox 10.2%, Procedural Generation 8.5%
A simple black hole simulator.
Why similar: Space Sim 28.1%, Sandbox 16.2%, Simulation 13%, Science 11.1%, Procedural Generation 10.6%
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 25.5%, Sandbox 19%, Simulation 15.6%, Science 14.7%, Space 14.2%
Real-time planetary collision sandbox powered by SPH physics: smash planets together and watch the destruction and its aftermath!
Why similar: Space Sim 39.4%, Sandbox 17.4%, Simulation 16.2%, Space 11.6%, Physics 5.5%
Welcome to your new career as a gas station attendant in the deepest, darkest corner of space! Serve adorable ships, count your cash, and expand your diesel empire. It's a simple, satisfying job. Just... ignore the whispers in the vents. Everything is fine. Probably.
Why similar: Space Sim 38.7%, Simulation 26.5%, Sci-fi 11.8%, Space 8%, Atmospheric 7.6%
Step into the grease-stained boots of a debt-ridden Patcher in a gritty industrial space station. Diagnose critical failures, strip panels with your automatic vortex drill, and replace complex components to bring massive ships back to life. Restore power, clear the smoke, and pay off your debt.
Why similar: Simulation 27.4%, Space Sim 20.9%, Procedural Generation 15.5%, Sci-fi 9.7%, Space 7%
A casual space simulation game where you perform orbital manoeuvres on satellites to change their orbit and complete missions.
Why similar: Space Sim 39%, Simulation 31.1%, Sci-fi 11.9%, Space 10.8%, Physics 7.3%
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 28.3%, Procedural Generation 15%, Science 13.3%, Sandbox 12.9%, Sci-fi 10.5%
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 31.6%, Simulation 13%, Sandbox 11.8%, Science 11.7%, Sci-fi 8.7%
Fly a rented corporate vessel in a procedurally-generated universe, navigate risky routes, profit from changing markets before the opportunity disappears and you lose it all. Take jobs, navigate the markets, smuggle, lie. Do everything in order to keep flying.
Why similar: Space Sim 42%, Simulation 28.1%, Sci-fi 9.5%, Procedural Generation 7.7%, Space 6.3%
Mine asteroids, trade minerals and chart an endless, procedurally generated galaxy in a relaxed 2D space sim. Then pin it to your desktop as a live wallpaper: your ship keeps flying, mining and discovering while you work
Why similar: Space Sim 36.4%, Simulation 24.4%, Procedural Generation 9.4%, Sci-fi 9%, Space 5.4%
Biovoid is a creature-building roguelike game where you slay hordes of hostile aliens. Combine a variety of cells and mutations to create game-breaking builds and evolve from a fragile hatchling to a deadly predator.
Why similar: Procedural Generation 19.7%, Sandbox 18.4%, Perma Death 15.8%, Simulation 14.2%, Aliens 11.7%
A generation ship roguelite where no one aboard survives the journey. Travel the stars one world at a time as each generation shapes your ship and writes a new chapter in the chronicle.
Why similar: Procedural Generation 21.6%, Perma Death 18.3%, Sci-fi 15.2%, Space 12.8%, Choices Matter 10.7%
Worlds Of The Future is a sci-fi open world, action/adventure game. Explore a fully seamless solar system full of adventures, mysteries and colorful characters. Build your space delivery company, climb the company rankings and become a legend among the worlds!
Why similar: Space Sim 33.4%, Sandbox 19.8%, Procedural Generation 14.7%, Sci-fi 10.3%, Space 8.3%
