60+ similar titles based on shared tags and player behavior. Themes include Simulation, Space, Space Sim, Singleplayer.
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.
Deep Claims
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?
Super Starship
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.
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 29.5%, Sandbox 15%, Management 12.5%, Exploration 10.1%, Simulation 9.9%
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 47.7%, Simulation 18.4%, Exploration 8.9%, Futuristic 7.4%, Sci-fi 5.5%
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 50%, Sandbox 17.5%, Exploration 10.9%, Simulation 7.2%, Futuristic 5.3%
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 29.3%, Science 15.2%, Sandbox 12.6%, Simulation 8.5%, Management 8.1%
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 37.1%, Sandbox 14.4%, Simulation 14%, Science 9.5%, Exploration 6.5%
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 41.7%, Sandbox 16.1%, Science 13.4%, Simulation 9.2%, Space 8.4%
Build and manage your own space company. Design missions, launch satellites, and expand your influence across Earth’s orbit.
Why similar: Space Sim 38.6%, Simulation 16.7%, Sandbox 15.1%, Science 9.1%, Management 6.8%
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 56%, Simulation 16.8%, Space 10.2%, Sandbox 10%, Relaxing 3.7%
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 40.1%, Sandbox 12%, Simulation 10.8%, Futuristic 8.9%, Exploration 7.9%
After a mysterious accident you are left are stranded, floating through space on a piece of a space station. Craft supplies and Hubs to expand what is now your home. But be warned space is a dangerous places where one mistake can mean certain death. Can you defy the odds and survive in space?
Why similar: Space Sim 39.7%, Sandbox 14.8%, Simulation 10.7%, Exploration 7.8%, Management 7.2%
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 50.3%, Science 18.6%, Simulation 9.5%, Sandbox 8.4%, Exploration 5.5%
A fantasy space agency management game! Manage your team, design your space ship and research new technology! Reach moons, planets and the void beyond. Can you reach the void? Can you bring Galduen to the void?
Why similar: Space Sim 44.8%, Management 14.3%, Exploration 11%, Space 10.1%, Simulation 9%
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 50.4%, Sandbox 20%, Simulation 19.5%, Space 6.3%, 2D 2.2%
Our goal is to depict the possibilities of space exploration & combat within a realistic environment- to emphasize the "science" in science-fiction. Key features to include: proper orbital mechanics for all objects in space, detailed ship system control, functionality, inter-dependency & damage reaction.
Why similar: Space Sim 68.9%, Simulation 23.2%, Space 7.9%
Captain a space freighter on its perilous voyage to deliver vital supplies to the Parvin Frontier! Select your crew, then lead and command their efforts to manage the ship's navigation, engineering, weapons, and more on the fly as crises and obstacles arise in real time.
Why similar: Space Sim 49.6%, Simulation 13.8%, Management 11.6%, Space 9.1%, Sci-fi 6.1%
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 46.5%, Simulation 16.5%, Science 12.8%, Space 12%, Exploration 10.2%
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 41%, Simulation 17.6%, Sandbox 16.1%, Management 8.5%, Space 5.6%
Real-time planetary collision sandbox powered by SPH physics: smash planets together and watch the destruction and its aftermath!
Why similar: Space Sim 50.6%, Sandbox 13.9%, Simulation 11.5%, Space 9.2%, Science 5.1%
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 41.1%, Sandbox 12.1%, Simulation 9.5%, Space 7.8%, Sci-fi 7.7%
SPACE SEX SHOP is an 18+ store simulator where you have to open the first adult store in space 🚀✨. Manage your inventory, study demand among different alien races 👽🤖, develop your station, and step by step turn a small trading module into a galactic empire 👑.
Why similar: Space Sim 46.3%, Simulation 17.9%, Sandbox 15.7%, Management 7.9%, Space 6.2%
A casual space simulation game where you perform orbital manoeuvres on satellites to change their orbit and complete missions.
Why similar: Space Sim 50.3%, Simulation 22.1%, Space 8.6%, Futuristic 6.8%, Sci-fi 6.6%
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 44.9%, Simulation 18.6%, Sandbox 15%, Casual 6.8%, Exploration 6.3%
The existence of all mankind is under threat. You are the only hope!
Why similar: Space Sim 40%, Science 15.6%, Simulation 14.7%, Space 10%, Management 7.7%
A first person building game where every problem is solved with pipes.
Why similar: Space Sim 45.7%, Sandbox 17.8%, Simulation 13.2%, Exploration 8.6%, Futuristic 6.3%
Take control of your own starship and blaze your trail in an ever-changing galaxy. Master the arts of combat, mining and trade or venture out into the unknown across a 1:1 scale universe.
Why similar: Space Sim 51%, Space 10.1%, Massively Multiplayer 8.9%, Simulation 7.6%, Exploration 7.3%
MOSS Becoming Human is an AI science game where players develop and deploy AI agents to build a Martian civilization. Customize, evolve, and test AI in various modes, shaping diverse outcomes. Agents can also interact with the real world, including social platforms like X.
Why similar: Space Sim 44.8%, Simulation 16.9%, Sandbox 15.3%, Exploration 6.1%, Massively Multiplayer 5.6%
Can you deliver the goods? Board your spaceship and go!
Why similar: Space Sim 45.2%, Simulation 20%, Sandbox 18.1%, Casual 7%, Sci-fi 6.1%
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 33%, Simulation 16.8%, Science 14.9%, Sandbox 12%, Space 7.6%
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 48.5%, Simulation 19.1%, Science 13.9%, Exploration 9.1%, Space 5.9%
Caught in the middle of a violent conflict on the fringe of the galaxy — your ability to survive will depend on your piloting skills and combat savvy as a mercenary space fighter. But, as you explore the vastly detailed world of Tachyon: The Fringe, you will often find that the most powerful weapon on your ship is in your head.
Why similar: Space Sim 62.4%, Simulation 26.5%, Space 11.1%
Satellite Command is a realistic, relaxing astrophysics simulator. Complete contracts with real data, launch and take control of ever more powerful Satellites, research advanced technology and build your Space Agency!
Why similar: Space Sim 32.3%, Science 15%, Sandbox 13.1%, Simulation 9.2%, Management 8.1%
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 43.9%, Sandbox 20.7%, Simulation 17.5%, Management 7.3%, Space 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 32%, Sandbox 14.1%, Science 13.4%, Sci-fi 7.9%, Space 7.8%
Super Space Frogs is a 2D physics-based rocket game. Design, Deploy, and Fly awesome rockets. Unlock new technology to build bigger and better ships. Explore the solar system and unlocks the mysteries it holds.
Why similar: Space Sim 41.2%, Sandbox 12%, Science 10.4%, Simulation 9.9%, Exploration 7.9%
Survive the void in Null Hørizøn. Trade, fight, and explore a retro-futuristic 3D galaxy with 2D sprites. Upgrade your ship, smuggle goods, and travel across the universe. Tactical Real-Time combat meets Grid-based exploration in this atmospheric space sim. The Null Hørizøn calls, Captain.
Why similar: Space Sim 46%, Sandbox 13.8%, Simulation 13.8%, Exploration 7.9%, Management 6.9%
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 37.8%, Science 14.6%, Sandbox 10.8%, Space 7.5%, Exploration 7%
NOW HIRING: Station Manager! Run a totally-legit* space biz in Sector 7-G. Farm alien crops, refuel shady ships, and sell dangerously edible snacks. Perks: gloves, oxygen insurance**, and mild relevance. No exp needed. Apply today! *Legit status not valid in all sectors. **Terms apply.
Why similar: Space Sim 48.4%, Simulation 14.4%, Sandbox 13.8%, Management 11.6%, Sci-fi 5.4%
The story takes place in the distant future. You will play a captain of a star ship and go into deep space. You need to manage your resources carefully. In the game, you can investigate the outliers of various planets, discover the wonders of the universe or learn the stories of lost civilizations.
Why similar: Space Sim 53.4%, Space 11.9%, Futuristic 11.1%, Exploration 10.3%, Simulation 4.8%
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 57.1%, Simulation 23.4%, Exploration 10.6%, Space 8.9%
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 32%, Sandbox 16.5%, Simulation 15.8%, Science 10.6%, Space 8.6%
You were promised a hero’s journey. You got a vacuum cleaner. Team up with 3 friends in this chaotic, physics-based co-op game. Build your space station out of "recycled" trash, dodge orbital debris, and try not to burn up in the atmosphere. In space, no one can hear you clean.
Why similar: Space Sim 48.8%, Simulation 18.7%, Science 14.1%, Casual 6.8%, Space 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 41.2%, Simulation 20.8%, Sandbox 19.6%, Space 10.4%, Casual 4.6%
A small quick game about building a factory to launch planets into a solar system! Grow your base and increase production to make the ultimate factory for launching planets!
Why similar: Space Sim 26.4%, Sandbox 16.4%, Science 11.3%, Simulation 8.6%, Futuristic 8.5%
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 44.6%, Sandbox 16.5%, Exploration 8.7%, Futuristic 8.5%, Space 6.8%
Weird Wormholes is a casual game about traveling through wormholes to try and get back home. Use your ship to mine planets for resources and process these resources into components to enable your travels.
Why similar: Space Sim 46.9%, Sandbox 18.3%, Exploration 8.8%, Management 7.2%, Casual 6.2%
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 45.7%, Simulation 18.8%, Sandbox 18.4%, Space 7.2%, Sci-fi 6.2%
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 44%, Simulation 22%, Sandbox 12.6%, Space 12.1%, Sci-fi 9.4%
Explore a precisely recreated lunar surface built from real data and a JAXA-backed simulation.
Why similar: Space Sim 57.6%, Simulation 21.4%, Exploration 11.1%, Space 9.9%
An orbital mashup of physics, puzzles, and business simulation! Navigate packages through a galaxy using gravity and tools like slingshots, mass drivers, and cannons. Create your own levels & share them with the world via Steam Workshop. The ultimate space delivery challenge awaits!
Why similar: Space Sim 38.7%, Sandbox 15.7%, Simulation 12%, Management 10.4%, Sci-fi 8.2%
You are a Scraponaut, create your own spaceplane with unique parts each affecting the way your plane behaves. Collect scrap while exploring procedurally generated islands, unlock and discover unique new parts to upgrade your spaceplane.
Why similar: Space Sim 43.6%, Sandbox 15.1%, Simulation 11.2%, Space 8.4%, Sci-fi 6.8%
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 38.7%, Sandbox 11.1%, Management 10.5%, Simulation 9.1%, Exploration 8.3%
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 44.6%, Sandbox 15%, Science 12%, Simulation 11.1%, Exploration 7.2%
This digital experience doesn’t ask you for much, it just wants you to come as you are. Bring your favorite edibles, mushrooms, music, and Relax. Consider using it for meditation and reflection. A title perfect for those nights when you want to float off into space and forget about things.
Why similar: Space Sim 36.4%, Science 17.9%, Sandbox 14.8%, Exploration 8.5%, Space 7.9%
We have built a mini universe with real physics basis, simulation and imagination. The game uses realistic environments and models to tell a story of a mini universe.
Why similar: Space Sim 50.5%, Sandbox 15.3%, Simulation 10.3%, Space 9.7%, Sci-fi 8.9%
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 45.2%, Simulation 18.2%, Sandbox 8.8%, Sci-fi 7.7%, Management 6.2%
Rionag: Survey Fleet is a top-down starship builder and logistics game where it's your job to balance the needs of the crews with cutting-edge equipment on board. Unlock tech that adds new capabilities for your ships to go through hazardous environments, enabling you to explore new worlds.
Why similar: Space Sim 41.8%, Science 15.7%, Simulation 9.4%, Management 8.1%, Exploration 7.5%
Build and upgrade your personal ship to travel around a strange planet.
Why similar: Space Sim 47.2%, Simulation 17.9%, Sci-fi 9%, Space 9%, Management 7.4%
A classic fantasy MMORPG powered by uMMORPG—discover dungeons, fight powerful creatures, forge rare equipment, and shape a living world alongside hundreds of players.
Why similar: Space Sim 46%, Science 19.8%, Simulation 11.8%, Sci-fi 9.1%, Space 8.8%
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 35.5%, Science 16.8%, Sandbox 16.5%, Space 12.2%, Simulation 12%
