60+ similar titles based on shared tags and player behavior. Themes include Space, Simulation, Space Sim, Sandbox.
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.
Galactic Simulator 3
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.
Celestial Front - Galactic War Sim
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.
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 24.8%, Idler 20.5%, Space 13.7%, Sandbox 11.2%, Procedural Generation 9.8%
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 24.4%, Idler 20.9%, Sandbox 15.5%, Space 12.2%, Procedural Generation 9.7%
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 31.6%, Idler 22.5%, Simulation 11.1%, Space 8%, Top-Down 6.3%
Galactic Simulator is a clicker game based on the Fermi Paradox and the Great Filter theory. Players can simulate the evolution of celestial bodies and civilizations in the galaxy from an observer's perspective. The game supports multiplayer mode. Create a unique galaxy with friends!
Why similar: Space Sim 25.3%, Idler 21.9%, Space 15.1%, Sandbox 13.6%, Strategy 6.3%
Feed a hungry black hole. Haul debris into the void, devour whole biomes, then collapse everything in a Singularity to grow stronger forever. A cosmic idle game about gravity, greed, and infinite prestige.
Why similar: Idler 32.8%, Sandbox 19.5%, Space 18.5%, Procedural Generation 10.1%, Relaxing 6.5%
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 31.3%, Idler 25.7%, Simulation 12%, Sandbox 9.4%, Space 7.9%
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 33.2%, Idler 22%, Sandbox 19.9%, Top-Down 7.2%, Space 6.9%
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 43.6%, Space 21.9%, Simulation 12.4%, Sandbox 11.9%, Relaxing 7.8%
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 27%, Space 19.3%, Sandbox 15.6%, Procedural Generation 9%, Relaxing 8%
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 32.3%, Space 24.5%, Simulation 15.3%, Sandbox 14.2%, Strategy 13%
Dynamic abstract sandbox universe. Changes and evolves as you do.
Why similar: Space 29.1%, Sandbox 20.8%, Space Sim 17.1%, Relaxing 7.4%, Procedural Generation 6.7%
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 33.8%, Sandbox 20.9%, Strategy 15.3%, Space 14.8%, Simulation 13.2%
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 35.3%, Sandbox 18.1%, Strategy 16.3%, Simulation 13.9%, Space 11.8%
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 32.7%, Sandbox 19.6%, Simulation 13.3%, Space 12.4%, Strategy 10.3%
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 40.2%, Sandbox 24.5%, Simulation 14.8%, Space 14.7%, 2D 3.1%
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 34.9%, Sandbox 20.8%, Simulation 12.9%, Space 9.8%, Top-Down 7.8%
This is an RPG idle fighting game that does not bloat numbers. In the early stage, you only need to use the highest-level characters and equipment without thinking. But in the later stage, you will encounter some setbacks. At this time, you need to study those low-level characters and equipment.
Why similar: Idler 34.7%, Sandbox 22.1%, Space 11.4%, Procedural Generation 11.3%, Strategy 5.3%
Build a colony on an alien planet. Supply settlers, defend against meteors, upgrade your base, develop your economy, and fight for survival.
Why similar: Space Sim 32.4%, Sandbox 16.7%, Strategy 15.2%, Simulation 13.5%, Space 10.5%
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: Space 32.5%, Space Sim 21.5%, Sandbox 20.2%, Simulation 12.4%, Strategy 10.7%
Build an orbital factory and create a new star. Arrange neighboring machines to boost production, time reactor pulses, and automate your growing foundry. Rebuild for permanent upgrades in a cosmic incremental game.
Why similar: Space Sim 39.3%, Idler 25.7%, Simulation 14.8%, Space 11.8%, Resource Management 3.9%
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: Space Sim 22.4%, Sandbox 22.1%, Idler 21.8%, Space 13.7%, Simulation 10.9%
Design your own solar systems and enjoy watching them orbit, collide and smash each other in a cosmic dance!
Why similar: Idler 26.7%, Space Sim 22%, Sandbox 18.2%, Space 13.5%, Procedural Generation 9.1%
A dead god drifts in the dark. Build a salvage fleet that carves it apart cell by cell, and watch a colossal carcass melt into a storm of flying debris and climbing numbers. Strip it to the bone then evolve and start again on something bigger.
Why similar: Space Sim 35.2%, Idler 25.3%, Simulation 12%, Space 10.7%, Strategy 8.2%
X3: Reunion continues the epic space saga, blending deep space trading and intense real-time combat. Explore a vast universe, establish your empire, and shape the new frontier. With enhanced graphics and intricate economies, it's a journey of strategy, simulation, and interstellar intrigue.
Why similar: Space Sim 32.4%, Space 31%, Sandbox 16.2%, Strategy 10.3%, Simulation 9.4%
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 32.5%, Sandbox 23.7%, Space 22.6%, Simulation 15.5%, 2D 3.5%
Build an industrial base among the stars. Gather resources, manufacture ships, research technologies, and explore unknown regions of space. The core gameplay can be played offline, while alliance features add online missions and cooperative construction.
Why similar: Space Sim 37.8%, Idler 25.8%, Strategy 10.1%, Simulation 8.5%, Space 6.8%
Take to the stars and explore the solar system. Master the orbital mechanics of N-body physics. Plot a careful course to complete your mission.
Why similar: Space Sim 43.9%, Space 21.3%, Simulation 16.7%, Strategy 15.8%, Indie 1.7%
Board your ship and push the boundaries of space exploration in this contemplative space incremental. Gather resources, develop your technology, and travel from the Moon to the edge of the solar system to answer a mysterious signal from the stars.
Why similar: Space Sim 30.1%, Idler 28.9%, Space 18.7%, Simulation 8.4%, Resource Management 4.9%
Trade your wares and eliminate the competition in a cutthroat world. Buy new ships and stations to mine and haul resources. Explore the vast emptiness of space.
Why similar: Space Sim 48%, Space 26.8%, Strategy 11.3%, Simulation 11%, Indie 2.8%
Harvest crystallized time from parallel universes where people waste their lives playing idle games. Build extractors, automate logistics networks, and research new technology to fuel Bill Tyme's time machine in this factory-building incremental game.
Why similar: Idler 29%, Sandbox 17.3%, Strategy 14.3%, Simulation 13.1%, Relaxing 7.1%
Build stations above picky planets, match modules to what the locals actually want, and grow a trade empire that earns while you're away. Court the factions or cross them on the road from your first rattling fusion can to a megastructure that tames a black hole.
Why similar: Space Sim 34.5%, Idler 20.9%, Strategy 14.9%, Simulation 12.7%, Space 7.4%
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: Space 26.4%, Space Sim 23.5%, Sandbox 22.7%, Simulation 11%, Procedural Generation 9.5%
A relaxing game about space exploration that can be played full screen or at the bottom of your screen. Trade, fight, mine and salvage your way through a procedurally generated galaxy. Let the game idle while your autopilot handles business and builds your fortune.
Why similar: Space Sim 23%, Idler 18.8%, Space 14%, Sandbox 13.5%, Procedural Generation 9.7%
Slay The Stars is an incremental game where you speed up orbiting planets, earn points, and build your own star system. Add planets, asteroid belts, and comets, feed the star, grow the system, and destroy everything when the time comes.
Why similar: Idler 27.1%, Space Sim 23.2%, Space 16.7%, Relaxing 8.8%, Strategy 7.7%
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 35.2%, Sandbox 26%, Simulation 13.6%, Space 11%, Procedural Generation 5.7%
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 34.8%, Space 18.4%, Sandbox 15.8%, Procedural Generation 14%, Simulation 7.6%
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.
Why similar: Space Sim 33.4%, Space 29.4%, Sandbox 13.1%, Strategy 10.6%, Simulation 9.8%
In 方块战舰：Module Warship, you command the fleet and design the ships.This 2D space sandbox rejects pre-set hulls, offering extreme DIY freedom instead. Assemble dozens of functional modules to craft your ultimate warship from scratch, then lead your custom fleet to conquer the unknown depths of space.
Why similar: Space Sim 28.5%, Idler 16.2%, Sandbox 13.9%, Strategy 12.6%, Simulation 10.6%
Below the Crust is an incremental mining game about digging through layered planetary crusts, optimizing efficiency, and steadily progressing deeper over time.
Why similar: Space Sim 26.9%, Idler 25.2%, Procedural Generation 13.8%, Space 13.2%, Strategy 9%
You start with $1,000 and a candlestick chart. 1,000 coins, whales who plan pump-and-dumps, and a retail crowd that always buys the top. Every order you place moves the price. Trade, take leverage, run PR campaigns, launch your own token — and decide what your reputation is worth.
Why similar: Idler 31.4%, Sandbox 25.1%, Strategy 21.5%, Simulation 19.3%, Indie 1.9%
Master spaceflight and progress through realistic orbital mechanics challenges of increasing complexity. Plot maneuvers to coordinate transfer orbits, gravity assists, and high-stakes rendezvous.
Why similar: Space Sim 26.5%, Space 24.8%, Simulation 15.7%, Top-Down 11.9%, Sandbox 11.5%
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 34.1%, Space 33.7%, Sandbox 18.4%, Simulation 10.5%, Indie 2.5%
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 27%, Sandbox 19.1%, Procedural Generation 17.3%, Simulation 13.6%, Space 10%
Deep Space Remnant is a space survival base-building simulator: build your station, gather resources with ships, research technology, and strengthen shields to survive escalating cosmic radiation.
Why similar: Space Sim 37.4%, Strategy 19.6%, Space 15.9%, Simulation 14.4%, Sandbox 12%
Build and manage your own space company. Design missions, launch satellites, and expand your influence across Earth’s orbit.
Why similar: Space Sim 34.6%, Sandbox 20.8%, Strategy 16.1%, Simulation 14.2%, Space 11.4%
It is the year 2938. The long wished-for encounter of the X Universe and the Earth holds both joy and sorrow for the people. Despite flourishing trade, the clash of the diverse races, cultures and life forms creates new tensions, mistrust and open conflict that need to be overcome!
Why similar: Space 36.1%, Space Sim 26.9%, Sandbox 17.9%, Simulation 10.3%, Strategy 8.1%
A short incremental game where you control a black hole. Devour matter, unlock upgrades, and combine talents to grow stronger. Automate your gains and push toward the ultimate Collapse.
Why similar: Idler 32.9%, Space Sim 24.2%, Space 20.4%, Simulation 7.4%, Relaxing 5.6%
Train rats in a series of mazes and help them improve their stats. Submit rats for grant money and use it to upgrade your lab with new tools and buy new rats with powerful abilities! These new rats have such amazing potential. How smart are these rats becoming?
Why similar: Idler 32.1%, Strategy 18.9%, Simulation 16.9%, Top-Down 11.2%, Procedural Generation 9.8%
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 52.8%, Space 25.9%, Simulation 21.3%
Real-time planetary collision sandbox powered by SPH physics: smash planets together and watch the destruction and its aftermath!
Why similar: Space Sim 44.7%, Space 22.5%, Sandbox 18.8%, Simulation 9.6%, Relaxing 2.7%
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 61.1%, Simulation 19.6%, Space 19.3%
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 39.4%, Space 24.3%, Sandbox 20.4%, Simulation 15.5%, Singleplayer 0.4%
Increbouncer is a short incremental ball game where you launch balls, earn two different currencies from wall bounces and ball collisions, unlock new balls, and level up a skill tree to maximize your income.
Why similar: Idler 36%, Sandbox 23.3%, Strategy 14.5%, Relaxing 6.7%, Simulation 6.2%
Unending Galaxy is a unique space-sim in which you can fill any role from pirate or trader to the leader of a large galactic empire.
Why similar: Space Sim 22.8%, Space 20.7%, Strategy 18.7%, Sandbox 14.8%, Simulation 14.7%
Calling Home is an exciting sci-fi simulation resource management game that draws heavily from games in the factory-building and exploration genres, providing a thrilling mix of building your base, researching, factory management, puzzle solving, exploration, and resource gathering.
Why similar: Space Sim 36%, Sandbox 20.7%, Strategy 11.8%, Simulation 9%, Top-Down 8.6%
X²: The Threat is of a new generation of space simulator games, you play the role of Julian Gardna who continues the story set by X: Beyond The Frontier. The updated graphics engine gives the universe a fresher feel with newly designed ships and stations adding to the complexity of the universe.
Why similar: Space 33.2%, Space Sim 27.8%, Sandbox 15.1%, Strategy 13.2%, Simulation 10%
Exiled to a deep space mining sector, you are left with a crappy ship, a laser, and a small mining beam. It is up to you to survive by working your way through the galaxy. Mine asteroids, refine and trade the ore, buy upgrades for your ship, hunt pirates... you get it.
Why similar: Space 28.6%, Space Sim 27.3%, Sandbox 19%, Simulation 11.4%, Procedural Generation 9.6%
Ever wanted a Dyson swarm of your own? Now you can have one with just a few clicks! Manage a solar empire, produce bots which will make solar panels for you. Send your panels to the sun to generate energy and sell that energy to make money which you can spend on even more bots!
Why similar: Idler 39.7%, Space 23.3%, Strategy 16.6%, Simulation 10.2%, 2D 4.4%
Casual puzzle game on a cosmic scale. Build stars, planets and other cosmic objects. Evolve your cosmos using abilities of the stars from stellar winds to supernova.
Why similar: Space 27.9%, Sandbox 24.1%, Space Sim 23.4%, Top-Down 12.5%, Relaxing 5.3%
The Human Race had advanced to the point where we could travel among the stars, we developed giant automated machines to help us colonise other worlds, but there was a fault in their programming and they turned and attacked. Forcing us to lay a trap to protect Earth and exiling the Human race to stay on Earth once again.
Why similar: Space 29.9%, Space Sim 29.3%, Simulation 14.6%, Sandbox 13.3%, Strategy 12.1%
