60+ similar titles based on shared tags and player behavior. Themes include Simulation, Space, Space Sim, Singleplayer.
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
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!
Gaia Maker
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.
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 27.7%, Idler 22.5%, Sandbox 14.2%, Space 13%, Simulation 6.4%
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 22.3%, Sandbox 21%, Idler 20.3%, Space 10.7%, Simulation 10.3%
This game is a battle simulator. You can freely place hundreds of characters and have them fight automatically. There are three types of characters in total, and you can create up to four teams. You can freely set attack mode and defense mode.
Why similar: Auto Battler 37.7%, Idler 28.9%, Simulation 16%, War 13.8%, Indie 1.6%
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 34.5%, Idler 26.4%, Simulation 12.5%, Sandbox 9.8%, Space 6.9%
Run a galactic pirate syndicate from a single screen. Raid ships, loot cargo, capture crew, and grow a fleet that raids in parallel while you watch. An incremental space-pirate idle game with tactical raids, a reputation-based black market, and a legendary endgame.
Why similar: Auto Battler 25.6%, Space Sim 23.9%, Idler 22.8%, Space 13%, Simulation 4.5%
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 36.5%, Idler 22.6%, Sandbox 20.8%, Casual 8.3%, Space 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 37.2%, Sandbox 18.2%, Simulation 13.9%, Space 9.8%, Casual 9.6%
Expand your territory and watch your numbers soar in Idle Polygon, a minimalist incremental game with RPG depth. Upgrade your Geoms, optimize production to astronomical levels, and test your strength in strategic battles. Experience a mesmerizing world where math and growth collide.
Why similar: Idler 33.2%, Auto Battler 31.9%, Simulation 11.8%, Procedural Generation 10.7%, Minimalist 3.6%
Stunning sphere-themed idle/incremental game. Experience simplicity's beauty.
Why similar: Space Sim 27.1%, Auto Battler 26.4%, Idler 22.4%, Space 9%, Simulation 7.8%
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 48.8%, Space 19.3%, Simulation 13.2%, Sandbox 12.7%, Relaxing 3.3%
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 33.9%, Sandbox 22.1%, Procedural Generation 12.6%, Space 9.3%, Casual 6%
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 35.2%, Sandbox 15.2%, Procedural Generation 15%, Space 14.6%, Simulation 7.3%
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 35.7%, Space 21.3%, Simulation 16.1%, Sandbox 15%, Strategy 7.2%
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 33.5%, Sandbox 23.3%, Space 18.3%, Simulation 15.2%, Casual 6.4%
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 43.5%, Sandbox 25.3%, Simulation 15.2%, Space 11.9%, Indie 3.1%
An idle incremental adventure in space! Mine asteroids while fighting off enemy AI drones. Build your own AI drones, mining lasers, helper drones and more. Collect hundreds of rewards and unlock a variety of features that will help your ultimate goal: making numbers go up (or sometimes down).
Why similar: Idler 27.4%, Space Sim 22.3%, Space 11.2%, Auto Battler 10.4%, Simulation 9%
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 37.6%, Sandbox 22.2%, Simulation 14%, Space 12.9%, Strategy 8.5%
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 36.4%, Sandbox 20.8%, Simulation 14%, Space 10.8%, Procedural Generation 9.2%
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 30.8%, Space 17.3%, Sandbox 17%, Procedural Generation 10.8%, Simulation 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: Space Sim 24.7%, Sandbox 22.8%, Space 21.8%, Simulation 11%, Procedural Generation 10.6%
Real-time planetary collision sandbox powered by SPH physics: smash planets together and watch the destruction and its aftermath!
Why similar: Space Sim 45.1%, Sandbox 18.2%, Space 17.9%, Simulation 9.2%, Casual 5.8%
Welcome to this exciting gaming world, where you will transform into a true space explorer and embark on a magnificent journey of exploring the wonders of the universe!
Why similar: Space Sim 43.8%, Idler 24.5%, Simulation 10.2%, Casual 9.7%, Space 9.6%
Guess which army will win, and watch them fight for your amusement. Behold Battle is a simple auto battler, where you see heroes and monsters fight to the death in randomly generated battles.
Why similar: Auto Battler 34%, Sandbox 18%, War 16.7%, Procedural Generation 12.1%, Casual 4.9%
A story-driven incremental game with idle and auto-battler mechanics, inspired by Factorio logistics, Path of Exile itemization, and Eve Online's economy
Why similar: Auto Battler 24.8%, Space Sim 20.2%, Idler 17.2%, Space 12.4%, War 8.9%
You are neither a general nor a soldier — you are a Stellar Industrialist. To you, peace is nothing but shutdowns and losses. Venture to the frontlines, strip battlefields for wreckage and salvage, turn spoils into resources, and expand your interstellar arms empire.
Why similar: Space Sim 26.1%, War 12.6%, Space 12.3%, Procedural Generation 11.5%, Idler 9.2%
War Tortoise is a new type of hybrid idle game, taking core incremental gameplay and adding new features, idle elements, and advanced graphics. Explore, command and upgrade, equip weapons and armor, level up, unlock abilities, recruit heroes and pilots, and more!
Why similar: Idler 35.6%, Auto Battler 28.2%, War 26%, Strategy 4.9%, Indie 2.6%
Dynamic abstract sandbox universe. Changes and evolves as you do.
Why similar: Space 26.1%, Sandbox 22.8%, Space Sim 19.5%, Procedural Generation 8.2%, Simulation 6.5%
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 36.7%, Space 28%, Sandbox 18.9%, Simulation 10.4%, Indie 2.7%
Harvest energy across the solar system. Build generators on alien worlds, prestige for Dark Energy, and construct a Dyson Sphere around the Sun. Ten planets. Infinite power. One way home.
Why similar: Space Sim 34%, Idler 26.5%, Space 12.3%, Simulation 9%, Casual 4.8%
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: Space 28.4%, Space Sim 24.3%, Sandbox 21.7%, Simulation 13.3%, Strategy 6%
Mine the cosmos in this idle space clicker! Collect rare resources, build powerful equipment, upgrade your ship, and unlock new stellar bodies. Rescue crew, automate mines, and uncover the secrets of the stars.
Why similar: Space Sim 33%, Idler 30.1%, Space 17.6%, Simulation 8.9%, Casual 5.8%
Squirrel Idle Tycoon is a cozy, addictive idle game where you grow a squirrel-powered ice and water business into a thriving empire. Gather resources, hire hardworking squirrels, unlock powerful upgrades, and earn passive income even while you’re offline.
Why similar: Auto Battler 34.3%, Idler 32.8%, Sandbox 18%, Strategy 7.1%, Casual 5.8%
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 29%, Procedural Generation 19.7%, Sandbox 19.5%, Simulation 13.9%, Space 8.5%
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 48.9%, Simulation 17%, Space 11.8%, Procedural Generation 11.3%, Futuristic 5.8%
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 36%, Space 27%, Sandbox 17.1%, Simulation 9.9%, Strategy 5.7%
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 43.6%, Sandbox 19.4%, Space 18.1%, Simulation 8%, Casual 4.6%
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 64.4%, Simulation 19.6%, Space 16%
Spaceship Idle is an idle/incremental 4X grand strategy auto battler where you build your own spaceship and engage in space battles. Research a vast tech tree, equip unique weapons, unlock powerful upgrades, construct bigger and better ships, win epic (auto) battles, and conquer the galaxy!
Why similar: Auto Battler 27.5%, Space Sim 24.2%, Idler 23.7%, Space 13%, Simulation 4.6%
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 56.5%, Space 21.9%, Simulation 21.6%
In "Space Mechanics: Repair | Hiring | Craft" you are the owner of a space repair station in which you have to work. Repair spaceships, get money for it, hire them and create items for sale or for your own purposes.
Why similar: Space Sim 46.4%, Space 16.6%, Idler 15.1%, Simulation 10.9%, Futuristic 7.6%
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 40.8%, Sandbox 23.3%, Simulation 14.7%, Space 10%, Procedural Generation 7%
Start with one machine. Scale to a galaxy-supplying coffee empire. Hire 33 alien workers, survive Rush Hour chaos every 8 minutes, and boss-fight your way to prestige resets that unlock permanent upgrades. Free to play. No paywalls.
Why similar: Idler 31.4%, Space Sim 27.3%, Auto Battler 16.1%, Casual 7%, Futuristic 6.6%
Start with a single soldier, end up with a massive army. Strategize and command your units, or let them grind on their own. Progress through many unique progression systems and conquer all the stages.
Why similar: Auto Battler 33.6%, Idler 25.5%, Sandbox 13.4%, War 9.4%, Strategy 9.2%
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 36.6%, Space 25.7%, Sandbox 13.9%, Simulation 10.4%, Strategy 5.9%
Can you deliver the goods? Board your spaceship and go!
Why similar: Space Sim 41.4%, Sandbox 24.2%, Simulation 16.5%, Casual 10.9%, Sci-fi 2.9%
Dive into sci-fi alien worlds where you wipe out Alien scourge by deconstructing them into parts to upgrade your base and your DECON unit, allowing you to produce higher outputs, more damage, more gains, and JUST MORE. DECON PROTOCOL is an incremental game with idle and clicker mechanics.
Why similar: Auto Battler 36.1%, Idler 29.3%, Simulation 14.7%, Casual 10.1%, Sci-fi 3.8%
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 31.1%, Sandbox 23.2%, Space 16.8%, Procedural Generation 11.8%, Simulation 9.5%
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 54.5%, Space 23.9%, Simulation 11.8%, Strategy 6.6%, Indie 3.2%
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: Space 33.2%, Space Sim 29.2%, Simulation 16.3%, Sandbox 14.6%, Sci-fi 5.1%
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 Sim 29.3%, Space 24.2%, Sandbox 19.5%, Simulation 11.7%, Procedural Generation 10.9%
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 51.7%, Sandbox 26.4%, Space 8.1%, Simulation 6.7%, Futuristic 4.2%
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 31.6%, Space Sim 29.8%, Sandbox 19%, Simulation 10.9%, Strategy 4.5%
A casual space simulation game where you perform orbital manoeuvres on satellites to change their orbit and complete missions.
Why similar: Space Sim 48.3%, Simulation 19.2%, Space 18.1%, Futuristic 4.9%, Casual 3.8%
Space Colonizers is a simulation and strategy idle game of Sci-Fi adventure theme. To explore more planets and meet cute aliens, you have to constantly install parts and upgrade spacecraft.
Why similar: Space Sim 37%, Idler 19.9%, Space 10.8%, Simulation 8.4%, Strategy 5.6%
Complex idle clicker game with infinite possibilities. Prestige, evolving, limits breaking, perks, bosses, income options, ranking and many more features are available!
Why similar: Idler 32.1%, Auto Battler 25.5%, Sandbox 19.3%, Simulation 7.7%, Strategy 4.8%
A retro style space sim where you mine, trade, bounty hunt, pillage, and explore. In this game you choose you own path as you navigate the galaxy while balancing faction alligence and legality of your actions.
Why similar: Space Sim 36.2%, Sandbox 20.6%, War 14.2%, Space 12.3%, Futuristic 6%
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 50.6%, Space 19.2%, Simulation 18.5%, Strategy 9.1%, Indie 1.9%
Fly an Apollo-style lander around various planets, landing to earn points and then redocking with the command module to advance to the next level.
Why similar: Space Sim 35.8%, Simulation 24.1%, Space 16.2%, Casual 15.1%, Indie 7.8%
Spaceflight add-on for Microsoft Flight Simulator X
Why similar: Space Sim 47.5%, Simulation 27.5%, Space 25%
