60+ similar titles based on shared tags and player behavior. Themes include Space, Simulation, Space Sim, Indie.
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!
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.
Stellar Harvest
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.
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 23.1%, Idler 17.6%, Space 12%, Sandbox 8.3%, Incremental 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 26.7%, Idler 20.5%, Incremental 14.8%, Space 11.5%, Futuristic 7.7%
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 34.9%, Space 15%, Futuristic 11.9%, Idler 11.2%, Simulation 8.1%
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 25.5%, Idler 22.6%, Incremental 17.7%, Space 14.9%, Simulation 6.7%
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 29.8%, Space 14.8%, Sandbox 10.8%, Realistic 8.7%, Immersive Sim 8.1%
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 26.2%, Idler 23.6%, Incremental 18.6%, Space 16.7%, Simulation 7%
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 23%, Space Sim 19%, Incremental 14.6%, Space 11.4%, Simulation 7.5%
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 28%, Idler 22.1%, Sandbox 14.2%, Space 13.1%, Simulation 6.4%
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 28.3%, Incremental 16.6%, Idler 15%, Space 9.8%, Futuristic 7.1%
Mesmerizing incremental idle clicker game about space. When objects collide, you receive matter. Use this matter to unlock and upgrade objects in your star system. Use powerful Abilities. Dive into the Prestige system (Warp) with a wide Skill Tree, and discover new star systems with new bonuses.
Why similar: Space Sim 22.6%, Idler 19.9%, Incremental 15.3%, Space 14%, Realistic 7.4%
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 30.3%, Incremental 18.5%, Space 18.1%, Strategy 9%, Simulation 7.9%
Where is your cat flying right now? Outta Space is an idle game where a tiny cat explores the universe from your desktop corner. Every keystroke, every click fuels the spaceship. From the Moon, past the solar system, to distant stars. Come back and see how far your lovely cat has gone.
Why similar: Idler 34.2%, Space Sim 19.4%, Space 14.2%, Incremental 10.8%, Multiplayer 6.9%
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 30.3%, Incremental 18.4%, Space 17.4%, Sandbox 15.6%, Relaxing 5.1%
Galactic Simulator 2: Stargate is a roguelite simulation game inspired by the Fermi Paradox and the Great Filter. Pilot your ship, gather resources, build stargates, and discover other civilizations as you explore an ever-evolving galaxy.
Why similar: Space Sim 26.5%, Space 16.4%, Sandbox 10.6%, Simulation 6.8%, Sci-fi 6.7%
This is an incremental game where you become a cozy destroyer of worlds.
Why similar: Space Sim 36.3%, Incremental 20.2%, Sandbox 12.9%, Simulation 10.2%, Space 9.3%
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 38.2%, Idler 21.1%, Immersive Sim 11.8%, Space 10.1%, Simulation 8.8%
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 32.9%, Idler 21.8%, Incremental 14.1%, Simulation 10.5%, Space 9.4%
My Little Cosmos is a light idle clicker game that runs quietly in the background. Keyboard input and mouse clicks from everyday computer use automatically drive the evolution of a universe, with inventory rewards dropping over time.
Why similar: Space Sim 20.7%, Idler 17%, Space 12.3%, Incremental 10.9%, Sandbox 8%
Real-time planetary collision sandbox powered by SPH physics: smash planets together and watch the destruction and its aftermath!
Why similar: Space Sim 39.8%, Space 18.8%, Sandbox 13.4%, Simulation 8%, Immersive Sim 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 33.4%, Sandbox 19.3%, Simulation 11.8%, Immersive Sim 10.3%, Space 9.8%
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 32.5%, Space 23.1%, Simulation 14.4%, Sandbox 11.4%, Sci-fi 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 37%, Space 18.4%, Sandbox 13.8%, Sci-fi 8.5%, Incremental 8.1%
Start as a microscopic speck, become the end of everything. Void Core is a minimalist sci-fi idle game where you control a black hole. Harvest matter, bend spacetime to automate your growth, and consume entire galaxies. Consume. Grow. Evolve.
Why similar: Idler 27.3%, Space Sim 21.8%, Space 17.2%, Incremental 16.7%, Simulation 6.2%
A sci-fi idler. Upgrade your ships, get new items, and conquer the stars.
Why similar: Idler 34%, Incremental 20.5%, Space 13.2%, Strategy 10.7%, Futuristic 8.7%
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 35.2%, Idler 21.5%, Sandbox 16.8%, Space 6.9%, Top-Down 5.9%
Build and manage your own space company. Design missions, launch satellites, and expand your influence across Earth’s orbit.
Why similar: Space Sim 31.8%, Sandbox 15.3%, Simulation 12.2%, Space 9.9%, Immersive Sim 9.8%
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 45.6%, Space 21.6%, Simulation 12.1%, Sandbox 10%, Relaxing 6.5%
Void Crew is a Chaotic, Co-op Roguelite game for 1 to 6 players: Outfit your spaceship and crew for thrilling quests, brave fierce enemies in Space Battles... and try not to panic!
Why similar: Space Sim 33.8%, Space 12.9%, Co-op 12.7%, Online Co-Op 9.8%, Futuristic 8.1%
Build spacecraft with a realistic part-based editor and fight multiplayer orbital wars using Keplerian, Newtonian, and patched-conics flight. Engage with lasers, railguns, missiles, and EW in fast, decisive battles shaped by strategy and logistics.
Why similar: Space Sim 39%, Space 15%, Simulation 9.8%, Multiplayer 8.2%, Sci-fi 7.8%
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 33.1%, Idler 18.5%, Incremental 12%, Simulation 11.3%, Strategy 9.3%
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 34.8%, Sandbox 17.2%, Space 14.3%, Simulation 12.7%, Strategy 10.3%
Embark on an interstellar journey with Galaxy Idle Clicker! Conquer galaxies, upgrade your spaceship, and face off against a myriad of enemy ships. With engaging minigames, powerful upgrades, GIC delivers an unparalleled idle space adventure. Join the cosmic conquest today and dominate the universe!
Why similar: Idler 26.5%, Space Sim 22.1%, Incremental 18.1%, Space 18.1%, Simulation 5.2%
Become an officer at a space border checkpoint on the edge of the galaxy in this space simulator! Inspect documents, repair malfunctions, and fight back against an approaching black hole. Play solo or team up with friends — only coordinated teamwork can keep the station from being lost forever!
Why similar: Space Sim 21.9%, Idler 14.7%, Co-op 11.7%, Sandbox 9.5%, Space 9.3%
A Game About Getting Bigger is a loot-driven incremental game about feeding a growing black hole. Destroy celestial bodies to make the black hole at the center grow larger and larger.
Why similar: Space Sim 23.1%, Idler 19.7%, Incremental 14.4%, Space 13.2%, Realistic 7.9%
Construct colossal megastructures in this industrial, retro-futuristic idle game. Manage grid-based modules, explore exotic star systems, and unlock the secrets of reality through exploitation and optimization.
Why similar: Idler 28.1%, Incremental 21%, Space 20.6%, Sci-fi 9.5%, Simulation 6.1%
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 33.2%, Space 15.3%, Sandbox 12.1%, Futuristic 11.5%, Sci-fi 8.1%
Design your own solar systems and enjoy watching them orbit, collide and smash each other in a cosmic dance!
Why similar: Idler 24.4%, Space Sim 21.5%, Sandbox 14.4%, Immersive Sim 13%, Space 12.4%
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 36.1%, Sandbox 15.1%, Simulation 12.1%, Immersive Sim 7.6%, Realistic 6.9%
TeepyTime is a shared ambient application. You appear as a glowing orb in space alongside other connected players. There are no objectives. Each player's orbit is procedurally generated and unique.
Why similar: Space Sim 36.5%, Space 21.3%, Immersive Sim 15.1%, Simulation 9.5%, Relaxing 7%
A first person building game where every problem is solved with pipes.
Why similar: Space Sim 37.1%, Sandbox 17.7%, Simulation 9.5%, Immersive Sim 9.1%, Futuristic 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 41%, Sandbox 14.3%, Simulation 10.5%, Space 8.8%, Futuristic 7.5%
Run a coffee empire in space. Hire 33 alien workers, automate brewing across 6 decks, and ride the chaos of Rush Hour surges. Prestige resets unlock layered progression systems that'll keep you optimizing for weeks. Free to play, no paywalls.
Why similar: Idler 27.8%, Space Sim 24.5%, Incremental 17.3%, Futuristic 12.3%, Sci-fi 7.7%
Build and upgrade your personal ship to travel around a strange planet.
Why similar: Space Sim 36.3%, Space 17.9%, Simulation 12.2%, Realistic 10.3%, Sci-fi 9%
Destroy endless waves of alien ships that have all but wiped out humanity in this long form, unfolding, sci-fi idle game. Customize your ship with different weapons and defenses to defeat specific enemy types and utilize a ton of different systems to increase your overall power.
Why similar: Idler 35.2%, Incremental 21%, Space 18.2%, Simulation 8.2%, Sci-fi 6.1%
Clear out space battlefields using a physics-based grappling hook. Salvage wreckage, recycle it into resources, upgrade your equipment, and grow your salvage business to unlock increasingly lucrative contracts.
Why similar: Space Sim 31.2%, Space 19.2%, Simulation 11.6%, Co-op 10.6%, Online Co-Op 10.5%
Pilot your ship across a procedurally generated star map as corruption spreads inward. Each sector holds a stabiliser; protect it from raiders and pump energy into its shields. Jump between nodes, prioritise threats, and manage energy. Hold the line until time runs out, or be consumed by corruption.
Why similar: Space Sim 44%, Space 27.3%, Strategy 11.6%, Sci-fi 6.4%, Simulation 5.8%
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 22.9%, Idler 20.6%, Sandbox 18.1%, Space 13.2%, Simulation 10.5%
Ignite a dying star and forge a galactic empire from a single tap. A cozy sci-fi idle clicker: harvest Energy, automate cosmic megastructures that earn while you sleep, then Ascend, collapse it all into Dark Matter and be reborn as a brand-new star.
Why similar: Idler 34.9%, Incremental 22%, Simulation 17.7%, Space 17.2%, Casual 5.9%
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 35.4%, Idler 26.8%, Simulation 12.7%, Sandbox 8.4%, Space 8.4%
The life of an independent mercenary is rarely without excitement. Your spacecraft awaits and your adventure begins in the Sapphire star system.
Why similar: Space Sim 30.1%, Space 29.9%, Simulation 11.7%, Sandbox 11.6%, Sci-fi 7.8%
How To Grow a Black Hole is about... well... how to grow a black hole. Manage your black hole, feed it to gain mass, and prevent catastrophic collapses. Compete globally or against your friends to achieve the biggest black hole. Maybe you'll be #1.
Why similar: Idler 31.7%, Space 18%, Simulation 13.8%, Realistic 12.1%, Incremental 8.1%
Low Earth Orbit Adventures is a chill space sim set in the near future where the space around Earth has become a frontier of science, commerce and diplomacy. Retrieve the Hubble, rescue astronauts, assemble space stations and many other missions in this realistic but friendly adventure.
Why similar: Space Sim 41.3%, Realistic 13.4%, Immersive Sim 11%, Space 10.3%, Relaxing 7.2%
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 29.6%, Space 19.8%, Sandbox 13.7%, Simulation 7.5%, Relaxing 6.9%
In Delos, you are the space traffic controller managing the flow of ships at a bustling space station. Direct docking, allocate resources, and prevent collisions in a real-time strategy setting. Balance efficiency and safety to maintain order in the interstellar hub.
Why similar: Space Sim 45.7%, Incremental 11.9%, Simulation 10.9%, Sci-fi 10.1%, Strategy 8%
A chaotic incremental mining game where a single swing scales into screen-clearing mayhem! Smash planetary quotas to unlock advanced tools, deploy helper bots, and invest in a massive skill tree. Trigger devastating proc combos and break your efficiency wide open.
Why similar: Space Sim 23.6%, Idler 22.2%, Incremental 16.1%, Space 14.2%, Sci-fi 7.3%
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 32.8%, Space 29.4%, Sandbox 13.1%, Simulation 8.9%, Sci-fi 7.9%
Toilet Paper Idle is an incremental game about consuming as much toilet papers as possible with the help of helpers, skills, and upgrades. Discover special types of toilet papers as you progress, and be careful to not clog your toilet!
Why similar: Idler 41.3%, Incremental 26.3%, Simulation 10.2%, Sandbox 8.7%, Casual 4.1%
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 33.5%, Space 27.7%, Sandbox 10.5%, Simulation 9.2%, Sci-fi 7.5%
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 35.4%, Space Sim 26%, Simulation 14.3%, Sci-fi 11.2%, Sandbox 10.9%
