60+ similar titles based on shared tags and player behavior. Themes include Space, Simulation, Space Sim, Sci-fi.
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!
Space Mechanics: repair | hiring | crafting
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.
Astromental Incremental
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.
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 34.7%, Space 14.8%, Futuristic 11.7%, Idler 11.6%, Simulation 8.1%
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: Idler 25.8%, Space Sim 19.3%, Space 15.7%, Incremental 11.2%, Simulation 7.1%
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 25.7%, Idler 24.2%, Incremental 19.2%, Space 16.3%, Simulation 6.9%
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 23.6%, Space Sim 18.6%, Incremental 15%, Space 11.1%, Simulation 7.5%
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 10.9%, Realistic 8.6%, Immersive Sim 8.2%
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 27.8%, Incremental 17.1%, Idler 15.5%, Space 9.6%, Futuristic 6.9%
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 27.6%, Idler 22.8%, Sandbox 14.2%, Space 12.9%, Simulation 6.4%
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 31%, Incremental 19%, Space 17.6%, Strategy 8.8%, Simulation 7.8%
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 35%, Space Sim 18.9%, Space 13.8%, Incremental 11.1%, Multiplayer 6.7%
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 26.4%, Space 16.3%, Sandbox 10.7%, Simulation 6.8%, Sci-fi 6.6%
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 37.8%, Idler 21.8%, Immersive Sim 11.7%, Space 9.9%, Simulation 8.8%
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 27.9%, Space Sim 21.3%, Incremental 17.2%, Space 16.8%, Simulation 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 32.4%, Space 23%, Simulation 14.5%, 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 36.8%, Space 18.3%, Sandbox 13.8%, Incremental 8.5%, Sci-fi 8.4%
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 31%, Sandbox 15.1%, Simulation 12%, Space 10.4%, Strategy 9.8%
A sci-fi idler. Upgrade your ships, get new items, and conquer the stars.
Why similar: Idler 34.7%, Incremental 21%, Space 12.9%, Strategy 10.6%, Futuristic 8.5%
Construct colossal megastructures in this industrial, retro-futuristic idle game. Manage grid-based upgrades, explore exotic star systems, and unlock the secrets of reality through exploitation and optimization.
Why similar: Idler 29.8%, Incremental 23.6%, Space 20.1%, Simulation 9.7%, Futuristic 7.2%
Real-time planetary collision sandbox powered by SPH physics: smash planets together and watch the destruction and its aftermath!
Why similar: Space Sim 39.8%, Space 18.8%, Sandbox 13.5%, Simulation 8.1%, Immersive Sim 6%
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 34.8%, Idler 22.2%, Sandbox 16.7%, Space 6.8%, Top-Down 5.9%
Idle Space War is an idle space simulation game where you upgrade your spaceship, explore distant planets, and collect resources. Progress continues even when you’re offline. Customize your ship, develop strategies for unique planets, and enjoy a relaxing yet engaging interstellar adventure.
Why similar: Space Sim 24.6%, Idler 17.2%, Incremental 12.3%, Space 9%, Immersive Sim 7.2%
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 20.4%, Idler 17.6%, Space 12.2%, Incremental 11.3%, Sandbox 7.9%
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 45.5%, Space 21.5%, Simulation 12.3%, Sandbox 10%, Relaxing 6.5%
Build and manage your own space company. Design missions, launch satellites, and expand your influence across Earth’s orbit.
Why similar: Space Sim 31.7%, Sandbox 15.3%, Simulation 12.4%, Immersive Sim 9.8%, Space 9.8%
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 37.3%, Space 14.6%, Co-op 14.5%, Online Co-Op 10.1%, Multiplayer 9.1%
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 9.9%, Multiplayer 8.3%, Sci-fi 7.7%
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 21.7%, Idler 15.3%, Co-op 11.7%, Sandbox 9.5%, Space 9.2%
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 27%, Space Sim 21.8%, Incremental 18.6%, Space 17.7%, Simulation 5.1%
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 34.7%, Sandbox 17.2%, Space 14.2%, Simulation 12.8%, Strategy 10.3%
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 36%, Sandbox 15.1%, Simulation 12.2%, Immersive Sim 7.6%, Realistic 6.8%
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 36.4%, Space 21.2%, Immersive Sim 15.1%, Simulation 9.6%, Relaxing 7.1%
A first person building game where every problem is solved with pipes.
Why similar: Space Sim 37%, Sandbox 17.7%, Simulation 9.6%, Immersive Sim 9.1%, Futuristic 7.9%
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 12.2%, Futuristic 11.4%, Sci-fi 8.1%
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 35.6%, Incremental 21.4%, Space 17.7%, Simulation 8.3%, Sci-fi 5.9%
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 28.5%, Space Sim 24%, Incremental 17.8%, Futuristic 11.9%, Sci-fi 7.5%
Build and upgrade your personal ship to travel around a strange planet.
Why similar: Space Sim 36.3%, Space 17.9%, Simulation 12.4%, Realistic 10.2%, Sci-fi 9%
Deep Space Miner is a short incremental mining game about unlocking powerful tools, upgrades, and game-changing procs. Explore planets, mine rare resources, evolve your gear, and grow stronger through a massive skill tree as you push deeper into the galaxy.
Why similar: Space Sim 30.5%, Idler 25.7%, Incremental 19.9%, Strategy 7.9%, Top-Down 5.7%
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 34.9%, Idler 27.6%, Simulation 12.6%, Sandbox 8.4%, Space 8.3%
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 22.7%, Idler 21.3%, Sandbox 18%, Space 13%, Simulation 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 43.9%, Space 27.2%, Strategy 11.7%, Sci-fi 6.4%, Simulation 5.8%
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 41.7%, Incremental 26.7%, Simulation 10%, Sandbox 8.4%, Casual 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 29.8%, Simulation 11.8%, Sandbox 11.7%, Sci-fi 7.8%
An atmospheric short incremental game about deep space exploration. Gather scientific data, upgrade your observatory, and collect all the discoveries!
Why similar: Idler 31.3%, Space 19.4%, Incremental 16.9%, Strategy 11.1%, Simulation 8.5%
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 45.4%, Incremental 12.4%, Simulation 10.9%, Sci-fi 10%, Strategy 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 32.7%, Space 29.3%, Sandbox 13.1%, Simulation 9%, Sci-fi 7.9%
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 29.5%, Space 19.7%, Sandbox 13.7%, Simulation 7.6%, Relaxing 6.9%
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 41.2%, Realistic 13.3%, Immersive Sim 11%, Space 10.3%, Relaxing 7.3%
Massive ground and space battles with hundreds of units. Seamless landings on huge spherical planets. Interplanetary flights with explorable ship interiors. Boarding vessels anywhere in combat, space or surface. All in a single-server PvE co-op space-sim shooter.
Why similar: Space Sim 36.8%, Space 16.2%, Co-op 12.2%, Futuristic 10.5%, Multiplayer 8.3%
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 33.1%, Space 27.7%, Sandbox 10.6%, Simulation 9.4%, Sci-fi 7.5%
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 31.6%, Space Sim 22.6%, Sandbox 17%, Simulation 12.3%, Sci-fi 7.5%
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: Idler 22.8%, Space Sim 20.1%, Space 16.4%, Sandbox 13.4%, Top-Down 7.4%
Experience cosmic harmony in this Katakamuna-inspired idle game. Gather "Ka," the essence of all existence, and weave the 80 verses of the Katakamuna Utahi. As an idle game, actions automate as you progress, allowing you to create harmony through color and sound, even when offline.
Why similar: Space Sim 29.2%, Idler 22.3%, Incremental 14.8%, Space 10%, Simulation 6.2%
A short, chaotic incremental game about growing your black hole as you chase panicked animals across levels with janky physics. Catch them, stack incremental upgrades, and dive into fast runs that always tempt ‘just one more’.
Why similar: Idler 29.7%, Incremental 22.4%, Space 18.8%, Strategy 7.1%, Relaxing 6.5%
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 38.1%, Sandbox 15.7%, Simulation 14.2%, Space 12%, Strategy 11.6%
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 35.3%, Space Sim 26%, Simulation 14.5%, Sci-fi 11.2%, Sandbox 11%
Generate energy, and colonize the entire universe! Click for Humanity is an idle game. Start from Earth and take control of the entire solar system!
Why similar: Idler 46.4%, Incremental 18.9%, Space 16.8%, Sci-fi 8.8%, Casual 5.4%
The most scientifically accurate space warfare simulator ever made. Now with Steam Workshop!
Why similar: Space 25.9%, Space Sim 18.5%, Realistic 15.9%, Simulation 13.1%, Strategy 10.3%
The whole universe is at your mouse-clicks in this sci-fi idler game - make stars, make constellations, and make more power... to keep making more! Plus, you'll get to discover real constellations, or design your own :)
Why similar: Idler 31.4%, Incremental 24.8%, Space 19.6%, Sandbox 12.4%, Casual 5.6%
A Co-op spaceship bridge simulator where you form a crew of 3 to 6 players serving in various roles like Captain, Helms, Relay, Weapons and Science officer. It's designed to run on almost any system and to be highly customizable due to it's extensive GM screen and powerful scripting capabilities.
Why similar: Space Sim 33.2%, Space 13.1%, Co-op 12.9%, Multiplayer 8.3%, Simulation 7.9%
"Click and Adventure" is a relaxing, compact click-based idle game. Explore by clicking, consume health points to defeat various monsters, obtain treasure chests, unlock the encyclopedia, increase passive income, upgrade skills, unlock new maps, and defeat new monsters.
Why similar: Idler 36.4%, Incremental 22.8%, Simulation 12.6%, Strategy 10%, Casual 9.3%
An asteroid mining based idle game. Travel in space and discover.
Why similar: Idler 30.7%, Incremental 24.1%, Space 18.4%, Strategy 7.4%, Futuristic 7%
