60+ similar titles based on shared tags and player behavior. Themes include Space, Simulation, Strategy, Space Sim.
The Rebel Space Admiral is an idler/ clicker game about space exploration with battles, trade, base building, planet invasions and science research. Fight your way through hundreds of star systems, meet aliens, find powerful artifacts and defeat an ancient evil before it purges the galaxy.
Astral Outpost
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.
RECROSS IDLE
An idle space 4X drawn entirely in Minitel-era text. Your empire builds, scans and colonizes while the game is closed — but the Hegemony raids on ninety seconds' warning, and something at the centre of the galaxy has started listening.
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 31.7%, Idler 17.1%, Strategy 10.6%, Building 9.9%, Simulation 8.8%
An idle space 4X drawn entirely in Minitel-era text. Your empire builds, scans and colonizes while the game is closed — but the Hegemony raids on ninety seconds' warning, and something at the centre of the galaxy has started listening.
Why similar: 4X 34% ★, Idler 23.1%, Incremental 9.4%, Strategy 8%, Aliens 6%
Lead humanity's first deep survey beyond Sol in a research-first space strategy game. Explore star systems, investigate worlds, deploy probes, and turn scientific discoveries into strategic power.
Why similar: 4X 37.9% ★, Space Sim 26.5%, Strategy 10.5%, Exploration 6.2%, Simulation 6.1%
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 31%, Idler 15.8%, Incremental 11.4%, Futuristic 9.4%, Aliens 7.5%
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 33.5%, Idler 24.6%, Futuristic 6.9%, Simulation 6.8%, Strategy 6.8%
Aeons of Rebirth is a short, strategic incremental journey about exploring planets and building the greatest space empires ever!
Why similar: 4X 43.5% ★, Idler 28.8%, Aliens 11%, Futuristic 10.1%, Incremental 3%
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 38.2%, Idler 23.2%, Incremental 9.8%, Strategy 7.9%, Simulation 6.5%
A sci-fi exploration game written in 1994, updated to use a modern 3D engine, and remains faithful to the original. The story is fully intact with only minor tweaks to gameplay and cosmetics. The original game is often compared to Star Control and Starflight.
Why similar: Space Sim 34.8%, 4X 21.4% ★, Building 14%, Exploration 7.9%, RPG 6.1%
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 41.7%, Idler 24.2%, Simulation 11.9%, Incremental 11.9%, Sci-fi 6.3%
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 31.3%, Idler 26.7%, Aliens 14.6%, Incremental 13.6%, Simulation 6.6%
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 26.8%, Space Sim 22.9%, Incremental 11.1%, Futuristic 9.5%, Sci-fi 8.8%
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 34.6%, Idler 25.6%, Futuristic 12.1%, Incremental 12%, Sci-fi 7.6%
A real-time sci-fi 4X strategy game where you explore procedurally generated star systems, expand your empire, manage resources, build fleets, and wage war against multiple AI factions in a dynamic and evolving galaxy.
Why similar: 4X 39.8% ★, Space Sim 29.3%, Strategy 12%, Simulation 8.7%, Sci-fi 5%
Explore a unique, procedurally generated galaxy filled with alien artifacts and resources to extract and exploit. Mine asteroids, harvest nebula, pilot unique ships and find new and strange things in the void between stars as you struggle to survive long enough to find another home.
Why similar: Space Sim 32%, Aliens 15.8%, Building 13.7%, Futuristic 11.9%, Strategy 7.5%
Build order on a strange planet, keep your crew alive, and gather the parts needed to repair the crashed main ship. Manage resources, explore new areas, face growing threats, and strengthen your colony a little more with each passing day.
Why similar: 4X 36.9% ★, Space Sim 35.8%, Strategy 7.3%, Sci-fi 7.1%, Exploration 5.6%
Play a grand strategy game in any world you want, on land or in space. Import real maps, play a procedurely generated world, or hand-draw your own fictional universe. Then lead your faction to domination by managing its economy, diplomacy, and military.
Why similar: 4X 36.9% ★, Space Sim 18.2%, Idler 14.7%, Strategy 8.2%, Building 7.9%
A simulation sci-fi game where players take on the role of the project manager of a space elevator project. They will progressively achieve project phase goals and ultimately accomplish the ultimate goal of constructing a Mars colonization spacecraft.
Why similar: Space Sim 42.5%, Strategy 14.9%, Building 13.9%, Simulation 12.9%, Exploration 8.6%
A lo fi space salvage game. Strip dead warships for parts, fuel and gear. Fit your ship, manage your heat, and fight the machines that still hunt out here. Two hundred star systems, thousands of rolled drops, stations to build up. Made by one person. Trust nothing. Stay adrift.
Why similar: Space Sim 39.5%, 4X 29.2% ★, Strategy 7.6%, Exploration 6.8%, Open World 5.3%
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: 4X 25.8% ★, Space Sim 23.6%, Idler 21.9%, Incremental 10.1%, Exploration 7.5%
Play God as an advanced intelligence observing a living Earth across deep time. Discover minds in unexpected forms, shape evolving civilizations, and watch your interventions become miracles, myths, mysteries—or reasons to resist you.
Why similar: 4X 43% ★, Aliens 14.5%, Strategy 12.4%, Simulation 10.6%, Incremental 10.4%
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 38.4%, Idler 24.5%, Incremental 10.3%, Simulation 9.9%, Strategy 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 38.1%, Idler 27.8%, Building 11.5%, Simulation 11%, Sci-fi 8.7%
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 29.1%, Space Sim 26.5%, Futuristic 16.1%, Incremental 11.8%, Sci-fi 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 48.1%, Futuristic 14.2%, Simulation 13.3%, Exploration 9.8%, Sci-fi 7.4%
Empires of a Tiny Universe is a relaxed single-player RTS where you build and expand your empire across space. Manage planetary infrastructure, develop new technologies for your fleet, and conquer the galaxy - all from a clear, minimalist perspective.
Why similar: 4X 40.2% ★, Aliens 16.2%, Building 14.3%, Futuristic 11.5%, Strategy 8.6%
A logistics-focused turn-based space 4X. Govern through Administrative Nodes, connect systems with wormhole infrastructure, assign population to production and research, and expand only as far as your empire can support.
Why similar: 4X 46.8% ★, Space Sim 30.1%, Sci-fi 8.6%, Strategy 7.1%, Simulation 5.3%
Colonize a galaxy in 256 colors! In this RiscOS gem from 1997, the fate of human civilization lies in your hands. Travel the stars, claim uninhabited planets or fight over them against your alien opponents. Your ultimate chance to relive the original experience, on the PC for the first time ever.
Why similar: 4X 32.2% ★, Space Sim 29.9%, Strategy 10.9%, Futuristic 9.7%, Simulation 9.2%
A galaxy with its own economy, its own wars, and no reason to wait for you. Trade, mine, fight, and salvage a living - alone on the rim, or at the head of an empire the great powers can't ignore. A single-player space sandbox that never stops moving.
Why similar: 4X 30.1% ★, Space Sim 29.9%, Strategy 7.3%, Sci-fi 7.2%, Open World 7.1%
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: 4X 32.6% ★, Space Sim 23.7%, Strategy 15.1%, Simulation 11.6%, Sci-fi 5.7%
Build an automated industrial empire from stone tools to singularity tech. Click, automate, and research through 10 eras, then breach reality to conquer parallel dimensions with unique rules, resources, and threats. Idle factory builder with deep prestige and cross-dimensional logistics.
Why similar: Idler 30.1%, Building 21.3%, Incremental 15.5%, Futuristic 9.6%, Simulation 8.1%
Run a post-collapse megacity where every decree has a cost. Balance industry, survival, politics, war, ecology, and human lives in idle-strategy simulation. Play in real time or one turn at a time. Idle/strategy/sandbox/dystopian/city builder.
Why similar: 4X 32% ★, Idler 17.2%, Building 12.2%, Futuristic 10.9%, Incremental 7.9%
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 42.8%, Idler 27.1%, Simulation 11.3%, Exploration 8.1%, Sci-fi 6%
Children of the Galaxy is a grand scale 4x turn-based strategy game with a turn-based combat and tactical elements. You can explore the galaxy, colonize planets and build huge armies of starships to fight in epic space battles.
Why similar: 4X 56.2% ★, Strategy 16%, Simulation 13.3%, Sci-fi 10.6%, Indie 3.8%
Welcome to Trappist-1, 40.7 light-years from Earth. Fly your Ark, a colossal spaceship and mobile base. Explore the solar system and establish thriving colonies. Uncover the mysteries of Trappist in this story-driven colony builder.
Why similar: 4X 26.9% ★, Space Sim 25.5%, Building 13.6%, Aliens 9.8%, Futuristic 7%
10ⁿ - TEN POWER N is a science & fiction strategy-simulation where you create, explore and conquer the universe from quantum foam to the cosmic expanse. Traverse 19 levels, manage more than 600 resources, defend your simulation. The universe isn’t just yours to explore – it’s yours to command!
Why similar: 4X 41.1% ★, Idler 14%, Building 11.8%, Aliens 9.6%, Sci-fi 7.4%
A strategy game about space (location) in space (cosmic). Colonise the galaxy with a thousand clicks of a mouse. Winner of DreamHack Austin Jam!
Why similar: 4X 38.8% ★, Space Sim 29.9%, Strategy 14.4%, Incremental 10.1%, Simulation 5.2%
Attack of the Zektoids! blends active ability timing with deep incremental progression. Buy turrets based on elements and elemental synergies. Choose upgrade paths for each turret. Defeat strong Zektoids to receive powerful gear. Prestige to unlock permanent upgrades.
Why similar: Idler 35.5%, Aliens 20.1%, Incremental 13.1%, Futuristic 11%, Sci-fi 5.6%
Pilot a lone UFO in this cozy idle desktop game that lives in the corner of your screen. Discover randomly generated planets, extract rare resources, uncover strange artifacts, and build your collection one world at a time.
Why similar: Space Sim 38.6%, Idler 23.3%, Aliens 16.9%, Exploration 7.8%, Sci-fi 7.5%
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 33.3%, Idler 25.7%, Futuristic 11.6%, Incremental 8.6%, Sci-fi 6.7%
Order: The New Dawn is a colony sim with space adventure. As a legendary captain from the United Stellar, build a base on the desert planet New Terra and face the perils of the Wastespace—how will you shape the destiny of the stars?
Why similar: Space Sim 33.8%, 4X 27.7% ★, Building 13.8%, Exploration 6.6%, Strategy 5%
Pixel Starships is an FTL-style online sci-fi strategy builder and management game with a competitive PVP tournament. Set in the retro galaxy, your role is to explore space, meet aliens, and develop your ship, crew and AI. The game contains deep strategic and 4x elements. PSS is community-driven.
Why similar: Space Sim 28.9%, 4X 28.3% ★, Building 12.9%, Aliens 10.2%, Sci-fi 7.8%
Build and expand an orbital station in this idle/incremental space colony sim. Manage crew, resources, refinery chains, research and ship expeditions as you progress from Earth orbit toward new planets.
Why similar: Idler 24.7%, Space Sim 24.6%, Incremental 12.4%, Building 9.2%, Strategy 8.1%
A 2D side-scrolling sandbox survival game featuring pure random exploration and mining. Mine, gather, study alien life, and build bases. Battle harsh environments and rival alien miners. Embrace unpredictable roguelike survival challenges in an infinitely generated universe.
Why similar: Space Sim 32.2%, Aliens 16.3%, Building 14.7%, Futuristic 13.2%, Sci-fi 7.2%
Build your empire. Name a star. Leave your mark on the universe forever. Explore space in this incremental idle game. Visit other players' stars, conquer their systems, discover powerful synergies, and automate your space empire.
Why similar: Space Sim 43.2%, Idler 22.9%, Incremental 11.1%, Open World 8.7%, Simulation 7%
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 37.5%, Incremental 14.9%, Strategy 13.7%, Futuristic 10.1%, Simulation 8.2%
Cats to the Moon is a short incremental game about leading a nation of silly cats as they attempt to become the first ever to land on the moon. Explore space, build your city, and most importantly, reach a place no other cat has ever been.
Why similar: Idler 28.7%, Space Sim 27.6%, Incremental 12.3%, Strategy 10.1%, Simulation 7.7%
Hex Core Idle is an incremental idle game where you help PeteOS defend the digital world from an ever-growing wave of digital threats. Build up your power, unlock new systems, and discover new ways to push your progression further.
Why similar: Idler 45.5%, Incremental 17.8%, Futuristic 13.9%, Sci-fi 11.8%, Simulation 5.1%
A 4X strategy game where you start by hatching a single egg and eventually build a galactic empire to rival the greats. Craft resources, navigate politics, and shape the future of the universe in this unique space sandbox.
Why similar: 4X 34.2% ★, Space Sim 27.9%, Building 11.8%, Futuristic 9.1%, Strategy 7%
The endless expanse of space has never been such a dangerous place. Take command as a Space Fleet Admiral who will face the challenge of galactic war and determine the fate of the universe.
Why similar: Space Sim 43.4%, Strategy 15.3%, Futuristic 11.4%, Simulation 10.4%, Sci-fi 9.9%
Engage in real-time battles with customizable space warships. Explore the galaxy, forge alliances, develop powerful ships, and defeat alien invaders.
Why similar: 4X 27.7% ★, Space Sim 27.1%, Futuristic 10.2%, Sci-fi 8.1%, Strategy 7.9%
An exceptional sci-fi strategy game based on space adventure as its core.
Why similar: 4X 40.1% ★, Space Sim 28.6%, Sci-fi 8.7%, Strategy 7.9%, Exploration 5.8%
Take the helm of a state-of-the-art warship as you fight epic space battles in a sandbox campaign. Upgrade and customize your ship, master the art of maneuvering, and use a blend of tactical prowess and heavy firepower to overcome deadly threats.
Why similar: Space Sim 30.2%, 4X 26.3% ★, Building 11.9%, Sci-fi 7.9%, Open World 6.1%
Void Ascendancy is a UI-driven space empire simulation where you colonize planets, manage specialized worlds, and build interstellar trade networks across a procedurally generated star cluster.
Why similar: 4X 47.7% ★, Strategy 13.9%, Simulation 12%, Futuristic 10.4%, Exploration 6.2%
Ready to be an interstellar mining tycoon? In Astrovein, fit the right modules and mine each star system at top efficiency. But a full hold draws pirates: fight beside your captain, or man the turret yourself. No time? Your captains mine on quietly in a corner of your screen.
Why similar: Space Sim 41.1%, Idler 20.6%, Incremental 11%, Simulation 10.7%, Futuristic 8.2%
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 51.8%, Exploration 12.4%, Futuristic 10.5%, RPG 7.6%, Sci-fi 6.3%
A real time open world strategy game. Game consist of a massive overworld with many planets and dimensions. You play as a hero, discovering new lands even in the farthest reach of the galaxy through expedition and conquest. You can build a base and summons which could be used in your wars!!
Why similar: 4X 37.4% ★, Building 16%, Aliens 13.2%, Strategy 7.3%, Sci-fi 6.1%
beyond.frontiers is an open-world space adventure with 30+ ships, 125+ sectors, and fully voiced stories. Trade, explore, or fight — your choices shape the galaxy as three empires clash and ancient secrets await discovery.
Why similar: Space Sim 44.8%, PvE 12.5%, Exploration 10.5%, Open World 8.5%, Sci-fi 7.2%
Survive 20 tense days aboard a failing spaceship while hunting down an enemy satellite. Every day brings new malfunctions, random story events, and difficult choices. Will you find the target before it's too late?
Why similar: Space Sim 43.4%, Strategy 15.1%, Aliens 14.9%, Incremental 12.4%, Sci-fi 6.5%
Settlers of Idlestan is an 4X idle civilization builder set on a procedurally generated hex-grid island. Gather resources, grow your cities, research technologies, trade goods, and prestige into deeper layers to build an ever-expanding empire — even while you're away.
Why similar: 4X 46.9% ★, Idler 30.9%, Incremental 11.3%, Strategy 8.1%, 2D 2.3%
Project Chromata is a A sci-fi incremental in ten stages that refuses to stay one. Pull red, yellow and blue out of the void, converge them into Light, and relight a dead universe. Then it changes. An idle game with an ending, not one prestige layer remains the same forever.
Why similar: Idler 40.6%, Futuristic 22.3%, Simulation 16.1%, Strategy 7.7%, 2D 5.5%
