Top similar games like Idle Space War:

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).

Fight off a galactic threat in this idle clicker game. Battle waves of enemy ships, progress actively or passively, and save humanity. With over 200 high-quality ship models and background mode, watch your fleet soar across your desktop while you work!

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.

Void Inspector is a hands-on deep-space customs simulator. Operate heavy machinery, sweep vessels with tactical scanners, cross-reference paperwork, and deliver your verdict. Just remember: every switch you flip is billed to your account.

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 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!

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.

Manage a colony of people who woke too soon from their cryo-sleep. Build and manage a working generation ship and hopefully one day the grandchildren of the first generation might land on a habitable planet.

You are the eyes and ears of mission control for the ambitious exploration of Mars. Built under the advisement of real astronauts, engineers & planetary scientists, you will choose your mission, design your hab, and manage your crew. Monitor feeds, issue orders, and react when things go sideways.

Celestarium, an astronomy game where you start as an amateur astronomer. Discover and map planets, sell data to corporates, improve your gear, start your own space agency, manage your own missions, build and fly rockets to discovered bodies. Explore, prosper and expand your presence in space.

A story-driven incremental game with idle and auto-battler mechanics, inspired by Factorio logistics, Path of Exile itemization, and Eve Online's economy

An idle clicker where you grow one small planet into a galactic empire. Click Earth, colonize living worlds across star systems, build Dyson Spheres, catch comets and reset reality with the Big Bang. Your civilization keeps producing even while the game is closed.

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.

Starship Factory is a construction / space simulation game where you build, test, and optimize rocket production for Mars colonization.

An idle incremental adventure. Fight monsters, buy upgrades, recruit a party, craft equipment, join a faction, battle across different regions, and complete hundreds of rewards. Unlock a variety of fun features and use them to make your numbers go up!

Embark on a cosmic odyssey as the director of your own space station in a galaxy full of wonders. Skillful management is vital as you construct and connect station components, oversee resource handling, and guide your space haven to reach new heights amidst the stars.

The ultimate space capital ship combat compendium is the evolution of hard core space combat sims. The only game of its kind currently in existence.

Stunning sphere-themed idle/incremental game. Experience simplicity's beauty.

🚀 Become a Space Pioneer by building and managing a station of your own on the orbit of distant planets! Focus on design and management or fulfill objectives to progress. 🛰️ Explore, Build and Prosper!

A research spaceship reaches an abandoned planet. Nothing is what it seems here and the situation quickly slips out of control. Can the crew manage to survive and get back home?

At the sunset of human life on planet Earth, you are a military pilot controlling a space ship, and you find yourself at the very epicenter of the battle in the solar system. You are forced to retreat into the unknown, distant Arcanum system through hyper-jumping.

Build a team of Elite Secret Agents, and send them on dangerous missions around the globe.

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.

Real-time strategy game with commander task control. Pilots-Mercenary, each with their own character, and many unique ships for them. Interesting missions. Base development, various technologies and space exploration.

'EOPN – Test RS' is a true screening test from the French Air & Space Force, turned into a sci-fi turn-based strategy game set in a nebulous future. Train for your selections or just enjoy the dive in this immersive experience where the goal is to take the best decisions to survive.

You've been sent ahead to establish a foothold economy for a future colony in deep space. Establish trade routes, buy supplies, and get the gears of industry turning before making landfall. The future of the colony is yours to decide.

Age of Axiom is an atmospheric incremental game that combines satisfying "number-goes-up" progression with an unraveling sci-fi mystery. 

Carbonflesh is an atmospheric time-management RPG lifesim with clicker and base building elements, in a theocratic-industrial cyberpunk world. Hack, train and break free from the prison train you were left to rot. Make your comeback and reclaim the legacy you were cheated out of- no matter the cost.

Build, launch and manage realistic space missions across our solar system, placing satellites and telescopes in precise orbits. Explore planets, collect valuable scientific data and sell your findings to expand your rising aerospace empire.

Explore space: Colonize different planets, gather valuable resources, and build your own space colony. Travel the solar system and even create your own planet. Your decisions shape the future of the galaxy in this limitless space adventure.

Sirens blare, the instruments lie. Dynamite Day is a co-op thriller inside a missile-defense bunker: in minutes, tell a real attack from the spies' lies and decide whether to launch the counterstrike. Co-op for up to 6 players. One mistake - and humanity is dust.

You've barely managed to escape your exploding spaceship. Now in an old escape pod, you hurtle through space at the mercy of the cosmos. With no knowledge of the pod’s complex systems, your life depends on a technical manual and your own wits. How long can you survive?

Perihelion lets you run your own rocket engine shop. Take over an abandoned desert airfield, design realistic, unique engines, then test them!

Defend your moon from endless alien waves! Collect gold, upgrade defenses, unlock new weapons and planets, and build the perfect defense while you do other things.

Ancient Space is a story driven single player real time strategy game where you take command of a fleet embarking on a scientific mission to chart undiscovered reaches of space called ‘The Black Zone’. Overcome overwhelming odds and fight for your life and the survival of your ship and its crew.

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.