银河战争一(Galactic Wars One）
A tower defense strategy science fiction game, in the future era, when aliens invade the solar system, players need to build various turrets to…
$1.60
Games like 飞跃星球（Eggy Space）
Loved how cute and colorful 飞跃星球（Eggy Space） can get? These games are a good place to start.
Desperate Place
Desperate Place is a strategic tower defense game where you play as a crew member who wakes up early on a damaged colonization starship. Stranded on an unknown planet, you must gather resources, repair the ship, and defend against alien monsters to survive and escape.
Replayable
66% of 253 Steam reviews are positive$10.99Stellarcraft
Stellarcraft is a sci-fi tower defense adventure: explore alien planets, gather resources, build defenses, and fend off waves of enemies, solo or in 4-player co-op. 🚀
Colorful, Replayable
88% of 76 Steam reviews are positivePlayers online now: 1$9.99Forbidden Planet
"Forbidden Planet" is a Space Strategy and Tower Defence like Game. You control a small spaceship and your main goal is to protect your own home planet. Explore the universe for resources. Colonize other planets. Defend from the asteroids.
51% of 139 Steam reviews are positive$4.99Galaxy Defense War
'Galaxy Defense War' is a roguelike tower defense game where you need to select suitable galactic principles from randomly dropped heroes and equipment to form a combat-ready team to resist alien invaders.
Colorful, Replayable
97% of 112 Steam reviews are positivePlayers online now: 1$7.72Space Cycle
Space resources are the battleground for warring factions. As a Space Defense Officer, protect your faction's assets in a vast, hostile universe. Allocate resources, upgrade defenses, and repel relentless enemy attacks! With over 50 unique units and deep strategy, experience real-time tower defense!
Colorful, Replayable
93% of 179 Steam reviews are positive$1.99Planetka
You play as a tiny sentient planet. Maintain your ecosystem, create new plant species and discover the hidden powers inside you. You’ll need them soon, because there is a human spaceship approaching with the intention to mine all your resources and they don’t care if it kills you in the process.
Cute, Colorful, Replayable
89% of 183 Steam reviews are positiveFree银河战争一(Galactic Wars One）
A tower defense strategy science fiction game, in the future era, when aliens invade the solar system, players need to build various turrets to resist alien attacks and guard the Milky Way and solar system.
$1.60Exo TD
Exo TD is a true 3D space Tower Defense. Invaders have scouted your planet as their next target, you must protect it by building destructive turrets, orbital defenses, shields, drones and more to defend against the incoming invasion force.
Replayable
75% of 8 Steam reviews are positive$19.99Space Base
Space Base is an action-packed tower defence game, where you aim to protect your planets from the incoming forces of enemy ships and aliens by any means necessary. Build up your defences as stronger and stronger waves of enemies arrive to reach the highest score possible.
Colorful, Replayable
$4.99星旅：前奏 Wandering Planet: Prelude
Star Trek: Prelude is a space-based game that builds defense towers on earth to defend against alien invaders called Black Ember.
$3.99Get Off My Space!
Get Off My Space! is a tower defense game where you rely on skillful tower placement and resource management to beat upcoming dangers of the galaxy. Combining strategy and micro-managing fire groups, you will overcome the hardest level objectives.
Colorful, Replayable
0% of 2 Steam reviews are positive$0.99Project Astra Dominium
Project Astra Dominium is a Tower Defense game with Basebuilding and Automation elements. Build up your base to become a supply hub for Earth's desperately needed materials, gather resources while defending against an unknown alien threat and improve your tower's and AI capabilities.
Colorful, Replayable
87% of 70 Steam reviews are positive$7.99
Cheaper than 飞跃星球（Eggy Space）
ROD: Revolt Of Defense
Explore a random generated space. Find artifacts and treasure maps. Build and develop your base on a flying platform.
80% of 526 Steam reviews are positive$0.99
Get Off My Space!
Get Off My Space! is a tower defense game where you rely on skillful tower placement and resource management to beat upcoming dangers of the galaxy.
0% of 2 Steam reviews are positive$0.99
Galaxy Defenders (Classic TD)
A classic tower defense game set in space! Build and upgrade towers, defend your portal from waves of alien invaders, and outsmart evolving threats…
$0.99
Sunset Planet
Sunset Planet is tower defence game. Your beautiful planet has been invaded by alien invaders.
88% of 8 Steam reviews are positive$0.99
Alien Land
This is a special simulation tower defense game, where you need to command each citizen to build a base.
100% of 3 Steam reviews are positive$0.99
Orbital Tower Defence
Build towers on rotating orbital rings to defend your planet.
100% of 4 Steam reviews are positive$0.99
Homeworld Defense
Homeword defense is a strategic game in which you will protect your planets from the waves of asteroids, find out why they appear and save your…
30% of 10 Steam reviews are positive$0.99
Universe Exploration
A text-based space idle strategy game where you build machines, expand your territory, and command interstellar fleets on a journey from the Solar…
86% of 28 Steam reviews are positivePlayers online now: 6$0.99
Save the settlers
This is a tower defense game in which you have to defend a settlement from bloodthirsty creatures.
73% of 30 Steam reviews are positivePlayers online now: 1$0.99
Anomaly Defenders
Anomaly Defenders is the closing installment of the Anomaly series.
76% of 413 Steam reviews are positive$0.99
Interstellar Pilot 2
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.
89% of 157 Steam reviews are positivePlayers online now: 3$0.99
Hidden gems like 飞跃星球（Eggy Space）
Galaxy Defense War
'Galaxy Defense War' is a roguelike tower defense game where you need to select suitable galactic principles from randomly dropped heroes and…
97% of 112 Steam reviews are positivePlayers online now: 1$7.72
Space Cycle
Space resources are the battleground for warring factions. As a Space Defense Officer, protect your faction's assets in a vast, hostile universe.
93% of 179 Steam reviews are positive$1.99
Minimalist Tower Defense
Build your defenses by day, then survive waves of enemies through the night in a clean, tense strategy game that is harder than it looks.
94% of 1,878 Steam reviews are positivePlayers online now: 12$4.99
Planetka
You play as a tiny sentient planet. Maintain your ecosystem, create new plant species and discover the hidden powers inside you.
89% of 183 Steam reviews are positiveFree
星际工业国：崛起
This is a idle game modeled on industrial building gameplay.
90% of 146 Steam reviews are positiveFree
Broken Universe - Tower Defense
Get ready to rethink all your defense strategies! Build barricades to stop monsters, or lure them into a maze and attack.
90% of 289 Steam reviews are positive$9.99
Stellar Settlers: Space Base Builder
Stellar Settlers is a chill space base/city builder and colony sim game.
69% of 749 Steam reviews are positivePlayers online now: 1$11.99
Desperate Place
Desperate Place is a strategic tower defense game where you play as a crew member who wakes up early on a damaged colonization starship.
66% of 253 Steam reviews are positive$10.99
Planet TD
6 different types of towers! 4 planets with different characteristics! 25 different enemies.
73% of 123 Steam reviews are positive$2.99
ROD: Revolt Of Defense
Explore a random generated space. Find artifacts and treasure maps. Build and develop your base on a flying platform.
80% of 526 Steam reviews are positive$0.99
Space Run
You play a daring space transporter, building and defending a cargo ship in real time as you race it through hostile space.
85% of 1,774 Steam reviews are positivePlayers online now: 1$4.99
Siege of Centauri
Defend against thousands of enemies in this explosive tower defense game.
64% of 352 Steam reviews are positive$14.99
Newest games like 飞跃星球（Eggy Space）
Orbital Tower Defence
Build towers on rotating orbital rings to defend your planet.
100% of 4 Steam reviews are positive$0.99
StarShip-DF
Build a massive multi-deck starship and lead colonists across the galaxy. Gather resources in space or land on alien worlds for supplies.
100% of 33 Steam reviews are positivePlayers online now: 1$5.99
Pixel Orbit
Incremental game about defending Earth from impending danger.
78% of 36 Steam reviews are positive$3.99
Bumper Blitz TD
Bumper Blitz TD redefines tower defense with gravity-powered physics and dynamic gameplay.
87% of 15 Steam reviews are positive$9.74
Fortified Space
Seize control of hostile planets in this nostalgic space sim and tower defense hybrid inspired by classic Flash games.
100% of 4 Steam reviews are positive$3.99
Stellarcraft
Stellarcraft is a sci-fi tower defense adventure: explore alien planets, gather resources, build defenses, and fend off waves of enemies, solo or in…
88% of 76 Steam reviews are positivePlayers online now: 1$9.99
Final Frontier Story
Dodge lasers and explore! Planetary Development Simulation
73% of 51 Steam reviews are positivePlayers online now: 5$8.99
Galaxy Defense War
'Galaxy Defense War' is a roguelike tower defense game where you need to select suitable galactic principles from randomly dropped heroes and…
97% of 112 Steam reviews are positivePlayers online now: 1$7.72
Neon Colony
Neon Colony is an isometric tower defense game where you build your own road to access and harvest the resources of an alien planet.
100% of 5 Steam reviews are positive$12.99
Tempest Tower
Tempest Tower is an action packed tower defense platformer where you must brawl with incoming hordes of Creepers while herding the local critters to…
74% of 27 Steam reviews are positive$14.99
Desperate Place
Desperate Place is a strategic tower defense game where you play as a crew member who wakes up early on a damaged colonization starship.
66% of 253 Steam reviews are positive$10.99
Stellar Settlers: Space Base Builder
Stellar Settlers is a chill space base/city builder and colony sim game.
69% of 749 Steam reviews are positivePlayers online now: 1$11.99