Planet TD
6 different types of towers! 4 planets with different characteristics! 25 different enemies.
73% of 123 Steam reviews are positive$2.99
Games like Space Base
If the retro and colorful rhythm of Space Base stuck with you, this helps. These games are worth a look next.
Planet TD
6 different types of towers! 4 planets with different characteristics! 25 different enemies. Drones, Tanks, Biorobotic enemies and many different ground and air vehicles! Snowy and Glacial maps, Desert and Arid lands! Prepare to defend the solar system against invaders!
Colorful, Replayable
73% of 123 Steam reviews are positive$2.99Tower Defense: Infinite War
In the far future, people build a base on a strange planet they don't know about to protect their limited resources. Protect your base from the incessant invasion of extraterrestrial beings!
Retro, Colorful, Replayable
46% of 37 Steam reviews are positivePlayers online now: 2FreeSpace 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, Tense
93% of 179 Steam reviews are positive$1.99Orbital Tower Defence
Build towers on rotating orbital rings to defend your planet. Discover powerful upgrades, battle elite enemies and bosses, and master unique planets with distinct challenges.
Colorful, Replayable, Tense
100% of 4 Steam reviews are positive$0.99Zone 10
Take command of your faction's only Starbase in Zone 10. In this innovative, arcade style, tower defense game you can build your own maze using specialty blocks and defend your Starbase against spaceships and ground troops that can blow up parts of your defenses.
Retro, Colorful, Replayable
89% of 19 Steam reviews are positiveFreeUIFO DEFENSE HD
UIFO Defense has a special gameplay of tower defense. Utilize the terrain and different turrets to eliminate alien invaders and protect the crystal cores which are critical to science and technology of your civilization.
Retro, Tense
71% of 41 Steam reviews are positive$4.99Revenge of the Titans
The ultimate mash-up of Real-time Strategy and Tower Defense!
Retro, Colorful, Replayable
81% of 665 Steam reviews are positivePlayers online now: 3$14.99Galaxy 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 across handcrafted and procedural maps.
Retro, Colorful, Replayable
$0.99Space Run
A real-time spaceship construction strategy game with a twist on tower defense: you are a space courier hauling valuable cargo through asteroid fields and pirate ambushes, building your ship as you fly. Fast, tense and endlessly replayable, with a dry sense of humour to match the danger.
Retro, Colorful, Replayable
85% of 1,774 Steam reviews are positivePlayers online now: 1$4.99Colony Defense - Tower Defense
Atmospheric unique minimalist tower base defense game. Highly addictive.
Tense
100% of 2 Steam reviews are positive$6.98Exo 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, Tense
75% of 8 Steam reviews are positive$19.99Rogue Station Defense
A rogue-like sci-fi Tower Defense strategy game with infinite replayability!
Retro, Replayable
100% of 5 Steam reviews are positive$7.99
Cheaper than Space Base
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
Orbital Tower Defence
Build towers on rotating orbital rings to defend your planet.
100% of 4 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
Slime Pandemic TD
Defend the galaxy against a slimey pandemic in this classic Tower Defence game.
100% of 18 Steam reviews are positive$3.99
Shapes: The Tower Defense Game
Strategize your base to build and defend off waves of enemies in an on going battle. Plan, Attack, Defend and Grow!
100% of 1 Steam reviews are positive$1.99
DEFENDER OF EARTH VS THE ALIEN ARMADA
Defender of Earth vs The Alien Armada is an exciting space themed tower defense game!
50% of 2 Steam reviews are positive$1.99
Space Base Defense
A strategic and action-packed base survival game where you mine crystals, build units, and defend your base against waves of UFOs.
33% of 3 Steam reviews are positive$2.99
Forbidden Planet
"Forbidden Planet" is a Space Strategy and Tower Defence like Game.
51% of 139 Steam reviews are positive$0.74
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
Space Tower Defense
A strategic space tower-defense game. Enemies detect, warn, and try to bypass defenses, forcing you to adapt.
$3.99
IMM Defense
This is a classic tower defense game. The alien ship is ready to invade this lovely planet.
40% of 5 Steam reviews are positive$0.99
Hidden gems like Space Base
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
Oil and Sand
An exciting tower defense game where you have to defend your island from the invasion of enemy forces.
93% of 115 Steam reviews are positiveFree
Tower Dominion
Shape the battlefield into kill zones, hold the line against waves of aliens, and rebuild your defenses every run.
85% of 5,254 Steam reviews are positivePlayers online now: 439$17.49
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
Colony Siege
Colony Siege combines the best of RTS and tower defense, including base building, mazing, and unit physics.
91% of 199 Steam reviews are positive$19.99
Planet TD
6 different types of towers! 4 planets with different characteristics! 25 different enemies.
73% of 123 Steam reviews are positive$2.99
Ancient Planet Tower Defense
Ancient Planet is classic tower defense game. The stronghold of an ancient civilization has been invaded by hordes of alien raiders.
84% of 878 Steam reviews are positivePlayers online now: 8$4.99
Alien Robot Monsters
Epic sci-fi tower defense action with 16-bit era look and feel, pitching your colonists against an almost endless horde of hostile alien robots who…
83% of 120 Steam reviews are positive$5.99
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
Radiant Defense
MILLIONS OF ALIENS WILL DIE!Radiant Defense is a tower defense game set in a vibrant universe invaded by countless alien hordes.Build your space…
82% of 141 Steam reviews are positive$9.99
Beware Planet Earth
Beware Planet Earth! is a beguiling mix of classic tower defense and time management coming to PC via Steam for the first time.
80% of 177 Steam reviews are positive$4.99
Newest games like Space Base
Orbital Tower Defence
Build towers on rotating orbital rings to defend your planet.
100% of 4 Steam reviews are positive$0.99
Rise of the Cones: Planetary Defense
Rise of the Cones is a tower defense game where a relentless army of cones is marching toward your base. They will not stop.
83% of 46 Steam reviews are positive$9.99
Colony Defense - Tower Defense
Atmospheric unique minimalist tower base defense game. Highly addictive.
100% of 2 Steam reviews are positive$6.98
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
Tower Dominion
Shape the battlefield into kill zones, hold the line against waves of aliens, and rebuild your defenses every run.
85% of 5,254 Steam reviews are positivePlayers online now: 439$17.49
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
XENOBREAKERS: Classic Tower Defense
Defend Billy and his crew on their way to the extraction zone! You have been authorized to use the defense system.
82% of 68 Steam reviews are positive$4.99
Totally Defenceless
Totally Defenceless is a wave-based tower defence game. You will need to protect your energy cores from the invading alien bugs by strategically…
100% of 4 Steam reviews are positive$7.99
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
Rogue Station Defense
A rogue-like sci-fi Tower Defense strategy game with infinite replayability!
100% of 5 Steam reviews are positive$7.99
Defender Bros
Prepare your defenses during the day and survive until dawn.
91% of 65 Steam reviews are positive$19.99
Light Towers
A Tower Defense Action game, set in a bright geometric world.
100% of 4 Steam reviews are positive$4.99