Games like Space Base Defense

Loved how colorful and tense Space Base Defense can get? These games could fill that gap nicely.

Space 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, Tense, Replayable
$4.99
Tower Defense Ultimate: Crashfall Protocol
Defend your base against relentless alien waves in a sci-fi tower defense strategy game. Build deadly kill zones, unlock new towers and special abilities, and adapt your loadout to survive escalating assaults across a hostile campaign.
Tense, Replayable
$11.99
Colony Defense - Tower Defense
Atmospheric unique minimalist tower base defense game. Highly addictive.
Tense
100% of 2 Steam reviews are positive$6.98
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. Allocate resources, upgrade defenses, and repel relentless enemy attacks! With over 50 unique units and deep strategy, experience real-time tower defense!
Colorful, Tense, Replayable
93% of 179 Steam reviews are positive$1.99
Unearthing Invasions
A 3d tower defense game set in space. Protect the last resource outposts from the ongoing Alien attacks! Can you hold out in these ever increasing difficult waves of enemies and protect the last of your resources and Energy?
Colorful, Tense, Replayable
100% of 4 Steam reviews are positive$9.99
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 4-player co-op. 🚀
Colorful, Tense, Replayable
88% of 76 Steam reviews are positivePlayers online now: 1$9.99
UIFO 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.
Tense
71% of 41 Steam reviews are positive$4.99
Cosmic Resistance
You are the fleet commander. Different alien races invade the universe. Find and fight for saving scattered human colonies, integrate them in your ship fleet to help you create a powerful army that will liberate the universe and humankind from extinction.
Colorful
91% of 11 Steam reviews are positive$7.99
Space Cheese Defenders
A tower defense game with RTS elements about gathering cheese in space, where mobile carriers are able to deploy smaller spacecraft. Collect cheese to buy and upgrade spaceships and use each type to customize your playstyle and defend your base!
Colorful, Tense
100% of 8 Steam reviews are positiveFree
Xeno Rangers
In this Coop Platformer Defense game, you must defend your HQ from enemy hordes by building your base and defenses wisely, while you fight using weapons & items acquired and upgraded along the way.
Colorful, Tense, Replayable
100% of 4 Steam reviews are positive$11.99
Defense Protocol
Do you have the resources and upgrades you need to leave the planet in this roguelike genre where you try to defend your base, survive, gather the necessary resources, and upgrade your technology while trying to repair your spaceship on an uncharted planet you crash-landed on?
Tense, Replayable
0% of 1 Steam reviews are positive$1.99
Mine Defender
Fight with AI-controlled drones, explore the mine and extract resources, upgrade your base and plan your defense. Protect your mine
Tense, Replayable
0% of 1 Steam reviews are positive$2.99

Cheaper than Space Base Defense

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.

$1.99

Defense Protocol

Do you have the resources and upgrades you need to leave the planet in this roguelike genre where you try to defend your base, survive, gather the…

$1.99

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

Space Battle

Pilot your ship through dangerous space and defend against relentless imperial attacks in Space Battle, a high-intensity round-based strategy game.

$1.99

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.

$0.99

飞跃星球（Eggy Space）

A light tower defense game with unique planet exploration. Defend against aliens, collect resources, and build a new home.

$1.99

Eldritch Bulwark

Protect the Crabs!

$0.99

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

ORBITAL BATTLE

"ORBITAL BATTLE" is a real-time strategy game that combines resource management, strategic planning, and defense elements.

$1.99

Alien Land

This is a special simulation tower defense game, where you need to command each citizen to build a base.

$0.99

DEFENDER OF EARTH VS THE ALIEN ARMADA

Defender of Earth vs The Alien Armada is an exciting space themed tower defense game!

$1.99

The Last Miner

Dig deep into a planet, mine precious resources, and upgrade your gear to survive endless waves of enemies. Find a way to escape this Planet

$2.40

Hidden gems like Space Base Defense

Project Tomorrow

Wake on a ruined planet, terraform it back to life and fight off everything that wants it dead again.

$5.94

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.

$1.99

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.

$10.99

Galaxy Control: 3D Strategy

Build your base and battle with other players to control the galaxy! Galaxy Control is an ultimate space combat strategy game with fast-paced combats!

Free