
First Day: Home Defender
Build and protect your home after a nuclear apocalypse!
Remember how tense and fast-paced Homeworld Defense felt at its best? These games could fill that gap nicely.
"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.
Tense
Take command of an orbiting defense satellite in this action-packed planetary defense shooter. Blast away at waves of incoming asteroids and crafty aliens before they destroy your planet. Scavenge powerful weapons from vanquished alien ships and turn them against your foes. How long can you survive?
Tense, Fast-paced
Discover new worlds and build up mighty defences as you find your new home Above the Stars!
Fast-paced
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.
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!
Tense, Fast-paced
You are in the control of the Planetary Defense System of Earth. Your job is to protect Earth using turrets orbitting the planet. You have gotten full control of the planet and you are responsible to keep the planet intact.
Fast-paced
Explore a random generated space. Find artifacts and treasure maps. Build and develop your base on a flying platform. Attack or defend against enemies and save the universe!
Save Our Solar System brings a fresh look on the tower defense genre. Shape the world around you with a lovable playable character. Harvest metal to upgrade towers. Collect rocket parts to advance to further planets. Fend off endless waves of asteroids.
Tense, Fast-paced
Galactic Missile Defense is a shooter and tower defense game, where you must protect Earth from the invading Martians that declared war on our planet just because a space rover accidentally ruined their picnic!
Tense, Fast-paced
An incredible asteroid assault is about to begin! Take command of the planet's defenses and prevent extinction in this planetary Tower Defense game.
Tense, Fast-paced
Defend your planets from planetary colliders and alien attacks in this breakout-style game! Use your intelligence to protect the planets!
Tense, Fast-paced
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.
Tense

Build and protect your home after a nuclear apocalypse!

The kingdom of Cubia call for your help, come to this vast kingdom where you will face strong enemies and hard challenges, you are the chosen to…

Relaxing Idle · Casual Mining · Bring Everyone Home! "Insufficient energy to return... but there's ore ahead!"

Robowars is back on Steam! Fight off troops of droids for freedom and honor in our classical tower defense game.

An epic struggle for control!

Martians want to regain control of their planet! But we have not yet finished exploiting Martian mining resources...

You left alone camping in the mountains ... But during this time a virus has invaded the country and a cubic horde is heading towards you!

This is a simple tower defend like game,click mouse left button to shoot enemies, make sure you don't get hurt. Defeat Neomorph, fight with ladies!

Lead your clan from a small settlement all the way to the launch of a colony ship.

Bladestar is a sci-fi cinematic action shooter featuring visually rich worlds with potentially endless enemies on each level.

ReRoad is a Tower Defense game with a brand new concept where the players dig their own paths.

Anomaly Warzone Earth Mobile Campaign continues Steam's Anomaly Warzone Earth in an extra 15-level campaign.

Space resources are the battleground for warring factions. As a Space Defense Officer, protect your faction's assets in a vast, hostile universe.

You play as a tiny sentient planet. Maintain your ecosystem, create new plant species and discover the hidden powers inside you.

Stellar Initiative is a roguelike tower defense game where you land on the planet and use your orbit ship to deliver buildings and support you with…

Desperate Place is a strategic tower defense game where you play as a crew member who wakes up early on a damaged colonization starship.

6 different types of towers! 4 planets with different characteristics! 25 different enemies.

You defend a droid planet from orbit-scale invasions, firing the Prime Cannon while your turrets and droids hold the line.

Explore a random generated space. Find artifacts and treasure maps. Build and develop your base on a flying platform.

Ancient Planet is classic tower defense game. The stronghold of an ancient civilization has been invaded by hordes of alien raiders.

Defend against thousands of enemies in this explosive tower defense game.

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…

Beware Planet Earth! is a beguiling mix of classic tower defense and time management coming to PC via Steam for the first time.

The biggest installment of the award winning Sentinel sci-fi tower defense series now on PC!

Incremental game about protecting solar system. Destroy asteroids with a huge arsenal of weapons, upgrade your skills through a massive skill tree…

Incremental game about defending Earth from impending danger.

Defend the embers of hope in this roguelike strategy game set in a post-apocalyptic world.

Stellarcraft is a sci-fi tower defense adventure: explore alien planets, gather resources, build defenses, and fend off waves of enemies, solo or in…

On the cosmic frontier, humanity has fought alien species for a century.

'Galaxy Defense War' is a roguelike tower defense game where you need to select suitable galactic principles from randomly dropped heroes and…

It’s a defense game where you create your own strategy, grow your units, and defend against enemies.

Desperate Place is a strategic tower defense game where you play as a crew member who wakes up early on a damaged colonization starship.

"Last Stand:Defense" is a tower defense-themed Rogue-like game.

Space resources are the battleground for warring factions. As a Space Defense Officer, protect your faction's assets in a vast, hostile universe.

You are isolated on a small meteor and need to build a fire to escape before being destroyed by aliens.

Explore alien planets to mine resources, kill alien insects, build defense turrets, and survive waves of insect attacks across the galactic frontier.