Games like Illegal Alien Tower Defense

Looking for that same funny and minimalist spark as Illegal Alien Tower Defense? Give these games a try when the craving hits.

Invaders
This game is a 3d Tower Defense created by a highschooler. It was developed by Unity and was accompanied by a lot of youtube tutorials.
Tense
76% of 17 Steam reviews are positiveFree
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.
Minimalist, Tense
71% of 41 Steam reviews are positive$4.99
Invader TD
Invader TD is a side scroller tower defense, where the player is in the role of an alien race with the purpose of infecting and dominating the earth, you must protect yourself from the attacks of the humans, who are trying to destroy you.
87% of 30 Steam reviews are positive$2.99
Zero Conflict TD
Prepare for an out-of-this-world gaming experience in "Zero Conflict TD," the ultimate tower defense game that pits you against a relentless alien invasion! The fate of Earth hangs in the balance, and it's up to you to lead the charge and protect our planet from these extraterrestrial aggressors.
0% of 1 Steam reviews are positive$9.99
Faith & Shield:4044 Tower Defense
Faith & Shield: 4044 Tower Defense game, where you protect the human settlement from the incoming invaders, robots and other creatures, never seen before on our planet.
Tense
45% of 20 Steam reviews are positive$4.99
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. Save your cows from the Martian invasion by building an effective defense using towers, traps and objects, and also by firing your Zapper directly at the invading force of little green men!
Funny
80% of 178 Steam reviews are positive$4.99
DEFENDER OF EARTH VS THE ALIEN ARMADA
Defender of Earth vs The Alien Armada is an exciting space themed tower defense game! You play as a general designated as the Defender of Earth, and you will utilize space stations and battle platforms to deploy towers to defend different quadrants of space against 3 alien races.
Tense
50% of 2 Steam reviews are positive$1.99
Alien Land
This is a special simulation tower defense game, where you need to command each citizen to build a base. To produce food, one also needs to resist monsters from the night.if you want to pass the level, it has a certain difficulty and requires you to have a certain strategy and observation rules.
100% of 3 Steam reviews are positive$0.99
Alien Shooter TD
Innovative Tower Defense inspired by legendary Alien Shooter series! The game was created in keeping with the best traditions of Sigma`s games, no concessions of any kind - everything is just like in real life!
Tense
84% of 677 Steam reviews are positivePlayers online now: 1$9.99
Sunset Planet
Sunset Planet is tower defence game. Your beautiful planet has been invaded by alien invaders. Use the mighty power of the ancients and repel the attack of enemy creatures!
Minimalist
88% of 8 Steam reviews are positive$0.99
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. Use powerful technologies of the Ancient and repel the attack of the enemy's armies!
Minimalist
84% of 878 Steam reviews are positivePlayers online now: 9$1.69
Anomaly Defenders
Anomaly Defenders is the closing installment of the Anomaly series. The original incarnation of the Tower Offense sub-genre had players controlling humans fighting alien invaders. Now, the tables have turned. The human counterattack is underway and the alien homeworld is under threat.
Tense
76% of 413 Steam reviews are positive$9.99

Cheaper than Illegal Alien Tower Defense

Alien Land

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

$0.99

Sunset Planet

Sunset Planet is tower defence game. Your beautiful planet has been invaded by alien invaders.

$0.99

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.

$1.69

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

Save the settlers

This is a tower defense game in which you have to defend a settlement from bloodthirsty creatures.

$0.99

ARC Alien Raid Combat

A game based on the classic Tower Defense style, assemble your best combination to overcome obstacles, can you do it?

$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

The Last Hearth Defense

Your mission in this game is to outwit, outmaneuver, and outlast the enemy waves using smart tactics and powerful upgrades.

$0.99

Plastic Rebellion

Change your playground into a battlefield. Square off against an out-of-control 3D Printer with an army of your old-school toys, and stop the…

$9.99

主动防御(Active Defense)

This is a strategy tower defense game where players need to choose the appropriate defense towers based on different maps and enemies.

$0.99

Sciware Defense

A 3D FPS/TPS Tower Defence game in a sci-fi world, defend your base from corrupted robots and unlock better turrets

$0.99

IMM Defense

This is a classic tower defense game. The alien ship is ready to invade this lovely planet.

$0.99

Hidden gems like Illegal Alien Tower Defense

Last Stand: Defense

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

$5.99

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

Planet TD

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

$2.99

Defense high

"Defend your land from invading creatures in Defense High! Place diverse towers strategically, mine enemy paths, collect coins, and upgrade towers…

$4.99

Decently Bad Tower Defense

This is a bad short Tower Defense game made from scratch as a new game developer. This game does all the basic things you expect from a tower defense.

Free