Top similar games like DEFENDER OF EARTH VS THE ALIEN ARMADA:
DEFENDER OF EARTH VS THE ALIEN ARMADA $1.99
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.
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Idle Monster TDFREE
An endless Tower Defense game of epic Monsters vs evil War Machines. Unlock and upgrade tons of unique elemental Monsters (Water, Air, Earth, and Fire) to defend your home from an infinite swarm of robots. Strategize the most effective placement of Monsters to synergize their elemental abilities.
Otherwar$5.99
OTHERWAR is an surprising mash-up of Tower Defense & Bullet Hell games. Build and manage fortifications to defend the Gate of Heaven against the Hordes of Hell, while soaring over the battlefields as the defender Angel, and meet the monsters in direct combat!
Defenders Guild$3.99
A thrilling fantasy tower defense game! Instead of towers, you'll recruit and lead brave adventurers in the fight against hordes of evil enemies. Do you have what it takes to lead the best guild of defenders and safeguard the land from the growing darkness?
Riftbound$19.99
Riftbound is a rogue-lite action strategy game with deck building. Fight the undead legion, forge your path, and gain powerful permanent progression. Godlike difficulty modes, mutators, heroic units, elite enemies, and unlockable rewards - endless replayability awaits!
ReEarth$7.99
ReEarth is an exciting TD & (RTS) indie game. Here, you will play as humanity's last hope. You will fend off the oncoming swarms by continuously building your base and dispatching various types of units. Prepare for the challenge and save the future of humanity!
Idle TD: Heroes vs ZombiesFREE
An endless Tower Defense game of epic heroes vs evil zombies. Unlock and upgrade countless Heroes, artifacts, and technologies to defend against the infinite zombie swarms. Strategize the most effective placement of Heroes to synergize their skills and abilities.
Bitosphere$2.99
Embark on a Galactic Adventure in Bitosphere a Captivating 1-bit Clicker Game
Invasion, Tales of Tower Defense$2.99
Embark on an endless tower defense journey in "Invasion." Procedurally generated maps, unlimited levels, and strategic tower upgrades await. Defend against relentless waves and unlock a diverse array of towers. Your choices shape the fate of the realm!
Defenders Glory$9.99
Defenders Glory is a Fantasy Tower Defense game with simple but deep gameplay elements: Simple mechanics that allow for near-infinite ways to be applied, allowing it to be suitable to anyone, beginners can just sit down and play, while Veterans can constantly improve themselves and their tactics.
War Beasts$2.99
Free layout 3D tower defense war game. There are tanks and Titans on land, battleships and swarms in the sky, and missiles in space. In the face of the enemy, your weapons are not only machine guns, cannons, rockets, but also lasers, cruise missiles and interceptor satellites.
Solar ShowdownFREE
Welcome to Solar Showdown - the ultimate 2-player couch competitive game where you harvest solar power, build defenses, and produce minions to attack your opponent's towers. Generate enough power to activate your base's ultimate weapon and blow up your rival! Grow, build, defend, and dominate!
Dungeon Defenders: Awakened$29.99
Dungeon Defenders: Awakened is co-op Tower Defense combined with epic Action RPG combat. You’re able to join forces with up to four players to take on a never-ending army of orcs, demons, and dragons! Are your defenses strong enough to save the world of Etheria?
Dungeon Defenders$14.99
Create a hero from one of four classes to save Etheria in this 4-player coop Tower Defense Action-RPG. Includes Steam exclusive Portal gun & TF2 familiars!
Guardians of the Sanctree$19.99
You and allies, avian inhabitants of Sanctree City, build structures and production lines on the tree, crafting weapons to fend off subterranean insects. Defense is just the start—dig deeper, destroy nests, fortify new defenses against escalating threats for an impregnable stronghold.
Human Defense [RTS]$1.99
The earth was invaded by aliens, and human beings resisted alien species and deduced the most meticulous battle outcome with the simplest control method
Siege the Day$12.99
Siege the Day is a tactical real-time combat castle builder game. Take control of your castle's defenses and fortifications. Engage in epic 1-on-1 battles! Build your ultimate castle and use catapults, cannons, magic spells, and dragons to wage war against other players.
希望之城 The City Of Hope$6.99
A light city-building game that combines elements of card games and tower defense, where players must survive daily enemy attacks and gradually grow their strength to ultimately defeat powerful invaders.
Okashi TowersFREE
Okashi Towers is a Real Time Strategy game with Tower Defense elements. Gather candy resources to build tower units or go on offense and summon creatures to attack other player bases. Join with up to 8 players and choose one of the four factions that fits your play style best
The Red$4.99
Debt-ridden and desperate? Get out of the red and into The Red! Join the Red Horizons on Mars as an Extraction Security Associate and pay off your debts by defending your way to wealth in this ironic first-person-shooter/tower-defensy/existential-horror adventure!
Defend from Candyland!$7.99
Step into the world of Defend from Candyland! where retro tower defense meets strategic depth. Plant and upgrade trees, use powerful buffs, and reveal enemy paths to shield Eden from waves of candy invaders. Master the challenge now!
Bad North: Jotunn Edition$14.99
Bad North is a charming but brutal real-time tactics roguelite. Defend your idyllic island kingdom against a horde of Viking invaders, as you lead the desperate exodus of your people. Command your loyal subjects to take full tactical advantage of the unique shape of each island.
Special Forces War - Zombie AttackFREE
"Special Forces War - Zombie Attack" is a very fun and interesting casual strategy tower defense game. In the game, you can control your own soldiers to start a battle with zombies. The game content is rich and exciting, full of fun, and can bring a relaxing and enjoyable game experience.
No Heroes Here 2$19.99
A group of non-adventurers is the last hope in defending the castle in this chaotic co-op tower defense game with roguelike features. With up to 4 players, your party must organize the castle, work as a team to craft ammo, and shoot at enemies to protect your kingdom!
Nuke Them All$19.99
An RTS classic reborn with a twist. Time is of the essence, Commander! Capture the flags, conquer the territories, and eliminate the enemy fort. And finally, nuke them all! This old-school sci-fi Indie real time strategy game, crafted by devoted team, revives the genre's enduring allure.
Idle Monster TD: EvolvedFREE
Evolve epic monsters and crush puny humans in this endless idle tower defense game! Unlock, upgrade, and evolve over 150 unique monsters and pets, ranging from cute and colorful flower creatures to epic fire breathing dragons, to assemble the ultimate team against the endless waves of enemies.
Sierra Ops - Space Strategy Visual Novel$14.99
Woefully ill-prepared, play as Captain Fahrenheit as they uncover long-lost secrets new and old, while fighting in an impossible war between Earth and Mars.
Asteroid Core$0.99
You are isolated on a small meteor and need to build a fire to escape before being destroyed by aliens. Use your limited space to create machines and obtain more and more resources. Enjoy this mix of puzzles, tower defense and incremental gameplay.
Chrysalis$9.99
Defend your Chrysalis from growing hordes of monsters in this hybrid game that combines elements of tower defense, survival, and roguelike RPGs. Explore procedurally generated levels, possess and control animals, and grow deadly gardens. How far can you get before the next wave of monsters?
Expand & Exterminate: Terrytorial Disputes - Endless Base Defense$9.99
The best elements of Real-Time Strategy (RTS) and Tower Defense genres combined into a new Base Defense game. Defend against countless waves of enemies while you expand your base, gather resources, and research technologies to defeat the ever strengthening enemy units.
Guardian Grids$3.99
A simple and fun tower defense game! Combining light card elements with the fun of randomness.
Rogue Station Defense$7.99
A rogue-like sci-fi Tower Defense strategy game with infinite replayability!
Monster Tiles TD: Tower WarsFREE
Free Tower Defense game with unique roguelike elements. Custom base building mechanics allow you to create your own base and maze with tiles earned after each wave. Unleash a variety of monsters, each with its own evolution path and unique skills, and evolve them into legendary creatures.
Siege Island$4.99
Step into the world of Siege Island, a tribute to the classic arcade game "Rampart". Prepare yourself for an immersive 3D action-puzzle game that will test your strategic skills and reflexes. As the Orcish fleet draws near, the duty to safeguard your island from their assaults is yours.
Sunstone War$7.99
Sunstone War is a unique Action game with Tower Defense element where you can carry EVERYTHING! Move towers, toss away enemies, carry obstacles, upgrade skills and journey through lands to protect your village from calamity!
Towers & Goblins: The Last Stand$11.99
Build towers, manage resources, and lead units to defend your kingdom against goblins. Every decision you make determines your kingdom's fate.
Cliff Empire$14.99
After a nuclear war life on the surface became impossible. A 300m thick radioactive fog covered the Earth. We are looking for bold active people to manage the process of restoring life on Earth. Join!
Isle of Arrows$12.99
Isle of Arrows is a Puzzle Tower Defense game in which you build a fortress in the sky. Place towers, expand the isle, and build your own paths. Can you find the perfect spot for each tile to beat the RNG and defend against waves of invaders?
AI War 2$19.99
The most devious and acclaimed artificial intelligence in strategy gaming is better than ever. A grand strategy/RTS hybrid that reverses many conventions of both genres. Take territory without attracting attention, build your empire with care, and adapt to an ever-evolving galactic battleground.
Live Day 活着的日子$4.99
This is a game that combines construction, shooting, and tower defense with a third person apocalyptic theme. In the apocalyptic environment, let players build apocalyptic strongholds that are suitable for their survival.
Elemental Dog Defense$1.99
A PvP Tower Defense game where you transmute and deploy elemental Dogs to devise the ultimate strategy for each battle.
Notice Me Leena-senpai!$7.99
Oh no! The Demon Lord is attacking! Help Leena-senpai defend her school and city against the Demon Lords minions!
Grimalkin: Solar Defense Force$7.99
Command a Rag Tag fleet of Grimalkin Vessels against the evil from Beyond. Lead your Grimalkins to Victory or Suffer Ultimate Defeat and lose earth to the greatest evil known to Grimalkin-kind the Evil Ancient Space Faring Empire.
The Last Spell$24.99
Defend the last bastion of humanity with your squad of heroes! Exterminate fiendish monsters with magic and brute force by night and re-build your battered city defenses by day in this tactical RPG with rogue-lite mechanics.
Serious Sam VR: The Last Hope$29.99
Serious Sam is back! And this time it's REAL!
The Riftbreaker: PrologueFREE
The Riftbreaker: Prologue allows you to experience the events taking place before the story campaign of the main game. Explore an entirely new world. Gather resources. Build up a base. Defend yourself from thousands of alien creatures.
Starship Destroyer$0.99
A sci-fi space vehicle combat game, where the player must defend their capital ship from being destroyed, while attempting to destroy the alien force's own capital ship!
Legion TD 2 - Multiplayer Tower Defense$24.99
An infinitely replayable multiplayer and single-player tower defense. Defend against waves of enemies and destroy the enemy's king before they destroy yours. Legion TD 2 is a one-of-a-kind game of tactics, teamwork, and prediction. Party as 1-8 players.
The Riftbreaker$29.99
The Riftbreaker™ is a base-building, survival game with Action-RPG elements. You are an elite scientist/commando inside an advanced Mecha-Suit capable of dimensional rift travel. Hack & slash countless enemies. Build up your base, collect samples and research new inventions to survive.
Incursion: Reforged$4.99
Incursion is an indie FPS that aims for a unique wave survival experience with class-based combat for both co-op and singleplayer. Fight alongside strangers or friends and take advantage of unique weapon combinations, perks, and classes to win in this solo-developed indie title.
Pentasma$0.99
Pentasma is a side-scrolling arcade shooter inspired by Williams Electronics' 1981 classic 'Defender'. Protect The terraforming Humanoids from the deadly Aliens and raid the Alien planets to keep the galaxy peaceful!
The Last Archwing$4.99
The Last Archwing is a fast paced, vertically scrolling space shooter. Will you and your friends take up the mantle as Earth's last defenders and thwart the plans of the evil Emperor Zarkhan?