
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.
60+ similar titles based on shared tags and player behavior. Themes include Strategy, Tower Defense, Singleplayer, Indie.

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.

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 resist alien attacks and guard the Milky Way and solar system.

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?
A tower defense strategy science fiction game, in the future era, when aliens invade the solar system, players need to build various turrets to resist alien attacks and guard the Milky Way and solar system.
Why similar: Tower Defense 33.4%, Strategy 13.7%, 3D Platformer 9.9%, Casual 9.5%, Space 8.5%
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?
Why similar: Tower Defense 30.1%, Arcade 10.9%, Space 10.9%, Strategy 8.8%, Aliens 8.7%
Space Nature Attack TD is a tower defense where you can level up and customize tower stats and elements to your liking! Fend off various types of alien creatures across many different sci-fi planet themed maps, biomes, and difficulties!
Why similar: Tower Defense 37.4%, Strategy 15.4%, Space 9.3%, Real Time Tactics 9.1%, Aliens 8.9%
Save the Dungeon! Is a tower defense game from the perspective of the villain. Upgrade your minions to hold back the relentless hordes of heroes.
Why similar: Tower Defense 35.2%, Strategy 18%, Real Time Tactics 18%, Casual 14.4%, Top-Down 5.8%
Defend your base by placing towers strategically, forming interconnected systems that depend on one another. Adapt your strategy to different environments and enemy waves, exploiting their weaknesses. In System Status: SuperCritical, resources are scarce and critical failure is always an option.
Why similar: Tower Defense 31.9%, Real Time Tactics 14.2%, Space 14%, Strategy 12.6%, Arcade 9.2%
Spaceships and Cellular Automata is a tower defense game set in space! Place different towers to defend your ship against the waves of aliens. The enemies are simulated based on Conway's Game of Life. Even just one of your bullets is enough to cause a destabilizing chain reaction to destroy them!
Why similar: Tower Defense 41.3%, Space 18.6%, Strategy 15.5%, Arcade 10.7%, Aliens 8.6%
Toon TD is a free to play Tower Defense from Gee Studios. Defend your castle. Explore new environments. Face fierce bosses. Develop new and unique strategies for every level in this next evolution of the Tower Defense genre.
Why similar: Tower Defense 37.1%, Strategy 19%, Casual 14.9%, Arcade 14.3%, Linear 6.7%
Build towers and learn abilities to defend against swarms of hundreds of on-screen hostile alien creatures. Choose between sets of randomized upgrades that both upgrade you and the alien swarm. From enormous explosions to far-reaching flamethrowers, no two games are the same.
Why similar: Tower Defense 29.6%, Real Time Tactics 12.8%, Aliens 12.5%, Arcade 10.8%, Strategy 10%
A game based on the classic Tower Defense style, assemble your best combination to overcome obstacles, can you do it?
Why similar: Tower Defense 33.8%, Real Time Tactics 17.2%, Casual 11.8%, Strategy 7.9%, Futuristic 6%
Bumper Blitz TD redefines tower defense with gravity-powered physics and dynamic gameplay. Build, upgrade, and bounce enemies away in this thrilling fusion of strategy and action!
Why similar: Tower Defense 45.5%, Strategy 12.1%, Space 11.3%, Aliens 11.2%, Casual 9.8%
In Tower Defense 3D, the enemy may walk on the wall, and you can also build the tower on the wall, so you have to consider No longer just a plane, but the entire space.
Why similar: Tower Defense 48.6%, 3D Platformer 14%, Strategy 13.4%, Casual 12.6%, 3D 7.7%
4 turrets, a ship in peril, and waves of enemies. Hold the line and defend the ship, robot.
Why similar: Tower Defense 20.7%, Strategy 19.1%, Arcade 14.7%, Space 12.4%, Casual 12.2%
Defend the solar system from fearsome aliens by sending satellites into orbit in revolutionary tower defense action!
Why similar: Tower Defense 64.7%, Strategy 12.9%, Casual 6.4%, Aliens 5.9%, Space 5.4%
The task is very simple - do not let the enemy forces pass on the way to your base. Enemies move along a marked path while you place defense towers along the path.
Why similar: Tower Defense 39%, Strategy 20.6%, Real Time Tactics 19.8%, Casual 16.6%, Singleplayer 2.7%
A sci-fi tower defense game. Build an army of towers to stop waves of a lured alien species called Zektid's.
Why similar: Tower Defense 33.8%, Real Time Tactics 17.4%, Strategy 17%, Aliens 10.9%, Space 9.6%
Aliens Falling from the Sky? reimagines tower defense with intense action and tactical depth. Build, upgrade, and combine powerful towers to stop relentless alien waves — because somehow, saving the world is your problem now.
Why similar: Tower Defense 42.9%, Space 17.5%, Aliens 13.3%, Strategy 12.5%, Top-Down 9.1%
Space Run is a «real-time spaceship construction strategy game». Space Run takes the well-known Tower Defense-style gameplay and twists it, challenging you to manage and protect a spaceship and its cargo against the hazards of deep space!
Why similar: Tower Defense 57.6%, Space 22%, Strategy 14.2%, Sci-fi 3.4%, Indie 1.6%
Strategy, timing and fortune: Novel and immersive tower defense game experience!
Why similar: Tower Defense 29.4%, Real Time Tactics 15.4%, Space 12.5%, Strategy 10.8%, Casual 7.6%
Chrono Crystal is a tower defense game. Spanning across 5 major regions with the Prince and facing numerous challenges, an unprecedented great war is about to break out. Build your towers, upgrade your heroes, and defend your crystal against waves of enemies—until the countdown timer runs out!
Why similar: Tower Defense 43.5%, Strategy 22%, Real Time Tactics 17.7%, Linear 7.6%, Casual 5.2%
Project Myriad 2 is a tower defense strategy game. Build towers on a grid of hexagons floating in space. 35 levels with unique tiles and mechanics each providing a unique challenge. 3 difficulty levels including extreme mode which has never ending waves of enemies. Strive for your new high score!
Why similar: Tower Defense 42.9%, Strategy 16.3%, Arcade 14.3%, Casual 8.9%, Space 7.1%
An atmospheric tower defense game with intentionally imbalanced mechanics. Deploy defenses and skills to stop enemies. Through multi-tiered levels, learn from failures to adapt strategies and secure victory.
Why similar: Tower Defense 41.4%, Strategy 16.7%, Real Time Tactics 11.3%, Casual 10.6%, 3D Platformer 8.9%
Solder diodes, capacitors and other electronic components to defend your motherboard from waves of evil viruses!
Why similar: Tower Defense 47.3%, Strategy 19.8%, Real Time Tactics 12.2%, Casual 7.6%, 3D 6.9%
The Echoes of Mars is a voxel-style tower defence game. Defend your research base on Mars from ancient creatures by strategically placing towers and using advanced tech.
Why similar: Tower Defense 36.3%, Strategy 12.7%, Casual 9.7%, Arcade 8.4%, Space 7.1%
Demon Invasion: Endless is a tower defense game with endless challenges and tons of talent to explore. You will need to plan your tactics and build defensive towers to repel endless demons. Keep challenging and gaining resources to build your unique talent tree.
Why similar: Tower Defense 39.5%, Strategy 22.8%, Real Time Tactics 20.1%, Casual 15.1%, Singleplayer 2.5%
Build your towers according to the enmey you are facing in the wave. Upgrade your turrets to increase range, damage or rewards. Each enemy wave will be random and increases in speed and damage resistance. How far can you go!
Why similar: Tower Defense 41.3%, Real Time Tactics 16.3%, Strategy 10.9%, Casual 9.4%, Space 6.2%
A suuuper simple tower defense game with a suuuper simple perk tree.
Why similar: Tower Defense 29.3%, Strategy 25.9%, Casual 20.8%, Top-Down 9.8%, 3D 8.9%
Space Run Galaxy is the sequel to Space Run, the game from one-man studio Passtech, which seduced hundreds of thousands of players with its dynamic and original gameplay. By twisting the tower-defense game style, Space Run offered an addictive real-time spaceship construction strategy experience.
Why similar: Tower Defense 54.8%, Strategy 23.7%, Space 18.3%, Indie 3.1%
The planet of Fantasya is in crisis from Planet Eater. Let's save the planet Fantasya by dispatching a commando from the planet Ndev, a planetary protection agency. Character defense using cute SD characters, choose the skills the characters have to your liking and unfold various tactics.
Why similar: Tower Defense 39.6%, Real Time Tactics 20.2%, Strategy 20.2%, Casual 16.4%, Singleplayer 2.3%
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!
Why similar: Tower Defense 49.4%, Aliens 11.7%, Strategy 11.1%, Casual 7.2%, Arcade 6.6%
A strategy tower defense game, selected from the story of humans logging into an outer planet in the future to obtain resources and fight against the Zerg tribe. Set in a beautiful and dangerous outer planet, it is fun to resist Zerg attacks with different colored energy crystals.
Why similar: Tower Defense 26.3%, Real Time Tactics 14%, 3D Platformer 10.5%, Space 9.9%, Aliens 9.2%
Manage your units, give them formations and prepare for an assault of ever growing waves of enemies. Hold the line and keep your tower standing for as long as possible.
Why similar: Tower Defense 32.3%, Strategy 17%, Real Time Tactics 16.6%, Casual 13.5%, Arcade 13.4%
Get ready to defend from murderous robots. Use your cast of towers to defend from the robots in this 3D strategy game.
Why similar: Tower Defense 51.8%, Strategy 22.2%, Robots 13.5%, 3D 6.5%, Singleplayer 4.6%
Starfall Defenders is a classic tower defense game that features unique towers and enemies. It also has an in-game shop system that allows players to purchase better towers, upgrade existing ones, and buy special items like the Atom Bomb, Splash Bomb, and Air Supply.
Why similar: Tower Defense 35.2%, Strategy 16.1%, Arcade 14.1%, Space 14.1%, Aliens 7.2%
Tower defense adventure where you recruit heroes and use them to take down the corruption.
Why similar: Tower Defense 35.8%, Real Time Tactics 22.6%, Strategy 15.1%, Linear 7.8%, Top-Down 5.6%
Castle Life - A game about castle defense, in which the player accumulates money, buys archers and swordsmen for defense, improves his castle, collects gold, calls for rockfalls and fights off catapults.
Why similar: Tower Defense 38.2%, Real Time Tactics 15.9%, Arcade 15.5%, Strategy 13.2%, Casual 11.1%
By Placing the turrets, Save Humanity from AI!
Why similar: Tower Defense 39.1%, Robots 12.6%, Strategy 9.4%, Casual 8.3%, Top-Down 6.9%
Lord of Empires is a strategy game whose essence is to control the troops that you can send to capture the enemy.
Why similar: Tower Defense 41.5%, Real Time Tactics 20%, Strategy 17.8%, Linear 17.3%, Singleplayer 3.5%
Your Highness, our kingdom is at risk. We’re facing great danger! Not only villagers, but also maidens, warriors, mages, ravens, bats, eagles and dragons are trying to destroy our empire. Guard your throne and stop them now!
Why similar: Tower Defense 58.1%, Strategy 20.4%, Casual 17.5%, Indie 4.1%
Summon troops and use magic to defeat mage lords and other foes while surviving attacks from their followers. Learn new spells and recruit troops with unique powers. Venture across the land, battling ever stronger enemies until reaching the evil Mage King.
Why similar: Tower Defense 35.6%, Real Time Tactics 18.2%, Strategy 13.1%, Arcade 11.7%, Linear 9.8%
Are you ready to accept the challenge and stand up for the delicious cheese? In the Kittentegy game, you have to stop the mice from stealing the cheese from the houses. Your strategic skills and decisive actions will be the key to victory!
Why similar: Tower Defense 39.2%, Strategy 20.5%, Casual 16.6%, Arcade 15.9%, 3D 5.8%
Phantom Signal is a real-time sci-fi strategy game with unusual mechanics. Explore mysterious star systems and reveal the secret of the phantom signal.
Why similar: Tower Defense 38.6%, Strategy 22.4%, Space 19.5%, Casual 10.6%, Sci-fi 5%
The Brokens are invading and only you can save the planet, use your Tochos and defeat the evil forces in this strategic tower defense game.
Why similar: Tower Defense 51.2%, Casual 14%, Strategy 11.3%, Robots 9.2%, Top-Down 8.3%
”Sacular Defense" is a real-time tower defense game in which you intercept enemies by placing circles around them to prevent them from hitting the planet in the center of the screen. Strengthen your turrets and defend your planet from the endless enemies!
Why similar: Tower Defense 41.9%, Real Time Tactics 16.5%, Strategy 15.4%, Casual 11.8%, Space 8.8%
Your castle is under attack!!! Buy, merge and arrange your towers to defend against waves of bloodthirsty enemies. Give your towers super powers by adding ice, fire, lightning, poison runes and many more!
Why similar: Tower Defense 39.8%, Strategy 31.3%, Casual 22.8%, Singleplayer 4.2%, Indie 1.9%
WAIFU STAHP: Kekkon Kiken (結婚危険) is a non-violent tower defense game where you distract and dusgust waifus so they don't meet and inevitably marry your friend. Utilize over 100 defenses to distract & disgust waifus until they lose interest in marriage so you can keep hanging out with your best bud.
Why similar: Tower Defense 38.9%, Strategy 20.1%, Real Time Tactics 20%, Top-Down 7.4%, 3D 6.6%
The ultimate mash-up of Real-time Strategy and Tower Defense!
Why similar: Tower Defense 63.5%, Strategy 14.9%, Aliens 5.7%, Arcade 4.5%, Sci-fi 3.7%
Wrench Towers is a tower defense game inspired by the golden age of Flash games, with a modern take on gameplay and pixel art.
Why similar: Tower Defense 40.5%, Real Time Tactics 18.6%, Strategy 14.2%, Arcade 12%, Casual 8.2%
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.
Why similar: Tower Defense 40.1%, Aliens 14.4%, Strategy 12.2%, Robots 10.7%, Futuristic 8.7%
Where the player will have to defend the location by placing towers and withstand waves of attacking enemies. In this 3D game, you will find yourself facing the task of repelling hordes of skeletons and monsters.
Why similar: Tower Defense 41.6%, Real Time Tactics 26.6%, Strategy 12.3%, Top-Down 7.7%, 3D 7%
This is a tower defense game where you use four dice to build a turret. The rolls of the dice are the ability value of "number of shots", "time reload", "damage(& range)" and "magazine". Try your best to clear all 40 stages, which are getting more and more difficult!
Why similar: Tower Defense 50%, Strategy 20%, Real Time Tactics 20%, Casual 5.7%, Singleplayer 2.9%
Immerse in this cyberpunk fun strategic tower defence, with multitudes of strategic diversity, while encountering boss fight, and fighting for you glory to cubic perfection.
Why similar: Tower Defense 39.1%, Real Time Tactics 18.1%, Strategy 15.7%, Space 8.1%, Casual 5.6%
Evil Defenders is a fun, frenetic defense game: build and upgrade your towers, сast spells to repel enemy forces, use special landmarks and defend the Lands of Evil from invaders! Feel free to play the game in many different ways through unique tower upgrades, a deep skill tree and 100 in-game achievements.
Why similar: Tower Defense 69.4%, Strategy 17.5%, Casual 10.6%, Indie 2.5%
M.A.C.E. Tower Defense 2, a classic tower defense game with unique towers and enemies
Why similar: Tower Defense 39%, Strategy 20.3%, Real Time Tactics 20%, Futuristic 8.9%, 3D 6.6%
Tau Cubis is a mazing tower defense game set in colorful sci-fi landscapes. Use your strategic skills to overcome numerous challenges and advance through the leaderboards.
Why similar: Tower Defense 37.3%, Strategy 17.9%, Space 13.5%, Real Time Tactics 8.7%, Robots 6.9%
A light tower defense game with unique planet exploration. Defend against aliens, collect resources, and build a new home. Exquisite graphics and challenges await!
Why similar: Space 24.8%, Real Time Tactics 20.4%, Strategy 19.1%, Casual 14.4%, 3D 9.9%
Defend your village from waves of monsters in Defendópolis! A third-person tower defense game with cartoon-style graphics and plenty of action. Build defenses, take down enemies, and protect your home!
Why similar: Tower Defense 41.8%, Strategy 21.9%, Casual 17.6%, Turn-Based Tactics 7.9%, 3D 6.9%
An asynchronous multiplayer tower defense game were you either maze towers to defend against other players robots and/or assemble your robots and invade other players mazes.
Why similar: Tower Defense 39.9%, Strategy 21%, Robots 9.2%, Futuristic 9.1%, Top-Down 8.2%
Iron Line is a tower defense game where you are one of a few, train conductors capable of traversing on the Iron Line. Will you survive the onslaught, or get an express ticket to the afterlife?
Why similar: Tower Defense 48.3%, Strategy 18.9%, Aliens 9.5%, Top-Down 8.1%, 3D 7.2%
Defense Grid: The Awakening is a unique spin on tower defense gameplay that will appeal to players of all skill levels. A horde of enemies is invading, and it's up to the player to stop them by strategically building fortification towers around their base.
Why similar: Tower Defense 72.5%, Strategy 12.2%, Aliens 5.1%, Sci-fi 3.8%, Singleplayer 2.8%
SoulFeast(灵魂盛宴)是一款3D版类pvz的策略塔防游戏,玩家通过选取备战栏中的卡牌,召唤卡牌灵魂生物进行作战,抵御外来势力的攻势。游戏设计了100余种卡牌生物,包括但不限于资源生产型,近战型,远程型,辅助型,防御型,部分卡牌生物更拥有奇特技能。游戏设置了圣物增幅机制,共有数十种不同的圣物(非消耗品),玩家可自定义圣物搭配,合适的圣物搭配可以让战斗事半功倍。游戏还设置了元素反应机制,数十种不同的元素反应能带来意想不到的妙用,也让战斗更有趣味。游戏还内置了完整的背包库存系统和商店系统,帮助玩家攻略关卡,解锁更强力的卡牌和圣物,迎接更强大的敌人。我,一人成军!
Why similar: Tower Defense 36%, Strategy 17.9%, Casual 14.3%, 3D Platformer 13.5%, Real Time Tactics 11.2%