
Celestial Defense is a sci-fi space tower defense strategy game where tactical base building and resource management determine your survival. Build asteroid belts, evolve planets, and withstand relentless wave survival combat against the Void.
60+ similar titles based on shared tags and player behavior. Themes include Strategy, Tower Defense, Action RTS, Singleplayer.

Celestial Defense is a sci-fi space tower defense strategy game where tactical base building and resource management determine your survival. Build asteroid belts, evolve planets, and withstand relentless wave survival combat against the Void.

Starfall Defenders
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.

Necroflora
A new evil has taken root - you. Become the Necroflora, an ever-growing many-headed hydra, feed upon your enemies, acquire powerful mutations and defeat the 4 kings and their armies.
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: Action RTS 36.1% ★, Tower Defense 26%, Strategy 17.1%, Space 9.1%, 2D 3.9%
A new evil has taken root - you. Become the Necroflora, an ever-growing many-headed hydra, feed upon your enemies, acquire powerful mutations and defeat the 4 kings and their armies.
Why similar: Action RTS 40.1% ★, Tower Defense 24.5%, Strategy 14.6%, Base Building 7.5%, Grid-Based Movement 3.7%
The roads are under siege. Command a knight, wizard, and druid to stop waves of monsters in this fantasy strategy defense game. Save gold between missions, plan your defenses carefully, and survive 8 escalating levels where enemies grow stronger and attack from multiple paths.
Why similar: Action RTS 44.1% ★, Tower Defense 26.4%, Strategy 17.2%, Grid-Based Movement 11.1%, Singleplayer 1.2%
Kirkileons is a single player Tower Defence game. The game includes 2 planets containing 20 missions each(40 missions). The game relies on an original spawning method. The amount of foes depends on the percentage of magic energy VS anti-magic energy that your generators produce.
Why similar: Action RTS 32% ★, Tower Defense 30.2%, Strategy 21.9%, Grid-Based Movement 8%, Indie 4%
You play in a SciFi environment with LowPoly graphics, engaging in Tower Defense. Manage resources! Each round introduces more enemies that you must defeat. Build resource ships in the factory and simultaneously construct towers on the platforms to fend off the adversaries.
Why similar: Action RTS 39.3% ★, Tower Defense 29.4%, Strategy 22.7%, Base Building 7.4%, Singleplayer 1.1%
Lose yourself in an indie solo-dev. treasure that harkens back to arcade classics! All while thumping along to killer retro-inspired beats by Ovani sound. Embark on an epic tower defense adventure against awe-inspiring machine monstrosities, made by a devoted gamer for devoted gamers.
Why similar: Action RTS 35.9% ★, Tower Defense 24%, Strategy 11.6%, Base Building 9.9%, Resource Management 7.7%
A lighthearted tower defense game where everyday people fight back against hustle culture. Place and upgrade offbeat heroes like pillow-throwing grannies and wheelchair slingshot kids to stop workers zombified by an energy drink corp. Use philosophy and paint to remind humanity how to enjoy life.
Why similar: Action RTS 40.2% ★, Tower Defense 35.3%, Strategy 21.5%, Indie 1.7%, Singleplayer 1.3%
Assemble your army, build your village, manage your villagers, and survive the night's monster attacks until dawn.
Why similar: Action RTS 42.1% ★, Tower Defense 27.6%, Strategy 12.2%, Base Building 9.4%, Resource Management 5.6%
Atmospheric unique minimalist tower base defense game. Highly addictive.
Why similar: Action RTS 32.9% ★, Tower Defense 24.4%, Strategy 10.6%, Base Building 10.1%, Space 4.8%
Amidst the Wokou raids along the southeast coast of China during the Ming Dynasty (1552–1565), lead your troops, fortify your line, and repel the brutal invaders in this heroic tower defense game. Defend the common people and secure the shore!
Why similar: Action RTS 47.5% ★, Tower Defense 28.2%, Strategy 18.8%, Top-Down 2.7%, Indie 1.5%
A finger-blisteringly action-packed Tower Defence advanture!
Why similar: Action RTS 39.9% ★, Tower Defense 29.5%, Base Building 10.2%, Resource Management 9.1%, Strategy 7.7%
Jungle Resistance is an isometric Tower Defense game with Kingdom Rush Upgrade Style, with branching Tower Types. This will give a new Vibe and Mechanic to the Tower Defense game.
Why similar: Action RTS 40.8% ★, Tower Defense 30.4%, Strategy 22.9%, Top-Down 3%, Indie 1.7%
Sussy tower defense game with unlimited ways to play the game. Play with unique towers and upgrade them to create perfect defense. Master every map and become the greatest sussy commander.
Why similar: Action RTS 36.9% ★, Tower Defense 27.2%, Strategy 19.6%, Base Building 4.7%, 2D 3.6%
Pixel Defender is a 2D tower defense game with retro pixel aesthetics and direct character control.
Why similar: Action RTS 38.9% ★, Tower Defense 31.3%, Strategy 23.2%, 2D 4%, Indie 1.6%
A tower defense game filled with 12 varied levels across 7 biomes and 14 unique monsters with 3 increasingly harder difficulties to challenge even the most experienced of tower defense gamers lurking in their strongholds.
Why similar: Action RTS 40.6% ★, Tower Defense 29.1%, Strategy 14.3%, Base Building 5.1%, Resource Management 4.1%
A base-building survival game with terraforming and crafting. Earth lies poisoned and abandoned ten thousand years after invasion. Awaken from stasis, defend your fragile foothold, and restore a dead world so humanity can live here again.
Why similar: Tower Defense 30.6%, Action RTS 24.1% ★, Base Building 15.3%, Strategy 12.8%, Sci-fi 6.2%
Laser Defense Extreme is a Tower Defense Game, with a Killstreak System. Place your "Towers" strategically and eliminate the incoming enemies.
Why similar: Tower Defense 31.6%, Action RTS 24.1% ★, Strategy 13.1%, Resource Management 10%, Tactical 4.3%
Defend your base against increasingly dangerous enemy waves each night in this minimalist survival strategy. Mine resources, build and repair defenses, and upgrade your structures, tools, and abilities to survive in this harsh world.
Why similar: Tower Defense 28.5%, Action RTS 23.2% ★, Strategy 19.3%, Base Building 12.2%, Resource Management 10.3%
Negative Energy is a tower defense game with basic RTS mechanics, where your goal is to defend the construction of a Dyson sphere, while fighting against waves of hundreds of enemies ships.
Why similar: Tower Defense 28.9%, Action RTS 28.3% ★, Strategy 20.7%, Space 6.5%, Sci-fi 4.2%
Fight against huge hordes of geometric amalgamations with BOTH towers and allied defenders to stop them from breaking your CORE! Travel to barren deserts, hostile wastelands in this fast-paced tower-defence game.
Why similar: Action RTS 40.4% ★, Tower Defense 28.9%, Strategy 14.2%, Resource Management 7.6%, Sci-fi 3.7%
Prevent the invasion of the minions that stimulate the desire for challenge and prove that you are a slayer physically and mentally.
Why similar: Action RTS 38.5% ★, Tower Defense 33%, Strategy 17.2%, Base Building 6.2%, 2D 3.1%
Critter Chaos TD is a fast, frantic and chaotic Tower Defence game in which you must rid the world of the evil Critters. Build stations and guns to fortify your defences and prevent the various types of Critters from reaching your base.
Why similar: Action RTS 45% ★, Tower Defense 25.6%, Strategy 15.6%, Base Building 8.3%, Survival 2.7%
我们想打造一种很不一样的塔防游戏, 它应该很紧张,很刺激,除了策略, 还应该有英雄操控,玩起来更像我们过去玩的魔兽RPG, 潮水一样无数的怪,还能多人合作。 对了! 玩家之间还要能够公平竞技来一场PK, 这种PK要比MOBA游戏轻度一点, 可以1对1。于是有了现在的《策马守天关》!!!欢迎来体验!
Why similar: Action RTS 41.4% ★, Tower Defense 31.6%, Strategy 23.4%, Tactical 3.6%
Play against 3 different AI opponents across 12 different levels, and earn 12 amazing Gallery images!
Why similar: Action RTS 38.5% ★, Tower Defense 31.2%, Strategy 22.9%, 2D 4.4%, Indie 1.7%
An incredible asteroid assault is about to begin! Take command of the planet's defenses and prevent extinction in this planetary Tower Defense game.
Why similar: Strategy 40.2%, Tower Defense 34%, Space 15.2%, 2D 5.1%, Indie 3.1%
Controware is a game that will take you into the fascinating world of space warfare and allow you to become a real warlord.
Why similar: Action RTS 33.9% ★, Tower Defense 29.7%, Strategy 22.7%, Space 7.9%, Atmospheric 2.6%
Tempest Tower is an action packed tower defense platformer where you must brawl with incoming hordes of Creepers while herding the local critters to safety. Build, fight, upgrade, overcome.
Why similar: Action RTS 31.1% ★, Tower Defense 28%, Base Building 12.1%, Strategy 11.7%, Resource Management 11%
A minimalist game about fighting for freedom and independence in the United States of America!
Why similar: Action RTS 35.6% ★, Tower Defense 28.3%, Strategy 14.1%, Base Building 9.8%, Minimalist 5.9%
Sci-fi tower defense meets ARPG-like hero combat. Build towers then fight alongside them with your hero as you battle through a campaign to uncover the fate of a colonization effort on a distant planet.
Why similar: Tower Defense 34%, Action RTS 29.9% ★, Strategy 16.7%, Sci-fi 9.4%, Resource Management 3.6%
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 53.5%, Strategy 18.9%, Space 17.7%, Sci-fi 6.6%, Indie 2.7%
Use your towers to build a maze to kite the enemies to make more damage. But don’t block their way or they will go aggro on you! Use the checkpoints to have the enemies walk longer routes through your maze. Build your own maps in the map editor.
Why similar: Action RTS 40.8% ★, Tower Defense 30.1%, Strategy 21.6%, Survival 2.8%, Tactical 2.7%
Dig minerals, manufacture ammunition, and build defense towers to fend off swarms of insects. A tower defense game with light production line elements.
Why similar: Tower Defense 32.8%, Strategy 24.1%, Resource Management 11.9%, Base Building 9.7%, Sci-fi 9.6%
Can you craft the perfect mindscape defense and help your person reach the breakthrough that will powerup their future? Enter the minds of ordinary people and prepare for a fast paced strategic battle that could change their lives forever!
Why similar: Tower Defense 39.8%, Strategy 23.5%, Action RTS 21.2% ★, Base Building 5.9%, 2D 4.9%
Take on the role of commander and protect Earth from the relentless Drone invasion in this exciting tower defense game. Strategize and strengthen your defenses by utilizing a variety of towers, abilities, and elemental upgrades. It's up to you to lead the charge and save humanity from destruction.
Why similar: Action RTS 39.4% ★, Tower Defense 26%, Strategy 11.4%, Base Building 10.2%, Sci-fi 5.7%
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 49.7%, Strategy 30.9%, Space 14.4%, Indie 5%
Your castle is under attack! Defend your walls against enemies and epic bosses. Upgrade your defenses with unique weapons, strategic skills, and special upgrades! Become an unbeatable defender and master every battle.
Why similar: Tower Defense 40.8%, Action RTS 26.5% ★, Strategy 17.2%, Resource Management 7.2%, Indie 3.5%
Great strategy is timeless. Build, adapt, and defend across dynamic maps, solo or online - every session brings new strategies, new solutions, and new surprises. Now is the perfect time to enter the grid.
Why similar: Tower Defense 57.2%, Strategy 27.2%, Sci-fi 5.7%, Space 4.9%, Indie 4.5%
Battle For Cosmos is a fast-paced, action-packed RTS set in space. With a focus on the battle it is perfect for those who want a thrilling and engaging strategy game without the unnecessary filler. Take control of your empire, build your defenses, and conquer the cosmos!
Why similar: Action RTS 51.8% ★, Strategy 16%, Space 11.1%, Resource Management 6.8%, Sci-fi 6%
On planets occupied by robots, mine resources and escape while fending off their attacks! The Ark's survival is entirely in your hands. Many elite crews with abilities will assist you in your mission. The various turret modules are always doing their best to defend your base without your attention.
Why similar: Action RTS 30.8% ★, Tower Defense 22.5%, Strategy 10.8%, Space 8.9%, Resource Management 7.7%
Build your ultimate defense with a combination of powerful towers. Attack your opponent with strong Invaders. This game is sure to offer a unique and immersive experience for all tower defense enthusiasts!
Why similar: Action RTS 39.9% ★, Tower Defense 30.2%, Strategy 21.5%, Base Building 6.4%, Indie 2%
This game is a arcade block placing game mixed with action-packed Tower Defense gameplay mechanics. Build forts out of tetrominoes high up in the sky and defend it against the incoming waves of airships, by shooting at them with your minigun and building defenses!
Why similar: Action RTS 33.3% ★, Tower Defense 29.4%, Strategy 14.3%, Base Building 12.4%, 2D 3.6%
Conjure towers and cast spells to slay hordes of enemies attempting to destroy your lone bastion
Why similar: Tower Defense 38%, Action RTS 28.6% ★, Strategy 21.8%, Minimalist 3.9%, 2D 3.9%
Kingdom Rush 6: Genesis is a fantasy tower defense strategy game that takes you back in time to the early days of the Kingdom with bold new twists. Build towers, command heroes, and stop Vez’nan’s corruption before it tears the kingdom apart!
Why similar: Tower Defense 36.5%, Action RTS 27.2% ★, Strategy 19.6%, Base Building 9.6%, 2D 5.2%
Build your defense base to repel alien invaders. Atahion is a strategy and tactical defense game in which you have to extract resources, build defense towers and use bonuses to complete the mission.
Why similar: Tower Defense 36.7%, Action RTS 16.6% ★, Strategy 15.5%, Base Building 13.4%, Sci-fi 8.4%
In this sci-fi action/strategy game, you're the only trump card left to stop the Contingency in their destructive march. Man your ship, build your arsenal and blow away the waves sent to stop you in your tracks.
Why similar: Action RTS 36.7% ★, Tower Defense 29.9%, Strategy 21.8%, Sci-fi 5.6%, Space 5.2%
In a minimalist medieval world, every decision counts. Build, research, and fortify your kingdom as towering Giants and monstrous creatures lay siege to your land. Raise armies, manage your economy, and construct powerful defences to protect your people and hold the line against overwhelming odds.
Why similar: Action RTS 38.5% ★, Tower Defense 24.6%, Base Building 9.9%, Strategy 9.3%, Resource Management 7.9%
0 World TD is a 2d tower defence game with deep combat system, highly adjustable difficulty settings and many more features!
Why similar: Tower Defense 36.7%, Strategy 20.7%, Base Building 14.6%, Grid-Based Movement 13.5%, Sci-fi 5.4%
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.
Why similar: Action RTS 38.8% ★, Tower Defense 29.7%, Strategy 12.9%, Sci-fi 6.1%, Resource Management 5.7%
Craft an unstoppable defence using Dwarven Towers and a fearless squad, then take on waves of invading Hobgoblins in this thrilling real-time strategy tower defence game! Strategize, upgrade, and triumph in Hobgoblins Against Dwarfs!
Why similar: Tower Defense 35.3%, Action RTS 29.3% ★, Strategy 19.8%, Base Building 11.1%, Tactical 3.7%
This is a cooperative tower defense game for two players. Join forces with your friend, use limited resources to build defense towers and release Magic to fend off waves of oncoming monster hordes!
Why similar: Action RTS 41.1% ★, Tower Defense 30.3%, Strategy 21.9%, Base Building 4.3%, Top-Down 2.3%
The top of strategy battle game! Build villages and train units to defeat ghouls
Why similar: Action RTS 40.5% ★, Tower Defense 30.2%, Base Building 8.2%, Strategy 7.3%, Resource Management 7%
A survival RTS game where you defend your village against relentless waves of Norse mythological creatures. Build defenses, train warriors, and gather resources to survive as long as possible. If your Town Hall falls, it's game over. How long will you last?
Why similar: Action RTS 42.4% ★, Tower Defense 28.2%, Strategy 13.3%, Base Building 9.8%, Resource Management 2.9%
In Radical Tower Defense, harness shifting core chips to forge a unique steel defense. Each choice reshapes your combat style. Unlock architectures, explore chip synergies, ignite tactical reactions. Don’t just defend—become a blade to break formations, strike the heartland, crush the enemy lair!
Why similar: Tower Defense 40%, Strategy 24.2%, Base Building 13.2%, Resource Management 11.1%, Minimalist 4%
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.
Why similar: Tower Defense 34.6%, Strategy 30%, Space 12.1%, Minimalist 8.7%, Atmospheric 5.8%
Stellarcraft is a thrilling sci-fi tower defense game where you explore planets, gather resources, and fend off enemy threats—solo or in 4-player co-op. Play the free demo now! 🚀
Why similar: Action RTS 34% ★, Tower Defense 26.1%, Strategy 10.5%, Base Building 10.1%, Sci-fi 7.5%
Fable Forts! TD: defend your fairy kingdom from stupid human invaders!
Why similar: Tower Defense 32.6%, Action RTS 32.6% ★, Strategy 17.4%, Base Building 9.1%, 2D 4.5%
Command your own fortress in FTL-like real-time battles! Crush the enemy fortress with unrelenting bombardment or seize it with carefully executed invasion.
Why similar: Tower Defense 36.8%, Strategy 35.4%, Base Building 14.5%, Indie 5.7%, 2D 5.2%
Survivors Under Siege blends action RTS and tower defense into a minimalist tactical experience. Position your units wisely and strike at the perfect moment to stand against waves of zombies and mutants.
Why similar: Action RTS 41.7% ★, Tower Defense 26.2%, Strategy 11.6%, Minimalist 6.3%, Resource Management 6%
Harvest: Massive Encounter is an award-winning real-time strategy game with battles of epic proportions and a unique style of resource management and exploration. Build power plants, mineral harvesters and defense towers and make sure they have sufficient energy to fend off endless hordes of evil aliens.
Why similar: Tower Defense 56%, Strategy 29.5%, Sci-fi 7%, Indie 6%, Singleplayer 1.5%