
The day has come… Humanity has been attacked by an alien race.You have space bases at your disposal. Use them to launch battleships and take over the alien mothership.
60+ similar titles based on shared tags and player behavior. Themes include Strategy, Tower Defense, Singleplayer, Tactical.

The day has come… Humanity has been attacked by an alien race.You have space bases at your disposal. Use them to launch battleships and take over the alien mothership.

Motherboard Under Attack
Solder diodes, capacitors and other electronic components to defend your motherboard from waves of evil viruses!

Swarming Planet
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.
Solder diodes, capacitors and other electronic components to defend your motherboard from waves of evil viruses!
Why similar: Tower Defense 35.8%, Tactical 15.8%, Real Time Tactics 13.1%, Base Building 12.8%, Strategy 12.4%
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 23.7%, Real Time Tactics 14.5%, Base Building 13.6%, Aliens 13.3%, Tactical 10.5%
A planetary tower defense where enemies attack across land, air, and space. Build layered defenses, manage resources, and survive an escalating alien invasion.
Why similar: Tower Defense 32.2%, Real Time Tactics 17%, Base Building 14.2%, Tactical 10.7%, Space 8.5%
Classic Tower Defense meets space exploration. Build turrets on mining platforms, harvest enemies to build more defenses, and mine Dark Energy to travel the stars. As a sentient AI, you must upgrade your tech, scan planets, and find a new home for humanity before Earth fades away.
Why similar: Tower Defense 26.9%, Real Time Tactics 23.9%, Base Building 11.9%, Space 10.4%, Strategy 9.3%
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 36.6%, Space 13.1%, Real Time Tactics 12.6%, Strategy 12.5%, Aliens 11.6%
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 32.4%, Base Building 19.8%, Real Time Tactics 19%, Tactical 12.3%, Strategy 10.6%
The gate is open, but it doesn't go across — it goes below. And something is coming up. As the ruler of a pixel realm, you will command the clash of strategies, dive deep into attack and defense, and experience the purest form of the tower defense world.
Why similar: Tower Defense 25%, Base Building 20%, Turn-Based Strategy 18.7%, Strategy 13.1%, Tactical 9.8%
Build a space station. Command the tiny crew. Explore the galaxy. A meditative space strategy game.
Why similar: Tower Defense 25%, Real Time Tactics 21%, Base Building 15.2%, Space 14.1%, Strategy 6.4%
A unique tower-defence puzzler! One day, the neighboring "Mofu" nation unexpectedly launched an assault on our land! Their aim is to destroy our castle! As a young witch of the kingdom, defend the walls and defeat the coming "Mofu" horde!
Why similar: Tower Defense 30.7%, Real Time Tactics 21.6%, Tactical 15.6%, Puzzle Platformer 11.5%, Turn-Based Tactics 6.7%
Tower defense without combat. Circuit Maze is a puzzle game where you need to build the longest possible maze with the resources you are given.
Why similar: Tower Defense 32.3%, Logic 15.4%, Base Building 12.5%, Puzzle 8%, Strategy 7.9%
A Tower Defense game mashed with Idle Clicker mechanics set inside a wonderful world of crayons. Build out your defenses, go grab a snack and watch your forces take on enemy units.
Why similar: Tower Defense 28.4%, Base Building 16.3%, Space 15.4%, Clicker 12.8%, Tactical 12.7%
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 20.7%, Real Time Tactics 14.6%, Tactical 13.4%, Base Building 13.4%, Space 12.8%
A game based on the classic Tower Defense style, assemble your best combination to overcome obstacles, can you do it?
Why similar: Tower Defense 29.9%, Real Time Tactics 21.6%, Turn-Based Tactics 11.3%, Logic 8.4%, Tactical 8.1%
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.
Why similar: Tower Defense 31.5%, Space 17.1%, Real Time Tactics 13.5%, Strategy 9.1%, Aliens 8.7%
Build and command a fleet of starships and travel between planets as you explore, build, negotiate, and fight to preserve your vision for humanity.
Why similar: Space 34%, Turn-Based Strategy 24.9%, Strategy 13.6%, Tactical 13.6%, Sci-fi 11.3%
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 30.3%, Space 19.2%, Real Time Tactics 19.1%, Base Building 10.2%, Strategy 9.9%
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 29.8%, Real Time Tactics 21.7%, Aliens 12.6%, Strategy 12.4%, Space 12.2%
Build your towers, plan your efforts, watch out for changing paths and strike back against the alien invaders in this challenging tower defense game!
Why similar: Tower Defense 27%, Real Time Tactics 19%, Tactical 13.8%, Base Building 11.4%, Aliens 10.7%
Taur is an action-strategy sci-fi game. Control the Prime Cannon and unlock all of its powerful weapons and abilities. Build turrets, droids, aircraft and more as you fight to protect the homeworld of the Tauron droids against a relentless invasion. Will your Taur stand against the Imperion warmachine?
Why similar: Tower Defense 38.8%, Base Building 16.8%, Real Time Tactics 10.4%, Strategy 9.5%, Tactical 8.4%
Space Base is an action-packed tower defence game, where you aim to protect your planets from the incoming forces of enemy ships and aliens by any means necessary. Build up your defences as stronger and stronger waves of enemies arrive to reach the highest score possible.
Why similar: Tower Defense 33.2%, Base Building 18.1%, Tactical 12.1%, Space 12.1%, Strategy 9.8%
A strategic tower-defense where you control powerfull drones. Unlock new tower and use specific technologies to defend your base on Thukothea!
Why similar: Tower Defense 42.3%, Real Time Tactics 19%, Base Building 11.2%, Strategy 10.2%, Tactical 9.4%
Rise of Mutant Swarms is a strategy survival tower-defense game where you defend the base against waves of evolving mutant enemies. Place and upgrade turrets, adapt to enemy abilities, and make critical decisions as the pressure rises with every wave.
Why similar: Tower Defense 35.1%, Real Time Tactics 12.1%, Strategy 11.7%, Aliens 11.6%, Sci-fi 9.5%
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 51.6%, Space 28.4%, Strategy 10.6%, Sci-fi 6.9%, Indie 2%
Sphere Invasion is Sci-Fi Tower Defence. Build your own road and defend it with 7 unique towers.
Why similar: Tower Defense 28.9%, Real Time Tactics 22%, Space 16.3%, Tactical 13.5%, Strategy 8.1%
East DefenseYour duty is to protect the castle by strategically building & upgrading towers to stop monsters from coming their way!
Why similar: Tower Defense 34.2%, Tactical 18%, Base Building 17%, Strategy 11.5%, Real Time Tactics 10.9%
Adventure TD brings you back the good old classic kind of tower defense, with a bunch of different upgradable towers, game modes, maps and difficulties. All needed hotkeys are configurable, so there are no excuses for failures. Prove that you can master the game and try to improve your high score.
Why similar: Tower Defense 36.3%, Real Time Tactics 21.2%, Tactical 20.1%, Strategy 12.5%, Logic 6.9%
Match colors to build your own spaceship! Explore space and fight alien spacecrafts while acquiring weapons and upgrading your red ship. Become the space pilot you’ve always wanted to be.
Why similar: Real Time Tactics 20.8%, Clicker 15.2%, Aliens 13.2%, Puzzle Platformer 13.1%, Logic 8%
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 37.4%, Space 13.7%, Strategy 12.8%, Aliens 12%, Base Building 8.5%
Project Astra Dominium is a Tower Defense game with Basebuilding and Automation elements. Build up your base to become a supply hub for Earth's desperately needed materials, gather resources while defending against an unknown alien threat and improve your tower's and AI capabilities.
Why similar: Tower Defense 21.3%, Gun Customization 16.8% ★, Space 14.5%, Base Building 14.1%, Aliens 11.2%
A strategic and action-packed base survival game where you mine crystals, build units, and defend your base against waves of UFOs. Defeat enemies, gather resources, and unlock new planets to expand your defenses. Are you ready to conquer the galaxy?
Why similar: Tower Defense 24.2%, Real Time Tactics 18.3%, Space 13.8%, Base Building 11.8%, Aliens 10.9%
Defentrix is an intense single-player tower defense strategy game where every decision matters. Plan your towers, react under real-time pressure, and hold the line with smart tactics instead of luck.
Why similar: Tower Defense 45.2%, Tactical 26.5%, Gun Customization 15.3% ★, Strategy 9.7%, 3D 2.2%
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 35.1%, Real Time Tactics 22.9%, Gun Customization 17.8% ★, Strategy 10.2%, Tactical 9.7%
Build and upgrade towers, defend your fortress from the growing onslaught. With each wave, the challenges become more difficult, but a smart strategy and the right decisions will help you endure and prevail!
Why similar: Tower Defense 35.1%, Tactical 17.2%, Real Time Tactics 16.2%, Base Building 12.1%, Strategy 11.4%
Engineered to Purpose is a new tower defence game where you custom-design towers to defend your base, with millions of builds to explore and refine. Set in the far future, E2P's story of posthumanism, family, and change will open new worlds to explore and survive.
Why similar: Tower Defense 24.7%, Gun Customization 22.7% ★, Real Time Tactics 16%, Space 9.6%, Tactical 7.8%
Bad coffee. Boredom. And now—war. Southern forces have invaded the North in a dangerously curious conflict. Use your wits in Lore of Terra, a handcrafted tower defense game with charm, chaos, quirky characters, 9 continents, and 80+ unique allies and foes.
Why similar: Tower Defense 34.9%, Real Time Tactics 25.3%, Tactical 18.4%, Strategy 15.4%, 3D 3.8%
A simple and colorful Tower Defense and Roguelite
Why similar: Tower Defense 29.4%, Tactical 14.2%, Turn-Based Strategy 14%, Turn-Based Tactics 13%, Strategy 10.2%
Galaxy squad is a hardcore turn-based tactical roguelike, inspired by FTL and XCOM.
Why similar: Space 20.5%, Turn-Based Strategy 17.8%, Tactical 16.4%, Turn-Based Tactics 15.1%, Strategy 12.4%
The XCOM: Enemy Unknown - Slingshot Pack is Now Available!
Why similar: Turn-Based Strategy 28.5%, Tactical 23.4%, Aliens 14.7%, Sci-fi 10.9%, Strategy 8.8%
Assume control of an evil intergalactic megacorporation in this sci-fi tower defense. Build a mining infrastructure on alien moons and exoplanets, exploit their precious resources, and defend your operation against defiant natives.
Why similar: Tower Defense 24.1%, Base Building 13.5%, Gun Customization 13% ★, Tactical 12.7%, Aliens 10.7%
Defend your planet from relentless stream of incoming asteroids in this fast-paced 2D tower defence game. Strategically place defensive buildings and upgrade your arsenal to protect your world from destruction!
Why similar: Tower Defense 38.8%, Space 16.1%, Strategy 13.1%, Tactical 11.8%, Sci-fi 8%
Project Eternal is a deck-building tower defense game. Use the cards you receive as rewards to keep creating unique combinations of turrets and defeat the oncoming enemies.
Why similar: Tower Defense 24.6%, Real Time Tactics 20.4%, Turn-Based Strategy 14.9%, Turn-Based Tactics 11%, Space 9.8%
A mash-up of the common idle clicker genre and a city builder, Capitals is a fast-paced and competitive strategy game. Each match is set on a resizable game board made up of hexagonal tiles, randomly generated each time you play.
Why similar: Tower Defense 26.3%, Base Building 17.6%, Tactical 15.2%, Clicker 13.6%, Real Time Tactics 11.7%
Galactic Garrison is a sci-fi, turn-based tower defense game where you defend your base from relentless alien waves on Mars. Deploy soldiers, build barricades, and upgrade defenses to withstand attacks. Earn powerful reward cards to gain strategic advantages and outmaneuver your enemies.
Why similar: Tower Defense 31.9%, Real Time Tactics 20.8%, Base Building 12.6%, Tactical 9.9%, Strategy 9.7%
Defensive Loop is a tower defense game where you protect a small character that moves across the map. As they collect points, you can spend them to build your defenses. The game features incremental elements, allowing you to upgrade several different attributes for every type of defense.
Why similar: Tower Defense 33.7%, Real Time Tactics 23.5%, Clicker 14.7%, Strategy 9.8%, Tactical 7.5%
It's a tower defense game that uses blocks to build fortresses against monsters. Gathering resources, building defenses, and keeping an eye out for the abilities of a variety of monsters.All of these will challenge the player's strategic choices, resource management, and immediate reactions.
Why similar: Tower Defense 36.2%, Base Building 22.1%, Real Time Tactics 18.5%, Strategy 9.1%, Tactical 8.7%
1.It is The Strategy Chess Game. 2.All operations are performed using the left mouse button. 3.In the world map, left-click to move the character. If the character is not visible, click the second and third buttons below to locate them.
Why similar: Turn-Based Strategy 33.2%, Tactical 22.9%, Turn-Based Tactics 18.7%, Strategy 15.6%, 3D 3.8%
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 41.1%, Space 26.6%, Strategy 12.8%, Aliens 11.4%, Sci-fi 5.8%
A Roguelike Tower Defense in space with missions to conquer. Can you hold against the spreading alien bosses? Build and upgrade towers against the corruption. Choose your technologies and warpspeed your way to victory.
Why similar: Tower Defense 29.3%, Real Time Tactics 22.5%, Space 13.6%, Aliens 9.7%, Tactical 9.4%
Star Vikings Forever is a humorous Puzzle/RPG developed by the award-winning creators of Chroma Squad, Dungeonland, and Relic Hunters Zero.
Why similar: Tower Defense 28.7%, Turn-Based Strategy 17.9%, Tactical 14.2%, Space 13.9%, Strategy 7.8%
M.A.C.E. Tower Defense 2, a classic tower defense game with unique towers and enemies
Why similar: Tower Defense 34.9%, Real Time Tactics 25.5%, Strategy 15.1%, Tactical 12.8%, Sci-fi 7%
This is a tower defense building game. The game controls the movement of the protagonist through the arrow keys on the keyboard or the left mouse button, and interacts with characters and objects in the scene through the space bar.
Why similar: Tower Defense 39.8%, Real Time Tactics 27.5%, Base Building 19.9%, Strategy 7.3%, Casual 4.6%
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 39.7%, Real Time Tactics 24.8%, Base Building 20.2%, Strategy 13.9%, Indie 1.4%
Welcome to Monster Hunter, where you can customize multiple characters and experience controlling your economy in battle. Experience mini games and obtain useful props in your free time!
Why similar: Tower Defense 32.3%, Turn-Based Strategy 25%, Strategy 15.3%, Turn-Based Tactics 13.7%, Casual 8%
Defend the solar system from fearsome aliens by sending satellites into orbit in revolutionary tower defense action!
Why similar: Tower Defense 62.3%, Strategy 10.4%, Aliens 7.6%, Space 7.4%, Sci-fi 6.9%
HERO YOUSEIJYO is a old style raising mini game. Train up a Hero to defeat the Demon King.
Why similar: Turn-Based Strategy 25.6%, Clicker 17.8%, Tactical 15.7%, Turn-Based Tactics 11.5%, Strategy 10%
Elemental Rush is a strategic action game where you build defensive towers, protect your base, and face waves of enemies in stunning 3D graphics. Adapt your tactics, upgrade your towers, and survive the relentless onslaught!
Why similar: Tower Defense 36.2%, Real Time Tactics 25.1%, Strategy 10.5%, Tactical 8.8%, Puzzle 6.9%
Build various towers to resist the large number of monsters coming from the wormhole, by extending their walking routes.
Why similar: Tower Defense 34.5%, Real Time Tactics 25.8%, Base Building 19%, Strategy 9.4%, Casual 4.8%
Artisan TD is a puzzle-oriented Tower Defense game where you must survive by building mazes.
Why similar: Tower Defense 36.2%, Real Time Tactics 19.4%, Tactical 18.7%, Strategy 9.4%, Puzzle 7.1%
Try to survive in infinite asteroid cloud as long as possible in reworked tower defence style. FInd your own playstyle and beat your own records or chillout with original ambient soundtracks. Build, explore, think - everything to create your own colony in this cold space.
Why similar: Tower Defense 28.4%, Space 20.7%, Tactical 18%, Real Time Tactics 18%, Strategy 8.5%
Build towers anywhere in this tower defense game to damage and block incoming waves of evil enemies. Surprisingly, those enemies look like yourself. Discover why, and the source of the Shaman power.
Why similar: Tower Defense 38.1%, Real Time Tactics 27.6%, Strategy 17%, Base Building 16.1%, Singleplayer 1.2%