60+ similar titles based on shared tags and player behavior. Themes include Singleplayer, Tower Defense, Space, Top-Down.
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?
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 across handcrafted and procedural maps.
Solar Defense
Solar Defense is a Military Sci-Fi inspired Tower Defense game focused heavily on strategy and decision making. Defend key locations and repel the Pilakarr forces back to their home world to end their attack and bring an end to this war.
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 30%, Space 11%, Arcade 11%, Aliens 8.9%, Linear 8.8%
Solar Defense is a Military Sci-Fi inspired Tower Defense game focused heavily on strategy and decision making. Defend key locations and repel the Pilakarr forces back to their home world to end their attack and bring an end to this war.
Why similar: Tower Defense 28.1%, Top-Down Shooter 16.8%, Aliens 11.8%, Strategy 11.5%, Top-Down 7.9%
4 turrets, a ship in peril, and waves of enemies. Hold the line and defend the ship, robot.
Why similar: Tower Defense 18.1%, Top-Down Shooter 17.7%, Strategy 13.7%, Arcade 13.1%, Space 10.6%
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 38.1%, Strategy 13%, Aliens 12.9%, Top-Down 11.7%, Space 9.2%
Neonis is a highly action packed top-down shooter in which you try to survive as long as possible. The game has a couple different gamemodes, such as: Classic, Chaos, Dodge and Flood. Pick up the buffs to have a higher chance of surviving for a longer period of time.
Why similar: Tower Defense 32.1%, Top-Down Shooter 22.9%, Space 14%, Arcade 9.6%, Top-Down 8.4%
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 38.9%, Aliens 17.1%, Space 15.5%, Top-Down 13.9%, Strategy 9.4%
Retro pixel-art top-down space shooter. Battle waves of alien invaders across world landmarks, upgrade your ship, collect power-ups, tackle events & missions, defeat epic bosses, and chase high scores.
Why similar: Top-Down Shooter 28.6%, Top-Down 14.6%, Space 12.1%, Aliens 9.2%, Sci-fi 9.1%
Active tower defense fused with a twin-stick shooter. Build your defense grid & become the death machine that exterminates the B.O.R.C infestation, one roguelike run at a time.
Why similar: Tower Defense 37.7%, Top-Down Shooter 15.2%, Arcade 14.1%, Top-Down 10.7%, Space 10.3%
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 40.4%, Space 17.7%, Strategy 12.5%, Aliens 12%, Arcade 10.7%
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 38.6%, Aliens 13.3%, Strategy 13.1%, Space 9.5%, Top-Down 9%
2D space shooter and turret defense come together to create the Planetary Defense System this world needs! Shoot down asteroids and aliens and survive the bosses in this arcade like game featuring customizable satellites, projectiles, and upgradable Cannon and Planet Shield systems.
Why similar: Tower Defense 26.5%, Top-Down Shooter 17.2%, Aliens 13.6%, Space 12.8%, Top-Down 8.9%
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 41.6%, Aliens 15.8%, Space 11.1%, Top-Down 10.4%, Strategy 9.9%
Crossroads of life - a game in which you have to fight off waves of enemies while protecting your life.
Why similar: Tower Defense 37.8%, Top-Down Shooter 21.9%, Aliens 14.5%, Top-Down 12.3%, Action 8.2%
Outpost Ginga follows the events of a research and production space station that was attacked at the beginning of the Automaton War. While that station was captured by the abhorrent Automatons the control center managed to make an emergency FTL jump, becoming lost in the vastness of space.
Why similar: Tower Defense 31.1%, Aliens 15.6%, Arcade 13.3%, Space 9.4%, Action 7.9%
Defend the solar system from fearsome aliens by sending satellites into orbit in revolutionary tower defense action!
Why similar: Tower Defense 62.9%, Strategy 10.4%, Aliens 8.2%, Sci-fi 7.1%, Space 5.1%
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 38.9%, Top-Down Shooter 14.4%, Sci-fi 12.2%, Strategy 8.5%, Top-Down 7%
Customize your Gun Bots to fight through 7 unique worlds with different weather conditions that become more challenging as you progress.
Why similar: Tower Defense 28.2%, Top-Down Shooter 17.8%, Aliens 12.4%, Arcade 9.6%, Top-Down 8.3%
Dracula Defense is a top down 2D tower defense game where the player will need to act strategically to survive an onslaught of enemies trying to attack a base. Only you can Defend Dracula!
Why similar: Tower Defense 30.7%, Top-Down Shooter 15.9%, Strategy 13.8%, Arcade 12.7%, Top-Down 9.1%
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 34.7%, Sci-fi 10.9%, Strategy 10%, Aliens 9.4%, Arcade 8.2%
The ultimate mash-up of Real-time Strategy and Tower Defense!
Why similar: Tower Defense 59.4%, Strategy 11.5%, Sci-fi 8.3%, Aliens 7.5%, Top-Down 5%
Wave defense with an RTS command layer. Your drones fight on their own until you take the controls. Mine the wreckage, draft upgrades between waves, and hold the line against an onslaught of asteroids.
Why similar: Tower Defense 41%, Top-Down 14.3%, Space 13.1%, Sci-fi 11.4%, Strategy 10.6%
Get Off My Space! is a tower defense game where you rely on skillful tower placement and resource management to beat upcoming dangers of the galaxy. Combining strategy and micro-managing fire groups, you will overcome the hardest level objectives.
Why similar: Tower Defense 25.6%, Top-Down Shooter 15.1%, Aliens 12.5%, Arcade 10.8%, Top-Down 8.4%
Aliens are invading! Load up your guns and eliminate them with the help of ancient indigenous equipment in your backpack!
Why similar: Tower Defense 40.3%, Top-Down Shooter 24%, Strategy 17.2%, 3D 6.9%, Combat 5.2%
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 57.4%, Space 21.4%, Strategy 11.7%, Sci-fi 7.9%, Action 1%
A wave-based action game, where you fight to survive for as long as you can.
Why similar: Tower Defense 35.9%, Top-Down Shooter 19.1%, Top-Down 15.2%, Arcade 9.1%, Strategy 5.9%
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 33.8%, Arcade 13.9%, Space 13.2%, Strategy 12.8%, Aliens 9.9%
A new charm of traditional tower defense.Hordes of unknown aliens have descended upon Earth. On dynamic scene maps, you need cleverly build defense towers to construct their path of advance, combine with controllable targeting strategies, and stop the aliens' assault.
Why similar: Tower Defense 47.7%, Sci-fi 14.7%, Aliens 12.3%, Strategy 11.5%, Top-Down 8.3%
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 31.1%, Aliens 18.7%, Arcade 11.6%, Sci-fi 9.4%, Space 9.1%
Man the guns and hold the barricade in this low-poly zombie defense game.
Why similar: Tower Defense 34.3%, Top-Down Shooter 25.6%, Arcade 10.9%, Strategy 10%, Top-Down 8.3%
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 48.1%, Aliens 16.2%, Strategy 9%, Sci-fi 6.8%, Arcade 6.5%
- Objective defended the Core from endless waves of enemy's, level-up, collect resources and data, to research and upgrade your chance of survivability...
Why similar: Tower Defense 48.1%, Strategy 12.1%, Space 11%, Aliens 10.1%, Sci-fi 7.2%
Tower defense where the maze is yours to build and the ammunition is yours to manufacture. 16 towers, a factory of belts and assemblers fed by enemy debris, and a card every wave. Reach wave 50 — then find out that Hard was the easy one.
Why similar: Tower Defense 41.2%, Top-Down 14.9%, Top-Down Shooter 13.6%, Aliens 12.4%, Strategy 10.7%
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 39.8%, Strategy 16.8%, Arcade 15.6%, Linear 8.5%, Casual 8%
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 34.7%, Aliens 15.8%, Strategy 14.4%, Space 9.6%, Action 7.6%
Blue Jay Joyride is a fast-paced 2D space shooter. Go through waves of enemies and fight progressively harder bosses. Collect one of the many unique powerups to give your ship a fighting chance in this intense game.
Why similar: Top-Down Shooter 25.9%, Aliens 17%, Arcade 16.4%, Top-Down 11.4%, Space 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 36.7%, Aliens 15.2%, Strategy 14.4%, Top-Down Shooter 12.6%, Sci-fi 11.5%
Lead an armored squad through the perils of this reversed tower defense action-strategy game!
Why similar: Tower Defense 45.2%, Strategy 23.2%, Sci-fi 11.7%, Aliens 8%, Action 5.5%
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 43.5%, Arcade 14.8%, Strategy 13.7%, Top-Down 10.4%, Space 7%
Terra Forma is a pixelated 2D tower defense, inspired by Flash-age classics. Build a dozen unique towers and create even more fusions by combining shock, ice, fire, and iron. Prove your command prowess one final time, and defend mankind's final hope.
Why similar: Tower Defense 46.9%, Strategy 15%, Top-Down 13.5%, Sci-fi 8.5%, Aliens 8.4%
Machines vs. Monsters is a roguelite tower defense. Land on a hostile planet, build mazes of industrial firepower, and hold your Command Center against escalating native waves. Lose, learn, upgrade the fleet, redeploy. Batavia's survey says the site is viable. The site disagrees.
Why similar: Tower Defense 43.4%, Strategy 14%, Sci-fi 11.6%, Aliens 11.5%, Space 10.7%
A quick arcade-style shooter where you constantly have to weigh choices between improving your stats, expanding your mines, building your defenses or going on the attack, before the enemies either take your resources or overrun you
Why similar: Top-Down Shooter 17.9%, Strategy 15.7%, Arcade 15%, Aliens 14%, Top-Down 9.5%
This is a top-down survival shooter game where players must fight for survival on a battlefield filled with skeleton soldiers.
Why similar: Tower Defense 37.3%, Top-Down Shooter 23%, Top-Down 10.9%, Strategy 10.5%, Casual 7.4%
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 47.5%, Strategy 15.3%, Top-Down 13.5%, Aliens 13.3%, 3D 7.3%
Sci-fi tower defense where you create your own maze, manage drones and power levels, and harvest for resources. Upgrade your turrets, buildings and ground units. Upgrade and buy new vehicles and motherships.
Why similar: Tower Defense 54.1%, Sci-fi 18.3%, Strategy 15.6%, 3D 9.9%, Singleplayer 2.1%
Year 2425, humanity colonized the exoplanet named SACH-041840. But then, in the 55th year "they" came; No one knows who or what controls them, but what is known is that if they reach the colony proper, it will be annihilated. It is up to you to bring the WRECKONING upon them!
Why similar: Tower Defense 32.1%, Arcade 12%, Aliens 12%, Space 9.9%, Strategy 8.6%
Fly a spaceship made of scrap through obstacles in outer space - using only one button!
Why similar: Arcade 22.6%, Space 21.5%, Top-Down 18.8%, Linear 16.8%, Aliens 15%
Craft Your Ultimate Circular Fortress! Dive into SHOOPER NOVA, where you choose props and components to build a unique fortress. Unlock combos to shape your strategy and battle style. Become an unstoppable barrage machine and obliterate waves of enemies from all directions!
Why similar: Tower Defense 35.9%, Strategy 11.7%, Arcade 9.9%, Top-Down Shooter 9.7%, Top-Down 8.8%
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 72.6%, Strategy 10%, Sci-fi 9%, Aliens 7.2%, Singleplayer 1.1%
Command a team of 5 elite soldiers against an alien horde of 100,000. Surrounded on all sides, you must outmaneuver and outsmart the enemy.
Why similar: Tower Defense 41.6%, Strategy 16.7%, Top-Down 14.3%, Aliens 11.7%, Sci-fi 9.1%
A fast paced garden defense game. Collect what you can before the pests take over!
Why similar: Tower Defense 32.5%, Aliens 18.3%, Arcade 13.2%, Space 12.6%, Sci-fi 8.3%
Click Bangbang is an incremental tower defense game with clicker mechanics. Equip two click-activated powers, counter alien species with the right abilities, unlock devastating upgrades, and uncover the mystery behind the invasion as you battle through deep space.
Why similar: Tower Defense 40.7%, Strategy 17%, Space 16.4%, Arcade 8.5%, Combat 5.9%
Defend your Starbase in a vibrant roguelite shooter. Upgrade your weapons mid-run, unlock permanent rewards, and survive the endless onslaught.
Why similar: Tower Defense 33.6%, Top-Down Shooter 23%, Arcade 11.5%, Top-Down 9.5%, Strategy 6.9%
A single-tower defense game. Engine failure has made our ship stationary. Shoot down the bugger fleet and collect their fragments to upgrade your weapons, then use rare drops for permanent upgrades between runs. Unlock special weapons and deploy defenders to face down endless waves of alien ships.
Why similar: Tower Defense 44%, Top-Down 15.2%, Linear 13.4%, Aliens 9.1%, Space 8.1%
Defend your main hub against the waves of incoming enemies which wanna see you DEAD. Mine resources, smelt them and then build your defenses and survive until the end.
Why similar: Tower Defense 35.8%, Aliens 16.2%, Strategy 16%, Top-Down 11%, Sci-fi 8.1%
You control a magic tower floating in the sky, falling from the sky against enemies coming from all sides, choosing the right weapon mix for different enemies, using health and mana in a planned way, reducing their wear and gain more rewards.
Why similar: Tower Defense 38.1%, Top-Down Shooter 21.4%, Strategy 17.5%, Top-Down 10%, Casual 7.1%
Pulse Citadel is a compact sci-fi defense game where automated combat powers a hand-built research grid. Route Charge into weapons, abilities, speed, and prestige upgrades until the dormant Citadel comes fully online.
Why similar: Tower Defense 39.1%, Strategy 13%, Top-Down 11.5%, Linear 11.5%, Space 9.8%
Autothysis is a first-person tower defense game where strategy meets precision. Deploy turrets, manage resources, and fight swarms of insectoid enemies. Target weak points to shatter foes while upgrading defenses to survive escalating waves. Can you withstand the oncoming horde?
Why similar: Tower Defense 35.7%, Aliens 15.2%, Space 12.5%, Sci-fi 11.1%, Strategy 9%
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 37.7%, Space 16.2%, Strategy 12.3%, Arcade 11.1%, Top-Down 9.5%
