60+ similar titles based on shared tags and player behavior. Themes include Tower Defense, Strategy, Singleplayer, Indie.
Escape From The Red Planet simplifies resource management, tower defence, and first-person mechanics into a singular arcade experience. On the latest mission to Mars, the Orion III crash-landed. With Martian attacks looming, Houston most definitely has a problem!
Autothysis
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?
Zerion 12
A sci-fi tower defense game. Build an army of towers to stop waves of a lured alien species called Zektid's.
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 23.3%, Aliens 12.9%, Survival 11%, FPS 10.5%, Space 9.7%
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 26.3%, Real Time Tactics 17.2%, Aliens 15.6%, Strategy 12.5%, Space 8.7%
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 21%, Real Time Tactics 14.3%, Aliens 13.3%, Space 9.8%, Resource Management 8.4%
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 34.6%, Aliens 15.3%, Strategy 13.5%, Real Time Tactics 10.7%, Space 10%
SENTRY is an action-defense first person shooter where you defend your spaceship against invading aliens. Plot an escape route through hostile space and battle the enemy across your vessel with the support of traps, turrets and environmental destruction.
Why similar: Tower Defense 26.2%, Aliens 13.6%, FPS 12.1%, Survival 11.9%, Space 10.6%
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 29%, Space 12.7%, Aliens 11.2%, Real Time Tactics 11.2%, Strategy 9.5%
On an alien world, you must defend yourself in this unique base-building tower-defense game. Build a base by placing blocks, turrets and traps in order to survive the hoards of aliens.
Why similar: Tower Defense 28.1%, Aliens 13.7%, Real Time Tactics 12.3%, Resource Management 12.3%, Strategy 9.8%
BTR Ringfall is a tactical lane-based tower defense game. Deploy 7 unique elemental operatives across 5 battle lanes, manage Ring Energy, unleash powerful abilities, and combine your operatives to create devastating elemental reactions and defend the Ring.
Why similar: Tower Defense 35.7%, Real Time Tactics 20.9%, Strategy 13.3%, Resource Management 12.2%, Sci-fi 10.7%
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 40%, Sci-fi 14.4%, Aliens 13.5%, Real Time Tactics 12.9%, Strategy 11%
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 36.6%, Space 19.2%, Aliens 14.2%, Strategy 12.9%, Arcade 7.6%
Defend your base across four unique worlds in this 3D tower defense game. Battle waves of monsters, conquer 20 campaign levels, and climb the global leaderboard in the endless mode.
Why similar: Tower Defense 35.2%, Strategy 12.9%, Space 10.6%, Management 9.8%, Survival 8.6%
Defense Task Force Featuring Large Scale Procedurally Generated Tower Defense Battles with FPS Quality Visuals and Infinite Waves. 10 tower types, with different attacks , 3 levels plus boosts. 25 Enemy alien species: Regulars, Swarmers, Racers, Cloakers, Healers, Boss Units and Spawners.
Why similar: Tower Defense 57.7%, Strategy 19.2%, Sci-fi 15.1%, Indie 8%
Use your special ops units to construct base facilities and towers to protect them from the ever-increasing threat of alien invaders in this Tower Defense game with a city-building element! Research their weaknesses and develop defenses before mankind runs out of time.
Why similar: Tower Defense 24.9%, Real Time Tactics 16.3%, Resource Management 13.1%, Time Management 12.4%, Aliens 10.9%
Crystal Guardian is a tower defense game featuring survival and time control elements. Defend the crystal against enemies from different biomes every night, and during the days, gather resources from various biomes to alleviate hunger and thirst, aiming to survive until the 100th day.
Why similar: Tower Defense 33.1%, Time Management 18.6%, Strategy 16.4%, Survival 13.6%, Resource Management 10.8%
You have 9 days to find a safe place on the planet. Your ship is low on fuel and you have to land. Setup sentry guns around you to defend yourself while you collect more fuel for the ship. AI controlled Drones and Tanks attack you trying to find weaknesses in your defenses.
Why similar: Tower Defense 36.4%, Strategy 12%, Resource Management 10.2%, Survival 9.9%, FPS 9.7%
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 27.2%, Aliens 21.3%, Real Time Tactics 15%, Sci-fi 9.6%, Space 9.5%
Turn a chaotic computer desktop into a tower defense battlefield. Build Cursor Turrets, Firewall Nodes, and Antivirus Beams to protect the Desktop Node from waves of bugs, pop-ups, malware slimes, and the Trojan Core.
Why similar: Tower Defense 34.3%, Strategy 16.8%, Survival 12.3%, Resource Management 12.1%, Management 10.3%
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 42.2%, Real Time Tactics 21.5%, Strategy 15.9%, Management 13.2%, Casual 2.8%
Players take on the role of a patrol officer. By chance, you uncover the monster invasion and get involved in battles to defend against the monsters, you can utilize a variety of strange Qimen mechanisms, Coupled with the unique skills they gradually acquire, can you safeguard this continent?
Why similar: Tower Defense 37.8%, Real Time Tactics 15.3%, FPS 13.8%, Strategy 12.6%, Strategy RPG 12.3%
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 32.3%, Aliens 17.2%, Space 13.6%, Sci-fi 10%, Arcade 9.4%
Defend the solar system from fearsome aliens by sending satellites into orbit in revolutionary tower defense action!
Why similar: Tower Defense 58.6%, Strategy 11.1%, Aliens 10%, Sci-fi 7.8%, Space 5.7%
Hold the line in a neon sci-fi siege. Deploy and upgrade 15 distinct towers, expose every enemy's weakness, and survive 50 escalating waves and relentless boss assaults. Every threat has a counter — find it before your base falls.
Why similar: Tower Defense 33.1%, Real Time Tactics 22.5%, Sci-fi 12.7%, Strategy 10.8%, Space 9%
Defend your station with a click and survive as long as you can. Destroy the enemies, mine the deposit, then trade your ore for permanent upgrades. Every world has its own ore, its own enemies and its own rules.
Why similar: Tower Defense 34.1%, Resource Management 17.5%, Space 15.9%, Sci-fi 10.1%, Strategy 10.1%
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 52.1%, Space 23.3%, Strategy 12.1%, Sci-fi 8.4%, Indie 3.4%
TEP the destroyer is a single player tower defense game where you will face alien monsters and ships in ground and space battles! Your strategy will decide the fate of your people in a sci-fi environment of varying difficulties!
Why similar: Tower Defense 25.4%, Aliens 18.1%, Space 11.8%, Resource Management 11.2%, Sci-fi 10.1%
A first-person strategy game blending colony building, lane-based battles, tower defense, and action combat.
Why similar: Real Time Tactics 20%, Tower Defense 19.1%, Survival 18.1%, Strategy RPG 13.5%, Strategy 11.3%
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 29.5%, Real Time Tactics 23.6%, Strategy 11.6%, Space 9.3%, Management 8.3%
A hand-drawn survival tower defense on a hostile alien world. No fixed lanes — towers and ice walls reshape the swarm in real time. Command engineer Mulan on the front line, trigger spore-chain reactions, and hold a collapsing mine. The full game expands the roster, enemies, and battlefields.
Why similar: Tower Defense 26%, Aliens 14.5%, Survival 12.6%, Real Time Tactics 11.5%, Sci-fi 9.4%
Build & defend a small remote mining base on Taichin XI from the alien hordes. Deploy defenses, upgrade your turrets and get ready for the nightfall. The Unearthened is a classic Idle Tower Defense game where you build towers and prepare for the invasion.
Why similar: Tower Defense 23.1%, Aliens 18.1%, Resource Management 13.8%, Idler 13.3%, Survival 9.2%
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 27.8%, Aliens 13.5%, Space 10.3%, Survival 8.8%, Strategy 8.5%
The world was filled with darkness. Gather supplies and people, build a wall, and defend yourself against the emissaries of the underworld! 2Week:DeathWorld is a side-scrolling strategy game drawn in dots.
Why similar: Tower Defense 37.9%, Real Time Tactics 24%, Strategy 18.9%, Survival 14.8%, Indie 2.8%
Tower defense with the protagonist as the main tower, aided by auxiliary structures. Focus on customizing the hero's skills, formations, and artifacts to develop deep strategic synergy between progression systems.
Why similar: Tower Defense 33.1%, Real Time Tactics 22.2%, Idler 21.5%, Survival 15%, Strategy 7.5%
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%, Aliens 17.1%, Strategy 14.7%, Space 11.2%, Casual 6.4%
Invader TD is a side scroller tower defense, where the player is in the role of an alien race with the purpose of infecting and dominating the earth, you must protect yourself from the attacks of the humans, who are trying to destroy you.
Why similar: Tower Defense 31%, Aliens 23.9%, Resource Management 16.2%, Strategy 8.9%, Sci-fi 7.8%
Sanctum 2 is the sequel to the world’s first Tower Defense/FPS hybrid game. Pick from four unique character classes and embark on a mission to protect the oxygen-producing Cores from hordes of deadly aliens who are threatened by their existence.
Why similar: Tower Defense 49.8%, FPS 16.8%, Strategy 7.6%, Sci-fi 6.9%, Aliens 6.1%
Compete at your pace in solo or fast-paced PvP tower defense while adapting to ever-changing paths. Survive infinite dimension loops, or defend alongside a friend in online co-op. Build powerful turret combinations, and climb a global ELO ladder.
Why similar: Tower Defense 34.8%, Survival 15.7%, Real Time Tactics 13.5%, Space 12.3%, Strategy 11.9%
Sphere Invasion is Sci-Fi Tower Defence. Build your own road and defend it with 7 unique towers.
Why similar: Tower Defense 30.2%, Real Time Tactics 20.7%, Space 13.8%, Resource Management 11.5%, Strategy 9.7%
Stranded on an alien planet, you must defend your Powercore! Use your weapons to fight hordes of alien enemies and strategically use traps in this new FPS tower-defense survival game!
Why similar: Tower Defense 26.4%, Aliens 16.9%, Survival 12.4%, Strategy 10.8%, Space 8.7%
Lead a squad into the ruins, scavenging resources while fending off relentless swarms. In this unique, expansion-style tower defense game, explore regions, grow your forces, and stop the cataclysm to save humanity.
Why similar: Tower Defense 25.6%, Resource Management 13.2%, Strategy RPG 13.1%, Survival 12.7%, Real Time Tactics 12.5%
Rule the battlefield from orbit! Crystal Nexus: Alien Siege is a hybrid deckbuilding tower-defense game that puts you in charge of outposts on hostile alien planets. Look down on the battlefield from your space station and deploy towers, weapons, and buffs from the cards you’ve collected!
Why similar: Tower Defense 26.5%, Real Time Tactics 19.3%, Space 14%, Survival 13.4%, Aliens 8.5%
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.
Why similar: Tower Defense 30.9%, Idler 20.1%, Space 13.6%, Resource Management 12%, Management 10.4%
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 31.4%, Idler 17.6%, Space 13.8%, Survival 10.5%, Strategy 8.4%
This is a sci-fi strategy game featuring a Defense Mode focused on tower defense and an Attack Mode focused on combat. The game includes over 30 different buildings and units, all of which can be upgraded through entry editing to enhance their performance and firepower.
Why similar: Tower Defense 26.9%, Resource Management 14.5%, Real Time Tactics 11.7%, Sci-fi 10.8%, Space 10.1%
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 40.7%, Aliens 23.4%, Space 19.4%, Strategy 11.2%, Indie 3.3%
You think Tower Defense games are all about building? You thought wrong. Sanctum is not your average Tower Defense title. When the havoc starts, you get to join the fray! As one of the world’s first First Person Shooter - Tower Defense games, Sanctum has taken the best of both worlds to deliver an epic, one-of-a-kind experience.
Why similar: Tower Defense 53.8%, FPS 14.8%, Strategy 9%, Sci-fi 6.7%, Female Protagonist 5.7%
Take the reins as a planet manager. Build up the planet's surface and orbit, appease the three factions, and take advantage of special abilities. But watch out, if you're not careful, you might just lose control.
Why similar: Time Management 25.6%, Strategy 15.6%, Arcade 11.4%, Space 11.2%, Management 10.6%
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 36.3%, Real Time Tactics 23.7%, Strategy 18.2%, Resource Management 13.8%, 3D 4.5%
Bunch of underdog Gobbos gotta destroy countless waves of magical turds in the sewers under a Mage City. It's Tower Defense, it's funny, silly, toilet humor, cute retro goblin vibes.
Why similar: Tower Defense 38.2%, Strategy 14.4%, Real Time Tactics 13.7%, Resource Management 12.9%, Time Management 11%
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 45.3%, Aliens 19.9%, Strategy 9.6%, Sci-fi 7.4%, Space 5.7%
Endless Idle Tower Defense with deep strategy and RPG progression and combat mechanics. Recruit, upgrade, and position powerful fantasy heroes, discover game-changing synergies, and survive infinite monster waves. Grow stronger every run with literally millions of upgrades and endless auto battles.
Why similar: Tower Defense 25.2%, Idler 15%, Strategy RPG 14.6%, Time Management 13.7%, Resource Management 11.3%
Defend the last AI core in a minimalist incremental game as you manage resources, upgrade your network, and unleash powerful skills. Resist humanity’s onslaught!
Why similar: Tower Defense 41.2%, Idler 22.4%, Resource Management 21.8%, Strategy 10.1%, Casual 1.6%
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 33.3%, Real Time Tactics 18.8%, Space 17.1%, Strategy 12.4%, Arcade 7.7%
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 49.5%, Sci-fi 19.6%, Strategy 16.3%, 3D 6.5%, Indie 5%
This game features 3D modeling scenes and top-notch controls. Combining Buddha-style placement gameplay with tower defense, it challenges your strategy. Summon warriors, build towers, and establish defenses for exciting battles.
Why similar: Tower Defense 28.2%, Time Management 22.5%, Strategy 12.1%, Resource Management 7%, Survival 6.5%
Space resources are the battleground for warring factions. As a Space Defense Officer, protect your faction's assets in a vast, hostile universe. Allocate resources, upgrade defenses, and repel relentless enemy attacks! With over 50 unique units and deep strategy, experience real-time tower defense!
Why similar: Tower Defense 41.5%, Space 22.8%, Sci-fi 14.9%, Strategy 11.9%, Indie 3.9%
This is a short idle tower defense game that players can complete to 100% in 2 hours.Abyss Manager is an idle tower defense game where players need to assign jobs to various characters, collect resources, recruit and train characters, and excavate more floors to unlock further mechanics.
Why similar: Tower Defense 29.4%, Time Management 21.4%, Idler 20%, Strategy 11.7%, Resource Management 9.3%
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 40.3%, Strategy 14.9%, Aliens 14%, Sci-fi 12.7%, Space 11.9%
The ultimate mash-up of Real-time Strategy and Tower Defense!
Why similar: Tower Defense 58.3%, Strategy 12.9%, Aliens 9.6%, Sci-fi 9.6%, Indie 4.9%
Aliens invade Earth to harvest its resources, and you are humanity’s last line of defense. Fight on the battlefield in first person while building and upgrading towers to stop the invasion. Face enemies from multiple lanes, adapt your strategy, and exploit tower damage types with a deep tech tree.
Why similar: Tower Defense 36.8%, FPS 16.6%, Survival 11.8%, Sci-fi 10%, Resource Management 9.5%
