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

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.

War Heroes: Invasion
Mighty towers, powerful explosions, epic battles - all these and much more awaits you in this one of the best Tower Defense games. Evil tanks, warplanes, mortar men and machine-gunners are ready to attack the land of civilians. Take the challenge and commence the battle!

Space Cycle
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!
Mighty towers, powerful explosions, epic battles - all these and much more awaits you in this one of the best Tower Defense games. Evil tanks, warplanes, mortar men and machine-gunners are ready to attack the land of civilians. Take the challenge and commence the battle!
Why similar: Strategy 52.3%, Tower Defense 39.4%, Indie 8.3%
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 37.5%, Space 23.7%, Strategy 19%, Sci-fi 13.2%, Casual 2.8%
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 37.5%, Strategy 25.3%, Space 14.5%, Sci-fi 9.1%, Casual 7.8%
Many years ago, when the Earth was ruled by chaos and anarchy, when a tribe crushed another tribe for wealth and to please the gods. In the cradle of the Apennine Peninsula a kingdom has been born, which will become the greatest empire and conquer all of the ancient world.
Why similar: Strategy 47.5%, Simulation 26.4%, Casual 18.5%, Indie 7.6%
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 31.9%, Strategy 27.2%, Space 13.4%, Sci-fi 12.1%, RTS 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 40.8%, Strategy 25.5%, Space 24.6%, Sci-fi 6.9%, Indie 1.5%
A thrilling story-driven action RPG, with a rich open world, set in 15th century Medieval Europe. Experience the ultimate medieval adventure - through the eyes of young Henry - as you embark on a journey of epic proportions.
Why similar: Singleplayer 100%
A Chinese underworld-themed TD game. Alter paths with anchors, build towers freely. Boost tower stats/effects by brewing the Pot of Oblivion with herbs. Place talisman traps on paths. Features varied maps, initial path challenges, and strategic obstacles.
Why similar: Tower Defense 58%, Strategy 28.4%, Casual 6.9%, Indie 4.3%, Singleplayer 2.4%
Stick Ragdoll Battle Simulator is a fun real-time strategy game with ragdoll physics. Protect your tower and destroy the enemy's.
Why similar: Tower Defense 31.6%, Strategy 27.5%, Simulation 16.1%, RTS 11.8%, Casual 10.8%
Find the best combinations of projectiles and components to create the ultimate weapon. Mutate and upgrade your components to create stronger weapons. Fight wave after wave of monsters to reach the top.
Why similar: Tower Defense 41.9%, Strategy 35.7%, Sci-fi 14.6%, Casual 7%, Singleplayer 0.8%
Pilot your ship across a procedurally generated star map as corruption spreads inward. Each sector holds a stabiliser; protect it from raiders and pump energy into its shields. Jump between nodes, prioritise threats, and manage energy. Hold the line until time runs out, or be consumed by corruption.
Why similar: Space 30.2%, Strategy 28.8%, Space Sim 24.6% ★, Sci-fi 8.7%, Simulation 6.9%
Escape from daily life and immerse yourself in the exciting tower defense strategy game 'Little TD'. Experience a unique gaming style in 'Little Tower Defense', with various fresh game modes that are different from traditional tower defense.
Why similar: Tower Defense 43.2%, Strategy 29.8%, Simulation 14.1%, Casual 9.7%, Singleplayer 1.6%
"Evolve your gameplay in this genre-bending Tower Defense. Your choices dictate the mechanics: enhance classic TD strategies, fuse them with other modes, or abandon defense entirely. It's like unlocking countless mini-games in one package—every level offers a fresh, unique experience."
Why similar: Tower Defense 31.3%, Strategy 19.6%, RTS 12.2%, Space 10.7%, Simulation 9.7%
A strategy planetary defense game across the galaxy. Defend your territories while planing for your future.
Why similar: Strategy 41.1%, Tower Defense 27.4%, Space 19%, Sci-fi 11.2%, Singleplayer 1.4%
The enemy onslaught surges like a tidal wave! Ranged archers threaten your heroes, while colossal bosses seek to shatter your walls. Hold the immortal front! Face the endless challenge!
Why similar: Tower Defense 44%, Strategy 39.7%, Casual 15%, Singleplayer 1.4%
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 48.2%, Strategy 28%, Sci-fi 18.7%, Indie 3.1%, Singleplayer 2%
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 43.1%, Tower Defense 31.4%, Space 21.7%, Indie 2.4%, Singleplayer 1.4%
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 44.1%, Strategy 28.6%, Space 15.3%, Sci-fi 9.7%, Indie 1.6%
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 40.6%, Strategy 27.3%, Simulation 11.8%, RTS 9.4%, Casual 8%
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 47%, Space 24%, Strategy 19.2%, Sci-fi 7.4%, Indie 2%
Set off in chase of the lost Sock! Lost Socks: Naughty Brothers is a brand new platformer set in a crazy world, with infinite fun and hardcore challenges. What sets this game apart is that the main character simply can’t stop, so the onslaught of enemies, barbs and bullets will be intense!
Why similar: Indie 100%
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 38.6%, Strategy 22.4%, Space 19.5%, Casual 10.6%, Sci-fi 5%
Creeper World 3 is what happens when cellular automata takes over a strategy simulation. Instead of discrete units that attack your base, a fluid-like substance spreads over the terraformable terrain. Your base, your weapons, your strategy... you must adapt them all.
Why similar: Tower Defense 60.3%, Strategy 19.4%, RTS 7.5%, Sci-fi 6.9%, Simulation 3.3%
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 43.1%, Strategy 29.6%, Space 14.3%, Sci-fi 9.9%, Indie 1.6%
The classic Minesweeper experience launched into a 3D space environment. Strategically reveal cells against a backdrop of stars and nebulae to beat your best times. Play the traditional beginner, intermediate, and expert difficulties or take control and create your own board in the custom mode.
Why similar: Space 38.1%, Strategy 34.1%, Sci-fi 20.5%, Casual 5.5%, Singleplayer 1.8%
4 turrets, a ship in peril, and waves of enemies. Hold the line and defend the ship, robot.
Why similar: Strategy 35.9%, Tower Defense 23.5%, Space 18.9%, Casual 10.7%, Sci-fi 8.8%
Fantasy Tower Defense is a challenging, fast-paced, and strategic Tower Defense game where you frantically build towers, cast spells, and upgrade to stop monsters from reaching your castle.
Why similar: Tower Defense 51.5%, Strategy 46.6%, Singleplayer 1.9%
"Panda Defense: Bronze Rush" is a 2D side-scrolling tower defense game. Play as the Panda Envoy, leading a quirky cast of pandas to help Bronze Beasts restore ancient artifacts. Embark on a mystical journey to collect divine relics and unite your companions in this ink-wash style adventure!
Why similar: Tower Defense 45.3%, Strategy 39%, Casual 14.6%, Singleplayer 1%
A simulation sci-fi game where players take on the role of the project manager of a space elevator project. They will progressively achieve project phase goals and ultimately accomplish the ultimate goal of constructing a Mars colonization spacecraft.
Why similar: Strategy 31%, Space Sim 23.7% ★, Simulation 18.9%, Space 17.2%, Sci-fi 8.5%
Manage your own farm in a turn-based defense game, and fend off swarming gangs with avocado towers you've grown yourself.
Why similar: Tower Defense 36%, Strategy 33.4%, RTS 15.5%, Casual 12.5%, Indie 1.7%
The replicator robots are back! It's 2528. The machines are increasingly infecting the planets with genetically modified monsters. Challenge them and try to stop the onslaught. Upgrade buildings and heroes, mine resources, discover technology and fight to save humanity!
Why similar: Tower Defense 54.1%, Strategy 26.7%, RTS 18.1%, Indie 1.1%
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 41%, Strategy 28%, Space 13.9%, Casual 9.1%, Sci-fi 6.1%
The endless expanse of space has never been such a dangerous place. Take command as a Space Fleet Admiral who will face the challenge of galactic war and determine the fate of the universe.
Why similar: Strategy 29.9%, Space Sim 22.9% ★, Simulation 14.5%, Sci-fi 12.3%, RTS 11.3%
Defend the CPU of your computer from the waves of virus invasions in this pixel-art tower defense game!
Why similar: Tower Defense 50.1%, Strategy 30.9%, Casual 10%, Sci-fi 6.9%, Singleplayer 2%
A small quick game about building a factory to launch planets into a solar system! Grow your base and increase production to make the ultimate factory for launching planets!
Why similar: Strategy 28.2%, Space Sim 20.3% ★, Simulation 16.4%, Space 13.4%, Casual 11%
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 44.9%, Strategy 26.4%, Simulation 13.3%, Sci-fi 11.5%, Indie 4%
Welcome to The Next World - a strategic visual novel telling the story of a crashed colony ship and its ragged group of survivors, trying to make a new life on the wrong planet. Craft plans, make decisions, and manage your colony's limited resources in a desperate fight to stay alive.
Why similar: Strategy 39.9%, Sci-fi 33.1%, Casual 18.7%, Indie 8.2%
Stand as humanity's shield against relentless waves of cosmic foes in this gripping sci-fi tower defense game. Employ advanced weaponry and deploy strategic defenses to repel enemy hordes across the galaxy's expanse. Can you withstand the onslaught in Galactic Frontiers?
Why similar: Tower Defense 33.2%, Space 19.3%, Strategy 15.4%, RTS 13%, Sci-fi 12.2%
Fight monsters with monsters! Heroes Battle Awakening is a top-down tower defense tactics game that puts you in command of cyclops knights, minotaurs, skull-topped guard towers and more as you fend off invaders.
Why similar: Tower Defense 52.9%, Strategy 36.8%, Casual 7%, Indie 2.1%, Singleplayer 1.2%
Drive big trucks faster than ordinary cars, and be careful, coz you are not alone on the road.
Why similar: Simulation 100%
A fan-made Touhou Project tower defense! Summon towers, merge them, collect cards to enhance them, and fend off waves of enemies!
Why similar: Tower Defense 46.5%, Strategy 24.2%, Simulation 17.4%, Casual 9.2%, Indie 1.6%
A tower defense game based on Japanese castles. Excavate the ground to create a moat, build walls and turrets, and fight off the enemies that attack you!
Why similar: Strategy 39%, Tower Defense 34.4%, Simulation 20.3%, Indie 6.2%
Extinction Protocol is a unique blend of strategy and adventure. Take control of a construction ship. Plan your fight against enigmatic war machines. Make the most of challenging missions and explore the ever-changing wasteland.
Why similar: Strategy 41.7%, Tower Defense 30%, Simulation 21.8%, Indie 6.5%
Orion Defense is a space-themed shooting game with a tower defense element. You will build turrets or manually control turrets to repel incoming enemy attacks in a space fortress. You will also pilot fighters to stop enemy fleeing and capture enemy commanders in the asteroid belt.
Why similar: Tower Defense 33.6%, Strategy 22.6%, Space Sim 20.4% ★, Space 11.6%, Casual 9.9%
The essence of the Heliconian is to manage a mixed crew of renegades aboard the starship Heliconian. Manage the crew member’s actions and the ship’s functions to survive as long as possible while exploring the star system in the hopes of earning upgrades and ultimately a safe haven.
Why similar: Strategy 37.2%, Simulation 20.7%, Casual 12.4%, Space 9.5%, Space Sim 8.1% ★
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 49.6%, Strategy 22%, Space 16.5%, Casual 8.3%, Indie 2.6%
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 44.4%, Strategy 32%, Space 19.8%, Indie 3.8%
Slime Virus Defense is a 2D strategy game where animal towers defend your computer from invading virus-like slimes. Use unique tower classes and skills to develop strategies and stop the slime invasion before it's too late!
Why similar: Tower Defense 45.4%, Strategy 40.2%, Sci-fi 11.4%, Indie 2%, Singleplayer 1%
Colony Siege combines the best of RTS and tower defense, including base building, mazing, and unit physics. Defend Earth's remaining colonies using an arsenal of deadly weapons to torch, slice, throw, and impale swarms of alien invaders.
Why similar: Strategy 39.2%, Tower Defense 28.4%, Simulation 15%, Sci-fi 8.4%, RTS 8.1%
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 37.2%, Strategy 21.6%, Sci-fi 13.4%, Space 9.7%, RTS 8.6%
Build, defend and conquer in a strategic 3D tower defense game filled with unique enemies and challenging maps!
Why similar: Tower Defense 47.5%, Strategy 27.1%, Sci-fi 13.5%, Casual 10.5%, Singleplayer 1.3%
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: Tower Defense 33.6%, Strategy 28.4%, Space Sim 20.2% ★, Space 9%, Sci-fi 8.1%
Gravitation is a sandbox simulation set in the vastness of the cosmos and built on the laws of real-world physics.
Why similar: Strategy 30.6%, Space Sim 22.9% ★, Simulation 17.9%, Space 14.2%, Casual 12%
Rampart Defense is a classic tower defense game where you strategically deploy troops and vehicles to protect your colony from waves of enemies.
Why similar: Tower Defense 50.9%, Strategy 35.3%, Sci-fi 11.2%, Indie 1.6%, Singleplayer 1%
As a member of an elite squad, you are tasked with a mission to penetrate into the great abyss. You are to explore an unknown cave system and eliminate all threats that may arise, Good luck Soldier!
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 35.9%, Strategy 28.6%, Space 17.4%, Sci-fi 12%, RTS 5.6%
Mysterious island portals unleash plague monsters targeting "Guardian Monuments"—their destruction dooms the island. As defender, use a bow (break armor/hit weak points) and a magic sandtable: place towers, real ones rise to block. Game has VR/desktop versions and map editing for custom levels.
Why similar: Tower Defense 39.6%, Strategy 35.6%, Simulation 13.4%, Casual 10.1%, Singleplayer 1.4%
Build your team, collect equipment, potions, gems, choose upgrade rewards, and withstand wave after wave of enemy attacks.
Why similar: Tower Defense 42.3%, Strategy 29.5%, Simulation 17.2%, Casual 8.7%, Indie 1.7%
In this tactical combat & dungeon crawler mash-up, explore a massive dungeon, full of danger, mystery and secrets. Fight your way through hordes of enemies and powerful creatures, with your tank, healer & damage dealers party.
Why similar: Strategy 84.3%, Indie 10.9%, Singleplayer 4.9%
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: Strategy 38.2%, Tower Defense 38.1%, Space 20.5%, Indie 2.1%, Singleplayer 1.1%