
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.
60+ similar titles based on shared tags and player behavior. Themes include Strategy, Action RTS, Real Time Tactics, RTS.

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.

Tower Defense Ultimate: Crashfall Protocol
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.

TAVU
TAVU is a PvE RTS game with a tactical combat system. Build your bases and defend them against waves of enemy attacks. Upgrade your units and destroy enemy bases to gain new territories and resources.
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 26.7% ★, Tower Defense 17.7%, Real Time Tactics 15.9%, RTS 12.5%, PvE 7.1%
TAVU is a PvE RTS game with a tactical combat system. Build your bases and defend them against waves of enemy attacks. Upgrade your units and destroy enemy bases to gain new territories and resources.
Why similar: Action RTS 20.8% ★, Real Time Tactics 15.3%, RTS 14.4%, Tower Defense 9.8%, PvE 8.1%
Build, upgrade, evolve, and reposition your towers to counter new threats, explore powerful synergies, and stay one step ahead in this fast-paced fantasy tower defense.
Why similar: Action RTS 29.3% ★, Tower Defense 19%, Real Time Tactics 15.7%, RTS 10.3%, Tactical 6.8%
Island Crusaders is a cute yet brutal tactical RTS game. Defend your home against swarms of enemies as your picturesque island gets stained by the blood of your enemies. Unlock new and unique units, strategically place and move them, and defeat the impending army.
Why similar: Action RTS 23.3% ★, Real Time Tactics 19%, Tower Defense 16.3%, RTS 15.6%, PvE 7%
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 23.2% ★, Real Time Tactics 15%, Tower Defense 14.7%, RTS 13.6%, Robots 7.5%
A physics-driven tower defense game where one massive cube does everything: fight, build, activate, and survive. Drop into a neon sci-fi battlefield, hold back waves of Chaos Dice, and power up your defenses through energy, momentum, and precision.
Why similar: Action RTS 29% ★, Tower Defense 18.6%, RTS 18.2%, Real Time Tactics 16.7%, Strategy 7.8%
Reapers Inc., is a fast-paced RTS where you lead an elite squad to defend your base against relentless intergalactic threats. Navigate diverse planetary biomes, strategically manage your squad, and use quick decision-making skills to exterminate your foes. Stand your ground, and reap the rewards.
Why similar: Action RTS 31% ★, Real Time Tactics 18.5%, RTS 14.5%, Difficult 10.6%, PvE 8.7%
Use projectile-based towers, unique tower interactions, and overpowered weapons to strategically conquer the endless waves in this 3rd-person tower defense game!
Why similar: Action RTS 23.1% ★, Tower Defense 19.2%, Real Time Tactics 11.6%, RTS 10.7%, Difficult 10.1%
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: Action RTS 23% ★, Tower Defense 20.4%, Real Time Tactics 18.5%, RTS 17.4%, Strategy 7.9%
Command knights, aliens, and other historically dubious nations in a free real-time tower conquest game rebuilt from a 2009 iPad original. Grow armies, capture towers, and outmaneuver adaptive AI through 30 campaign levels.
Why similar: Action RTS 36.5% ★, Real Time Tactics 20.4%, RTS 12.7%, PvE 8.7%, Top-Down 7%
Our Last Stand is a tower defence game that allows you to command a powerful mech and defend against relentless waves of enemies. Play on different worlds to gather resources, unlock advanced technology, and level your commander to gain powerful new abilities. Build defend, survive.
Why similar: Action RTS 29.7% ★, Tower Defense 19.1%, RTS 18.7%, Real Time Tactics 17.1%, Strategy 8%
Customize your Ships, Upgrade your fleet, and Command your way to victory in this ruthless rogue-lite tower defense/real time strategy hybrid. Take on an enemy that learns from your moves and adjusts its own path. Do you have what it takes to persevere?
Why similar: Action RTS 21.9% ★, Tower Defense 15.8%, RTS 15.1%, Real Time Tactics 13.3%, Difficult 7.3%
It’s a defense game where you create your own strategy, grow your units, and defend against enemies.
Why similar: Action RTS 30.3% ★, Tower Defense 19.4%, Real Time Tactics 18.4%, RTS 17.3%, Strategy 5%
DefenseCraft brings revolutionary new mechanics to the tower defense genre, combining the traditional tower defense style with exploration, crafting, and more! Gather materials to create the ultimate defenses to survive the hostile ecosystem.
Why similar: Action RTS 27.2% ★, Tower Defense 17.9%, Real Time Tactics 16%, RTS 15.5%, Resource Management 6.1%
A twist on the tower-defense genre, play as a bear tribe chief defending their home against the forces of the ocean as they attack you in anger and retaliation due to overfishing. Place towers, command minions, and defend the camp from the enemy.
Why similar: Action RTS 27.9% ★, Real Time Tactics 17%, Tower Defense 16.1%, RTS 13.1%, PvE 7.4%
Join in on the next gold rush and become a prospector in space. In this unique tower defense you can set up and reposition towers for maximum efficiency and adapt to the environment.
Why similar: Action RTS 26.6% ★, Tower Defense 18.4%, RTS 16%, Real Time Tactics 15.4%, Sci-fi 5%
Scrap Metal Heroes Rebuilt is a real-time strategy game where you can customize a set of 4 robots with over 300 parts and fight them against an AI opponent or other players.
Why similar: Action RTS 20.6% ★, Real Time Tactics 19.5%, Tower Defense 19%, Robots 9.6%, Resource Management 6.3%
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 34.7% ★, Tower Defense 20%, RTS 17.3%, PvE 9.9%, Top-Down 6.2%
Become the last guardian of the kingdom and defend the throne! Fight on the front lines with your sword, build barricades and towers between waves, and upgrade your hero. Throneguard: Last Stand is a 3D medieval action tower defense game.
Why similar: Action RTS 31.5% ★, Tower Defense 20.9%, Real Time Tactics 16.4%, RTS 11.1%, Strategy 4.6%
Sorcs: Siege Chronicles is an indie 3D tower defense with: - Free positioning for towers - FPS mode - Configurable AI for towers - 4 skill trees - 25 levels with 3 difficulty modes - 20-25 hours to complete 100%
Why similar: Action RTS 28.2% ★, Tower Defense 17.5%, Real Time Tactics 15.9%, RTS 15.6%, Top-Down 5.4%
Okashi Towers is a Real Time Strategy game with Tower Defense elements. Gather candy resources to build tower units or go on offense and summon creatures to attack other player bases. Join with up to 8 players and choose one of the four factions that fits your play style best
Why similar: Action RTS 27.3% ★, Tower Defense 17.3%, Real Time Tactics 16.6%, RTS 16.1%, PvE 5.5%
A 3D FPS/TPS Tower Defence game in a sci-fi world, defend your base from corrupted robots and unlock better turrets
Why similar: Action RTS 24.7% ★, Tower Defense 15.9%, Real Time Tactics 14.7%, RTS 14%, PvE 9%
A Roguelike tactics game where you fight hordes of aliens. Your Units evolve and learn new skills as the fight goes on. Manage your squad of 5 specialised mercenaries, and fight a never ending war against the infestation.
Why similar: Action RTS 31.7% ★, Real Time Tactics 22.7%, RTS 15%, PvE 8.8%, Strategy 5.8%
Defend your tower for as long as you can from the aliens invading your space! Level up, earn money and new units, and strategically place them in the grid!
Why similar: Action RTS 31.4% ★, Tower Defense 20.1%, RTS 13.3%, PvE 8.8%, Robots 6.6%
Para Bellum - Hold the Line is a 3D real time small unit tactics game. Your task is to hold off enemy attacks wave after wave using a variety of different Units and Supports in your arsenal to the best of your abilities in Campaign and Skirmish modes.
Why similar: Action RTS 30% ★, Tower Defense 18.2%, Real Time Tactics 18.2%, RTS 16.9%, Top-Down 4.9%
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 25.7%, Action RTS 24.6% ★, RTS 20.6%, Real Time Tactics 13.1%, Strategy 7.7%
Atom Assault throws you into a chaotic Red vs Blue war where everything explodes, infantry fish for money, and you can even pilot nukes in first person. Full 3D, fully destructible world, fast, funny, proudly indie. If you miss old school RTS mayhem, this one hits hard.
Why similar: Action RTS 28% ★, Tower Defense 17.2%, Real Time Tactics 16.5%, RTS 16.4%, Robots 7.8%
Lead your chicks from the barn into battle and defend your farm against endless waves of hungry enemies. Combine strategy, action, and humor in a charming comic world, level up your units, and defeat powerful generals in thrilling boss fights.
Why similar: Action RTS 36.6% ★, Real Time Tactics 20.6%, Tower Defense 16.6%, RTS 9.3%, PvE 6.6%
3D Real-time strategy attack enemy defense with upgradable summoned units. You play as Spirit Summoner to destroy modern human sophisticated defenses of a small city. Devise a masterful strategy that utilizes your summoned creatures to their fullest potential and breach their fortifications.
Why similar: Real Time Tactics 28.6%, Tower Defense 19.3%, Action RTS 12.6% ★, RTS 11.8%, Strategy 8.6%
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 34.9% ★, Tower Defense 22.3%, Real Time Tactics 20.3%, Strategy 8.6%, Top-Down 5.4%
Ratatata is an isometric Tower Defense game where you lead a space rat kingdom fending off a ruthless cat invasion! Fight across diverse environments and adapt your strategies to survive the relentless waves of these fierce felines!
Why similar: Action RTS 31.7% ★, Tower Defense 20.1%, Real Time Tactics 18.6%, RTS 17.9%, Strategy 5.6%
Cosmic Stronghold is a mix of the genres RTS and Tower Defense. Your primary goal is to keep your space station alive for as long as possible, so that it can harvest the nearby mines for precious mineral ores. You will be faced with waves of enemies, getting stronger and stronger for each wave.
Why similar: Action RTS 30.3% ★, Tower Defense 18.6%, Real Time Tactics 18.3%, RTS 17.3%, Top-Down 5.7%
A cute hand-drawn 2D medieval RTS game. Gather resources, build your base, develop by day, and defend against monster hordes at night to protect your realm.
Why similar: Action RTS 35.3% ★, Real Time Tactics 20.7%, Tower Defense 17.3%, RTS 13.5%, Strategy 5.5%
Protect the base from an alien invasion. Place cannons and destroy the invaders. Upgrade cannons to resist the enemies.
Why similar: Action RTS 26.6% ★, Tower Defense 18.9%, Real Time Tactics 17.4%, RTS 16.6%, Top-Down 5.5%
Paddle Protectors is an mix of tower defense, real-time strategy and city-building. You will fight against crabs. Establish farms and factories to produce ammunition and resources, fortify your land, lead your soldiers and tanks.
Why similar: Action RTS 30.5% ★, Tower Defense 20.4%, Real Time Tactics 15.7%, RTS 15.6%, Top-Down 4.9%
Master strategic gameplay as you build, train, and upgrade units to protect your base. With an immersive storyline, stunning visuals, and easy controls, it's an epic battle for survival!
Why similar: Action RTS 37% ★, Tower Defense 21.6%, RTS 19%, Linear 7%, Strategy 5.6%
IntraTD is a top-down tower defense strategy game. Fight against clever enemies by crafting unique strategies with your skills and towers in Intra's story of rescuing the Gravgasians. Manage towers and defend the main tower with your little hero. Explore maps designed with stylized realism.
Why similar: Action RTS 24.5% ★, Real Time Tactics 18.5%, Tower Defense 15.4%, Difficult 11.6%, Tactical 6.5%
Help defend Shanghai from an invasion of snowmen! Build and upgrade towers across a battlefield that changes every run, shape your strategy with powerful cards and between-wave rewards, and survive escalating waves and boss encounters in this roguelite tower defense.
Why similar: Action RTS 26.7% ★, Tower Defense 18.8%, Real Time Tactics 17.5%, RTS 14.8%, Top-Down 5.9%
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 36.8% ★, Tower Defense 21.4%, RTS 18.8%, Sci-fi 5.8%, Resource Management 5.6%
Byte Lynx is a fast-paced RTS with no units. Build defenses, dismantle your enemy, and steal their buildings in this deeply tactical building combat-based strategy game. Expand your arsenal across a series of diverse levels!
Why similar: Action RTS 27.5% ★, RTS 15.8%, Tower Defense 15.3%, Real Time Tactics 13%, PvE 7%
Yãkoana: Dreams of Resistance is a strategy game with roguelite and tower defense elements. Defend your people’s legacy against colonizers, mastering the land and awakening ancient powers in a relentless fight for freedom.
Why similar: Action RTS 25.8% ★, Tower Defense 20.3%, RTS 17.4%, Real Time Tactics 15%, Tactical 7.2%
SiegeBorn is a top-down action RTS. Lead your troops, command powerful siege engines, and defeat the enemies!
Why similar: Action RTS 30.7% ★, Real Time Tactics 18.7%, RTS 15.2%, Tower Defense 14%, PvE 8.9%
A tower defense game that demands high skill in both controls and deck building
Why similar: Action RTS 36.7% ★, Tower Defense 24.1%, Real Time Tactics 21.1%, Strategy 9.5%, Tactical 4.8%
Classic tower defense rules meet modern systems. Build medieval towers, face adaptive waves, and experiment with upgrades, modifiers, and roguelike progression.
Why similar: Action RTS 34.8% ★, Real Time Tactics 20.4%, RTS 20.2%, Strategy 8.2%, Tower Defense 4.3%
It’s a defense game where you create your own strategy, grow your units, and defend against enemies.
Why similar: Action RTS 29.9% ★, Tower Defense 20.6%, Real Time Tactics 18.1%, RTS 17.6%, Tactical 5.1%
Take the role of a Defence Commander and protect UPF assets remotely through the use of your Adaptable Nano Tablet in this immersive, PC focused Tower Defence Game. It's designed to be a tough but rewarding experience with character progression and the ability to configure towers to your own liking.
Why similar: Action RTS 23.8% ★, Tower Defense 17.5%, Real Time Tactics 15.7%, RTS 12.6%, Sci-fi 5.5%
Defend the Dead is a 3D action tower defense game where pesky humans try to destroy your chaos crystal Set traps, cast spells, and rise into battle, upgrading your skills to fend off endless waves.
Why similar: Action RTS 29.9% ★, Tower Defense 19.4%, Real Time Tactics 18.2%, RTS 17%, Strategy 5.3%
"Godcall Defense Line" is a multiplayer cooperative game. It combines action, strategy, real - time strategy, and tower defense. Players can summon gods, ghosts, beasts, heroes, and build defenses like walls and guns to fend off continuous enemy attacks.
Why similar: Action RTS 32.1% ★, Tower Defense 18.7%, Real Time Tactics 18%, RTS 12.8%, Tactical 6.7%
AoG is a real-time strategy game (RTS) with simplified mechanics and cute visuals, but VERY challenging at times. Lead your goblin tribe into what they do best: expand, conquer, and exterminate each other. Any resemblance to humans is purely coincidental.
Why similar: Action RTS 25.6% ★, Real Time Tactics 17.6%, RTS 17.2%, Tower Defense 14.1%, Difficult 10.9%
Voxel Vanguard is a dynamic strategy game set in a vibrant voxel world where players must strategically expand their territory by placing interconnected towers. Navigate through voxel worlds, strategically deploy towers, and connect them with tethers to fend off threats and conquer new territories.
Why similar: Action RTS 28.5% ★, Tower Defense 18.7%, Real Time Tactics 18.7%, RTS 16%, PvE 7.6%
Little Kingdom RTS is an indie real-time strategy game set in a medieval fantasy world. Gather resources, build settlements, raise walls, and grow your small kingdom. Command an army of knights, archers, and mages to fight off rival kingdoms, orcs, and undead.
Why similar: Action RTS 24.8% ★, Tower Defense 19%, RTS 17.1%, Real Time Tactics 17%, Resource Management 5.8%
Real-time territory conquest. Claim regions on procedurally generated maps, forge alliances, and betray them. Every game is player-hosted — host it yourself and play with friends over Steam or LAN. No accounts, no tracking.
Why similar: Action RTS 33.6% ★, Real Time Tactics 21.9%, RTS 19.9%, Tactical 7%, Top-Down 6.8%
HEX Defense is a tower-based strategy game set in a hexagonal world where you have to fight enemy forces by combining simple blocks into complex tower patterns.
Why similar: Tower Defense 24%, Real Time Tactics 21.7%, RTS 19.9%, Strategy 9.3%, Robots 8.2%
Keep is a WW2-themed strategy shooter where you place flak turrets to defend your fortress, then jump into first-person mode to shoot down enemy planes. Switch between tactical planning and direct combat in a fast-paced blend of strategy and action
Why similar: Action RTS 41% ★, Real Time Tactics 23.3%, RTS 19.2%, Tactical 5.5%, Strategy 5%
Build towers, shape enemy paths, and defend your outpost from endless waves. Survive escalating threats, destroy falling asteroid hazards, and push your defenses to their limits in Endless Mode.
Why similar: Tower Defense 24.6%, RTS 18%, Real Time Tactics 17.9%, PvE 9%, Sci-fi 6.7%
Prime Domination is a real-time strategy game where you build your base, manage finance, produce powerful military units, and battle against AI or other players in large-scale multiplayer matches with up to 10 commanders.
Why similar: Action RTS 32.7% ★, RTS 20.9%, Real Time Tactics 19.2%, Strategy 6.9%, PvE 6.8%
Defend your cult from the police and military. Build shrines, raise followers, and prepare for the attack.
Why similar: Action RTS 22.8% ★, Tower Defense 21.2%, RTS 21%, Real Time Tactics 9.5%, Resource Management 6.5%
Command from above. Fight from within. Viridian Corp. is a single-player sci-fi Action RTS and third-person shooter. Lead the Free Cluster, capture mining zones, direct your forces, then Mindwalk into a soldier and enter the battle yourself.
Why similar: Action RTS 33.4% ★, RTS 17.1%, Real Time Tactics 15.9%, Tactical 7.2%, PvE 6.6%
They Fear The Mist is a real-time strategy game, where you command your Troops, build your Settlement, fight off thousands of Enemies and explore the Unknowns of the Mist. Take command of your people and defend them from the incoming hordes… Can you survive?
Why similar: Action RTS 25.6% ★, RTS 17.6%, Tower Defense 15.7%, Real Time Tactics 15.1%, PvE 7.6%