
AT THE LIMITS OF EARTH, AT THE EXTREMITY OF HEAVEN. A REAL-TIME STRATEGY NIGHTMARE.
60+ similar titles based on shared tags and player behavior. Themes include Strategy, Action RTS, RTS, Sci-fi.

AT THE LIMITS OF EARTH, AT THE EXTREMITY OF HEAVEN. A REAL-TIME STRATEGY NIGHTMARE.

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.

Gewevo : Interstellar
Gewevo : Interstallar is a space strategy game derived from the tabletop RPG universe Gewevo. It offers an approach a little closer to a wargame with regard to the empire management aspect. Made with passion by a one-man team;)
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 25.1% ★, Tower Defense 17.2%, RTS 14.9%, Aliens 9.3%, Real Time Tactics 9.2%
Gewevo : Interstallar is a space strategy game derived from the tabletop RPG universe Gewevo. It offers an approach a little closer to a wargame with regard to the empire management aspect. Made with passion by a one-man team;)
Why similar: 4X 34.4% ★, Action RTS 23.8% ★, RTS 18.3%, Strategy 9.4%, Space 6.3%
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: 4X 22.9% ★, Action RTS 22% ★, RTS 16%, Tower Defense 12.6%, Real Time Tactics 6.4%
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 23.1% ★, RTS 17.6%, Tower Defense 16.3%, Isometric 10.5%, Space 8.5%
It’s a defense game where you create your own strategy, grow your units, and defend against enemies.
Why similar: Action RTS 26.9% ★, RTS 19.4%, Tower Defense 17.7%, Real Time Tactics 10.1%, Strategy 6%
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: Action RTS 32.4% ★, Tower Defense 20.8%, Strategy 9.7%, Arcade 9.6%, Aliens 9%
"SYNCHRONIZERS: UNDEAD MARINES" blends high-quality Three-Lane Tower Defense with Reverse Tower Defense gameplay. Command your units in a thrilling narrative reminiscent of a StarCraft and Plants Vs. Zombies fusion! Your choices will forge the path to victory—or defeat.
Why similar: Action RTS 24.7% ★, RTS 14.2%, Tower Defense 13.4%, Aliens 11.4%, Real Time Tactics 9.2%
Defend your planet from waves of robot invaders! Build powerful turrets, upgrade your defenses, and command robot units to fight drones, tanks, and massive bosses. Then send your own forces to attack the enemy planet in this action-packed sci-fi tower defense game.
Why similar: Tower Defense 20.7%, RTS 19.7%, Action RTS 18% ★, Aliens 12.7%, Strategy 8.4%
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.
Why similar: Tower Defense 23.2%, Action RTS 23% ★, RTS 14.9%, Sci-fi 8.5%, Strategy 8.1%
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 27.6% ★, RTS 19.7%, Tower Defense 18%, Isometric 12.1%, Real Time Tactics 10%
Massive scale 4X-RTS set in space. Control hundreds of planets, manipulate galactic politics, research numerous advanced technologies, and command thousands of units and hundreds of planets in your quest for galactic dominance.
Why similar: 4X 44.6% ★, RTS 21.8%, Space 13%, Strategy 9.9%, Sci-fi 8.9%
A multiplayer space RTS blending in depth mechanics with fast paced skirmish matches. control and manage an empire together with your team in large-scale online battles
Why similar: 4X 24.5% ★, Action RTS 19.8% ★, RTS 15.2%, Space Sim 12.1% ★, Real Time Tactics 7.4%
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 25% ★, RTS 18.6%, Tower Defense 15.9%, Aliens 13.4%, Real Time Tactics 9.2%
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: Action RTS 28% ★, Tower Defense 20.3%, Space Sim 17.7% ★, Strategy 10.5%, Action 6.2%
An indie space-sim and strategy game featuring ship and fleet combat mixed with RTS elements. Complete contracts and Claim sectors for your faction in the near-future, where resource exploiting corporations are in a state of constant conflict over territory control.
Why similar: Action RTS 21.2% ★, Space Sim 18% ★, RTS 14.8%, Real Time Tactics 10.8%, Space 9.3%
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 22.8% ★, RTS 21.8%, Tower Defense 20.8%, Real Time Tactics 11.4%, Strategy 10.6%
As a space bear, human or any other race, venture forth into the galaxy, create custom ships, conquer new worlds, build new colonies and defend your very existence against those who would take what is yours.
Why similar: 4X 50.7% ★, RTS 17.1%, Space 12.4%, Strategy 10.7%, Sci-fi 6.8%
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 32.6% ★, RTS 21%, Tower Defense 19.5%, Sci-fi 6.9%, Strategy 6.7%
It’s a defense game where you create your own strategy, grow your units, and defend against enemies.
Why similar: Action RTS 26.4% ★, RTS 19.7%, Tower Defense 18.7%, Aliens 10.1%, Real Time Tactics 9.9%
Command Captain Hope's ship in this strategic 2D space game. Build structures, deploy fleets, and manage resources to defend the Citadel against waves of enemies. Combine direct ship combat, tower defense, and base building as you face epic boss battles.
Why similar: Action RTS 27.2% ★, RTS 21.3%, Tower Defense 17.8%, Aliens 10.4%, Strategy 8.9%
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 29.3% ★, Tower Defense 19.3%, RTS 15.7%, Aliens 10.3%, Sci-fi 5.7%
Star Trek: Prelude is a space-based game that builds defense towers on earth to defend against alien invaders called Black Ember.
Why similar: RTS 21.1%, Tower Defense 18.3%, Space Sim 16.7% ★, Aliens 11.3%, Real Time Tactics 10.6%
Build your defense base to repel alien invaders. Atahion is a strategy and tactical defense game in which you have to extract resources, build defense towers and use bonuses to complete the mission.
Why similar: Tower Defense 25.7%, RTS 25.4%, Action RTS 13% ★, Aliens 10.2%, Sci-fi 7.8%
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 24.8% ★, RTS 20.8%, Tower Defense 17.8%, Real Time Tactics 12.5%, Tactical 4.9%
Assume command of a battle fleet and deploy immediately to the Dust Zone, commander. Our main food supply station has gone dark and the United Earth Nations (UEN) needs to know why in this 4X RTS space sim. Manage your ships, control space stations, and watch your back.
Why similar: 4X 32.6% ★, Space Sim 14.1% ★, Real Time Tactics 10.8%, Space 9.4%, Sci-fi 7.4%
Sci-fi military action-rts. Play as a space soldier, abandoned by the command on an alien planet. Find allies, gather resources, train new troops, and escape from Sector Yama. Casual "single-stick shooter" controls, fun tactical combat, rewarding exploration, and rich storytelling.
Why similar: Action RTS 32.9% ★, RTS 18.8%, Isometric 14.4%, Aliens 9.4%, Sci-fi 8.2%
Is a dynamic tower defense game. You must react and counterattack the enemies on the battlefield all the time. Fight off alien swarm attacks with gigantic machine guns, shotguns, gauss rifles and even a giant laser created using alien technology.
Why similar: RTS 21.8%, Tower Defense 20.9%, Isometric 16.8%, Real Time Tactics 10.5%, Tactical 7.4%
Get ready to protect the entire solar system from an unprecedented threat - the D'Ahari, a race of insect-like aliens. Control an entire fleet of spaceships, trade with other races of an Alliance, and develop your own space station.
Why similar: Action RTS 26.6% ★, RTS 19.5%, Aliens 14.7%, Real Time Tactics 10.7%, Space 9.5%
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 25.3%, RTS 25%, Action RTS 23.6% ★, Strategy 10.1%, Real Time Tactics 7.8%
Fast-paced space RTS with 10-25 minute matches. Command fleets, conquer systems, or research the Singularity. Simple controls, strategic depth, but no 3-hour commitments required.
Why similar: Action RTS 25.8% ★, RTS 24.1%, Space 10.3%, Real Time Tactics 8.7%, Strategy 6.5%
Take command in the ultimate starship simulator: Star Command Galaxies. Become a Captain, recruit your crew, customize and upgrade your starship, battle alien vessels, teleport to away missions and repel boarding invaders in this real-time strategy simulation adventure from indie studio Warballoon.
Why similar: RTS 22.1%, Isometric 17%, Space Sim 16.3% ★, Real Time Tactics 10.5%, Sci-fi 7.4%
Take command of a vast interstellar empire and safeguard your species from total extinction in a procedurally generated 3D galaxy (with the option to flatten it) from 1 System to 10,000+! Prove your species' ingenuity through a deep and intricate combat system where anything (from individual components on ships to the stars themselves)...
Why similar: 4X 46.5% ★, RTS 18.2%, Space 13.6%, Strategy 13%, Sci-fi 5.9%
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 27.7% ★, RTS 19.9%, Tower Defense 18.5%, Real Time Tactics 10.4%, Strategy 6.7%
Five Nations is a real-time sci-fi strategy game for PC platform. Encompassing tactical combat in space in real-time mixed with micromanagement of economy, construction, and production featuring different kind of single player modes.
Why similar: Action RTS 28.4% ★, RTS 24.4%, Aliens 11.5%, Isometric 11.2%, Strategy 8.1%
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 33.2% ★, RTS 19.6%, Real Time Tactics 12.2%, Difficult 8.2%, Strategy 6.1%
Explore a galaxy of 300 systems as you control your fleet in a top-down 3D style, navigating through Star-lanes, Warp gates, and Black holes. Customize and upgrade your fleet, complete missions, trade, hire your crew, wage war and determine the fate of the galaxy in this grand sim saga.
Why similar: Action RTS 30.2% ★, Space Sim 22.8% ★, RTS 15.1%, Sci-fi 9%, Space 7.7%
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 22.4% ★, RTS 19.6%, Tower Defense 16.7%, Real Time Tactics 8.4%, Space 7.9%
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 28.8% ★, RTS 20.9%, Tower Defense 18.2%, Aliens 13.3%, Real Time Tactics 10.7%
A sci-fi Tower Defense game. Strategize to destroy waves of rogue robots and assist the powerful turrets with player controlled drone. Build and collect resources and help evacuate your crew from the alien planet.
Why similar: Action RTS 28.4% ★, RTS 21.1%, Real Time Tactics 11.4%, Arcade 8.8%, Strategy 7.2%
"Haunted Dorm" is a 2D tower defense game. In the game, players need to evade the pursuit of dream hunters, find a suitable dormitory to hide in, and develop the economy to build forts to resist the dream hunters.
Why similar: 4X 38.7% ★, RTS 21.5%, Tower Defense 18.5%, Real Time Tactics 10.3%, Strategy 7.4%
A quick-to-learn but challenging real-time strategy game where you spawn an army of space-bugs that control themselves.
Why similar: RTS 20.5%, Action RTS 20.3% ★, Aliens 16.7%, Real Time Tactics 9.1%, Difficult 7.5%
An RTS classic reborn with a twist. Time is of the essence, Commander! Capture the flags, conquer the territories, and eliminate the enemy fort. And finally, nuke them all! This old-school sci-fi Indie real time strategy game, crafted by devoted team, revives the genre's enduring allure.
Why similar: Action RTS 25.2% ★, RTS 18.7%, Tower Defense 13.4%, Isometric 11.4%, Real Time Tactics 9.1%
In this game, you are a leader, leading a force of army to fight other forces in the deep spaces. You will plunder their resources, build your homelands, explore and expand, managing your army both strategically and tactically. This will be a saga written with blood and fire.
Why similar: 4X 35.8% ★, RTS 23.5%, Real Time Tactics 10.6%, Strategy 10.6%, Aliens 10.3%
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 29.7% ★, RTS 21.2%, Tower Defense 18.6%, Real Time Tactics 11.1%, Strategy 6.4%
A sci-fi roomscale VR Tower Defense game. Strategize to destroy waves of rogue robots and assist the powerful turrets with a handheld drone. Build and collect resources and help evacuate your crew from the alien planet.
Why similar: Action RTS 23.4% ★, RTS 18.9%, Tower Defense 17.5%, Real Time Tactics 9%, Space 8.1%
Structura is a rather unique sci-fi real-time strategy set in space. Its a hybrid of rts and fps, with emphasis on combat and survival. Build your economy for war, modify the unit by adding components, explore, expand, and survive the savage waves of enemy attacks.
Why similar: 4X 33.7% ★, RTS 19.7%, Space Sim 15.8% ★, Real Time Tactics 9.2%, Strategy 6.1%
Take command of the war machine of an empire in this 4x RTS hybrid. Fight battles with your flagship fleet in fully 3D real-time space combat. Recruit, train and dispatch commanders. Give them orders, directives and equip their fleets. Manage your empire’s supply logistics and fleet operations.
Why similar: 4X 35.6% ★, RTS 21.3%, Space 10.5%, Sci-fi 7.4%, Strategy 6.7%
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 25.5% ★, RTS 19%, Tower Defense 16.6%, Real Time Tactics 10.2%, Space 7.8%
Guide your civilization to epic victory in Ephemeris, the upcoming turn-based space war strategy game. Spread your civilization across the galaxy, unlock new tech, design warships and crush your enemies in cinematic, fully 3D real-time space battles!
Why similar: 4X 33% ★, RTS 18.5%, Space Sim 10.9% ★, Action RTS 8.6% ★, Space 5.8%
Battle for galactic dominance in this real-time 4X strategy game with unrivaled scale! You’ll explore, expand, exploit, and exterminate through military force, diplomacy, trade, culture, influence, and other underhanded tactics.
Why similar: 4X 36.4% ★, RTS 21.1%, Space 13.3%, Strategy 7.5%, Sci-fi 6.9%
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 36% ★, RTS 23.4%, Tower Defense 21.6%, Strategy 7.4%, 3D 4.6%
Galaxy Trek is a fun, simple and addictive indie game that will test your reflexes, strategy and skill. Each game you play is unique!
Why similar: Action RTS 48.4% ★, RTS 22.2%, Space 13.8%, Strategy 9%, Action 5.1%
Experience cinematic space warfare in SALVO, an action packed real-time tactical combat simulator. Command your flagship and engage in intense battles in a war-torn solar system. Play a story-driven campaign, or forge your own destiny across the dangerous frontiers.
Why similar: Action RTS 33.1% ★, RTS 14%, Real Time Tactics 12%, Space Sim 10.2% ★, Strategy 10.1%
Real-time strategy game. Players move freely to find a suitable place to settle down and develop. They build various buildings to explore, attack, and defend themselves, so as to resist AI attacks. They also find and defeat other targets on the map to become the only surviving human player.
Why similar: 4X 39% ★, RTS 21.7%, Tower Defense 18.6%, Real Time Tactics 10.4%, Strategy 7.4%
Protect the base from an alien invasion. Place cannons and destroy the invaders. Upgrade cannons to resist the enemies.
Why similar: Action RTS 26.1% ★, RTS 20.6%, Tower Defense 19%, Real Time Tactics 10.5%, Aliens 10.4%
Drop into the gripping journey of Aliens: Dark Descent, a squad-based, single-player action game in the iconic Alien franchise. Lead your soldiers in real-time to stop a new and terrifying kind of Xenomorph outbreak on Planet Lethe.
Why similar: RTS 24.1%, Aliens 14.2%, Real Time Tactics 12.5%, Tactical 10%, Strategy 9.8%
A tower defense game where you must defend your home planet from endless waves of Gribblins!
Why similar: Action RTS 32.4% ★, RTS 22.7%, Tower Defense 20.6%, Stylized 6.9%, Strategy 6.8%
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 27.8%, RTS 27.7%, Strategy 13.7%, Aliens 11.7%, Sci-fi 7.3%
Defend galaxy against Alien invasion in the RTS offline game with roguelike fun
Why similar: Action RTS 30.4% ★, RTS 17%, Tower Defense 16.1%, Real Time Tactics 10.6%, Aliens 10.1%
Fable Forts! TD: defend your fairy kingdom from stupid human invaders!
Why similar: Action RTS 27.3% ★, RTS 24.5%, Tower Defense 24.3%, Strategy 9.2%, Real Time Tactics 6.8%