Games Like Sphere Invasion

A planetary tower defense where enemies attack across land, air, and space. Build layered defenses, manage resources, and survive an escalating alien invasion.

Why similar: Tower Defense 29.1%, Real Time Tactics 19.2%, Military 12.5%, Strategy 8.3%, Tactical 6.8%

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 25.6%, Real Time Tactics 23.3%, Strategy 12.6%, Military 12.1%, Space 7.6%

M.A.C.E. Tower Defense 2, a classic tower defense game with unique towers and enemies

Why similar: Tower Defense 28.3%, Real Time Tactics 25.8%, Strategy 14.4%, Military 13%, Tactical 7.3%

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 30.5%, Real Time Tactics 27.8%, Strategy 15.9%, Tactical 11.2%, Resource Management 8.3%

Are you prepared for a thrilling toy army tower defense adventure? Welcome to the Toy Shire! Battle diverse foes in various locations, defend your family, and repel foes from your area. Save the world by strengthening your defense with toy towers! FULL GAME AVAILABLE NOW!

Why similar: Tower Defense 27.2%, Real Time Tactics 17.4%, Military 12.3%, War 9.2%, Strategy 7.7%

A unique 3D tower defense game set on randomly generated planets! Place towers to defend against 360-degree attacks, protect mining outposts, and survive intense meteor waves. Earn resources, and face endless replayability with dynamic challenges every playthrough!

Why similar: Tower Defense 23.7%, Real Time Tactics 19.8%, Space 12.2%, War 8.7%, Resource Management 8.2%

A grand and intense tower defense science fiction game, where you only need to purchase once to enjoy all the content of the game.

Why similar: Tower Defense 22%, Real Time Tactics 21%, Military 12.1%, Strategy 8%, War 7.6%

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: Real Time Tactics 29.9%, Tower Defense 26.8%, Strategy 10.9%, Space 7.5%, Tactical 5.8%

Eternal Siege is an evolutionary tower defense based around min-max resource management, efficient use of spells, and (hopefully) building some towers. Start in the Ancient Greek era and defend your way through the human eras (Roman, medieval, modern, etc). Can you survive the human extinction era?

Why similar: Tower Defense 28.8%, Real Time Tactics 17.6%, Tactical 11.1%, Building 10.7%, Resource Management 9.7%

Scrap Wars: TD is a Post-Apocalyptic Tower Defence game where strategy meets chaos! Build and Upgrade powerful Towers, Customize their Strengths, and Defend your Base against relentless waves of Enemy Vehicles across three unique Scenarios or Battle for as long as you can in Endless Mode!

Why similar: Tower Defense 25.8%, Real Time Tactics 21.5%, War 11.6%, Building 8.9%, Strategy 8.5%

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 28.8%, Real Time Tactics 19.8%, Building 11.3%, Strategy 8.3%, Sci-fi 8%

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 32.9%, Tower Defense 23.6%, Strategy 13.3%, War 11.2%, Tactical 8.1%

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 31.6%, Real Time Tactics 16.7%, Strategy 10.6%, Sci-fi 9.1%, War 7.6%

The unstoppable fluid enemy has returned and destroyed every world in its path! Defend against Creeper as it floods across the 3D terrain in this real time strategy game where the enemy is a fluid.

Why similar: Tower Defense 21.3%, Real Time Tactics 20%, War 10.9%, Space 10.3%, Building 8.8%

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 34.5%, Real Time Tactics 14.8%, Strategy 13.5%, Sci-fi 8.9%, 3D 6.1%

A strategic tower-defense where you control powerfull drones. Unlock new tower and use specific technologies to defend your base on Thukothea!

Why similar: Tower Defense 41.7%, Real Time Tactics 23.4%, Strategy 11.8%, War 6.9%, Tactical 6.5%

A Roguelike Tower Defense in space with missions to conquer. Can you hold against the spreading alien bosses? Build and upgrade towers against the corruption. Choose your technologies and warpspeed your way to victory.

Why similar: Tower Defense 26.9%, Real Time Tactics 25.8%, Building 9.8%, Strategy 9.6%, Space 9%

A strategic space tower-defense game. Enemies detect, warn, and try to bypass defenses, forcing you to adapt. Combine diverse towers and face unique maps for varied battles. With tense sci-fi atmosphere, it delivers a fresh experience beyond traditional tower defense.

Why similar: Tower Defense 25.6%, Real Time Tactics 24.2%, War 11.5%, Space 10.9%, Strategy 8.9%

Assume control of an evil intergalactic megacorporation in this sci-fi tower defense. Build a mining infrastructure on alien moons and exoplanets, exploit their precious resources, and defend your operation against defiant natives.

Why similar: Tower Defense 22.9%, Real Time Tactics 11.4%, War 10%, Resource Management 9.1%, Military 8.9%

City Defense is a tower defense game. The enemies decided to blitzkrieg and a small town turned out to be the line of attack. Build automatic turrets to destroy enemy equipment, pump them, and earn money for the victory over each enemy, because only with a sly strategy and cold mind you can win this battle.

Why similar: Tower Defense 30.2%, Real Time Tactics 21.2%, Military 13%, Strategy 12.5%, War 10.1%

The hungry Gooper swarm threatens intergalactic peace. Stop them! Build towers around planets and take control over their orbits. Spin them with all you’ve attached! Collect new towers, powers and upgrades to beat the onslaught of goopers and save the galaxy in this colorful Tower Defense Roguelite!

Why similar: Tower Defense 26.7%, Real Time Tactics 16.9%, Tactical 11.8%, Space 9.9%, Strategy 9.2%

Prepare to defend your land against endless waves of ants and other vicious invaders! Build and upgrade towers, unleash powerful abilities, and master your strategy through stages that start easy but grow brutally challenging.

Why similar: Tower Defense 35.6%, Real Time Tactics 23.8%, War 15.3%, Tactical 14.4%, Strategy 9.8%

Defend humanity in IRON GUARD: Salvation. Build and upgrade turrets, support your heroes, and personally join the fight with your drone’s firepower against relentless machines.

Why similar: Real Time Tactics 23.9%, Tower Defense 23.4%, Military 11.6%, Space 7.6%, RTS 6.8%

A fast paced modern warfare tower defense game where you build, upgrade, and customize defenses to repel a relentless enemy invasion. Unlock powerful skills and abilities, craft advanced ammunition, and gather resources directly on the battlefield to outmaneuver and outlast the enemy.

Why similar: Tower Defense 32.3%, Military 21.8%, War 17.6%, Strategy 10.8%, 3D 6.6%

Build your towers, plan your efforts, watch out for changing paths and strike back against the alien invaders in this challenging tower defense game!

Why similar: Tower Defense 27.3%, Real Time Tactics 24%, War 11.6%, Tactical 9.7%, Strategy 7.9%

Solder diodes, capacitors and other electronic components to defend your motherboard from waves of evil viruses!

Why similar: Tower Defense 42.1%, Real Time Tactics 19.4%, Strategy 17.2%, Tactical 13%, 3D 6.5%

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: Real Time Tactics 25.7%, Tower Defense 25.3%, War 14.3%, Space 12%, Strategy 7.1%

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 31.9%, Strategy 14.9%, Real Time Tactics 13.2%, Space 12%, Sci-fi 8.6%

Co-op and Single player Tower Defense genre.

Why similar: Tower Defense 40.2%, Real Time Tactics 36.3%, Strategy 13.6%, Building 7.2%, Military 1.2%

Defend your kingdom against legendary monsters. Place turrets strategically to block their path. Upgrade your defenses to fend off enemy hordes. Become the legendary guardian of the earth alone or in co-op!

Why similar: Tower Defense 26.8%, Real Time Tactics 24.8%, Strategy 9.8%, Building 9.4%, Tactical 8.9%

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 24.8%, Real Time Tactics 15%, Resource Management 9.5%, Strategy 8.5%, War 8.3%

1931-1945,the chinese Tunnel Warfare. Customizable map WWII RTS simulation with player-designed tunnels, dynamic difficulty, and enemy AI. Base strategies and tech choices shape unique combat styles. Experience authentic WWII tactics, not fantasy.

Why similar: Tower Defense 26.8%, Real Time Tactics 24.5%, Strategy 13.9%, War 8.7%, RTS 8.5%

A real time strategy, tower defense game where you can evolve your turrets and give them special abilities.

Why similar: Tower Defense 31.2%, Real Time Tactics 26.3%, Strategy 15.7%, War 9.5%, RTS 8.6%

Are you prepared for a thrilling toy army tower defense adventure? Welcome to the Toy Shire! Battle diverse foes in various locations, defend your family, and repel foes from your area. Save the world by strengthening your defense with toy towers!

Why similar: Tower Defense 21%, Real Time Tactics 19%, Military 13.8%, War 10.9%, Tactical 8.6%

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 36.8%, Real Time Tactics 25.8%, Sci-fi 10.7%, Military 9.8%, Strategy 9.5%

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 31.8%, Real Time Tactics 25.1%, Space 14.6%, Strategy 12.2%, Tactical 4.3%

Star Ash Fleet is a groundbreaking real-time strategy game that transcends tradition. Set against a holographic 2D battlefield simulating interstellar warfare, players assume the role of a newly appointed Federal Fleet Commander, crafting their own war epic across the vast galaxy.

Why similar: Real Time Tactics 27%, War 15%, Space 13.9%, Military 10.7%, Sci-fi 8.8%

With a style inspired by the RTS games from early 2000's, a new tower defense combines in a unique way action, tactics, replay value and fun. They are here! Choose your targets, upgrade, replay, discover your enemies and your tactical skills.

Why similar: Tower Defense 29.1%, Real Time Tactics 27%, Military 15.7%, Strategy 8.3%, Tactical 7.4%

A real-time roguelite tower defense game about extracting the riches of the forest. Lure creatures to your emitter and mow them down with towers and spells. Build freely, shape your maze, and choose spells that transform how you play.

Why similar: Tower Defense 26.4%, Real Time Tactics 25.3%, Strategy 9.6%, Building 9.4%, RTS 8%

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 28.5%, Real Time Tactics 21.9%, Strategy 9.4%, Space 8.9%, Tactical 8.8%

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 40.2%, Real Time Tactics 17.3%, Strategy 16.2%, Space 10.4%, Sci-fi 7.5%

Zero Zone 2020 is a classic Tower defense game where you will need to defend a home base from swarms of enemies

Why similar: Tower Defense 52.5%, Real Time Tactics 27.1%, Strategy 16.3%, Action 4.1%

Build and upgrade towers, defend your fortress from the growing onslaught. With each wave, the challenges become more difficult, but a smart strategy and the right decisions will help you endure and prevail!

Why similar: Tower Defense 35.6%, Real Time Tactics 20.6%, Strategy 13.6%, Building 13.3%, Tactical 12.2%

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: Tower Defense 29.6%, Real Time Tactics 25.4%, Strategy 14.4%, RTS 8.2%, Space 8%

Command your forces to victory in this intense tower defense experience! Strategically deploy your defenses to fortify your position and funnel the enemies through intricate mazes. Carefully allocate your resources and adapt your tactics to counter waves of relentless enemy drones!

Why similar: Tower Defense 35.3%, Strategy 14.1%, Tactical 13.8%, Military 12.8%, Resource Management 11.9%

Taur is an action-strategy sci-fi game. Control the Prime Cannon and unlock all of its powerful weapons and abilities. Build turrets, droids, aircraft and more as you fight to protect the homeworld of the Tauron droids against a relentless invasion. Will your Taur stand against the Imperion warmachine?

Why similar: Tower Defense 41.1%, Real Time Tactics 13.9%, Strategy 11.8%, War 6.9%, Sci-fi 6.8%

A classic Tower Defense game with minor offensive tactics.

Why similar: Tower Defense 32.3%, Real Time Tactics 29.6%, Strategy 16.1%, War 10%, Resource Management 6%

ASSEMBLE AND COMMAND YOUR SPACE FLEET TO VICTORY

Why similar: Real Time Tactics 34%, Space 16.4%, Strategy 11.8%, Tower Defense 11.3%, War 10.1%

SpaceFront is a military real-time strategy game. Control Corgis, wage battles, build your army and defend the galaxy from soviet invasion! No game will be the same thanks to procedurally generated campaigns! Join the effort, join the SpaceFront!

Why similar: Real Time Tactics 20.3%, Military 12.6%, War 11%, Space 10.7%, Tactical 9.3%

A single-player sci-fi strategy game set in a future where humankind has made the first leap to a distant star system

Why similar: Tower Defense 28%, Real Time Tactics 25.6%, Strategy 14.7%, War 8.9%, RTS 8.9%

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: Tower Defense 27.1%, Real Time Tactics 19.6%, Military 15.4%, Strategy 8%, Tactical 6.9%

6 June 1944, the greatest military invasion in human history begins with Allied soldiers landing in Normandy trying to bring an end to the war. You have been given the task of stopping the Allied invasion and defending the German territories in France. Will you be worthy and defend the Fatherland?

Why similar: Tower Defense 23.2%, Real Time Tactics 17.1%, Military 13.9%, War 12.6%, Tactical 9.4%

Adventure TD brings you back the good old classic kind of tower defense, with a bunch of different upgradable towers, game modes, maps and difficulties. All needed hotkeys are configurable, so there are no excuses for failures. Prove that you can master the game and try to improve your high score.

Why similar: Tower Defense 37.7%, Real Time Tactics 27.7%, Strategy 15.2%, Tactical 14.6%, 3D 4.1%

Frontier Fortress is medieval-themed tower defense game. You are the leader of your nation. In the harsh medieval age you have to defend your land against foreign invaders. Fortify your frontier with defense structures and let none of them pass through your fortress.

Why similar: Tower Defense 25.4%, Real Time Tactics 19.9%, Military 14%, War 11.4%, Resource Management 8.1%

3D-realtime tower defense game with (rainbow-) UNICORNS!

Why similar: Tower Defense 31%, Real Time Tactics 27.1%, Tactical 11.2%, Strategy 10.3%, RTS 8.6%

Artisan TD is a puzzle-oriented Tower Defense game where you must survive by building mazes.

Why similar: Tower Defense 35.4%, Real Time Tactics 23.8%, Tactical 12.8%, Building 12.3%, Strategy 10.8%

Deploy unique and powerful unmanned military turrets and stop the advancing enemy convoys!

Why similar: Tower Defense 29.5%, Military 20%, Real Time Tactics 16.8%, War 15.6%, Strategy 10.4%

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: Tower Defense 29.9%, Real Time Tactics 25.6%, Strategy 14.6%, War 8.9%, Building 7.9%

In Vermin Control, you will enter a thrilling sci-fi tower defense world filled with strategic combat and high tension. Operate a versatile unit capable of both melee combat and construction, deploy and manage 9 unique devices, and protect key facilities from relentless vermin assaults.

Why similar: Tower Defense 29.4%, Real Time Tactics 27.2%, Resource Management 10.5%, Strategy 10%, Tactical 9.4%

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: Tower Defense 23.6%, Real Time Tactics 19.1%, Military 11.1%, Space 11%, War 8.5%