Top similar games like Alien Defense:

Throbax TD is the "Tower Defense" game you are looking for: Help Ughlar fight his way through 50 levels, buy over 100 upgrades and get all of the 50+ achievements.

Ancient Greece under siege. Steam engines roar, bronze towers rise, and waves of soldiers and machines march against you.

Xeno Conflict is a real-time strategic survival game based on a future background, where players can control different factions compete and cooperate with each other to fight against unknown biological environments.

Players measure stamina with a never-ending stream of green creatures within the borders of a special military mission.

Be the ultimate CEO and military strategist in this genre fusion of strategy and business management. Create your own company, hire employees, research weapon technology, and take control of units on the battlefield to defend the moon against an alien invasion. Aliens down, profits up!

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.

Slice them, burn them, skewer them, and launch them - no matter how you get it done, orcs must die in this fantasy action-strategy game from Robot Entertainment.

The Caribbean Sea, your sea, has been the home of true freedom for ages. Calico Jack, William Kidd, and many other great pirates had sailed these waters in the past.

Atmospheric unique minimalist tower base defense game. Highly addictive.

WARSHIFT 2 is a unique mix of RTS, Action and RPG gameplay elements. You can build base, manage troops, mechs, battleships, carriers and then come down to keep your enemy at gunpoint in the dynamic battle and customize your main characters.

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!

Warpips is the ultimate quick to learn but amazingly deep tug-of-war strategy game. Deploy the right composition of soldiers, tanks, helicopters and planes in this tight, streamlined strategy-focused war game. Compose the best army, research the right tech; overwhelm your enemy!

In the depths of an ancient forest, your castle the last human stronghold stands as the final bastion against a monstrous horde. Strategize your defense by employing soldiers, traps, towers, and even the monsters themselves.

Shatter genre boundaries in this sci-fi survival Roguelite blending bullet-hell action and base-building RTS. Dodge and unleash screen-clearing firepower against alien hordes, while constructing fortresses and real-time automated defenses to crush your enemies.

A pixelated 2.5D RTS meets tower defense as you battle mutated ants in a short campaign. Build walls, place turrets, and hold the line to reclaim Earth's surface in this tactical fight for survival where placement of everything matters.

This game is a 3d Tower Defense created by a highschooler. It was developed by Unity and was accompanied by a lot of youtube tutorials.

The bastard child of Grand Strategy and Tower Defense, with a black humor infused plot, set in a grim, disillusioned world. Quell the rebellion, tame the Western Marches, disobey your orders and save your brandy. Not strictly in this order.

Fight off hordes of monstrous mutants created from a strange cataclysmic event in the new tower defense game, Prime World: Defenders. Join a group of exile treasure hunters who have ventured into the capital of an ancient empire, vast with mystery and danger.

Tisuland is a fantasy RPG combining daytime exploration and night-time tower defense. Gather resources, recruit companions, and defend the castle against evolving enemy waves. Your daily choices shape the battles and the fate of the land.

MILLIONS OF ALIENS WILL DIE!Radiant Defense is a tower defense game set in a vibrant universe invaded by countless alien hordes.Build your space fortress any way you wish, set up wide variety of weapons and traps and let the invasions begin!

Your chicken has been kidnapped, and that’s all it takes to send a retired astronaut into full galactic mayhem. Space Bross is a hand-drawn 2.5D tower defense & action roguelite where you’ll build bases, fend off alien hordes, and blast your way across planets to bring your feathery friend back.

A flexible, high-performance 2D game creation tool that supports low-code development and advanced scripting.

Loop Defense is a single-player sci-fi tower defense game. Build enemy routes with base walls, assemble a modular defense, manage limited loadouts, energy, and research, face armored, flying, carrier, and wall-breaker units across a star map, or challenge Endless Mode.

Tower defense reimagined! Dead Ground is a procedurally generated tower defense game with rogue-like elements. Each playthrough will offer randomly generated guns, skills and augments. You'll have to travel, collect scrap, water, manage your inventory and upgrade your base to survive!

Defense Grid: The Awakening is a unique spin on tower defense gameplay that will appeal to players of all skill levels. A horde of enemies is invading, and it's up to the player to stop them by strategically building fortification towers around their base.

Protect the base from an alien invasion. Place cannons and destroy the invaders. Upgrade cannons to resist the enemies.

Fight, explore the stars, trade, and lead your fleet across the galaxySpace Commander: War and Trade is an ultimate single player space-sim featuring spectacular graphics, intuitive combat and deep mechanics.

A chaotic co-op tower defense where your cursor is the weapon. Grab enemies and physically YEET! them off the map, into each other, or straight into the dirt. Then back it up with towers, spells, and up to 8 players. Hold the castle solo or split the chaos with friends.

“Alien Marauder” is a real-time strategy game with survival and confrontation theme. In this game, you will be the leader to a treacherous alien planet, build and defend base to survive against the vexan waves. Make the right decision!

Fire Road is a dynamic Tower Defense strategy game with a bird's eye view. Your task is to prevent enemy vehicles from breaking through the key road.

"Siege of Shadows" is an intense tower defense survival game where strategy, skill, and quick thinking are your keys to victory. In a world overrun by relentless waves of enemies, your mission is to build, upgrade, and defend your base at all costs.