Top similar games like Planetary Defense Force:

Get Off My Space! is a tower defense game where you rely on skillful tower placement and resource management to beat upcoming dangers of the galaxy. Combining strategy and micro managing fire groups you will overcome the hardest level objectives.

Citadelic is a base building and defending strategy game with roguelite elements. Survive against waves of constantly evolving enemies while expanding your base and managing resources.

Tanks Etc. is a modern reimagining of co-op overhead arcade classics; it offers classic gameplay while adding in depths of strategy to keep players reinventing strategies for waging war with their friends.

In this Procedural City-Building and Survival game, you must manage your resources, expand your village, assemble an army and destroy the source of evil, which changed the entire eco system of a land that was once prosperous and peaceful.

Acid Planet is a Tower-Defense RTS Roguelite. Build your base, command your drones and battle to survive against hordes of monsters and gigantic Kaiju.

Co-op twin-stick base building survival game.

Armoured Onslaught is a fast paced Top-Down Shooter and Tower Defence hybrid. You will need to make use of both strategy and skill as you fight your way through near endless hordes of deadly foes.

Sky Fleet is an online co-op action RTS. Work together to build a base and defend it from attacking drones. Mine resources to upgrade your ship and destroy the drone's base.

Hexguardian is a strategic, roguelite, tower defense game with polyomino gameplay! Build and upgrade towers, recruit armies, learn spells, construct wonders and place hexagonal tiles to create a path to enhance your defenses. With plenty of abilities and talents to unlock!

Let's go on an adventure on our little island. We capture enemy islands and increase our island. We place different types of troops on the island and fight with a stronger enemy.

Kaiju Commander is a strategy game where your main task is to dominate the whole world. To achieve this goal, you will be managing an evil corporation that breeds powerful monsters known as Kaiju. Develop your underwater base, gather resources, and dominate the world!

Smash Cup is a genre-blending top-down shooter where players craft their own base, combining MOBA, tower defense and deck-building elements for a unique battle experience.

Journey to Moonray is a hypnotic, top-down twin-stick shooter featuring silky smooth visual FX and intense combat. Journey to Moonray offers beautiful shaders built on fluid physics to create a unique and surreal visual experience combined with classic, top-down twinstick shmup action

Defend entire planets against hostile invaders in this full 3D tower defense game. Manage resources and space while constructing weapons, defenses, and structures to withstand the destructive onslaught across multiple planets.

A couch co-op tower defense game, in which the towers you build can hurt you and your friends just as much as they can hurt your enemies. Build towers, aim them towards your foes and collect the crystals that drop in order to build more turrets and survive the endless hordes of enemies!

Face cosmic threats in "XALADIA", the ultimate twin-stick shooter! Conquer the battlefield with stunning 3D graphics and evolving combat. Use missiles, lasers, barriers to decimate space pirates. Upgrade weapons, unleash a relentless barrage. Experience the real space warfare!

Stop an endless hoard of crystal-type enemies, with different attributes, from reaching the portal to earth! You can build your own labyrinths, unlock new turrets, upgrade them, unlock abilities, and also gather permanent bonuses.

A minimalist game about building and defending your little kingdom.

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?

Lead an army of slimes on the offensive against the dusters that have invaded your planet and restore your home to its former glory in this Tower Offense game!

Geometry Defense: Infinite is a classic infinite tower defense game where you must build a maze to slow enemies and build towers to destroy them. An action-packed and engaging game requiring focus to take on challenges and test your skill.

Cheftastic!: Buffet Blast is a new exciting top-down arcade shooter! Take back the Isle of Verdura from swarms of mutant vegetables and climb your way to the top of the leaderboard!

ValeGuard is an RTS, Town-Management hybrid game that combines Turn-Based City-Building with Real-Time Combat. Each day you construct your defenses, train troops, and prepare for attack. When enemies come in the night, you defend with towers, troops, and heroes with powerful abilities.

Robots have invaded your planet, and they don't even see you as a threat. Beat the odds and SAVE THE GALAXY in this twin-stick cover shooter with lock-on targeting!

Mow down the alien hordes, scout for resources and survive. Dreadnought is a mix of Action Tower Defense Survival and Shoot 'Em Up Bullet Hell where you control the ships turrets & defend against waves of enemies. Choose your weapons, upgrade your ship & brace yourself, the horde is coming.

A 3D FPS/TPS Tower Defence game in a sci-fi world, defend your base from corrupted robots and unlock better turrets

SNOT is a top-down shooter minigame that's all about keeping cool and reloading. Stuck on a floor tile, brace your (booger) self and face endless hordes of micro organisms - fighting to survive as long as you can!

RZR is a 3rd person singleplayer/multiplayer shooter. Collect unique items in the campaign and maximize your efficiency against hordes of zombies. Compete with other players in deathmatch and reach the top of the leaderboard. Play survival mode with your team and prove that your team is the best.

The creeper is flowing through canyons to your base while you rush to build a space station in 3D by sending packets to your building foundations and pushing the fluid back with your weapons, eventually capturing the sources of the enemy or being drowned by it.

They Came From Below is a cute Tower Defense in Lowpoly 3D graphics. Here you have to build an economy and various defense towers to resist hordes of skeletons.

#Funtime is an explosive twin-stick shooter where shooting isn't your only weapon. Swap your ship's color to destroy enemies, avoid damage, and ultimately control the battlefield.

About：The solar system was invaded by aliens of unknown origin. The earth has fallen. As the commander of the surviving space fleet, return to the solar system from outer space and save the earth.

Small game in Tower Defence genre with elements of shooter. Kill Replicators all by yourself or make perfect defence with different turrets.