Top similar games like Planetary Defense:

PewPew! - move, shoot and upgrade!

Gratuitous Shooty Game is a hobby space shooter made by the developer of Gratuitous Space Battles, reusing the art from that game :D.

Fight against an ever-evolving threat in this skill-based twinstick shooter 14 years in the making.

3D Sci-Fi arcade Shoot'em up game. Destroy asteroids and aliens. Shoot them all!3D arena shooter with multiple worlds. Spaceship simulator and shmup arcade style game.

Meteorite MinerIn this thrilling 2D space mining game, you'll take on the role of a daring asteroid miner. Armed with your trusty mining laser, you'll blast through space rocks to extract valuable minerals and resources.

Cube Space is a minimalist arcade Shoot `em Up game set in space. You control a spaceship and your task is to score as many points as possible by destroying enemies and obstacles in your path.

No nonsense, action packed, 2.5D, Asteroids inspired shooter. Scream around speeding rocks narrowly avoiding an untimely death as you obliterate rocks whilst harvesting their valuable resources. See how far you and your friends can get. Best played with mates but also pretty fun on your own.

A 2D, top-down shoot'em up with simulation elements, deeply reminiscent of those vector games from the 80s. Blast your way trough space, enemies and mystery. Upgrade your drones. Endure your mothership's AI cynical attitude and survive the most realistic shoot'em up ever!

Hyper Frenzy is a free arena-styled singleplayer 2D space shooter using top-down perspective. Fight in different modes against bots, collect various items and use one of the plenty weapons to defeat your opponents. Create your own maps and gametypes.

The best shooting game with various perspectives

Neon Arena is a space arcade scoring arena game.

Aero Striker is a highly stylized action-packed flight combat simulator game that is intentionally designed to be easy to make it more enjoyable and less nerve-racking. The aim is to have fun making aliens explode while experiencing the sensation of flying. Let none of the evil aliens escape!

Lead a powerful space battleship and bring victory to humanity in the midst of an endless war.

The spaceship pulls into a kaleidoscope of bizarre and dangerous worlds full of aggressive creatures. Will it be possible to break through the waves of enemies, and return back to the familiar space?

Alien Wall is a powerful genre mix between a brick breaker and ‘shoot em up’. Modern retro Arcade fun at its best!

Repel extraterrestrial entities!

Destroy hordes of ever-improving enemies and their Mothership. Alcyon Infinity is a fast shooter/bullet hell with dynamic movement and risk management with crazy electro-neo-classical music. Up to 4 Co-Op players with Controllers.

Super Space Club is a lo-fi arcade space shooter to chill to. Defend a vibrant galaxy as a club of misfit heroes and battle endless waves of spacecrafts to the tune of atmospheric beats. Outlast your enemies and vibe to the rhythm of the stars.

Hotloop is a dynamic mix of old school arcade and simulation. In this game you will meet a realistic system of spacecraft behavior and precise orbital mechanics. You have to curb the force of gravity and learn how to use it to your advantage in order to repel numerous enemies

Dynamic 2D retro, pixel-art, shooter. Fly fast, shoot accurately. Fight back the Rivanirs invasion. You are the Captain Jackson, you are their Doom.

Crossfire II is an Retro / Arcade / Top-Down Shooter, originally released in 2002 for the AMIGA. The main part of the game is a classic, fast paced, single player story campaign. Fly different space ships and fight, to save the universe as you know it. Also you get a survival and a local PvP mode.

Void Prison is a fast paced, endless arcade twin stick shooter that puts you inside of an ever shrinking ring. Survive by fighting emerging enemies around you and don't get consumed by the void. Complete achievements to unlock new skins and powerups and get on top of the leaderboards!

An acid trip back to classic vector arcade action games with the unique bullet magnet mechanic. Dodge ruthless attacks, bend your projectile trajectory, destroy waves of enemies with the massive explosion chains. Die a lot! Then try again and get yourself to top of the leaderboards

Inspired by classic Japanese shooting games, SHINORUBI is a pure dose of adrenaline and frenetic arcade action with all the best aspects of Japanese bullet hell games, optimized for modern PC in ultra HD, all in a polished, accessible with many levels of difficulties.

A fun little space shooter inspired by the 1979 classic Asteroids.

Retro-inspired arcade-style shooter. Save humanity from incoming waves of flaming hot meteors, alien ships hell-bent on destroying humanity, and the strangeness of space by shooting, blasting and nuking incoming waves of meteors and enemies.

Destroy friends, strangers, or bots in this online multiplayer arena shooter. Collect powerups, combine weapons, build your defenses and obliterate the opposition. Hundreds of weapon combinations and multiple game modes.

Kill it. Take its gun. Rinse and repeat. WARNING: You will die. A lot. Probably. This 2D Retro shooter is about as hard as it can get, but repetition and good luck will cut though everything like warm cheese. This game grows with the community, and more bosses will challenge you in the future.

This game is about flying in space. You must destroy asteroids from the explosion of an object near the planet Jupiter. You will also encounter other extraterrestrial objects and even UFOs.

Fight for glory and bragging rights as you and another player face off to destroy shield generators and tanks in top-down battle arenas! Will you come out as the better tank?

XenoFeud is an insane top-down twin-stick arcade alien shooter, where you must survive hordes of alien intruders while defending a mysterious object in space.

Customize your Gun Bots to fight through 7 unique worlds with different weather conditions that become more challenging as you progress.

Skyfighter Arcade is the classic top-down shoot-em-up vertical scroller, with a twist. Outmaneuver increasingly difficult enemies and obstacles. Blast your enemies out of the sky with powerful and unique weapons. Upgrade your weapons and ship to make yourself more powerful.

《Geometry Raid》is a rogue-lite space slash shooter game, the game combines classic barrage shooting and sword slash game elements. By driving a two-part ship,you can shoot and swing tail to crush the enemy . The game focuses on hardcore physics simulation and maximizing the melee slash experience.

Hover Ship is an arcade game in which you have to control a floating ship on an obstacle course, collect coins and set new records.

Classic multi-directional (360°) shoot 'em up. Navigate your UFO through hazardous environments with dangerous enemies and beat huge bosses!