Top similar games like Polybius Invaders:
Polybius Invaders $9.99
Take on the Evil General Goo as he sends waves of Retro Space Invaders your way in this Action-Packed Retro Styled Arcade Shoot 'em up.
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Orbital Defense Force$9.99
Orbital Defense Force (O.D.F) is a multiplayer shoot 'em up co-op rogue-like game. play as mercenaries working for the O.D.F., accepting contracts to defend planets from invaders and earn precious scrap that can be used to upgrade their ship to take on more difficult contracts.
Syder Arcade$9.99
Killing zombies never gets old, but sometimes you just need a break. Get back to some serious old-school gaming with Syder Arcade! Syder Arcade is a love letter to Amiga games of the ‘90s, no coins, no upgrade grinding, just your tenacity and a motherload of alien invaders.
Galactoids - Galactic Invaders$9.99
Battle swarms of Galactic Invaders in this action-packed retro-inspired arcade shoot em up. May the Nerd be with you.
Martian Invaders$0.99
A New Retro Classic Space Shooter Arcade Game. Defend Earth from waves of martian invaders and flying saucers in this modern version of a space shooter. Go Back to the 1980’s and Blast these Martians Back into Outer Space!
Super Captain 3D$0.99
Super Captain 3D is a shoot-em-up game where you become a Super Hero ready to fight the Pixel Invaders. It features an art style that combines 3D pre-renders with 2D pixel art. Use your Superpowers to protect the Universe!
Crystal Cosmos$4.99
Crystal Cosmos is a side scrolling color-based space shooter. You need to match your ship's color to your enemies color in order to destroy them.
Spacewing War$6.99
Blast off for a retro shoot’em up experience filled with clever twists and secrets!
Crazy Invader ShootEm Down$2.99
Enjoy fast paced action in this retro inspired arcade ShootEm Up Style game
Neckbeards: Silly Squadron$1.99
Silly Squadron is a retro-futuristic take on Space Invaders, the arcade classic from 1978. It has all the Soiree ingredients you're craving for: fast action, addictive gameplay, strange boss fights (including a mighty middle-aged man) and a seriously sumptuous soundtrack.
Lazy Galaxy: Rebel Story$4.99
Start a Rebellion! Lead your ships to take down the evil O'Xelg base in this squad-based shoot-em-up!
👾 Foreign Frugglers$4.99
The Fruggle is real! Four brave survivors need to protect mother earth from spacey invaders in this pixelated arcade style 2d shoot 'm up.
SPACE DANCE$0.99
Space Dance is a 90s-inspired space simulator where you defend Earth from alien invaders. Choose from three weapon types, face challenging battles, and upgrade your ship to compete for the highest score. Get ready for an intense space adventure!
Xappy Ship$3.99
In this classic retro arcade-style space shooter, you'll embark on a thrilling adventure through the cosmos, battling against an onslaught of alien invaders and formidable bosses. With its pixel graphics and pulse-pounding soundtrack, Xappy Ship is a love letter to the classic space shooters.
QorenaFREE
Qorena is a top-down, bullet hell, action-arena shooter of pure, survival, action! Bundled with a wide variety of multiplayer levels of bullet-raining hell, numerous monsters to fight, and the ability to customize the world!
Nebula$3.99
Survive in the deep void of the galaxy against thousands of invaders! Nebula is a challenging bullet hell, twin stick shooter where you have to face endless waves of space enemies. Additional map resources and space drones can provide you a support but be wary, they can as well become a deadly trap.
Arcade Classics$0.99
Collection of a few arcade classics, remade with a fresh and friendly looking art style and a beautiful soundtrack.
Cyberhunt$0.99
Cyberhunt is a retro procedurally generated twin stick shooter, that takes you back to the sweet to the sweet arcade machines era!
Demonizer$11.99
The fantasy bullet battle to end monstergirl genocide! Turn hateful humans into lovable demons in this 90s arcade style shooter.
Invaliens$2.99
Retro arcade classic, Defeat a million invaders from another dimension in this side scrolling shoot'em up.
Habroxia$7.99
Blast your way through a myriad of extra-terrestrial incursions in this arcade-style scrolling shooter! Pilot the ship Habroxia through 15 levels featuring intense boss fights, rescue missions, shifting perspectives, and untold surprises.
Invaders from the Lost Sectors$4.99
Invaders from the Lost Sectors is classic arcade action. Aliens descend with increasing speed towards your base. Shoot them all before they land. Player controlled settings like guided missiles, rate of fire, enemy speed and more help you customize exactly the game experience that you want.
The Battle of Aurinoxia$2.99
A retro space shoot 'em up with pixel art graphics, unique enemies, tough angry bosses, and a killer soundtrack. You are among the first pilots to arrive in the system to mount the counteroffensive against the aggressors. Get out there and show these aliens the price for messing with The Alliance!
Rainbow Laser Disco Dungeon$9.99
It is the year 2084. Earth is ruled by evil robots. All music has been outlawed. Dancing is strictly forbidden. Still, in the underground, the beat goes on. Rainbow Laser Disco Dungeon: Half twin stick shooter, half rhythm game, half dungeon crawler. 150% groovy!
Bit Blaster XL$0.99
A throwback to the classic quarter eating arcade games of the 80's. Bit Blaster XL is a retro styled, addictive, and fast paced arcade shoot 'em up! (shmup).
Nebula Invasion$3.99
Nebula Invasion was designed for those who enjoy the classic type arcade games, a spaceship shooter with great game play. Aliens attack many different ways from marching to dive bombing. You have the tools to fight back with a ship that can power-up with double, triple, rapid fire, or plasma cannon.
RefleX$7.99
The second chapter in one of the most loved and respected Japanese shooting game series ever:The Tale of ALLTYNEX by Japanese indie developer SITER SKAIN. Carefully crafted play experiences, destructive fun, and absorbing gameplay have made the ALLTYNEX trilogy renowned in shooting game communities.
Rysen$2.99
An old arcade style 2d shmup.
Spinner Invaders$7.99
Shoot your way through a thrilling action adventure of 120 waves in 4 different game modes while fighting against waves of enemies and 12 extreme bosses. Save the world from The General by yourself or with a friend locally and play 10 different Challenges.
Space Pressure 3D: PreludeFREE
Immerse yourself in the story of two brave space amazons who dare to challenge the irresponsible aristocratic system. Overcome all the obstacles that appear on your way - hordes of space scavengers, armies of General Admiral and get to the main villain - Evil Moneybag!
1982FREE
1982 is a FREE retro inspired blasta-thon that will test your gaming skills to the max.
Return Ace$4.99
Be shot and shoot back! Rule reversal type Shmup "Return Ace"What you have been given is the power to take advantage of the oncoming malice and return it.Please enjoy the unique sense of incompatibility, tension, and striking that the experience of bullet energy weaves.
Just SquatFREE
Just Squat is a shmup and visual Nobel game that focuses on boss fight by growing up a boy. Grow the boy by encountering various events at the gym and school, and push Babel out with all your might! The difficulty of boss fight and the boy's growth will be determined by the exercise you choose!
Soundodger+$7.99
Dodge the music and dance through a mesmerizing ballet of choreographed bullets, each synced to music from over a dozen international artists. Push your creativity and skills with the fully-featured Level Editor and never run out of things to dodge.
ProtoCorgi$6.99
Get ready to Bark’em Up! Play as Bullet, a C³ class (Cute Cybernetic Corgi) pup on his quest to save his owner, a brilliant scientist kidnapped by an alien race that wants to rule the galaxy. ProtoCorgi is a retro pixel art shoot’em up with a strong arcade feel!
Schildmaid MX$14.99
Outnumbered and outgunned in deep space? No problem! Turn your enemies' attacks into pure bullet heaven with your shield tech and absorb projectiles to power up your ship and score big! But when your shield expires and it's danger time, you better switch up your strategy fast...
in My MIND.$0.99
in My MIND. is a shooting game with metaphors about mind and feelings. Face 18 different negative emotions. Your goal is to overcome them without being defeated.
CyberPigeon$0.99
Take control of CyberPigeon, the ultimate cybernetic avian warrior, as you engage in intense battles against swarming drones and formidable bosses. Adapt to the ever-changing environment, collect power-ups and weapons, and rise to the top of the leaderboard in this thrilling aerial showdown.
Rocket Blasters$0.99
Rocket Blasters is a fast paced, action packed shoot-em-up set during the invasion of the Dread Pizza Armada. Its hand-drawn art gives it a unique style. Blowing stuff up has never been so fun!
Astebreed: Definitive Edition$19.99
Climb into the cockpit of an otherworldly war machine and fly into battle against a horrifying alien race bent on eradicating humanity to preserve their own civilization.
PAWARUMI$14.99
Pawarumi is a modern shoot’em up set in a retro futuristic sci-fi pre-Columbian universe. You’ll take control of the almighty ship Chukaru and its three unique weapons! Shoot wisely to either do double damage, heal yourself or charge your Super Attack!
TRIM$1.99
Evil aliens invade Mother Russia with made of garbage war machines.
Cosmo Chaser$4.99
Cosmo Chaser is space fighter action game which presents restless shooting battle. It demonstrates new style of vertical scroll shooter by presenting classic arcade action in 3D space.
RAILGUN 500FREE
RAILGUN 500 is a pick up and play arcade shooter featuring floods of alien freaks. Master the railgun's systems, manage the enemy horde, and you might just live through it all.
SoundStorm$12.99
Reflect bullets to the beat in this psychedelic rhythm bullet hell shoot 'em up. Patterns of rhythm and bullets are melted into a unprecedented gameplay experience. Feel this immersive audivisual experience filling your soul with excitement and joy.
Nephenthesys$5.99
Blast off on a treacherous mission to recover an unidentified energy source amidst an alien onslaught! Nephenthesys is a vertical scrolling shoot’em up presented in widescreen top-down 3D style.
WarspaceFREE
Warspace is a arcade space shooter game.
Sky Force Anniversary$9.99
Legendary shoot-'em-up makes its way on the PCs! Abundant explosions, truly epic boss fights and beautifully crafted 3D environments are here to keep you entertained. Sky Force Anniversary offers single player experience and local cooperative mode for 2 players.
Ghost Grab 3000$3.99
Introducing the Grapple Beam! Chain ghosts together then pop them all at once for points in an endless 'bullet hell' arcade apocalypse.
kosmickop$0.99
In a post apocalyptic wasteland a jerboa is impersonating a police officer, much to the chagrin of a shadowy evil organisation.
PULSOR$0.99
PULSOR is a fast paced shoot em' up space arcade game where you orbit a black hole. Use your quick reactions and aim to blast the obstacles in your way !
Sky Force Reloaded$9.99
Sky Force Reloaded is a classic shoot ‘em up experience packed in gorgeous visuals and excellent gameplay. Enjoy flashy explosions, beautiful scenery and massive bosses in single player or local cooperative modes.