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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Shmup Arena$1.99
Take on intense challenges and waves of enemies in this frenetic arena shooter that demands quick reflexes and nonstop action. Survive the onslaught and defeat powerful bosses while staying in motion, mastering arenas designed for those who crave adrenaline and intense combat.
Vostok 2061$9.99
Vostok 2061 is a modern-graphics vertical scroll shooter. Gorgeous alien worlds, spaceships, and bosses. Explore mysteries as you listen to a great soundtrack!
Endocrisis$9.99
Combat against big bosses and increase the power of your ship through levels and secrets. Absorb or use your armor against enemy bullets is the key defense strategy
Star Trapper FX$0.99
Pseudo 3D spaceship shooter
Burst Hero$2.99
Burst Hero is a pixel roguelike shooting survival game. You can choose heroes with different abilities and use various weapons to resist a steady stream of enemies. In the battle, you can customize your build by weapons bullets and cards. Each battle will have different experiences and challenges.
Touch Force$0.99
Most unique top down shooter. Bring hell to insectoid robot invasion.
Missile Dancer 2$14.99
Missile Dancer 2 is a new sprite scaler shmup that combines rail shooter and caravan STG.
Monsteria$7.99
Introducing a hysterical top-down shooter. Challenge your way through 7+ randomized levels, brimming with hordes of bizarre monsters. Upgrade your character through a selection of 30 unique powerups and minions, unlock special classes and much much more. Monsteria is chaotic fun for everyone.
HyperNova$3.99
A 2D side-scrolling shooter in which you advance by defeating enemies in a world where everything is made of voxels. Defeat enemies, collect reinforcement items, and take on powerful enemies that appear one after another!
REVOLVER360 RE:ACTOR$9.99
The world really does revolve around you in this mind-bending shooter where changing your perspective could save your life.
The Last Archwing$4.99
The Last Archwing is a fast paced, vertically scrolling space shooter. Will you and your friends take up the mantle as Earth's last defenders and thwart the plans of the evil Emperor Zarkhan?
Pilots Of Darsalon$4.99
Your job is to locate and transport the containers to your base avoiding enemies on your way. Your ship is equipped with a hook to carry the containers. This is a physics based arcade game, inspired on the very early classics and with a strong Commodore 64 feel on it.
Memento InfernumFREE
You are unpure, and you have to fulfill God's plan in Memento Infernum, tight top-down shooter where you have to face hordes of demons.
Solbane$6.99
Battle against bosses in a shoot'em up combined with RPG elements. Choose between three diverse classes, and create your combo build from a pool of over 50 abilities. The game features a variety of bosses that require different strategies and builds to conquer.
Mud River$5.99
Mud River is a horizontal 2D Shoot‘em Up game. The Rio Doce (Sweet River) was a paradise for mankind and animals, but now it has become a territory destroyed by the unscrupulous activities of Dr. Wellin. This is Pacal's first destination, ascending the Rio Doce preventing its complete destruction.
A Blast From The Past$5.99
A Blast from the Past is a stunning, classic arcade shooter. Includes gameplay modes for the casual gamer through to "Tournament Mode" for Hi-Score hunters! With 4K/360Hz+ support, experience smooth as silk gameplay in this dazzling arcade blaster with something for every arcade-going fan!
Rebel!$0.99
Imagine yourself living under your favourite oppressive regime. Rebel! Fight waves of SWAT teams. Loot their weapons and money. Buy upgrades. Enlist allies. Face off with the corrupt government bosses. Casual top down/ dual stick shooter with short, intense gameplay and a clever AI.
Eigengrau$9.99
A twist at every turn! Explore a colorful shoot 'em up with varied and diverse gameplay beyond the familiar shooting and dodging. Every situation, every enemy, and every boss offers a different handcrafted experience.
Omega BladeFREE
Shoot, slash, dodge and survive to blade combats in multiple kind of challenges to test your skills and claim your place in the Omega Blade hall of fame.
Cycle 28$3.99
Cycle 28 is a classic arcade space combat game where you have six minutes to beat your high-score. Simple controls, powerful upgrades, and intense dogfights. Perfect for when you just need to switch off and shoot something. See you on the scoreboard!
PigShip and the Giant Wolf$7.99
Pig Ship and the Giant Wolf is a classic Shoot'em Up with a 8btis monochrome aesthetic. Cross the 6 worlds full of enemies and defeat the Giant Wolf to save your brothers.
Gravity Waves$4.99
Gravity Waves is a twin stick shoot 'em up in space with waves of enemies and realistic gravity to provide constantly changing gameplay.
Squad Killer$4.99
You are the Squad Killer! Blast through this retro arcade experience guns blazing! Hope you brought your reflexes because this pixel art massacre offers some good old hard core button mashing fun!
Spaceman Defender$1.99
A New Space Shooter Arcade Game. Defend these Little Spaceman Dudes from Aliens! Blast your way through waves of Alien Abductors and UFOs while defending Spaceman Dudes from being abducted in this fast-paced 80’s style arcade game.
Feeble Light$4.99
Blast off as a little star trying to rid the cosmos of angry celestial beings in Feeble Light, a 3-tone pixel art shoot’em up where minimalistic presentation makes way for precision controls and fluid animation!
Record Store Nightmare$1.99
Zombies are attacking your record store! Throw classic albums and compact discs at the approaching horde. But hey, you're still on the clock, so get those records put away!
SOL CRESTA$17.99
SOL CRESTA, rise like the phoenix and take back the sun! Neo-Classic shooting strikes back! Dock, split, and form up! Pilot 3 fighters and take back the sun from the clutches of evil in this free-form shooting game with the spirit of 80s shooting classics Moon Cresta and Terra Cresta.
Enemy Mind$9.99
A retro shooter with a new power: the power to become any ship.Lost in the depths of space, you are a being of pure psychic energy with the uncanny power to take over and control anything you see in order to survive.Built for PC, Enemy Mind lets you battle your way through 70+ waves of challenging enemies.
Super Arcade Boy in Defender of Planet Earth$1.99
A Retro Style Classic Side-Scrolling Shoot 'Em Up with Super Arcade Boy's Debut! Fly him through 8 levels while defeating waves of enemies and bosses with amusing dialogue, power-ups, HD graphics and full controller support. Super Arcade Boy's up to the challenge. ARE YOU?
Railgunners$2.99
Railgunners is a shooter built to highly customizable difficulty levels. Fight your way through hundreds of enemy ships, and help humanity fight back against the alien invasion!
Hellsinker.$9.99
A legendary SHMUP influential to the best makers in the genre, Hellsinker is now available on steam in its most advanced form! Gameplay, story, graphics, and even music all united into one cohesive and highly dimensional Shoot-em-up!
Wings Of Bluestar$7.99
This is an arcade horizontal shoot'em up, that combines solid arcade controls with modern elements like bullet hell phases, tiny hitboxes, different types of gameplay and scoring, collectibles, trophies and many other features, which makes Wings Of Bluestar a fun shmup for both casuals and regulars.
Dark PathwaysFREE
You wake up in your cell, but this time the door is open and strange creatures will chase you across amazing worlds. You have to look for objects and tools scattered in the labyrinth that can be used to finally stop this threat. Only then you can come back to the peace of your cell.
Devileader$0.99
Devileader, a fearsome space demon who once have destroyed countless planets of the solar system is about to be resurrected by his minions and fanatics, who want to bring chaos to the universe. Pilot the agile space interceptor Deviship and survive the terror of this demon lord.
Guns of Fury$14.99
Guns of Fury is a retro-inspired action platformer that combines the run & gun and Metroidvania genres. Explore a vast interconnected world, gain new abilities and weapons, battle epic bosses and stop the plans of an evil corporation before it’s too late!
Bricks Survivors$4.99
Bricks Survivors blends retro brick-breaker charm with modern roguelike intensity. Survive fast-falling brick waves and face pixel art bosses in a game crafted by a single creator. A unique and addictive experience, available exclusively on PC.
Super Galaxy Squadron EX Turbo$9.99
Super Galaxy Squadron is a fast-paced vertical shooter designed for human beings as well as SHMUP veterans. Featuring multiple game modes, a challenging but merciful difficulty curve, forgiving health system, and SEVENTEEN playable ships.
ARMED SEVEN$4.99
The year is 1989. 12 years have passed since the Gogoh Army’s invasion of Earth. Exposure to alien technology during the war enabled Earth’s own technologies to take massive leaps forward. International conflict that was previously rife in the history of mankind fell to an all-time low, and the Earth Federation was established as a...
Spaceport Hope$1.99
A huge hand-crafted world packed with 13 unique bosses, a gripping story, and tons of enemies, Spaceport Hope is the ultimate test of gaming prowess.
WITCH-BOT MEGLILO$5.99
Stop time and project yourself through space with “Time-stop warp” magic, pass through physical obstacles, dodge incoming bullets and shoot down your enemies! A satisfying shooter, filled with dark humor!
Kamio Recoil$7.99
Kamio Recoil is an exploration shooter, where every shot propels you through zero-gravity! Play as an assembled squad of five girls equipped with Spirit Arms as they maneuver through intricate areas and blast away the yokai invasion in order to defend the world.
Offendron Warrior$0.99
Offendron Warrior is a retro arcade that combines shooting and defense. Your objective is saving Offendron civilians in the planets from the group of enemies, who are trying to spread a virus that turns Offendrons into mindless killing machines and eventually destroy the whole planet.
Warships On The Halloween Night$3.99
Warships On The Halloween Night is an extreme Top Down Arcade Shooter game based on the naval war which broke out between the Human beings and the Living Pumpkins.
ExtraGalactica$4.99
Slow time to a crawl as you pilot your super charged space craft through randomly generated waves of enemies, defeat huge bosses, and explore a cyberpunk planet with a flunking college football captain and his team's feline mascot Nova!
Super Arcade Boy in Goodbye Greenies$1.99
A Retro Style Classic Shoot'em Up! In this second installment of the series, fly Super Arcade Boy through 8 levels while defeating waves of aliens and big bosses. Have funny conversations with the alien leader you are destined to defeat, then save the planet from this massive alien invasion!
Proxy Air Force$3.99
Proxy Air Force is a 2D Arcade Shoot Them Up game based on the story of the world war which broke out between the US and CES countries in 2020.
Xentron Attack$0.99
Xentron Attack is a multi-directional shooter. The evil alien forces called Xentron have invaded your galaxy and spreading dangerous meteors and missiles in the space. Fight with smart enemies who calculates your movements. Turn your ship precisely and use the borderless space wisely.
Starship Turd Nugget: Too Cool For Stool$1.99
A retro-arcade-inspired space shooter with tongue-in-cheek humor, a focus on exhilarating powerups, and score attack.
A Circle Among Squares$5.99
A hard, fast-paced, minimalist shooter/bullet hell game. Survive and shoot all black squares (or make them shoot themselves). 200 levels, lots of enemies and even more bullets!
In The Valley of Death -Prologue-$3.99
In the Valley of Death is a color-based hack and slash twin-stick shooter, where the player controls Red and Blue as they dash, slash, and shoot their way through challenging levels as they attempt to make it to the Valley of Death.
Z-Warp$6.99
Z-Warp is an intense vertical shoot’em up presented in retro pixel art style, featuring frenetic arcade-inspired action where blasters, bombs and KILLER specials are your only allies.