Top similar games like Unknown Hero:

AREA WARS™ is a fast-paced 2D omnidirectional shooter where you battle enemies from every direction in a constantly changing enclosed area. Defeated enemies trigger chain explosions that engulf nearby foes and boost your score multiplier. Built for short, repeatable runs with score-focused gameplay.

MEGALITH is a difficult Bullet-Hell Boss-Rush where you fight against megalithic machines in a tiny spaceship.

One prisoner. One hit kills you. Fight through 30 sectors of a space prison ship in a top-down roguelike shooter where every bullet can end your run. Reflexes, precision and dash — or die trying.

On SPACE HIT you finished your space mission, and it's just time to come back home, but your journey will not be so easy as you think...

A trip through slipspace gone awry. Shoot and evade waves of attackers for your freedom in this twin-stick shooter micro-game!

You've been dropped into enemy space. Weave your Starfighter between alien spaceships, lasers, asteroids and bombs destroying as many as you can and collecting valuable coins and powerups as you go.

RebelSector is a horizontally scrolling shoot-em-up inspired by HudsonSoft Caravan shooters.

Star Knight: Order of the Vortex is a rogue-lite, bullet-hell, shoot-em-up with the ability to create unique builds and synergies as you test your skills in action-packed gameplay. Choose your crew, upgrade your ship, and explore the unknown depths of the Vortex.

Grab the fate of all life in your hands. Blast your way through the cosmos, destroying monstrous cosmic beasts and the space cultists summoning them, on your path to stopping your mother from unleashing the chaos realm upon the universe, in this sci-fi cosmic horror bullet-hell, STARR RINGER.

The Swan EM-43DSC... A experimental fighter jet blasts through the skies of the New East/West. And as the pilot clutches her yoke, she commits to her rebellion knowing full well, that her mission is not for the faint of heart....

Shoot different types of spaceships while avoiding getting shot yourself. Kill 10 minutes at a time with this affordable colourful timewaster.

You've escaped from the galaxy's most secure space prison, and now there's a bunch of angry lawless chasing you. You must survive, fight for your freedom, and outrun these grumpy pursuers. Asterobits delivers a relentless (and slightly absurd) escape in an arcade-style roguelike space shooter.

A linear danmaku shoot-em-up with some visual novel elements. Clear 6 stages across 4 difficult settings, each with unique enemy spawns, bullet patterns and boss phases. The game is structured to have each difficulty cleared in sequence, with the full plot unfolding across each one. 

Fight through dangerous space stations in this 2d Bird's eye rougelike dungeon crawler! Clean up as many stations as you can!

A shooter in the space arena, in which you grow from a small, clumsy to a powerful capital spaceship, using resources obtained from destroyed hordes of enemies and other cosmic evil.

Stel is a spaceship action-adventure game with procedurally generated elements. Fight dangerous foes, improve your ship and explore the different levels to decipher a mysterious problem, the Quantum are disappearing...

Ranphon is a side-scrolling space shooter where you control a small ship called Phon in a vast and frantic space full of hostile spaceships.

A 2D vertical shoot 'em up that lets you upgrade your ship with an insane amount of options. From missiles and pods to specials and shields, you can upgrade every bit of your ship from guns to thrusters.

A broke bounty hunter. A sarcastic robot. 1,000,000 credit debt. Star Scrap is a chaotic twin stick space roguelite. Blast through increasingly difficult waves of enemies to pay it off.

Dodge! Speed up! Destroy! Here you will have to challenge yourself to the maximum in order to defeat all the challenges and leave in one piece. Relying only on your reflexes and the movement of your ship, you will have to face everything from asteroids to giant robots!!!

Can "Super Meteor" save the universe from the space debris created by the development of space by the people of Earth?

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!

PRISMIDIA: Spirit of the Rift is a sci-fi shoot 'em up game in the style of arcade classics. Dodge barrages of attacks, survive bullet hell bosses, and save Prismidia!

Deadly Racing Duel - in the role of a racer who conquers circuit auto racing, you accept challenge after challenge in order to prove how good a racer you are.

Retro pixel-art top-down space shooter. Battle waves of alien invaders across world landmarks, upgrade your ship, collect power-ups, tackle events & missions, defeat epic bosses, and chase high scores.

Fly a momentum-driven ship through procedurally generated dead star systems, then land and fight on foot. Shape each world before you build it, master a deep arsenal, upgrade modules, hunt down 16+ bosses. Four difficulties, New Game+, and upgrades that keep paying off. Discover the Vey.

A platform shooter that brings 90's gaming smashing into your face! Blast and insta-melee your way through hordes of alien soldiers, robots, bosses and loads more. Fight on foot, in a fighter or in a bomber. Take on bosses and ensure that the alien menace won't threaten Earth ever again!

The critically acclaimed update to the Space Invaders franchise has arrived to invade Steam with greatly improved graphics and audio! Packed with pulsing, vibrant visuals enhanced further by interactive sound. The invaders have evolved, the question is: can you keep up?

A fast-paced roguelike space shooter where every credit counts. Fight through dangerous sectors, upgrade your ship mid-battle, and convert your earnings into permanent power. Because when you die, you keep what matters.

Fly the sun-killer gunship Heliobane against a hive that eats stars, in an Amiga-style vertical shoot 'em up. Strip guns off the dead, buy the rest from a trader who calls you kiddo, and break fifteen screen-filling Heralds across three worlds.

Shoot stuff and earn $pacecoin in this wonderfully generic shmup.

Oxygen Survivors is a side-scrolling roguelite where you control a spaceship supported by up to 6 drones that follow your movement. Fuse your drones together, get upgrades, and survive the final boss before the oxygen runs out.

Alpha Force Zero is an intense top-down bullet-hell adventure that requires skill and planning. Utilize multiple weapon systems including an Auto-Turret with adjustable firing modes and unlock upgrades that you can equip in your ship to give you the upper hand. Dodge, fight, survive!

This is a retro space shooting game, where you only fight against the strongest enemy. There are 15 unique bosses in the game, and players need to use different weapons and strategies to defeat them. Dedicated to you who are both challengers and retro game lovers.

Cosmic Cursor: Prologue fuses simple mouse-based controls with a challenging, reactive bullet hell for the ultimate pick-up-and-play roguelike experience.

Beyond the Field is a 2D pixel art top down shooter set in space, inspired on another classic game with asteroids, where the achievements you unlock along your gameplay contain lore about the current state of the world, with some even being required to unlock the final boss.