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.

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...

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.

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.

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....

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.

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

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.

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. 

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!

Pilot a momentum-driven ship through the cooled remains of dead star systems. Master a growing arsenal, take on 10+ unique epic bosses, and tackle four sectors your way. The world is seed-generated — build and share your own in the free level editor.

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.

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!

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!

Top-down arcade space shooter with retro pixel-art style. Fight waves of alien invaders across world landmarks, buy upgrades between battles, collect power ups, participate in events & missions, defeat epic bosses, and more.

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.

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

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

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.

Hyperwired is a classic top-down action shooter, where your spaceship has a plug hanging from it. Wire yourself into sockets, gather upgrades, and unlock ships as you explore a procedurally generated galaxy with roguelike elements.

Defender's Squad is a sci-fi vertical scrolling shooter 2D that combines 7 different levels. Play Solo and pick one of the 3 ships to kill enemies and save the earth from aliens.

This is a rogue-like top-down shooter where you control a spaceship that is sent out to explore the caves on the Moon. Once you enter the caves, you find out that there are enemies. It is up to you to survive against them while also trying to find the path down to the next level of the caves.