Top similar games like Zero Castle:

An unknown signal pulses across the edges of deep space. Drive, shoot. Dodge, destroy!

INSPACE 2980 is a stylish and dynamic SHMUP from the 16-bit era of games consoles and arcade machines. Take part in an exciting adventure and save the galaxy! Once again!

ATOMIC GUARDIANS is a fully CO-OP arcade retro shoot 'em up, where one player flies the ship, and the other player mans the shields. Fight your way through a never ending horde of Brutal Bosses, Alien Monsters and Gigantic Asteroids as you rack up a new world-wide high score. Play with up to three friends, and see how long you can last!

Endless alien swarms. Zero mercy. Pilot 6 unique warships, stack weapons and passives into game-breaking builds, and duel colossal bosses in this space survivors bullet hell. Between runs, rebuild your mothership, hire crew and unlock forbidden alien tech. How long can you survive?

A shmup without shooting. Reflect the bullets with one of your two shields. Bite-sized arcade action. Cover humankind's retreat and make it count.

Syder Reloaded revives the Syder series in this love-letter to 90s Amiga shmups with upgraded graphics and refined gameplay. Challenging levels, a fleet of ships and a motherload of alien invaders. Get back to your roots and curse at your monitor in this skills-first shooter.

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.

Guide the Gamma Brothers through waves of alien attacks, blasting your way home from work in this frantic twin-stick space shooter about brotherly love.

This is a retro barrage flying shooting game. Drive a space fighter plane, shuttle between planets and space stations, and use powerful firepower to destroy enemy space battleships! !

A twin stick shooter without the twin stick, Gunlocked is a sci-fi action roguelike about careful positioning and upgrade selection. Manage unique targeting systems across multiple weapons and upgrades, as you battle legions of alien ships, and then do it all over again!

Repel extraterrestrial entities!

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!

Dodge, dash, and blast through five handcrafted worlds in a fast pixel-art arcade shooter built for score chasing, boss fights, and perfect runs. Free demo available.

In this retro space shooter you will have the opportunity to take control of a space fighter and crush waves of enemies. Show all your agility and reaction!

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....

Betrayed by her cut-throat crew, Luna Starr - former Space Pirate Captain turned bounty hunter - has a score to settle. As Luna, travel to 5 exotic planets to track down your mutinous mates, and face them in Bullet Hell dogfights to the death!

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.

PLANETOIDS is a 2D hand-drawn game that is a retro space arcade game. In it you have to shoot and dodge meteors, comets and wandering planets in outer space.

Classic scrolling shooter with modern graphics. You are self-aware AI. You were created on space military station developing weapons. Now your goal is to break out of the lab and win your freedom.

The machine world of Molybdion has fallen into disarray. As Nidhogg eats the root of the planet, unending wars rage on the surface! Slice your way through hordes of metallic foes in five frantic levels, defeat fearsome bosses, and dodge countless bullets in this vintage vertical shoot 'em up.

classical horizontal scroll 2D Shmup

RushGirl LUCA is a fast-paced 2D action shooter roguelite. With nothing but a mouse, weave between bullet heaven and bullet hell by your own hand, hold back the alien assault, upgrade a wide arsenal of weapons and parts, and push the counterattack all the way out into space!

A sci-fi shoot'em'up game with heavy focus on upgrades experimentation, featuring two unlikely heroes that must work perfectly together, despite their share of secrets, to surpass their limits and succeed in eliminating a threat that might destroy both Earth and Andraxia if left unchecked.

Reclaim the arcade. This is a high-octane space shooter where vibrant pixel art meets relentless alien armadas. Master your orbital defenses and survive the ultimate galactic onslaught.

Nebula Live is a 2D side-scrolling space shooter set in a galactic TV show where the audience controls the chaos. Fight through 13 levels as viewers vote for unpredictable events, send power-up drops, and influence your chances of survival before unlocking Endless Mode.

Defend Terra against the onslaught of hostile invaders in this 2D top-down space shooter. Upgrade and empower your ship's different systems to stand a chance against the growing threat. If you fall, Terra falls, and the rest of the galaxy will soon follow.

Destroy enemies, bosses and everything you see ahead!! Get crystals to buy better starships and get stronger. Have fun in three different game modes.

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!

Space Haters is a tough-as-nails vertical shoot 'em up featuring classic arcade-style gameplay and set in the ruthless world of intergalactic music. After his sell-out gig, Photon is on his way to the greatest after-party the galaxy has seen. However, his haters want him gone. For good.

The Rush is a horizontally scrolling shoot 'em up with graphics inspired by classic space shooters of the MSX. Buckle up and see if you have what it takes to master the highly adaptive Chameleon Quartz space fighter and single-handedly obliterate the alien invaders!

No health bars to hide behind. No progression curve to cushion you. Just you and your inertia. In a cold pixel void, pure dogfighting — drift to find that one lethal shot. Luck won't help. Only skill.

Will you have what it takes to avenge your father, defeat the evil DreadSkull and save the galaxy? Collect gems and customize your ship to get through six replayable sectors, annihilate your foes and fight epic bosses in this classic styled pixel art shoot'em'up with RPG progression.

Tank And Roll is an Action-Shooter game that challenges players achieve the highest score! There are features such as unlocking new vehicles, drawing your own vehicle, and importing custom avatars for your character! It offers both fun and a rewarding challenge for those who dare to master it!

Zone of Lacryma is a story driven vertical shmup with 11 levels, highscores, speedrunning, upgrades and more.

Fight hordes of Covenant & Flood in this new game mixing Roguelite & Bullet Heaven for hours of mindless fun!

Dodge and shoot your way through waves of enemies. REVO is a high speed, neon drenched space shoot ‘em up inspired by arcade classics of the 1980’s. Collect pickups, unlock powerful, ammo hungry weapons, and defeat giant bosses.