Top similar games like Protocol: Bullet Hell:

Midnight Heaven is a roguelite shooter where you fight against hordes of deep space creatures. Vision is limited. Enemies are endless. The chance of survival is low. Only the fittest will survive. Create your own build from a variety of items and devices, allocate stats, be the fittest, and survive.

Enter the Infinity Trials, an action-packed fast-paced rogue-lite. Fight off waves of dangerous creatures and collect artifacts to enhance your abilities. With each victory, you'll be teleported to a new world, each with unique challenges and enemies.

Stranded in Starlight is a top-down roguelite where you pilot a spaceship armed with a variety of unique weapons and utilities. Battle relentless enemy hordes and powerful bosses as you upgrade your ship, adapting to each challenge in an ever-changing fight for survival.

This is a mixed type game that can cultivate characters, and battles can be divided into tower defense and duel modes. Players can also enter random maps for exploration, challenge difficult bosses, or discover treasures

Ether Loop is a hardcore fast-paced bullet hell with roguelike elements. Descend the unforgiving depths of a mysterious world, encounter challenges, discover dynamic environments and fight ruthless creatures while unveiling the secrets of Ether Loop.

Face challenging bosses and hordes of enemies in an action roguelike, using elemental weapons and unique combinations to master each cycle.

ScourgeBringer is a fast-paced free-moving roguelite platformer. Help Kyhra to explore the unknown and slash her way through ancient machines guarding the seal of her past, and maybe the redemption of humanity.

OVERPOWERED DINOSAURS fighting to DEATH!!! Fight against unending waves of dinosaur enemies and get crazy upgrade combinations to become the strongest dinosaur in this arena shooter!

Stay in the light, hunt the dark. Create your own hero through the four dimensions of role, skill, talent, and blessing outside the battle. In the battle, choose the most suitable equipment and weapons strategically to improve your strength and continue to fight.

Craft your gun. Shoot down enemies hordes. Upgrade weapon, remake weapon, combine weapon. Unlock new characters and new modules. Make great gunsmiths regret their inventions!

Meow Legion is a game about assembling an army of cats to defend against waves of enemies.A top-down roguelite shooter game where you hire cats and level them up to fight mice from the evil Mousy Empire!

By Bait or By Bullet is a bombastic 2D fishing rogue-lite adventure with both story-rich top-down exploration and action-packed platforming combat, made with Unity and available on Windows and through WebGL!

Kuiper belt survivor is an arcade style bullet heaven, where every run is endless. It brings a unique spin to the bullet heaven genre by making every part of the players weapon arsenal customizable with well over 10,000 unique weapons to build, and unique stats for every enemy.

Henshin MyBro is a rogue-lite game full of nonstop fun! Play solo or with a buddy, scavenge ingredients from monsters and bosses, experiment with weapons, cook dishes for boosts, and HENSHIN to special heroes. Cook, fight, and HENSHIN your way to victory!

Mystic Explorer is a treasure rogue game. Players will play the role of treasure hunter in search of treasure chests in the siege of monsters, defeat the ever stronger enemies, and bring back your own archive treasures.

Master tactical combat and collect powerful Sigils in this challenging roguelike. Navigate procedural maps through three acts of escalating difficulty, where every encounter shapes your build and every decision determines your survival.

A tactical auto-shooter where you build your own maze! Combine tower defense, roguelite powers, and upgrades to survive endless waves of monsters.

Super Grower is a fun game of agility and reflexes. In this game, you must control a white square and grow the square to an immense size to eliminate all other objects on the level. By moving the square around the playing area and eat the smaller yellow tokens your square will grow big.

Defend your castle from various hordes of enemies that seek to invade it! Little Mages is a casual pixel art game with roguelite elements where you accumulate knowledge and learn powerful spells of your choice to defeat all your enemies.

Overture is an action-adventure roguelike which draws heavy inspiration from hits such as Diablo, Realm of The Mad God, Zelda, and The Binding of Isaac. Explore vast randomly generated dungeons and slay hordes of cunning enemies!

A combination of platforming with a gravity gun, BEEP is an amazing physics-platformer. Despite its friendly art style, this is a hardcore platformer in the truest sense.

Stickman's Arena is a top-down arena shooter roguelite where you play a stickman wielding up to 6 weapons at a time to fight off hordes of enemies. Choose from a variety of upgrades and combine your weapons to create unique and game-breaking builds.

Dive The Depths is an action-roguelike set beneath the ocean's surface. As a humble diver, you must navigate the world filled with bizarre sea creatures, submerged ruins, and forgotten histories. Can you conquer the depths and unravel the secrets that hidden beneath the waves?

Use the last remaining mecha to fight against massive undead hordes. Mine blocks for upgrades and combine them in surprising ways. Defeat the Evil Skullhead.

Defend against the alien invasion and take down the mother ship! Utilise branching upgrade trees, unlock new ships, and equip permanent upgrades to create your own unique build and defeat the growing hordes of invaders in this sci-fi action roguelike!

Barbarization is a roguelite dungeon crawler with elements of bullet hell and RPG. Loot weapons, rare items, and special ability cards to build a unique character each run. Face enemy hordes and challenging bosses to claim new territories and expand your civilization.

Unleash Mass Insect Extermination! Entomophobia is a casual Bullet Heaven with rogue-lite elements. Slay bugs, amass upgrades, and escalate your power against the swarms. Crush, upgrade, dominate – the insect reign ends with you!

Battle through the Nine Realms in this Norse-themed roguelite, blending survivor and twin-stick action. Slay hordes, collect runes, upgrade abilities, and ascend as Odin’s chosen champion.

Craft spells by combining words. Pick a Noun, Verb, and Adjective to change your projectile, behavior, and element. A fast arcade roguelike where every new word unlock changes how you play.

Disaster Blaster is a roguelite automation card game where you play a questionably sane scientist building the most over-the-top weapon in the universe. Design your blaster’s shooting mechanism and let it rip against hordes of alien enemies across a galaxy of unfortunate planets.

Clean, Quota, Upgrade, Repeat. Super Polished is a Top-down cleaning roguelite where you clean up while the mess is still being made.

Vanquish the ever-growing hordes, Command your army, grow in strength and numbers, and conquer your enemy's castles in this casual top-down roguelite.

Oh no! Anxiety Bot has found himself in a meteor field! Try to help him survive as long as possible in this cozy, laid back arcade shooter. How long can you keep him safe?