Top similar games like Illvelo Swamp:

Hypnogenesis is an experimental video feedback bullet hell game in which arcade gameplay is integrated with the controls of a video synthesizer.

A brutal score-attack bullet hell where survival is not enough. Graze bullets, stack multipliers, and chase the leaderboards in Boss Rush and Infinite Arena. No meta progression. No unlock treadmill.

Defend the Earth in this hyper intense, visually overwhelming, bullet hell, arcade shooter.

A neon bullet-hell where the swarm is alive. Outlast escalating waves with pure movement — no cover, nowhere to hide. Just geometry, reflexes, and the void between enemies.

Geometry Wars: Retro Evolved is a old school style shooter, but remixed for the 21st century with next generation graphics and deep, modern gameplay. Playing is simple: you are a geometric "ship" trapped in a grid world, facing off against waves of deadly wanderers, snakes, and repulsars.

Insane Twin Stick Rythmic shooter. Defeat waves of enemies shooting to the beat. Conquer every genre from chill house to hectic breakbeat.

Shoot. Dash. Collect. Upgrade. VCTR is a kinetic arcade shooter where two simple actions create countless strategies. Read the field. Choose when to act. And turn the chaotic battlefield into a dance of high-risk, high-reward play.

80 waves. 8 bosses. 17 logs that will make you question everything you've been defending. Locus Protocol is a twin-stick bullet heaven with an adaptive AI Director and a horror story hidden inside a cozy geometric shell.

Welcome to the world of Polygun, an endlessly customizable hero shooter where you battle against an ever increasing hoard of bloodthirsty shapes! With an array of upgrades to choose from, you'll quickly build from humble beginnings into a hexa-bustin killing machine!

Would you survive a panic attack? Test your limits in this anxiety-inducing twin-stick shooter, blasting away intrusive thoughts using your Inner weapon.

Escape corruption and deliver truth to the people in the only way you know how. as a space fighter pilot! You steal a ship and flee, it falls to you to duke it out in space and deliver truth to the people. Restore peace. Restore justice. Save humanity and Escape The Kreegan!

Neon Fighter is a tiny arcade game packed with lasers and explosions, in which every few seconds you are forced to switch weapons automatically, making you have to adapt quickly to the new situation and re-evaluate your perspective.

Prepare for bullet hell action and crazy driving! Your town is on fire, anarchy reigns the streets, aliens rampage in the sky! Grab your gun and join the fun!

"Raiden" unites! Get ready to blast into a thrilling new dimension like never before!

Trigonarium is a hardcore twin-stick shooter for fans of challenging arcade gaming. Fight your way through multitudes of enemy formations in constantly shifting battle arenas to face the colossal level bosses.

A symbiotic Flower and Wasp struggle to complete their lifecycle, in a challengingly twisted arcade experience. Control both characters at once in mind-bending Single Player, or team up with a friend in hectic Local Co-Op. Master the symbiotic duet, devour the swarm, and ascend the leaderboard.

C6: Frontlines is a bullet hell co-op roguelike where only YOU (and your friends) can bring the Azapall galaxy to peace. Wield 30+ weapons and gadgets of mass destruction to even the playing field, wave after wave, against a seemingly endless onslaught of evil!

Shoot your enemies and try not to let them multiply themselves and turn the game into a chaotic space battle! Space Maxwell is an arcade shooter where your spaceship has the ability to destroy or to multiply your enemies. Climb the leaderboard and try to survive as long as you can!

A hololive fangame featuring Inugami Korone of hololive GAMERS! Collect as many Korone Boxes as possible while contending with an endless onslaught of enemies and bosses using whatever weapons you happen to pick up!

It is the year 2084. Earth is ruled by evil robots. All music has been outlawed. Dancing is strictly forbidden. Still, in the underground, the beat goes on. Rainbow Laser Disco Dungeon: Half twin stick shooter, half rhythm game, half dungeon crawler. 150% groovy!

Survive as long as you can in an endless bullet hell with randomized stats and weapons.

Tank vs Orcs is an action packed twin stick shooter in development where you get to live out the ultimate power fantasy; being a fricken' tank and battling endless hordes or orcs.

Collect synergizing items to create an overpowered character to fight hordes of cyclops monsters. Cyclo Chambers is a fast-paced, top-down arena shooter with light rogue-like elements. 150 items to choose from to create frantic combinations. Different runs every time.

XenoFeud is an insane top-down twin-stick arcade alien shooter, where you must survive hordes of alien intruders while defending a mysterious object in space.

cursor+cursor is a fast-paced arena shooter where you don't control one avatar... but two at the same time! Position your pair of cursors wisely to protect your core, upgrade your equipment and create unique builds to survive, all the while enjoying a "minimalist cyberpunk-ish" vibe.

Blast it all to hell.

Steel Alcimus is a top-down helicopter shooter. Complete various tasks with your ally aircraft; such as saving the carrier, taking down the buildings, carrying objects, etc.

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!

ShapeNeon Chaos is an old school style space-shooter. You are a ship facing off waves of deadly enemies. This game was made to give you a shot of adrenaline in a couple of minutes. Lots of bullets and neon in an arcade psychedelic shooter!

GunDeck[100] is a lightning-fast twin-stick shooter where you’ll build your arsenal from randomly-dealt cards. Weapons fire in a rainbow of elements with unique effects. Dart and dodge to survive the fireworks unleashed against you, and retaliate with your own display! Can YOU survive to wave 100?

Roguelite Overpowered Wizard Simulator. Slay hundreds of cultists using the power of ancient cards and your magical steampunk arsenal. Choose from a diverse set of cards to create unique, game-breaking builds and shoot down the horde trying to stop you.

Crush the forces of hell and get a high score in this addictive, action-packed, arcade-inspired twin-stick shooter!

Data Strafer is a chaotic bullet hell shoot 'em up that tasks you with infiltrating a network to destroy forbidden knowledge. Defeat enemies to absorb their power and activate your own upgrades.

Chaotic Pursuit is a hardcore Top-Down Shooter with cute graphics. You miss a shot and you're out!

Obliterate a never-ending horde of enemies while you attempt to reach the 30 minute mark. Race to earn XP and level up to gain new items and opportunities for each run to become stronger than the last.

Retro style 2D vertical scrolling simple shooter.