Top similar games like KaBoom!:

Blast and weave your way through enemy fire while managing a wide variety of ship power-ups in this retro style horizontal shoot-'em-up!

Fast paste, fast typing, arcade, die and retry game. De-coding Armageddon is a game to practice your speed and reflexes, perfect for when you are waiting on another game or wether you just wanna kill sometime. 

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.

Retro platfroming action! Flip gravity at will as you navigate through challenging levels and battle enemies. Gain new powers and abilities as you progress. Unlock power-ups and items by collecting and spending gems.

An action bullet hell. Dodge enemies attacks and collect upgrades to make it to the end of each level.

A twin stick, fixed shooter, bonus hell, pixel art, shoot 'em up. Aliens have invaded and you, a blue housecat with a stretchy head, are, of course, our last hope. Fight the aliens on earth, under the ocean and in space in this risk/reward based fixed shooter inspired by old school shoot 'em ups.

Gear up for an intergalactic thrill ride! Space Elite Force is a frenzied space-shooter packed with weapon customization and epic boss battles. Take command of your ship and fight for the survival of humanity!

Gray goo is a short retro arcade shooter with lots of upgrades. This game is about destroying goo in space and saving the universe.

Jetboy is a retro supercharged jetpacking pixel shooter with a pumping metal soundtrack.

Captain Galactic is a colorful retro sci-fi platformer where you ride a hoverboard through strange alien worlds, collect crystals, unlock abilities and items, dodge deadly traps, and blast enemies with your phaser.

CORA (Counter Offensive Rapidfire Automata) is a singleplayer/multiplayer top-down shooter created by Empty House Games borrowing inspiration from other arcade top-down shooters.

In this 2D sidescrolling rhythm game use your MIDI instrument or computer keyboard to guide a robot alien cat through space!

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.

Defend the Little Spaceman Dudes from aliens! Blast waves of Alien Abductors and UFOs across 50 challenging levels in this fast-paced ’80s-style arcade space shooter.

Mix and match colors and blast your way through waves of Chromies in this fast-paced retro arcade shooter. Play as the Hue-Men to defend the Rainbar and restore color to the fading planet of Chromara!

In the vast depths of space, lies a man with a dark past. Setting himself apart from that old life, and seeking justice against wrongdoing instead of being the cause of it, Captain Righteous uses the Freedom Fighter, his trusty space fighter to search for and combat the evil Captain Buster!

Jetpack Kiwi is a classic 2D side scrolling shoot em up game featuring 20 levels, 5 bosses, hordes of enemies spaceships, with multiple characters to choose from; each one with an unique special attack. Complete the game in single player or with a friend in local co-op!

Survive 10 enemy stages! Shoot 'Em Up style, spaceship game, in pixel art and 8-bit retro music! Evolve your shot to the maximum level, use the energy bar for upgrades, and special abilities! Advance each stage by defeating Bosses and enemies to collect new skills, transformations and extra lives!

Turn the incoming swarm of deadly bullets into your own weapon of chaos in this precision STG bullet hell. Grab and toss enemies, dodge and deflect torrents of bullets, and reshape the battlefield with explosive chain reactions.

Squab is a young pigeon who woke up in a cage, but his father Maximus had disappeared, leaving only a red cap behind. Find out how to save Maximus by overcoming unimaginable challenges in this thrilling and exciting adventure.

Quadroids is a single-player puzzle platformer with a twist! Don’t be fooled by its simple pixel-art style and put your neocortex to the test while you try to control 4 screens by yourself and clear 100+ mind-twisting levels!

STUCK is a retro-style platformer where you play as an astronaut stranded on an alien planet. Use your jetpack to run, jump, and bounce on enemies as you explore levels, avoid hazards, and collect ship parts to rebuild your ship and escape.

Escape Space is a classic arcade space shooter with RPG mechanics. Fight for various factions against swarms of enemies or bosses and improve your standings, level up your rank, unlock new gear and weapons, and upgrade your spaceship.

Alien Breakout is a precision platformer where you control an alien that has been captured and must escape from the laboratory.

Timeloop Titans is a fast-paced space arcade shooter where you defend the breathtaking Planet Gaia from relentless alien invasions. Upgrade your ship, conquer challenges, and save humanity in this cosmic battle for survival!

When scientists succeed in creating super smart machines, the machines turn on their creators and threaten the future of mankind. Only one plucky blue robot can save them in this twenty-level action packed platformer!

Qwepoi is a speed arcade spaceshooter game using both hands in Q, W, E, I, O, P keys (or even in controller), where you must paint the Infantry ships before they enter the base! Each level inscreases the challenge!

Escape the alien threat! Unleash searing lasers, fire precision phasers, and launch sizzling plasma bolts. Blast, spin, and cut your way through hordes to unlock your ship's potential as you unveil hidden horrors. Challenge the world, arcade-style, and ascend as the galaxy's ultimate pilot!

Bad Chicken is a retro styled sideway scrolling shoot-em-up inspired by the retro classics. It takes place in 8 locations in the Ferus system, each one with different challenges, and dangers.

Run and reverse gravity in this simple but unique platformer, clearing experiments as a cell that dies in one hit. Navigate microscopic alien environments, dodge hazards, eat cookies, and fight robotic bosses.

Side-scrolling, retro 2D shoot'em'up with rogue-lite elements. Survivors-style game.

"Astro Wings: Space War" is a retro style, exciting and authentic bullet hell, space shooting game.This game brings you the thrill, urgency and fantastic experience of an authentic arcade shooting game.

Classic multi-directional (360°) shoot 'em up. Navigate your UFO through hazardous environments with dangerous enemies and beat huge bosses!

Space Strider is a 2D Sidescroller Shoot 'em up with Roguelite elements, where you beat hordes of enemies and defeat unique bosses. Unlock, upgrade and level up your Spaceships to become the ultimate Space Strider!

Cross the universe, shoot aliens, upgrade your weapons and face powerful bosses with AB in this retro inspired lateral shoot 'em up to save the world. Adventure into Campaign Mode or face the never-ending waves of Endless Mode with suitable challenges for all skill levels.

TRAXION is a space-themed cave flyer featuring beautiful pixel art, great music, and tons of meticulously crafted physics puzzles.