Top similar games like Alien Decimation:

A retro-inspired arcade action game where you shoot, split, and dodge bouncing orbs across vibrant alien worlds. Grab power-ups, unlock characters, and climb the leaderboards as you battle through hundreds of increasingly challenging levels.

Invaders from the Lost Sectors is classic arcade action. Aliens descend with increasing speed towards your base. Shoot them all before they land. Player controlled settings like guided missiles, rate of fire, enemy speed and more help you customize exactly the game experience that you want.

Alien Wall is a powerful genre mix between a brick breaker and ‘shoot em up’. Modern retro Arcade fun at its best!

WE HAVE ALIENS, YOU DON'T—Blast Martian invaders and flying saucers across 30 stages with robotic voice effects. Use your destructible shield, rescue army men for bonus points, and chase the high score.

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.

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!

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

classical horizontal scroll 2D Shmup

Defend Spacebase 19 from the asteroids swarming down on the station! Shoot down waves of stones and equip different powerful weapons. How many waves can you last? A simple nostalgic retro arcade turret defense shooter.

Enjoy fast paced action in this retro inspired arcade ShootEm Up Style game

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.

Pewt 'em Up! is a retro inspired arcade space shoot 'em up with lots of upgrades, achievements, extras and more.

Katalyst is a 2-D Space Shooter for the people who love and grew up with Space Shooters! Guide the Hero on his journey to defeat the evil aliens threatening civilization! If you like dodging bullets, precision shooting, and only being able to move in 8-directions, then this game is for you!

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.

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!

Classic 80s inspired shooter

This action packed sci-fi match three shooter is an homage to the classic arcade games we grew up with.

Move and shoot to the beat to defeat the evil alien invaders in this retro-inspired arcade rythm game!

Repel the humans! Safeguard the future of all alienkind! Fueled by a large selection of quirky upgrades and power-ups, strengthen the alien alliance to destroy Humanity's Last Hope in this fast-paced retro action-arcade shooter with roguelite and tower defense elements.

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.

Collection of a few arcade classics, remade with a fresh and friendly looking art style and a beautiful soundtrack.

Race through caverns while blasting away enemies and terrain to reach the depths of Mars in this reimagining of the 1981 classic.

To bring you the old school 2D space arcade feeling in a modern look and feel. Whether you like the hard core style of the old days, or you have become the more lay back type, shoot your way home at the fun rate for you. Upgrade your ship on the way home, to get ready for the final battle. Have fun!

Save Earth from an invasion of intergalactic chickens! Finger-blistering arcade shooting action for one or two players.

Frantic 4-player laser ricocheting top-down shooter. Keep it casual and enjoy the chaos, or master the surprisingly deep mechanics to obliterate your enemies. Duke it out locally in free-for-all or 2v2.

Absorb matching enemy fire, unleash devastating burst attacks, and survive escalating waves of neon arcade chaos in this fast-paced reactive shooter.

Survive endless waves of escalating enemies in this fast-paced arcade shooter. Dodge overwhelming attacks, master precision movement, and fight to stay alive inside hypnotic neon chaos.

Cosmoscope is a top down twin stick shooter with a twist. The game combines the frantic action of classic space shooters with unique kaleidoscope inspired gameplay. Tasked with defending Humanity against a mysterious alien race, you will need to use both firepower and your quick wits to survive.

In Infinity Blaster you blast through space, defeat challenging enemies and upgrade your weapons! Compete on the global leaderboard, survive an infinite loop of increasingly difficult foes, and unlock 100 achievements. Can you prove yourself as the ultimate space adventurer?

Devileader, a fearsome space demon who once have destroyed countless planets of the solar system is about to be resurrected by his minions and fanatics, who want to bring chaos to the universe. Pilot the agile space interceptor Deviship and survive the terror of this demon lord.

A demanding, run‑based precision brick‑breaker with permadeath, resource management, and 330+ handcrafted levels. Harvest Alchemite and trade strategically between levels. No saves, no retries - just pure skull. Play solo or up to 3‑player local co‑op.

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 retro-inspired 2D space shoot-em-up. Mine asteroids! Shoot alien saucers! Get rich or die flying!

Defend two iconic cities in this horizontal flying combat game with block-by-block destruction physics. Choose from four ships with unique abilities, combine 36 weapon loadouts, and fight through dynamic weather and day-night cycles. Full local co-op. Custom wave builder included.

Blast through enemy defenses in this intense 16-bit shoot ‘em up (or shmup), dismantling interplanetary shields to bring humanity’s last hope back from Mars and save Earth from ecological collapse.