Top similar games like Asteroid Sentinel:

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.

Help Haru defeat the armada of the astral void in a fast-paced roguelite retro space shooter.

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

Survive in the deep void of the galaxy against thousands of invaders! Nebula is a challenging bullet hell, twin stick shooter where you have to face endless waves of space enemies. Additional map resources and space drones can provide you a support but be wary, they can as well become a deadly trap.

Starwave Defender is an intense twin-stick shooter based around wave survival. Dodge swarms of enemies while exploring procedurally generated levels and collecting resources to upgrade your ship. You have a limited number of ships; make your time count, Defender.

Dodge, collect, and survive. Every piece of salvage you grab makes your ship deadlier and tougher.

Asteroids are headed directly towards Earth. Destroy asteroids before they can slam into Earth. Earn medallions to purchase ship upgrades to help in the fight to save Earth.

Become an agent of vengeance in this bullet-heaven action roguelite! You are the lone survivor of your squad, on an alien planet with just your weapon, a jetpack, and the courage to keep fighting. Kill off alien swarms and transform their valuable guts into explosive upgrades and vital utilities.

A sci-fi twin stick shooter stripped down to the bare essentials with focus on smooth controls and satisfying action.

Fast top-down space shooter with varied missions, relentless enemies, powerful ship upgrades, and most importantly, fire.

In Deadline: Aphelion, you play as a mercenary tasked with defending the research facility from the hordes of alien spiders that have been drawn to it. 

Impact Trial: First Encounter is a exciting mix of bullet hell and narrative adventure in a retro sci-fi world. Face waves of enemies, make story-affecting decisions, challenge yourself with various difficulty levels... and more secrets. ¡Your story, Your choices!

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.

PhaigeX is a fast-paced "Bullet Heaven" space shooter, tasking the player to explore space sectors and contain a rising incursion of rogue AI-controlled units. Pilot a variety of ships, call in the support craft, and use a myriad of upgrades to lay down heavy firepower towards the enemy forces.

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.

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.

Repel extraterrestrial entities!

Cheftastic!: Buffet Blast is a new exciting top-down arcade shooter! Take back the Isle of Verdura from swarms of mutant vegetables and climb your way to the top of the leaderboard!

Blast through waves of alien enemies in Project AionIX! Master your piloting skills, dodge, and survive in this fast-paced space shooter!

A modern tribute to arcade legends! This shoot'em up arcade game revives the classics after 45 years with fresh graphics and innovative gameplay. Become a part of Space Ranges Inc. Join now! Get the high score!

Core Breach is a fast-paced, twin-stick arcade shooter in a pixel art style. Play as a Trojan worm virus, outmaneuvering and destroying antivirus enemies. Upgrade your worm with powerful attacks and skills as you fight to breach the CPU core and uncover its secrets

Outnumbered is a mass-enemy top-down shooter with rogue-lite elements. You may be greatly outnumbered, but not outpowered. Evolve into the ultimate weapon of destruction!

A fast-paced, top down movement shooter. A drifter must master the art of drifting, the nature of the enemy and the rhythm of attack and defence. Only then can a drifter become The Astrodrifter.

AGIS - A Game In Space is a top-down twin-stick-shooter.

Void Vikings is an arcade style top down space shooter where intense action is the focus and choosing the right education could pay off. Smartly manage your Space Bucks in order to destroy your student loans before you die. If you succeed your score could sing your praises through all of Valhalla.

Can "Super Meteor" save the universe from the space debris created by the development of space by the people of Earth?

HYPERDRIVE is a fast paced Sci-fi action flight sim, combining the infinitely looping gameplay of a roguelike, along with the combat and controls of classic spaceship combat. Avoid obstacles, and take down enemy ships in high speed space combat, all while making as many deliveries as possible!

Consume the civilization of the fools who unleashed you upon the universe. Become the Empire Ender.

This roguelike spaceshooter pits waves of enemies against you in your pursuit to reach the end of the galaxy. Improve your ship with permanent upgrades and select temporary upgrades during a run to pursue achievements and and kill bosses.

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!

Beat Invaders is a Vertical Shoot 'Em Up Roguelite - Fight your way through enemy fleets, unlock skills, items, ships, and upgrade them in the next run. Enjoy the smooth neon visuals matching the pushing EDM soundtrack - The perfect game to unwind.

Drifting in Space is an action Rogue-lite for those with a love for difficult games. Inspired by the uncertainty of space itself along with all the movies, literature and games that accompany it. Enjoy crossing this dark and dangerous rendition of the cosmos.

Systems are down and require time to repair, leaving you with a basic gunship with no hopes of escaping an aggressive asteroid event. Will you be able to survive the increasingly difficult 8 minutes to repair the ship's functions and escape? Also discover a variety of genres, all in one game!

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

Sagittarius is a classic side scrolling space shoot'em up in a modern take. In this epic space game it's up to you to save our solar system from destruction. Fly alone or with a friend in a local multiplayer co-op game.

A fleet to defeat, a weapon to collect, and one life to decide everything in the roguelike shooter No Space For All. Let the universe know your second name!