Top similar games like Alien War One:

Space Ace is a 2D top-down shooter that focuses on upgrading your ship to fight through levels of Bosses and smaller enemies. Play with keyboard + mouse or Xbox controller.

Cards and Guns is a top-down arena shooter roguelite, where you’ll have to defeat hordes of creatures. Choose from a variety of cards and upgrades to create unique builds and survive to the end.

Blast through interconnected floors of a massive starship to reach the Archon’s Cube. Explore branching sectors, grab new weapons, stack upgrades, and fight otherworldly threats as you race to escape.

Xeno Crisis is an arena shooter in which up to two players take control of battle-hardened marines embarking on a deadly mission to confront an alien menace! Run and gun your way through thousands of adversaries, searching for survivors, and ultimately facing the origin of the outpost's demise.

You are a circle in a sharp world. Fight jagged enemies in a neon twin-stick bullet-hell roguelite, build devastating ability combos, and grow from fragile to unstoppable through shifting neon labyrinths.

"Epsilon Zero" is a fast-paced top-down action roguelike shooter where every mission is an all-out assault. Use devastating weapon combinations, unlock powerful upgrades, adapt your tactics, and exterminate everything standing in your way.

A sci-fi wave-based roguelite where you play as a rogue janitor in an overrun space facility. Fight through hordes of alien creatures, and find powerful upgrades to augment your abilities. In death, piece together your memories, and come back stronger. A grand reward awaits you in the Abyss...

Crush, smash, and eat thousands of enemies showing humanity what the meaning of destruction is! Kaiju Catastrophe is an arcade game with roguelite mechanics. Mutate devastating weapons, unlock permanent evolutions, and wreak havoc with a variety of monsters to tear humanity apart!

A top-down voxel bullet-hell roguelite. Freeze bullets in mid-air with Stasis, socket rare support gems, and blast through 50 procedurally generated floors as enemies shatter into thousands of flying voxels.

Get aboard the Ghost Train and fight with 99 lives worth of hardship to forge your own destiny with the unnatural grasp of KalshwK Desert : Top-Down 2d Roguelite Shooter

---Red---Tether--> is an action-packed “combat-puzzle” roguelite. You will tear apart massive space fleets, using nothing but your advanced tether harpoons. Pull and crash ships into another, rip their components off, then grapple-swing your way out of danger.

Beyond Lost Planets is an intense Roguelike Dungeon Crawler Bullet Hell. Fight through enemies and bosses across procedural worlds. Everything from weapons and bullets to powerup and companions is represented with cards. Grow absurdly powerful and create wild, unique synergies every run!

Irradiant Skies is an arcade roguelite blending brick-breaking and bullet-parrying combat. Reflect enemy attacks, chain powerful upgrades, and master unique ships as you ascend through waves of enemies.

Fight through hordes of burnt CDs, flying TVs, and faceless suits in this frantic, run-based, twin-stick shooter. Forget firing bullets, though - you'll be flinging vinyl records, throwing drumsticks and swinging guitars to fend off the enemies of music and maybe, just maybe, survive the night.

Paranoid is Dungeoncrawler/Roguelike with an oldschool pixelartstyle where you need to survive alone in the dark and discover new items and pills that help you through this dangerous World. Can you find a way out and wake up?

Destroy hordes of strange machines that have invaded the forest. Yawnoc is a chaotic top-down shooter roguelite focused on immersion into the world of Conway's Game of Life and other cellular automata.

Microbes and Machines is a roguelite action game where you control a little bubble robot that fights against the forces of evil.

Rejected as heir after losing your will, you must survive on an abandoned amusement-park planet. Gather ingredients, craft food-guns, shoot, eat, and grow stronger to reclaim your lost legacy.

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

Physics-Based Ragdoll Roguelike up to 4 players with Endless action to survive > Get items and discover powerful transformations to increase your power to survive the invading alien horde and save indie games.

A flight-combat roguelite inside a strange old computer. Choose your route through a hostile network, raid its defenses, and bring your earnings home. Master three flight modes in one run, then buy hardware upgrades through underground bulletin boards.

Become a force of destruction in this intense twin-stick shooter! As a hired mercenary, you're tasked to defend an outpost against increasingly dangerous waves of gloops. Collect tons of items, find creative synergies, create ridiculously powerful builds, and survive until reinforcements arrive!

Retro pixel-art top-down space shooter. Battle waves of alien invaders across world landmarks, upgrade your ship, collect power-ups, tackle events & missions, defeat epic bosses, and chase high scores.

Danger Gazers is a post-apocalyptic roguelite top-down shooter where you pave your own path. The choices you make will decide your fate, it will either turn you into the new ruler or... the ashes to be windswept away.

GUNFIELD – A game that combines the genres: shoot 'em up, roguelite. Choose the perfect weapon combinations and upgrade your ship to destroy hordes of enemies and giant bosses, using strategy and a powerful arsenal.

Rocket Rats is a survivors-like game where you defeat cheese-based astral bodies in space – as a rat! Clear waves of enemies, collect cheese, upgrade your gear, and conquer the moon!

Gunnat is an action roguelite that casts the player as a soul condemned to purgatory. Armed with only a revolver, explore an ever-changing landscape in search of an exit while battling demons and familiar souls.

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

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

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

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.

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.

Burning Skies is a frantic roguelite bullet hell. Join the resistance and assemble the ultimate warjet, shoot take down giant bosses and avoid many dangers to destroy the tyrants who are ruling the world.

Pilot an agile starfighter to tear down alien megastructures under fire, then pull off a high-stakes heist from within before everything explodes. When you die time rewinds, sending you back to Moonbase Alpha - your hub for reinvention. Spend your bounty on epic upgrades, ready for the next run.