Top similar games like All Systems Operational:

Shoot! Dodge! and... Get Hit!? "Ikaruga" is a vertical shoot 'em up that features an unique polarity-switching gameplay. Switch the ship's polarity and "get hit and absorb" enemy bullets! Achieve High Score with the chain bonus!

Sine Mora EX is a side-scrolling shoot'em up that provides a unique challenge, where time is the ultimate factor. Mixing classic shooter sensibilities with contemporary presentation, Sine Mora EX is a gorgeous shoot'em up offering both a Story Mode that weaves an excessive tale and an Arcade Mode.

Carefully designed, beautifully remastered, and loaded with new ways to play—Risk of Rain is back and better than ever! Dive into the iconic roguelike full of unique loot combinations, enhanced with new Survivors, overhauled multiplayer, fan favorite content from Risk of Rain 2, and more!

A shoot'em'up game for up to 4 players that combines advanced RPG advancement elements with pure space shooter action, 20 unlockable weapons & 4 heroes with varied strengths in their 10 primary stats, along with each ship's 10 aspects, add a huge variety of choices for all gamers.

Equip your battleship's guns, install faster engines, and increase the power of your reactor. Throw a barrage of rockets on hordes of enemy ships, burning everything in your path!

Dive into 'Eternal Reverie,' a team-based roguelike shooter exploring the mysteries of an eternal war. Solo or in co-op, navigate diverse planets, pilot unique ships, and customize with 80+ upgrades. Unveil secrets on branching paths to increase your roster and discover the truths of the universe

ZombCube is a first-person, cross-platform, zombie survival, wave based game. Play solo or with friends all over the world destroying the evil ZombCube's. Use teamwork, leadership, and skills to be the best and rank on the leaderboards.

DARIUSBURST Chronicle Saviours is the latest installment in Taito's DARIUS series of arcade-style shooting games. Blast hordes of alien sea-monsters, and blaze your own trail through branching environments.

An arcade shoot'em up with unique power-infusion gameplay. Face down an unknown army alone or with a friend in online or local co-op. Navigate the cosmos to save the remants of humanity, or join them in extinction!

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.

Command destructive spaceships to obliterate hordes of enemy vessels, while quickly solving puzzles to weave through networks of vibrantly colorful, adversarial machines!

Choose your ship and command it against an army pitted against you in this wave-based arcade-style bullet hell space shooter. Fight for as long as you can with powerups acquired through the catalog, and blast through everything in your path.

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.

Battle for survival against endless alien hordes with your friends! The Anacrusis is a first-person shooter that dynamically adjusts difficulty to you. Experience intense 1-4 player co-op action or play as the aliens and stop your friends in 1-8 player Versus mode. Full Steam Workshop support!

Building on the legacy of R-Type Dimensions and R-Type Dimensions EX, Dimensions III has been completely re-envisioned with cutting-edge visuals and sounds, expanded gameplay modes, and a range of new features designed to deliver the most definitive modern edition of R-Type’s classic era. 

A retro shooter with a new power: the power to become any ship.Lost in the depths of space, you are a being of pure psychic energy with the uncanny power to take over and control anything you see in order to survive.Built for PC, Enemy Mind lets you battle your way through 70+ waves of challenging enemies.

1-2 players, game controller support. NO in-app purchases. Over 45 minutes of music! 13 detailed stages, partly-random, with bosses. Tons of weapons, guards and special moves. Play in a window or in Full Screen.

A two player, co-op horde shooter with a sci-fi, futuristic twist – play as two heroes, a cyborg and a samurai, working together to defend worlds across space and time from invasions of creatures. As levels are explored, upgrade each character’s abilities in order to take on enemies and a boss!

Engage in an intense space shooter that you can play in single-player or multiplayer with up to 6 players. Play a variety of different spaceships, each with their own unique stats, components, and playstyles!

An indie action-RPG where you pilot customizable ships through side-scrolling combat, level up unique characters, and dismantle a corrupt galactic regime one mission at a time.

Space shooters never die. 1993 is a testament to that. 1993 is a classic shoot em up celebrating games like Gradius, R-Type and Life Force.

Sky City, the free-to-play central hub of the AlterVerse, is now in Closed Beta. A new version of Disruption, rebranded as OutPost, and built on Unreal Engine 5 is in the works! Visit alterverse.com for details and early access!

Pawarumi is a modern shoot’em up set in a retro futuristic sci-fi pre-Columbian universe. You’ll take control of the almighty ship Chukaru and its three unique weapons! Shoot wisely to either do double damage, heal yourself or charge your Super Attack!

Farlight Commanders: Prologue is the first mission of an upcoming cooperative sci-fi shoot'em up. Play with friends up to 4. Drive a spaceship where each player has an unique role.

CounterAttack: Uprising is a side scrolling space shooter (shmup). Team up or fight solo, 1 - 4 player local or up to 8 players online cross-platform coop, unlock upgrades, use powerful ultimate abilities, enhance your ship the way you want, and save the Earth from annihilation.

Dodge and encircle your enemies in this neon-drenched revival of the one-of-a-kind arcade classic!

Stardust Galaxy Warriors: Stellar Climax is a fast-paced couch co-op action shooter with SHMUP/Brawler gameplay and RPG elements. Choose your mechs, weapons & upgrades then soar through space, defeat evil & save the future... from itself!

Call your friends and lead your squad through the outer space and protect your planet from asteroids and alien ships on this local shoot'em up. Shoot, evolve e explode these space enemies.

Sky Racket is a game that mixes two classic genres from the Arcade era: Shoot’em up and Brick Breakers. In a world where you are unable to attack, using your racket to strike enemy bullets back at them is your only option! Bounce bullets back at your foes and save the galaxy!

Dive into thrilling team conflicts in an action-packed Hero Shooter incorporating unique MOBA elements. Customize your hero combat style with a singular card system. Control key zones, gather resources, and steal essence from enemy bases to claim victory for your squad. Join The Harvest!

Experience your music collection like never before with this intense music driven arcade shooter. Each of your songs will have its own unique ebb and flow based on the music.

Humanity's only defense against a relentless invading horde is BACK! Squad up or go solo. Collect legendary loot, complete high-risk missions, and create your perfect Defender in this online, co-op, side-scrollin', lootin’-shootin' RPG!

Xenoraid is a vertically scrolling shoot'em up with procedurally driven missions and detailed shooting mechanics. Modern features such as real time fighter switching and squadron management make Xenoraid a fresh and thrilling shooter!

Super Nano Blaster is a shoot-em-up for PC and Mac, offering single-player and local co-op modes, that transports you to a retro-style digital universe. Delve into technology with your vessel and destroy anything that gets in your way!

A cooperative action tower defense and third-person shooter where vision is mutually exclusive. Place towers to shine light on the endless horde of bugs, or use augmented vision to fight alongside defenses. Equip powerful modules that unleash your strategy's true potential!