Top similar games like All Systems Operational:

Arcade shoot'em up. Dodge ORBs, destroy them with different weapons and superpowers, pick up bonuses and crystals to improve Chewbrick.

CRAZY APPLIANCES is a fast paced top-down shooter game! The elect robots are insane, heroes! Fight your way by using various weapons and powerful items to defeat them in different dangerous situation!

Early Access Game. An overarching turn based universal / solar system game featuring fleet to fleet combat engagements that also allow players to pilot a superfighter to inflict extra damage and call in fire missions on enemy ships. Roguelite dungeon crawler and 4 player multiplayer to be developed.

A very unique group of farm animals that tired of the abuse of the big chains of fast food decide to oppose them; Armed and trained to fight, our heroes must make their way through every restaurant and fight to stop their evil machinations... or be cooked in the attempt.

Gangs of Space is a massively-multiplayer Rogue Shmup where Gangs of players compete for the conquest of the galaxy.

Waves 2: Notorious is an arcade twin-stick shooter set in Cyberspace. Build Combos, earn Adrenaline and unleash powerful Burst attacks as you Dive into the Net and do battle against an AI that adapts to your weaknesses!

Classic Asteroids® updated with modern gameplay and perfected controls. Explore hazardous environments and sneak around asteroids to surprise attack giant bosses. Upgrade your ship to use additional power-ups. Single player or fight with up to 3 friends with intense local coop.

In the dark depths of space, an unknown threat called Purgatory has begun to consume colonies throughout the cosmos. Now it’s up to Crome, the Consul’s best star pilot, to travel into the unknown and put an end to Purgatory before it overcomes the entire galaxy.

Dominate global leaderboards as you face off against an unrelenting geometric force. Shwip combines twin-stick arcade action with tight controls, insane pixel destruction & devastating weapons & abilities. Evade, outlast and play with style in four game modes over single & local multiplayer.

Help her heart battle tough bosses in this Boss Rush, Bullet-hell with rogue-like elements. Fight through several randomly chosen boss battles leading up to a final battle. Each defeated monster will give her random gifts that power up her heart. Don't let her heart break!

Fight fierce hostile alien space ships to neutralize their defenses before you board their ships and battle intense on-foot encounters. Eliminate their forces and steal their technology to upgrade your squad with different abilities and save the galaxy!

Nova Drift distills the mechanical depth and strategy of an ARPG into classic arcade space combat. Control an endlessly evolving bio-mechanical ship, face legions of strange and deadly foes, and ride the wake of a dying star across the void.

Buckle up for shoot ‘em up chaos in this fast-paced and hyper-stylized roguelite. As the infamous bounty hunter Black Paradox, it’s up to you to travel through space and defeat the Hellraisers – the most dangerous criminal organization in the galaxy.

Blast-off is a hardcore jumper/runner/shmup, where your alter ego will be a ball of anti-matter seeking to leave our Universe. Anti-matter is extremely difficult to exist in our universe, because when it contact with matter it annihilates.

Hovership Havoc is a sci-fi twin stick shooter with 3rd person boss battles. Blast through rooms of a futuristic robotic factory filled with robot enemies. Equip your Hovership with randomly dropped abilities and upgrade your stats during each playthrough.

Cosmonator is an 'RPG-em-up': a hybrid of classic fast-paced top-down shoot-em-up action infused with deep character building elements. Build up your own unique alien-killing machine to avenge the destruction of planet Earth!

Blasters of the Universe is the first of its kind, bringing the bullet hell genre into first person VR. Intense gameplay is heavily reliant on physical movement, requiring the player to duck, dodge, twist, turn, and maneuver their way through tons of enemies and hundreds of bullets.

Zotrix is a modern take on the classic arcade shooter. The game introduces resource trading economy and system of upgrades between number of space stations bringing the classic experience into modern generation. Aliens are attacking and Solar Division Command needs You!

Zone of Lacryma is a story driven vertical shmup with 11 levels, highscores, speedrunning, upgrades and more.

Rick Henderson is an endless horizontal-scrolling shoot 'em up with infinite replayability, a true homage to 16-bit shooters wrapped in graphics we all loved. Twitch your fingers through five enemy factions and their bosses, upgrade your ship and try to survive through unpredictable space events.

Jets'n'Guns 2 is a side-scrolling space shooter with insane levels of action and destruction. Travel the galaxies and unleash an arsenal of the deadliest weapons and devices to save the universe from its inevitable doom.

A fast paced action shooter inspired by the arcade classic Super Pang! Use a wide selection of weapons and powerups to tear through increasingly challenging levels.

Planetary Dustoff is a space-themed roguelite shooter. Go on a death riddled journey to sprawling alien environments and fight your way through hordes of enemies and epic boss battles. Take part in the revived Planetary Survey Program and help the Space Faction find a new home for humanity.

Take control of a cyberdragon and annihilate swarms of rocket propelled chainsaws either online or via LAN in this high speed, high skill 8 player co-op twinstick shooter.

SUPERVERSE is a fast-paced, action-packed, space shooter game. This electrifying arcade transports the player to an ancient network of interconnected universes, to find a way to return to the past and prevent the extinction of humanity.

Razor2: Hidden Skies Razor2: Hidden Skies is a top view shooter. The game has the style of successful classic arcade games, while using the latest technology to create great visuals and effects. An old-school game with all new technology.

Reload for more shooting action with GundeadliGne, the 2nd title in the Gundemonium Collection

A super fast, twin analogue shooter for the modern age!

Scoregasm is an incredible, variety rich shooter with a non-linear, branching paths style galaxy to explore. It's pretty, accessible, fun and really rather good! Blast your way through the galaxy's many varied levels and use your skills to change your route, find new levels, new enemies, unlock bonus challenge stages and fight the bosses...

Sine Mora is a horizontal shoot'em up that provides a unique take on challenge, where time is the ultimate factor.

The skies will be set aflame and the seas will overflow with wreckage in Vlambeer’s stylish arcade shooter LUFTRAUSERS! Select from over 125 combinations of weapons, bodies, and propulsion systems and take to the skies to battle enemy fighter planes, battleships, submarines, and rival aces for glory, honor, and high scores.

Killing zombies never gets old, but sometimes you just need a break. Get back to some serious old-school gaming with Syder Arcade! Syder Arcade is a love letter to Amiga games of the ‘90s, no coins, no upgrade grinding, just your tenacity and a motherload of alien invaders.