Top similar games like ShootOut(SystemD):

Traverse 'The Arc' in this beautiful, Cyberpunk-styled action rogue-lite as you attempt to reset an evil rogue AI. Experiment with different weapons and augments as you fight hordes of machines programmed for your annihilation! Collect Nanites & power-up after every run either solo or with friends!

Join Uzay on a rescue mission in Breath of Space, a breathtaking third-person shooter rogue-lite/roguelike. Fight your way through an invaded space facility alongside your companion droid, who carries your life essence. Choose to risk your droid to help you or face even greater challenges alone.

Mankind's Last Stand is an epic off-world 3rd-person shooter. Take command of the mighty Decimator, customize and upgrade its weapons to crush alien invaders. Prepare for intense boss fights, stock up on boosters, and reclaim all zones to restore order.

Silverwing is an action flight game where you build an array of powerful spaceships to combat enemies across space and a diverse array of planet landscapes. Play through a fully voiced 20+ mission campaign with multiple endings based on your mission choices.

Engage in intense battles against diverse enemies, leveling up and customizing your character with unique body parts before each adventure. Discover attachments that radically change your playstyle, ensuring every playthrough is exciting and unpredictable.

Action-packed roguelite shooter stacked with hundreds of items, unique quests, monstrous bosses and hordes of enemies. Choose from three unique characters, complete quests and level up after every run!

"SameShadow: Fernando's Journey" is a Third-person ARPG Roguelike that immerses you in a fallen Ukrainian city. Explore the dark mystery that will reshape the world as you "awaken" extraordinary powers of time, matter, and space within you.

B-12 is a tough, third/first-person action-platformer with randomized levels and relentless robots with plasma cannons for hands.

MechNest is a 3D bullet hell shooter developed by a single person. As you progress through the map, which changes with each challenge, collect reinforcement items and defeat powerful enemies with flashy shooting! Combine your skills freely and rampage through the hive of mechs!

Earth is burning. The Reapers have taken over and other civilizations are falling like dominoes. Lead the final fight to save humanity and take back Earth from these terrifying machines, Commander Shepard.

Blast and slash your way across the sky in this action roguelite. Armed with your grappling hook and an array of ingenious weapons and gadgets, contend with a mechanized army in procedurally generated levels.

An endless casual shooter game. where the same level is diffrent. Inspired by 1998 gameplay style.

Soar through the sky islands of Alioth and defeat any foe standing in your way using your piloting skills, unique abilities and powerful weapons. Airhounds is an aerial dogfighting rogue-like focused on fast-paced action!

Oftalmogarden is a fast and chaotic roguelike sci-fi eyeball monster shooting game. Shoot your way through hordes of enemies, collect upgrades, weapons, and gadgets to grow stronger, but accumulate curses over time. Speed is your best ally to survive, the sky is watching and death will not wait.

As Commander Shepard, you lead an elite squad on a heroic, action-packed adventure throughout the galaxy.

A futuristic action rail-shooter! Action packed, and full of quirky character dialogues, unique level designs, fully animated story cutscenes, and challenging boss battles!

The game of survival and construction on the surface of the moon. Learn to build a base on the surface of the moon, maintain survival, explore and discover the secrets inside the moon, and solve abnormal problems.

A 3D Sci-Fi space shooter game where you fight against big flagships and bases to unlock the secrets of the world.

Nightork Adventures - Legacy of Chaos is an arcade shooter game. You fly with a spaceship through procedurally generated caves and fight against evil demons using magic colors. There is a campaign of 30 levels and 5 boss monsters. It also comes with a level editor, so you can create your own levels.

A Sci-fi procedural spaceship exploration game, where you unlock new weapons and abilities as you complete missions and gather bounties. Deploy your advanced tactics mech unity, in this 3rd person shooter game!

Dive straight into Jupiter's atmosphere and take down vast flying fortresses from within in fast-paced, arcade flight combat. Losing your plane is just a setback - return with an upgraded replacement and take back lost territory in Nova Squadron's roguelite campaign.

Prologue to Orange Cast, an atmospheric adventure in a large-scale setting where Soviet and Western science fiction are combined itself. As a humanity’s elite space trooper, you take on a heroic, action-packed adventure throughout the galaxy.

Play the classic STAR WARS™ Battlefront games, online and offline in this definitive collection.

Battle For The Droid Station is a RPG shooting game now available on Steam. Feel the adrenaline as you run and gun down hundreds of rogue mechs and droids causing mayhem on the space station. Take control of your droid character and try to clear the space station from invading droids and robots.

This is an innovative fast-paced third-person shooter game.

人类被人工智能发展后的虚假繁荣所蒙蔽，失去了自我。直到有一天作为主角的你，开始试图摆脱人工智能的束缚，揭露这个世界的真相，并在不断逃离和清除记忆间循环，直至离开这座机械城市，抵达自由的彼岸。

Nightork Adventures - Beyond the Moons of Shadalee is an arcade shooter game. You fly with a spaceship through procedurally generated caves and fight against evil demons using magic colors. There is a campaign of 30 levels and 6 boss monsters. It also comes with a level editor, so you can create your own caves and missions.

Join forces with rebels and their technologies to have a chance to restore freedom in a world that has fallen to the uncontrolled dominance of supreme artificial intelligence.

Parabolus is a 3D space shooter with rocks in it. Kinda like Asteroids, if it took place in a Tron maze and also had a squad of enemies waiting to pounce on you around each corner. Clever thinking and quick reflexes are needed to get through this amazing sci-fi adventure.

Awaken as an unstoppable warrior and battle alongside your friends in this story-driven free-to-play online action game

Explore the sci-fi world of Lost Sector and master the souls-like combat. Defy overwhelming odds to overcome evolving creatures and gradually changing environments in this unforgiving third-person action-roguelike.