Top similar games like Red Siren: Space Defense:

In this science fiction action shooter you are St. Karen a Soldier Of Light in the year 3000 tasked with a mission of destroying remnant robot AI forces and strongholds.

We are trying to complete the tasks given to us with our robot. While completing our missions, we need to destroy many enemies and bosses. 3 different weapons we have and using different strategies, we can destroy the enemies.

Oh! Robot is a top-down shooting game featuring the catchphrase 'NEVER GIVE UP! NEVER SURRENDER!' It follows the journey of a brave young girl who pilots a robot named ZeroBot to save the world from rampaging machines driven mad by a rogue AI. Engine start let’s go!

Become humanity's last hope. Gear up, upgrade, and unleash hell in a relentless third-person sci-fi shooter against a ruthless robotic army. The future is yours to forge in fire and steel.

Control your enemies. PARASITE is a fast-paced, third person shooter where you use your enemies as weapons. Fast-jump between foes during combat and upgrade your sync with them to level their abilities. Escape and destroy the ruling AI.

"You're the best warrior in your planet. Now your race want to conquert everything, and you're the only one to stop them."

Bring In Your Bounty, Dead or Alive

Fight against rebel robots together with your friends and save planets from invasion....

Aphelion Headhunters is a Third-Person PVE Hero Shooter featuring two unique player characters, each with their own distinct playstyle, abilities and suite of selectable upgrades.

Twin Stick Shooter Multiplayer Action Game set in small planets that can be terraformed as you play! in which not only your shoots, but also the enemies and planet environment are your weapon!

Shoot at enemies in a WEIGHTLESS space station to save yourself from burning alive in the atmosphere!

Enjoy Battle Bot Style Of Robot Fighting In Wide Battle Arena!

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.

Tactical drone combat against infantry, armor, and air defenses. Control advanced drones, strike high-value targets, and dominate the battlefield from anywhere, your call. War is no longer fought on the ground. Operate combat drones, destroy high-value targets, and survive hostile airspace.

Cyber Heart is a single-player, story-driven mech shooter where you, a commander, ride your customizable mech through an open world to fight against enemy AI machines.

A fun little space shooter inspired by the 1979 classic Asteroids.

Aliens have invaded for Earth's resources. They dominated nature and made them attack mankind. Humanity on the verge of extinction has gathered the last of its strength and developed a superconducting hovertank that can stand against them. Now our counterattack begins.

Small game in Tower Defence genre with elements of shooter. Kill Replicators all by yourself or make perfect defence with different turrets.

AI Uprising is a fast-paced 3D third-person shooter inside a futuristic spaceship under siege by waves of rogue AI machines. You are humanity’s last line of defense, armed, outnumbered, and standing between charging mechanical AIs and the fragile energy barrier protecting what’s left of your crew.

Edge of Infinity is a third-person space shooter with squad command and immersive-sim ship combat. Board or dogfight, sabotage subsystems to reshape the battle. Hot-swap into squadmates on death and turn massive capital ships into living sandboxes.

A Sci-fi adventure in an abandoned facility. Use futuristic weapons and abilities to destroy bots.

Experience Ever increasing difficulty level as you progress through this third person shooter.

Here is the ultimate, third-person bullet hell game. Help save the universe and humanity by blasting away a wide array of villains that are trying to take over multiple dimensions.

Become a master MI6 saboteur, and earn your name as the ministry's most important asset on the Moon in this 1st-person shooter VR sci-fi epic! Follow the orders of your handler, or explore and find new weapons and defenses! Do whatever it takes to complete your mission!

Stellar Ghosts Settlers is a Sci Fi Fantasy 3rd person action shooter game. Chose amongst 6 of the playable characters to go through the missions or the arenas. Kill as many enemies as you can to earn even more credits to update your favorite character(s).

BomberHero is a thrilling multiplayer game inspired by Bomberman. Up to 4 players can join online battles or play against bots. Customize your hero, collect power-ups, and dominate diverse arenas. Are you ready for explosive fun? Join the action on Steam!

In EAcity, the DICE gang rebelled against large corporations, sparking a series of clashes between the two sides. The city descended into chaos. In an attempt to end the conflict, two gang members, K-12 and Z4, were kidnapped by Actavision corp and forced to sabotage DICE headquarters.

The cult game that marked MercurySteam's origins returns; a sci-fi adventure with memorable characters, powerful ships and humor! Enjoy intense Multiplayer battles and races with ships you build.

Shoot vehicles, blow enemies with a special attack, protect your allies and ensure mission success!

Redout: Space Assault is arcade space battle, coupling the trademark Redout adrenaline with the thrill of combat. Outsmart, outmaneuver, overpower, outclass your opponents in lightning-fast, adrenaline-inducing single-player space combat.