Top similar games like Starboost EX:
Starboost EX $6.99
Fly in space like Ironman with 30+ missions to play & deploy your own turrets & monsters into the battlefield. A story driven Sci-fi adventure game.
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Flying Tigers: Shadows Over China$14.99
FLYING TIGERS: SHADOWS OVER CHINA is an air-combat action game based on the historical events of America’s secret volunteer squadrons that defended China against Japan in the China-Burma-India theatre of World War 2.
Silverwing$4.99
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.
Everreach: Project Eden$24.99
Take on the role of Nora Harwood, member of Everreach’s Security Division, on a mission to secure the colonization process of Eden and investigate mysterious incidents! Everreach: Project Eden is a fast-paced, story-driven action-RPG set on the visually stunning Planet Eden.
Space Battle VR$9.99
Space Battle VR is an action shooter set in space. It supports VR controllers to give you a real feel how it is to be a spaceship pilot. You can truly feel the cosmos with this game. Jump into an awesome adventure, help mankind, win a war, bring freedom and happiness to the universe. People need you!
Redout: Space Assault$9.99
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.
Space Mercs$0.99
Space Mercs is an extreme arcade space combat game where the amount of projectiles and lasers on-screen is only toppled by the amount of stars in the universe! Will you be able to complete all the mercenary missions and become the best pilot in the Galaxy?
Subdivision Infinity DX$14.99
Subdivision Infinity is an immersive and pulse pounding sci-fi space shooter featuring stunning graphics and tight spaceship game play. Hunt down and destroy enemy spacecraft, crush capital ships, mine asteroids for rare minerals, and find blueprints to craft amazing new vessels!
Abda Redeemer: Space alien invasion$9.99
Our brave hero Abda lost his father. After his death, he remained the only one of his kind. Everyone he loved died. After the funeral, he inherited his father's old starship. After fixing the flying saucer he had inherited, Abda got ready to go. Thus began the story of Abda Redeemer.
Windfolk: Sky is just the Beginning$12.99
Explore the skies of Eurian and help Esen to defeat the evil coalition in Windfolk: Sky is just the Beginning, a third-person shooter adventure game.
Galaxy on Fire 2™ Full HD$7.99
A hyperdrive malfunction sends Keith T. Maxwell tumbling through space and time to fight for his life against a mysterious alien armada that is wreaking havoc.
Aero Striker - World Invasion$14.99
Aero Striker is a highly stylized action-packed flight combat simulator game that is intentionally designed to be easy to make it more enjoyable and less nerve-racking. The aim is to have fun making aliens explode while experiencing the sensation of flying. Let none of the evil aliens escape!
All Of ZHEM$3.99
Face against waves of 200 zombies with nowhere to run or hide.
Strike Suit Zero$19.99
Immerse yourself in massive fleet battles where your dog-fighting skills will directly affect the fate of the cosmos.
Deliver Us The Moon$24.99
Deliver Us The Moon is a Sci-Fi thriller set in an apocalyptic near future, where Earth's natural resources are depleted. A lone astronaut is sent to the moon on a critical mission to save humanity from extinction.
Starlight$9.99
Ignite the imagination on the edge of the Galaxy. Discover alien landscapes and exotic alien lifeforms on a mission, millions of light-years from Earth, Play as an android sent from Earth to explore the Universe. Craft! Explore! Uncover the mystery of our origins in the Universe.
Fate of the World$9.99
Fate of the World is a dramatic global strategy game that puts all our futures in your hands. The game features a dramatic set of scenarios based on the latest science covering the next two centuries. You must manage a balancing act of protecting the Earth’s resources and climate versus the needs of an ever-growing world population, who...
UNSTABLE$2.99
UNSTABLE is a 3D action runner with spaceship flight simulation. Handle unique keyboard controls to avoid asteroids! Disintegrate obstacles with a plasma laser weapon! Beat Leaderboard! And get to the mysterious unknown! Will you master the chaos of an unstable spaceship?
HARD BULLET$19.99
HARD BULLET is a physics-based action game, where enemies flood the neon-lit city bringing destruction to its streets. Use slow-motion, a huge arsenal, and brutal combat to survive and unlock new weapons. Prepare for the next RIDE by mastering your skills in Sandbox and Arena modes.
Stardiver$14.99
Descend into the depths of an underwater world filled with wonder, mysteries, and peril. Fight to survive among unknown, dangerous species. Discover the story behind the abandoned base. Explore this submerged world and learn its history.
Star Fighter$0.99
Start Fighter is an arcade game about the battle of spaceships. Explore the space station, shoot down enemy ships with heavy laser cannons, and control a maneuverable battle starship or a giant cruiser.
Rebel Galaxy$19.99
Rebel Galaxy is a swashbuckling space adventure, with action-packed combat, exploration, discovery, trade, and “negotiation” with the outlandish denizens at the edge of the known universe.
NIGHTSTAR$9.99
This VR title is a unique room-scale third-person shooter. Control the Nightstar by moving your Motion Controller in space, shooting a vast variety of enemies, and avoiding obstacles and enemy fire. Play through 8 levels of non-stop action and immortalize your name on the global leaderboard!
OSIRIS$3.99
Dark history about OSIRIS corporation, which performs experiments in the field of teleportation of human souls to the Heaven on the artificial planet G6. Inspired by Deep Dark Dubstep music.
Ariel$5.99
Intense survival experience based on a Sci-Fi, space terror script. Unravel the story of Ferdinand Ludec as he attempts to escape his fortune. Partially procedural world along with different endings to the story. Hunger, avoiding insanity and extreme weather will only be some of the threats to face.
Arc Savior$14.99
Discover a beautiful and brutal universe through three immersive stories. Champion blazing fast dog-fights, Out wit aggressive defense systems and overcome constant overwhelming odds. This is your goal, this is your duty, this is your way of life...
Cover Sky$0.99
Robots launched an attack on humans! You must stop them! "Cover Sky" is a fast-paced (small map) single-player shooting game that can switch between first and third person perspective at any time. It features fast start, end in fifteen minutes, customizable AI count(20 , 30, 40), dynamic environment, and multiple weapons.
2099 Gravity HavocFREE
Shoot at enemies in a WEIGHTLESS space station to save yourself from burning alive in the atmosphere!
Orbital Invaders$0.99
3D Sci-Fi arcade Shoot'em up game. Destroy asteroids and aliens. Shoot them all!3D arena shooter with multiple worlds. Spaceship simulator and shmup arcade style game.
Inertia ball$0.99
This is an unusual adventure future simulation space game, in different gravity under your operation will also change. Players can feel the vastness of different planets in the game, feel different gravity, feel their own different operations. Conquer the universe!
Gabe Newell Simulator$2.99
In Gabe Newell Simulator you can manage Steam releasing and creating new games and also in the story mode you can play as Gaben and help him in his fight against other software house, talk with his employees and decide the fate of Half Life 3!
Potentia$19.99
Third person shooter action adventure game with post-apocalyptic theme. Witness the adventures of Victor and his friends in this abandoned world.
Dinosis Survival$4.99
Dinosis Survival is a TPP Shooter with dinosaurs based on a mysterious story. Survive, hunt and solve the mystery behind the world that is falling apart.
Somewhere on Zibylon$9.99
The game is filled to the brim with the atmosphere of cold space and zero gravity, features unusual game mechanics with a lot of puzzles, exploration, stealth, resource extraction, crafting, fights with alien forces and seizing space stations!
Earth Analog$24.99
In this space flight adventure game you take control of exploration vessel Eurisko XI on a quest through deep space. Visit fascinating fractal-based exoplanets and solve their mysteries. Fly through dangerous landscapes. Collect artifacts to unlock new pathways. Your goal: find our new home.
SPACE EXODUS$5.99
Rise and shine, pilot. In Space EXODUS you take control of various gliders to defeat your enemies. Pirates from all parts of space are attacking our earth and you are our last chance to stop them. So rise to the challenge. Gameplay Fight with agile gliders and a variety of weapons.
Space Crisis$7.99
A spaceship crash landed on Mars! You have to wear a jet and fight!
SIDE$14.99
SIDE - sci-fi roguelite game in which the player will take on the role of one of the survivors in the vastness of cosmic dust and shipwrecks left over from the last galactic war of the remnants of humanity.
The Assailant's Arrival$0.99
Alternative Universe Game/Sci-Fi Game
Cosmotroid$7.99
Escape from the asteroid X-474 which has been invaded by aliens. Take your weapons and destroy every enemy who tries to stop you in this amazing arcade style third person shooter game full of action, creatures and explosions.
Blood Engine$11.99
Blood Engine: Immerse yourself in an action-packed third-person open-world experience. Race against time to thwart the relentless Red Swarm. Will you emerge victorious, or succumb to the biomechanical onslaught? The fate of humanity rests in your hands.
Year3055$11.99
We're in 3055, where AI robots have taken over the world. How will the hero solve this issue?
SIGNALIS$19.99
A classic survival horror experience set in a dystopian future where humanity has uncovered a dark secret. Unravel a cosmic mystery, escape terrifying creatures, and scavenge an off-world government facility as Elster, a technician Replika searching for her lost dreams.
Space Dogfight$0.99
"Space Dogfight" is a single-player fast-paced flying shooting game that can be played with a mouse (does not support gamepad). In 15 minutes, players need to drive a spaceship to fight enemies on a randomly generated space battlefield. The game can be customized The number of AI.
Outbreak 2030$5.99
2030, The year Russia decided to end the war with a powerful weapon, as they claimed. Shortly after using that weapon, Russia went dark. Ceasing all communications and locking its border. That's when The U.S. sent a task force for infiltration and reconnaissance. To find out what went wrong.
Asteroids Belt: Try to Survive!$0.99
Asteroids Belt is an arcade game where you have to fly through the asteroid belt in a spaceship, destroying them along the way.