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The top results based on the latest update are Squad 51 vs. the Flying Saucers [Score: 1.2], Guinea Pig Gunner [Score: 0.9] and JETBOY [Score: 0.9] The top rated games you can find here are Marvel's Guardians of the Galaxy [SteamPeek Rating: 9.2] ranked #34, Flashback [SteamPeek Rating: 4.9] ranked #6 and Squad 51 vs. the Flying Saucers [SteamPeek Rating: 4.8] ranked #1 Also don't forget to check the newest releases Battle for Ercaton: Robot Uprising [Release date: 2026-01-19] ranked #11, By Grit Alone [Release date: 2025-10-24] ranked #29 and Jet Gunner: Refueled [Release date: 2025-10-13] ranked #14 While it is tempting to play with the newest and the best, there might be some other gems in the results, like Xanthiom Zero [SteamPeek Rating: 4.7] ranked #15, STAR WARS™: Episode I: Jedi Power Battles™ [SteamPeek Rating: 4.5] ranked #23 and Marvel's Guardians of the Galaxy [SteamPeek Rating: 9.2] ranked #34.
Squadron 51 Prologue is free version of Squadron 51. It features 3 levels of entertainment, adding English voiceovers, a never-before-seen boss, and new gadgets for your spaceship to defend Earth from a merciless alien invasion.
UFOs! Aliens! Aircrafts! Resistance! SHOOT 'EM UP! Squad 51 vs. the Flying Saucers is a spaceship shooter with 2D gameplay and 3D environment. Enjoy a smart combination of a fast-paced shooting experience and the 1950's sci-fi movies aesthetic, with live-action cutscenes.
Play as a cyborg guinea pig with a teleporter in this run and gun action platformer. Jump, dash, wall climb, and shoot through 12 action packed stages using a massive arsenal and full 360 degree aiming.
Jetboy is a retro supercharged jetpacking pixel shooter with a pumping metal soundtrack.
Remake to 2016's Legends of the Universe - StarCore, a Metroidvania style Action-Platformer with several abilities, enemies and areas to explore.
Sci-fi 2D shooter platformer combining the control of a human character and an armored vehicle on the surface of a planet filled with robots and immortal local inhabitants
FLASHBACK™, the hit action-adventure game with over 2.2 million units sold, is back!
Space bounty hunter Falco must explore the solar system in search of his ex-girlfriend and destroy the Black Star cult. Collect bounties, upgrade your equipment, explore planets, crack wise & fight aliens in this GZDoom-powered Retro-FPS adventure.
Journey to the center of the planet in Piroot, an open world adventure! Explore and survive as a shipwreck's lonely survivor. What secrets lie at the planet's core, and can you trust the voice leading you there?
Dive into the heart-pounding action as MT Force, an elite government unit racing against time to unravel the mysteries of enigmatic anomalies. Rumors suggest that a mysterious scientist made contact with aliens, and now everything is out of control!
Mika's Battle S is a 2D platform action game based on the story of a warrior who has been commanded to defend Sunshineland territory against the attacks from the enemy soldiers belonging to the Rogho Corporation.
Battle For Ercaton: Robot Uprising is a hardcore, story-driven first-person shooter that throws you into a world of ruthless machines and hidden secrets on the planet Ercaton.
Zagu Espionage is a single player, 2D side-scrolling action-adventure game where the player takes on the role of the main character, Zagu, a spy from the Tracha colony, who is traveling to seven different regions to defeat the Rogan empire.
ZPF is a retro-inspired horizontal shooter for the Sega Genesis/Mega Drive. Blast your way through a cosmic gauntlet of epic boss battles, addictive scoring, and hidden secrets in a thrilling arcade-style adventure through fantasy, sci-fi, and alien-themed worlds.
Jet Gunner is reloaded, remade and refueled for a new explosive 8-bit adventure. Relive the past glory days where VHS was king, phones didn't have screens and you'd have to blow into a cartridge to get your gaming fix.
Play as Captain Grisham, and uncover the secrets of Planet 4-514 in this thrilling prequel to Side Scape!
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Halo: Campaign Evolved is a faithful yet expanded remake of Halo: Combat Evolved’s campaign, rebuilt from the ground up. Play the legendary story with HD visuals, refined controls, up to 4-player online co-op, 3 new missions, and an expanded arsenal of weapons, vehicles, and new enemies.
Tempest Lost is a top-down Co-op Adventure shooter. You play as one of 4 commandos tasked with discovering the truth behind many of the events in Tempest Lost. Join with up to 3 other friends for action packed story told in the Tempest Lost Universe.
Take control of Paradox Patrol Officer Conway and defend the galaxy from reality altering paradoxes, in a genre bending, Sci-Fi action shooter.
Blast your way through a world of deadly robots and monstrous machines in this explosive run-and-gun action platformer inspired by '90s classics!
Xeno Shooter is a action shooter arena game! You play as a space cadet who travels to Andromeda with the mission of defeating the Primordials and thus, achieving a new home for humanity.
A pixel-art platformer adventure game with lots of action and a memorable story.Dive into the depths of planet Anyaroth and free its people from the tyranny of the Queen. Join the Rebellion and fight against the Regime’s mind-control system. The anya civilization needs you!
MindSeize is a 2D Metroidvania game set in a Sci-Fi-universe. Transfer your mind to a robot and rescue your beloved one!
Take back the Theed Royal Palace in this fast and furious lightsaber action game. You will have the power of the Force and your trusty lightsaber to help you ward off legions of battle droids, destroyer droids, assassins, and other creatures from Star Wars: The Phantom Menace.
An unparalleled alien invasion has overwhelmed the Mining Block Facility on the moon Triton, leaving only death and horror in its wake. You are a mercenary known as Operator8 and you alone have been called in to bring a stop to this fierce attack. Destroy the hive mind at all costs!
Mama Die and Retry is an old school action platformer that offers a challenging experience through 26 levels and 4 bosses. Fight with a working class hero and discover new horizons filled with a lot of aliens and threats. Use your broom against them. Each time you die, you will retry.
Dal R’El and Gwyndala race against time to save their friends, their ship, new alien species and an entire planetary system before a supernova destroys them all, while battling a deadly new enemy that will stop at nothing to destroy the Protostar and change the very course of history!
So you know that one rover that landed on Mars? Yeah this isn't that.
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Super Artificial Intelligence PSIKE is a 2D platformer Action game. The Epic story is about an A.I who want to be a human and a man who does not want A.I . Speedy Action part, cool visual novel part and cinematic cut scene will take you to a future world.
Cosmic VR Action Horror focusing on intense shooter action, twisted sci-fi anthology stories and disturbing atmospheric dread. You’re marooned alone in the Bermuda triangle of space, filled with ancient derelicts and ravenous aliens: By Grit Alone, you will survive.
Bill's adventure: Alien war is a 2D platform game with shooting elements in which you'll fight to end an interplanetary war between robots and aliens in a futuristic world where humans have gone extinct.
Take the role of Agent Blair as she fights her way through Zombies, Cultists and Giant Snakes to uncover the truth about the Mother Stone. Battle challenging bosses, Collect useful power-ups to give Agent Blair an edge over the unknown monsters that plague The Thurston House.
RABBAT is a physics-based, 2.5D platformer. Play as a small robot, using a jetpack and defeating enemies. Collect scrap to customize the robot’s parts, listen to radio songs while you explore the diverse environments, meet other robots, defeat enemies, bosses, and two extra minigames to enjoy!
Explore and uncover the mystery of this enormous spaceship by shooting alien creatures in this Sci-Fi Action/Adventure Metroidvania.
Fire up a wild ride across the cosmos with a fresh take on Marvel’s Guardians of the Galaxy. In this action-adventure game, you are Star-Lord leading the unpredictable Guardians from one explosion of chaos to the next. You got this. Probably.
Space is dark and full of terror... and raw resources! Mine asteroids, upgrade your equipment and blast cosmic aliens.
Way In The Stars is a real adventure! Find the reasons for the disaster, save the ecosystem of the planet and colonists, and start your own way amongst the stars!
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