Top similar games like Sisyphus Paradox:
Sisyphus Paradox $8.99
Sisyphus Paradox is a fusion of roguelike tactical elements with classic side-scrolling shoot 'em up gameplay. Explore and fight your way across the galaxy as you try to get back home to Earth in this hand drawn indie game.
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Gunslugs 3:Rogue Tactics$14.99
Sneak around the enemy camps, complete your missions and try to survive in the always changing levels, missions and environments in this rogue-like stealth-action game.

Alien Decimation$1.99
Destroy waves of UFOs in a arcade style space shooter with an array of powerful weaponry.

Celtreos$14.99
1-2 players, game controller support. NO in-app purchases. Over 45 minutes of music! 13 detailed stages, partly-random, with bosses. Tons of weapons, guards and special moves. Play in a window or in Full Screen.

Survivor Mercs$7.99
Lead your squad of Mercs against M.E.G.A. Corp.'s evil robot army. Fast-paced twin-stick action, frantic horde survival, tactical squad-building & lots of loot! Exploit game-breaking synergies and beat the evil billionaire bosses in ever-changing operations. Lock, load, and loot, Commander!

Slime KnightFREE
Use an extendable slime arm to “dissolve”, punch, grab, and throw enemies in order to save your slime brethren and navigate through the decrepit insides of an ancient Worm in this top-down hoard battler.

Whisker Squadron: Survivor$19.99
A smooth roguelite shooter from the creators of RACE THE SUN, featuring a voiced cast of feline pilots in a dramatic showdown against corporate-powered robots called The Swarm. Features a 3-act campaign with branching paths, epic bosses, and a wide arsenal of pilots, ships, and weapons.

Further Still: Survivors$3.99
Pick and choose between tons of weapons, spells and equipment to create a build capable of surviving a never-ending horde of monsters. Find a build, break the game and see how far you can take it.

Counterpick LabsFREE
Counterpick Labs is a free platform fighter where you mix and match gear to build your perfect loadout. Featuring a single player story mode, a roguelike PvP mode where you earn powerful upgrades as you fight, and a classic no-frills PvP mode.

Mutant Gate$0.99
After years in cryoprison, Dr. Green awakens on a mutant-infested Earth colony. Seeking redemption and his estranged daughter Anna, he battles through a ravaged planet in a 4-hour campaign of intense combat, encounters, and adventure. Mutant Gate has hybrid tile/ASCII visuals & Steam Deck support.

Asteroids Neon$1.99
Asteroids Neon is more than a mere remake—it's a vibrant reimagining of a beloved classic, designed to evoke the neon-soaked dreams of the '80s with a modern twist. Are you ready to embrace the neon nightmares and conquer the celestial chaos? Bedlam awaits, the galaxy will never be the same.

Lonza the Bounty Hunter$1.99
...take flight as the galaxy's most feared bounty hunter and tear through 45 levels of shmup/bullet hell mayhem... for fans of fast-paced 2D action or anyone looking for a challenge...

Creeping Deck: Pharaoh's Curse$14.99
Creeping Deck is a strategic roguelite deck-builder with RPG elements. Build and refine your deck as you progress through each dungeon, facing off against bosses and enemies. Upgrade, and unlock new skills, options, and artifacts to protect all of Egypt!

Westale: Peelgrimage$4.99
Westale: Peelgrimage is an ink-style survivor-like game. Player can evolve their characters in the game, use marvelous magical treasures, experience the mysterious 72 transformations, and synthesize artifacts. Let's get into this Journey-to-the-West world and experience addictive combat.

Survive the Rift$14.99
Survive the Rift is a rogue-lite shoot 'em up with procedurally generated levels, unlockable ships, and plenty of items to make each run unique. Inspired by classic 16-bit era scrolling shooters with modern rogue-lite game mechanics.

GIGANTIC ARMY$5.99
Side-scrolling mech-shooting bad-assery is BACK!GIGANTIC ARMY is a heartfelt homage to 16-bit era mech shooters such as Cybernator / Assault Suits Valken, Metal Warriors, and Front Mission: Gun Hazard, developed by the studio behind the acclaimed shooter SATAZIUS.

Captain Clive: Danger From Dione$2.99
A wave-based horde shooter where you kill aliens while upgrading gear.

1993 Space Machine$11.99
Space shooters never die. 1993 is a testament to that. 1993 is a classic shoot em up celebrating games like Gradius, R-Type and Life Force.

Aspect$4.99
Aspect is a retro-inspired roguelite dungeon crawler, where enemies drop Aspects - fragments of their power, that you can use against them. With a variety of enemies to face, weapons to find, and procedurally generated levels, no two playthroughs are the same. Will you collect all of the Aspects?

Star Legacy VRFREE
Star Legacy VR is an immersive virtual reality shooting game that incorporates intriguing Roguelike elements into gameplay. Players assume the roles of interstellar guardians who venture across diverse planets and traverse through various time zones.

Guns of Fury$14.99
Guns of Fury is a retro-inspired action platformer that combines the run & gun and Metroidvania genres. Explore a vast interconnected world, gain new abilities and weapons, battle epic bosses and stop the plans of an evil corporation before it’s too late!

Technocide$11.99
Technocide is a vertical scrolling shoot 'em up with a heavy emphasis on player weapons and abilities. You must not let enemies past you and reach your mothership! You will need quick tactical thinking as you weigh your weapons' strengths and weaknesses against your enemies and their positioning.

BlockArena$3.99
Think you have quick reflexes? Put them to the ultimate test as you dodge and parry relentless enemy attacks. Unlock weapons with unique skill trees and play styles. Master multiple weapons and create your own unique build every run, only the fastest and sharpest will survive!

Whale Captain$2.99
Embark on your Dream Adventure: Discover uncharted lands, master the waves, and soar the skies! A challenging shoot-em-up bullet dodging game with a dash of side-scrolling platformer featuring a crew with hearts of gold at the ready, awaiting their Whale Captain.

Soundsaber$4.99
A twin-stick shooter where your music is your weapon. Whichever track you choose will power your engines and your lasers, but beware: your enemies are also driven by the music.

Things That Bounce and Explode$3.99
Things That Bounce and Explode is a fast-paced blend of brick-breaker and action RPG. Fight against the Blokolonian menace with an arsenal of mighty B.A.L.L.s, and master thousands of builds in this ever-evolving bouncing adventure!

Crystal Survivor$3.99
Defeat your enemies with super powerful charged shots! "Crystal Survivor" is a top-down roguelite arena shooter. Use the crystal's unique attack methods, various weapons, items, and relics to survive.

Mechabot Defender$3.99
Deploy your turrets and defend against an ever-growing mechanical horde! Upgrade your turrets separately in unique ways, use unique character abilities, and create powerful synergies.

STARNAUT$7.99
"STARNAUT" is a roguelike action game with a simple control!Gear up yourself with 8 weapons and fight against the endless horde!Can you regenerate the earth within one 15-30 minute playthrough? Supports mouse, keyboard, and controller. !

Nebula Invasion$3.99
Nebula Invasion was designed for those who enjoy the classic type arcade games, a spaceship shooter with great game play. Aliens attack many different ways from marching to dive bombing. You have the tools to fight back with a ship that can power-up with double, triple, rapid fire, or plasma cannon.

INSPACE 2980$2.99
INSPACE 2980 is a stylish and dynamic SHMUP from the 16-bit era of games consoles and arcade machines. Take part in an exciting adventure and save the galaxy! Once again!

Star Mine$5.58
Star Mine is a 3D first person perspective space shoot 'em up. Awesome old school action! The old federation is dying, poor and desperate. Deep outside the boundaries of known space, alien mines are protected. But not from you. Take cargo, blast star jewel's from asteroids, steal energy and flight.

Rome 2077: Space Wars$0.99
Unknown planets, whole new universe, with hundreds of ships to fight and explore, special abilities and ships craft. Rome 2077: Space Wars is a top-down shooter with ship craft, storyline, RPG element, survival endless mode and much more!

Cosmula$5.99
Engage in an intense space shooter that you can play in single-player or multiplayer with up to 6 players. Play a variety of different spaceships, each with their own unique stats, components, and playstyles!

Grand Brix Shooter$9.99
Challenge yourself to a new kind of bullet-hell fusion shooter. Change your aircraft to get new skills just when you need them against advancing foes. Aim for the top spot!

ProtoCorgi$6.99
Get ready to Bark’em Up! Play as Bullet, a C³ class (Cute Cybernetic Corgi) pup on his quest to save his owner, a brilliant scientist kidnapped by an alien race that wants to rule the galaxy. ProtoCorgi is a retro pixel art shoot’em up with a strong arcade feel!

Commander Tiberius Troubleson$7.99
A roguelite platformer with powerful yet limited use spells that will force you to plan ahead. Play as a wizard with a gun, explore handcrafted levels full of secrets and rain fire upon your enemies. No spikes. No fall damage.

JAGD LANZER$3.99
Destroy the legions of machinists! An easy to control mechanic 2D action game that attacks automatically when an enemy is in range. Customize your mecha to suit your needs. The key to success is to manage energy while standing around.

DICED Pilot$6.99
DICED Pilot is a 2D action game containing old-school platform-based movement/jump timing challenges, physics-based surroundings, jetpacks, and weapons that can destroy everything in sight!

Bing in Wonderland$8.99
A Roguelite monster killing satisfaction galore without any exploration elements. The game is filled to the brim with exotic enemies and stages with a collection of deep and robust boons, weapons, and items plus an abundance of pointless features and useless details. (CONTROLLER SUPPORTED)

Star Saviors$1.99
Saviors brings the best bullet hell experience you can find on Steam. Play through 18 challenging stages in this ultimate test of tactics and reflexes.

Steredenn: Binary Stars$12.99
Steredenn is a frenetic and chaotic space shooter, carved in big beautiful pixels, with insane boss battles. Embark in your ship and engage the fight against dreadful space pirates in a never-ending combat for your survival.

Operation Zeta$9.99
The great battle codenamed 'Operation Zeta' has been lost. Your ship is in shambles and you have to act quickly to collect all of the parts and repair your ship before the warzone is completely destroyed by the enemies death laser in this space rougelike.

Super Weapon Master 超级武器大师$3.99
You need to defeat them to collect gold coins to strengthen yourself! There will be more than 20 unique weapons, more than 30 powerful relics, and more than 80 upgrade options in the game. It is guaranteed that each game has a completely different gaming experience.

Phoenix 2FREE
A modern shoot'em up with classic arcade gameplay. Launch the epic story Campaign and engage in new missions every day. Collect, upgrade and master over 100 unique ships and compete against others to show you are the best of the best!

That's My Space$4.99
The universe is yours to conquer in That's My Space. Gather resources, craft powerful weapons, upgrade your spaceship and battle against enemy nations to become the ultimate space explorer.

DEEP SPACE ANOMALY$2.99
Space. Anomalies. Throw down a challenge to mad alien mutants in dynamic firefights with continuous injection of adrenaline! Get ready for the most unforgettable and enchanting space confrontation of all time!

SPACE BLASTER 8 BIT$0.99
They have briefly left by your ship in an asteroid Hagel theirs. Now you have landed to hostile area. Now you must only survive.

Space Grunts 2$9.99
Space Grunts 2 combines some of the fastest turn-based gameplay with card-battling mechanics in a 1950's sci-fi roguelike setting.

Space Warden$9.99
Space Warden is top-down shooter in space where whole environment can be destroyed. Use lots of weapons which can burn, stun, damage, explode enemy ships, bases and terrain. Use turrets to defend your base and complete various missions.

ROGUE FLIGHT$19.99
A breathtaking arcade space combat game inspired by prestige anime.

Burst Hero$2.99
Burst Hero is a pixel roguelike shooting survival game. You can choose heroes with different abilities and use various weapons to resist a steady stream of enemies. In the battle, you can customize your build by weapons bullets and cards. Each battle will have different experiences and challenges.