Top similar games like OS Omega: Retro Shooter:

Reality is collapsing into the Null, a digital void that consumes entire sectors of existence. As the last surviving pilot, you dive into corrupted space to fight through hostile anomalies, recover lost data, and uncover the force behind the collapse before everything is erased.

Collection of a few arcade classics, remade with a fresh and friendly looking art style and a beautiful soundtrack.

Sealer of Dungeons is an action-shooter with Rogue-lite elements. Play Sealers on their journey, you will find great treasures and abilities to seal the unknown evil above. Gather precious loot, discover hidden secrets, and chat with merchants to get powerful items. Seal the dungeon, save the world!

Lucid Dream is a top-down action shooter with intense combat and hard boss fights. Explore layered areas, collect powerful upgrades, and build your own playstyle.

Challenging retro twin-stick shooter inspired by old ZX Spectrum games. Defeat all bosses and earn special power-ups before your lives run out.

Space Waver is an action-adventure-shooter space game, with a strong bind to comics. Become a space mercenary and experience his life through multiple contracts.

Wellenfjord Danmaku Adventure is a 2D danmaku shooter bullet hell game, featuring minimalist arts and fast-pacing combat. Includes Campaign and Arcade.

An underground adventure with magic and fantasy-like monsters with a story where actions affect the outcome

Chivalware is a frantic tile-matching action roguelite. Challenge your reflexes and coordination in real-time on a grid battlefield: evade attacks, match tiles to charge your weapons, and find the right opportunity to strike.

Blast through 20 sectors in a pixel-art vertical shoot ’em up. Collect salvage, dock with an alien merchant and build an arsenal of lasers, missiles and drones. Break gigantic bosses, chase explosive combos and unlock new ships across four difficulties.

Shoot. Groove. Loot. Repeat. Cross an ever-changing city skyline, flowing through encounters in tune with the cityscape’s beat. From the weapons you fire, to the enemies you shoot, to the zen-like flow, the only way to win is to become one with the beat.

The world is infested with giant mutated spiders. In Spider Crisis you operate a small remote control tank equipped with deadly weapons. Use your weapons to shoot, bomb, and burn these creatures back to where they came from.

Defend your Starbase in a vibrant roguelite shooter. Upgrade your weapons mid-run, unlock permanent rewards, and survive the endless onslaught.

Go on a quest to restore life to the world in this retro inspired shooter! You must be skillful and tactical as many will try to stop you! You are an exile after all which is a death sentence. But things may be as they seem on this journey.

Quad Est Quest is a top-down action roguelike inspired by 80s fantasy classics. Up to four players can band together in a journey not for the faint of heart. Each quest is of your own making, with alternate paths and secrets to uncover. Monsters, allies, and troves of loot await!

Exit the Gungeon is a small, spin-off 'dungeon climber' immediately following the adventures of the misfit Gungeoneers.

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. Monsterland has hybrid tile/ASCII visuals & Steam Deck support.

A Sci-fi Arcade shooter, fly around the screen space and shoot down enemies, gather minerals and exchange them for skills and ships

A top-down, quick-shot arrow game where precision is key. Master explosive, piercing, and homing arrows as you battle relentless foes and navigate unpredictable attacks. Test your skill in the realm of aberrations to save your loyal pet hawk!

Get ready for the ultimate space challenge! In this top-down action roguelite you’ll pilot your ship through a low-gravity environment, dodging obstacles and fighting enemies along the way. But be careful, one wrong move could mean the end of your journey. Are you ready to take on the challenge?

#Funtime is an explosive twin-stick shooter where shooting isn't your only weapon. Swap your ship's color to destroy enemies, avoid damage, and ultimately control the battlefield.

Hypnogenesis is an experimental video feedback bullet hell game in which arcade gameplay is integrated with the controls of a video synthesizer.

Create your abilities, destroy your opponents, go as far as you can in this roguelite arcade shooter. Full solo experience with our regular challenges or show them who's the best with the special leaderboard challenges. Do your worst, embrace the infinity.

Shoot. Dash. Collect. Upgrade. VCTR is a kinetic arcade shooter where two simple actions create countless strategies. Read the field. Choose when to act. And turn the chaotic battlefield into a dance of high-risk, high-reward play.

Snake-meets-bullet-hell roguelike where your tail is your ammo. Eat bullets to grow, spend length to shoot, and survive escalating waves, enemies, and bosses.

Dead End Job sends you into a madcap, Ren & Stimpy-esque world to bust up ghosts. It’s a procedurally generated, couch co-op, twin-stick shooter that straps a vacuum pack to your back and puts a plasma blaster in your hand. For you, it’s just another day in the office.

Blast bugs and chase high scores in this glorious revival of an old-school classic, all while jamming to a heart-pounding original score by Megan McDuffee. Play solo or tag in a friend for local co-op across 30 unique challenges or the endless arcade mode.

Polygon Survivors is a 2D survivors-style roguelite where you fight off waves of enemies using customizable weapons, powerful abilities, summons, and a variety of projectiles. Experiment with endless synergies to survive the polygonal chaos.

CRATES N' MOHAWKS is a chaotic arena shooter where every crate swaps your weapon. Grab crates, adapt to constantly changing guns, dodge swarms of enemies, and survive as long as possible while pushing your score higher.

In this fast-paced rogue-lite, your health points are your only resource: sacrifice them to acquire vampiric powers and devour your enemies to heal yourself! Beware: every drop of blood counts in this frantic race to defeat the apostles of the Cult of the Sun!

A top down shooter where the only way to move and fight is with the recoil of your blunderbuss. Whirl through waves of garden-destroying pests to defend Bert's garden, strive to reach higher and higher scores and become the Top Gnome!

You are a circle in a sharp world. Fight jagged enemies in a neon twin-stick bullet-hell roguelite, build devastating ability combos, and grow from fragile to unstoppable through shifting neon labyrinths.

Sluggerpunk is a gripping 2D survivors roguelike adventure. As you navigate through a myriad of challenges, hone your skills and strategies to clash with formidable foes lurking in the underground. Build a versatile arsenal of abilities and gear to enhance your chances to survive, but will you?

Spent Shells is a high score top-down shooter with roguelike-y randomized elements. Players dive in to an everchanging dungeon to harvest a crystalized power source that will get them home. Fight through the dungeon using a variety of weapons, characters, upgrades, and your own skill! Each run ea...

Wirehawk is a neon vector shmup in the spirit of 80s arcade classics. Play it your way: razor-sharp mouse control, or a dedicated controller mode rebalanced for the stick. Blast asteroids and alien waves, dodge bullet storms, slow time with stasis. Autofire always on.

Defender's Squad is a sci-fi vertical scrolling shooter 2D that combines 7 different levels. Play Solo and pick one of the 3 ships to kill enemies and save the earth from aliens.