Top similar games like Sovereign Zero:

Humans Vs Ghouls is an online top-down shooter following survivors of a ghoul apocalypse that blast foes to live another day.

A sci-fi twin stick shooter stripped down to the bare essentials with focus on smooth controls and satisfying action.

Physics based roguelite bullet-hell-and-heaven horde-survivor action game. Research and upgrade spaceship. Traverse procedurally generated galaxies with ability to alter its conditions and effects.

Repel extraterrestrial entities!

In this 2D twin-stick shooter you fly your spaceship, fight in epic space battles, discover new planets, invade new terrain, avoid traps, dodge bullets, customize your weapons and shoot your way through hordes of enemies. A different experience every time you play.

A distant human colony faces an enigmatic alien threat. As commander of a spherical battle droid, infiltrate alien spacecraft to neutralize the menace from within. Face AI-enhanced droids, upgrade your arsenal, and engage in high-speed action, mini-games and test your strategic skills and reflexes.

Fast top-down space shooter with varied missions, relentless enemies, powerful ship upgrades, and most importantly, fire.

Neon Fighter is a tiny arcade game packed with lasers and explosions, in which every few seconds you are forced to switch weapons automatically, making you have to adapt quickly to the new situation and re-evaluate your perspective.

Pilot a ship with a charger hanging. Explore an ever-changing space an plug to recharge your energy while surviving the enemy breach in this cable-like space shooter with roguelike elements and plugged resource management.

Choose your loadout, choose your art brushes, and blast your way to a masterpiece! Pew-casso is a top-down action-roguelite shooter where you defeat enemies to level up and create a piece of art. The longer you last, the more complex your unique piece of art will become.

Escape corruption and deliver truth to the people in the only way you know how. as a space fighter pilot! You steal a ship and flee, it falls to you to duke it out in space and deliver truth to the people. Restore peace. Restore justice. Save humanity and Escape The Kreegan!

Cosmic Corps is an action roguelike with bullet hell elements. Blast, slash, and laser hostile lifeforms as you dimension hop to freedom across a series of planets. Loot everything you can to arm yourself against the entity lurking deep within the Rift.

Brutal (one hit kill) twin stick shooter with hilariously fun and clever enemies. Also has roguelite and Sci-Fi stuff.

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

High-speed shmup where survival meets rhythm. Evade waves of enemies to pounding drum and bass soundtrack. Compete globally or battle friends in co-op/PvP. Customize your ship, perfect your run, and claim your spot on the leaderboards.

A shooting game by a shaman. Climb mountains to gain power and stop the scheme of demon. Vertical 2D shooting game in which players switch between four skills and fight using four patterns of shots and special move.

Lonefield Evacuation Survivor is a... survivor in which you play as a ship facing an alien incursion. Destroy your enemies, collect bolts and upgrade your ship to survive long enough and escape. Play alone or with up to 3 friends in local multiplayer or with Remote Play Together for online gaming.

Defeat the Empire a second time in this short electro-jazz space shooter. Beat up bosses and upgrade your ship as you go deeper into the belly of the beast.

PinCOL is an addictive Action 2D Space Shooter, a fast tactical Bullet Hell with Upgrade elements and Special abilities to obtain, the Color Damage Mechanics will drive you Crazy !!!

Can you survive the Empire's onslaught? Avoid the attacking enemies and upgrade your ship to last long enough to escape in this space survivorslike.

Apricity is a top-down shooter party game for 1-4 players. 11 character classes. Arcade-style gameplay with a text-adventure driven roguelike mode and a score attack endless mode.

Tank vs Orcs is an action packed twin stick shooter in development where you get to live out the ultimate power fantasy; being a fricken' tank and battling endless hordes or orcs.

Void Prison is a fast paced, endless arcade twin stick shooter that puts you inside of an ever shrinking ring. Survive by fighting emerging enemies around you and don't get consumed by the void. Complete achievements to unlock new skins and powerups and get on top of the leaderboards!

Welcome to WI Corp, Moddie Operator! Proceed through various levels inside WI Corp's headquarters while defending it from a perilous threat to its secrets using M.O.D.D.I.E, an high tech modular rifle, in this new single player, low-poly style, Twin-Stick Shooter.

Survive in the deep void of the galaxy against thousands of invaders! Nebula is a challenging bullet hell, twin stick shooter where you have to face endless waves of space enemies. Additional map resources and space drones can provide you a support but be wary, they can as well become a deadly trap.

Battle a never ending swarm of enemies, but be sure to surrender before you die...

Delusional is a chaotic top-down roguelike shooter where you battle absurd enemies with hundreds of ridiculous weapons, all in a desperate bid to defeat the eccentric artiste who created you.

Launch into a fierce roguelite action in this top-down twin-stick shooter with bombs! In a robotic world, control Lizzy and their team of unlockable beasty bots in a quest for upgrades. But beware, needed resources are guarded by swarms of Steel Sentinels. Survive them to craft synergistic builds.

Start off as a weak ship with a simple attack and fight through waves of enemies, earning currency in order to purchase upgrades for your ship. The never ending waves of enemies grow in number, power, and variety as you progress. Purchase upgrades to keep pace with them.

Rabbit Simulator is an Action Adventure game with a strong emphasis on gun violence.

BANAN'EM UP! is a tiny challenging arcade shoot’em up where you shoot down quirky aliens to save your planet. Evade bullets, shoot enemies, get upgrades, survive for challenging waves to defeat the final boss, "The MONKE". Die, learn, repeat: get stronger, be powerful!

Space Waves is a procedurally generated 2D arcade style shooter with multiple collectable power ups and varying enemy types. This game will casually draw you in and then increase the pace and difficulty as you progress through the never ending levels.

From the popular free game "Outside" comes a dreamy and cute barrage shmups. The visuals are colorful, cute and fantastic, and the game features active gameplay.

With easy-to-master controls, a simple objective, beautiful top-down 2D graphics and an 80’s arcade game spirit, FINAL PILOT is an online multiplayer battle royale set in the deepest reaches of uncharted space.

Search for the legendary lost artifact Nienix through galaxies in conflict! An open world space action RPG adventure that can be played both alone and together!

Dodge and destroy enemies and asteroids to get food and grow bigger! Be careful though, the game only gets harder over time. Deal with incoming bosses and find yourself your own unique strategy with the attribute system! Change up the gameplay with different stages and characters to choose from!