Top similar games like Space Valkyries:

SpaceDRG is a high-octane, motion sickness inducing action game featuring cute pixel art graphics. Fight against the letters D, R & G in a space themed 1980s retro arcade environment.

Shadow Wake is a classic retro-arcade game with an 80s vibe. Lasers. Neon. Space. Battle hordes of aliens in fast-paced combat, manage your ship’s energy, and upgrade your gear.

Your tower lives on your desktop, always on top of whatever you're doing. An incremental-idle survivor of endless waves: it shoots on its own, you drive the progression. Collect, climb the difficulty and beat your record. Free.

In this retro-themed incremental game, auto-click to destroy polygon-shaped asteroids to get some cash. Spend that cash to get upgrades to make it easier and faster to destroy asteroids!

Red Horizon is an addictive space shmup game. Heavily influenced by the classics of the past, Red Horizon takes a modern spin on the genre combining it with some subtle Rogue-like elements to provide players with a unique experience every time they play.

Space fight arena is a retro arcade based arena shooter game that was modeled after legendary arcade games. This game retains the fun, addicting aspects of those arcade games while also adding on new, awesome features such as challenges, skins, and a world wide leaderboard.

Shoot neon wireframe enemies, earn shards, upgrade five auto-firing weapons, and prestige through the void. A first-person idle clicker with match-3 combos, boss fights, and endless progression.

Clear hordes of cosmic critters in this simple 2D shooter but be carefully, bullets that exit the arena will warp behind you and become dangerous to you ship. Whatever goes around comes around.

A sleep-deprived scientist must use a broken cleaning robot to contain a biological outbreak he accidentally caused before his wife returns and discovers the chaos.

Gray goo is a short retro arcade shooter with lots of upgrades. This game is about destroying goo in space and saving the universe.

Crystal Cosmos is a side scrolling color-based space shooter. You need to match your ship's color to your enemies color in order to destroy them.

Spin. Shoot. Survive.

A brutal Bullet Hell arcade experience where 20 SECONDS is all you get to WIN. Dodge cows, tentacles & asteroids while grabbing space tokens in pure chaos. Are you ready to complete the most intense space mission ever??

Deep Space Cache is a short & simple semi-idle bullet heaven incremental asteroid miner game.

Bad Cat Good Dog Alien Force is an Arcade Space Wave Defense Shooter. As the forward line, take defense against dimensional invaders and blast your way through waves of incoming enemies. Upgrade your abilities and blast more effectively!

Embark on an interstellar journey with Galaxy Idle Clicker! Conquer galaxies, upgrade your spaceship, and face off against a myriad of enemy ships. With engaging minigames, powerful upgrades, GIC delivers an unparalleled idle space adventure. Join the cosmic conquest today and dominate the universe!

Nick Duster, better known as "IcoNick", a war veteran of the intergalactic congregation, who has been brought back to defend the planets from hostile alliances. Control your turret, with high firepower. 3 game modes: Contracts, Asteroids and Invasion. Full of action. Hundreds of galaxies awaits. Go!

Defend yourself in this minimalist one-button incremental defense game. One hit, and it’s over.

Bolide is an arcade roguelike where you survive waves in space to unlock new skills! Destroy rocks and survive challenging waves to earn skill points and use them to choose from a variety of skills. Pick from 40+ skills, allowing you to create lots of skill combinations!

In the distant year of 2359, previously unknown alien forces have attacked Earth and its colonies. You are an agent on a special mission sent by the global senate to repel the attack and stop the alien forces. 

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.

Starforge Incremental is an action packed bullet-hell with fast paced combat. The players goal is to explore planets for resources and upgrade your ship using the massive skilltree.

Overcome the challenges of each mini-level in this precision platformer with speedrun and hit-kill mechanics. Every perfectly timed action pushes you forward. Perform your best acrobatics and moves to free the island creatures from the ambitions of Dr. Luiz RockBone!

Pamina VS Slimes is a fast-paced top-down arcade game where you defend your home from endless waves of slimes. Choose from 4 headpattable characters, master elemental strategies, and unleash powerful burst skills across 4 game modes. Get ready for non-stop action!

Escape the Maze of Malice in this frantic 2D top-down shooter!

SlayBall Brick Breaker is a fun twist on classic Brick Breaker games. Play an endless arcade mode where you put your skills to the test as you try and destroy as many bricks as possible and beat your high score.

Distant Space are present the arcade game of cosmic fights in arcade style of the 80's, this is a game where you can control the spaceship and forced to destroy extraterrestrials, which are moving in the certain order.

Get crystals, get upgrades, get points, get dead. Get a high score, get dead again. Get a higher score. Get flying, get addicted.

Bright arcade adventure in the world of slimes! Battle bosses, dive into minigames, level up your character, and unlock unique weapons.

The solar system is on the brink of collapse! Using powerful alien technology, you must battle enemies, players, and the forces of gravity to escape and survive. Redemption is optional. Survival is not.

80's vector style Twin stick action with a booming soundtrack and permadeath.

"Space Cats": Zip around as a space cat dodging rockets and grabbing Catnip for double points and a trippy speed boost. A fresh, funny game with a nod to internet culture, blending challenge, humor, and nostalgia.

Survive endless waves and let yourself be swept away by the chaos. Impact Trial: Hyperchaos is a fast-paced arcade bullet hell game with adaptive difficulty, where every second counts and only your reflexes decide how long you last. The longer you hold out, the harder it gets.

Infinity Wings - Scout & Grunt Take control of your chosen fighter (either Scout or Grunt) in this side scrolling shooter.

Help defend Earth's space base from invading enemy aliens in this incredible game to train reaction and aiming skills. Use your entire arsenal of weapons to destroy enemies of various types. Stand up to protect the planet. Best of luck!