Top similar games like Battle for the Crystals:

Chaos Brigade is a 2D arcade shooter where you control a team of six space exterminators and lead them in the ultimate space cleanse. Wipe out the enemies with your arsenal, but don't overdo or you'll risk destroying the spaceships you are meant to save!

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

Test your reflexes in POLYGONEER, defend yourself from prolygonal shapes taht comes from everywhere, just hitting is not enough you need to match the right color shot to the polygon too! Are you ready for the challenge?

Smol Survivors is a 2D reverse bullet-heck where smol blocks have become lost and need to find their friends and a way back home while fighting through hordes of enemies.

A Twin Stick Shooter with melee attacks and Enemy Waves Survival game! Choose from different heroes, fight climactic enemy waves, level up, collect coins, fight against the endboss in three different levels and have fun.

Ladderway is a challenging 2D arcade game where you take the position of Joey, a man trying to climb up a building through several ladders while avoiding Mr. Mica's flowerpots as well as other obstacles.

A throwback to the classic quarter eating arcade games of the 80's. Bit Blaster XL is a retro styled, addictive, and fast paced arcade shoot 'em up! (shmup).

Pixel Descent is an action rogue-lite in which you navigate a series of complex dungeons packed to the brim with monsters that want you dead. Sign the contract and descend into the deepest depths of the abyss knowing full well that you will definitely die there, it's just a matter of when.

Gilded Eternal is an action arcade game about luring monsters into the King's crushing hand.

Geometry Wars: Retro Evolved is a old school style shooter, but remixed for the 21st century with next generation graphics and deep, modern gameplay. Playing is simple: you are a geometric "ship" trapped in a grid world, facing off against waves of deadly wanderers, snakes, and repulsars.

Fight through immense waves of enemies and test yourself in this difficult, top-down shooter. Swap between short and long-range weapons to tackle any situation. Unlock and upgrade dozens of weapon combinations to customize your loadout. How long can you survive before you get OVERRUN!

A wave-based action game, where you fight to survive for as long as you can.

Swallow’s Keep is a place of great prosperity; however, not all lands share in its wealth, and it has caught the eye of ambitious adversaries. Can you defend your home against the bandits?

Defy Gravity! Orbt XL is an intense, addictive and fun 'just-one-more-round' score chaser. Perfect for playing while waiting in queue for another game.

Po-Go-No! is a colorful and psychedelic arcade game where, on a pogo stick, you have to bounce between different floor tiles - each with different effects on your run and score points!

RANDOBOUNCE is a fast-paced, arcade, score-attack roguelike where you bounce uncontrollably while crafting the most ridiculous, overpowered weapon possible. Survive, rack up points, and let the chaos unfold!

Endless arcade action with just ONE button - Switch directions whenever you shoot!

Fend off hordes of enemies in this arcade tower defense roguelite with autobattler elements. Build up a team of powerful synergies and become unstoppable.

BEAT THE MONS is simple pixel auto shooter. Dodge, shoot, beat all these monsters and earn score! Life is not much else...

Survive the relentless swarm in this arcade take on the Bullet Heaven/Survivors-like Action Roguelite. Slay 1000s of foes, level up, loot chests and make your character more powerful than ever. Unlock meta-progression upgrades and more heroes, so you can even the odds on future runs.

Shoot different types of spaceships while avoiding getting shot yourself. Kill 10 minutes at a time with this affordable colourful timewaster.

Dodge, shoot, survive! Polygon pursuit is an arcade-style twin stick shooter where you are pursued by multiple enemies constantly. You play as a lone circle confined in a polygonal world fighting to survive against waves of unique enemies. This is not an easy game.

A fun twist on the classic video game 'snake'! You are a free roaming snake collecting apples and avoiding lava. Complete challenges, customize your snake and unlock achievements. What is the maximum score you can get?

“Vradark’s Revenge” is a fantasy game in the Action RPG genre.

Go free your besieged home planet... all by yourself! Emancipator GO! is a survival game with roguelite elements.

A legendary SHMUP influential to the best makers in the genre, Hellsinker is now available on steam in its most advanced form! Gameplay, story, graphics, and even music all united into one cohesive and highly dimensional Shoot-em-up!

Aliens have invaded Earth! Towns, cities, deserts, they're everywhere! Take on the role of Earth's last super soldier and confront the alien menace in this intense twin stick shooter!

Crush the forces of hell and get a high score in this addictive, action-packed, arcade-inspired twin-stick shooter!

Collect containers with your spaceship to activate color-coded gates, navigate through challenging levels as fast as possible and deliver your cargo. Experience a unique combination of puzzle solving, precision cave-flying and cargo shooting.

Buff Knight Advanced is a 2D Pixel RPG where you’re constantly on the move. Kill the invading monsters with your sword or by timing your use of spells carefully! As you progress the game becomes more intense with stronger and uglier monsters!

Vlambeer's ULTRABUGS is a fast-paced high-score game in which you fight endless space bugs that split up into MORE space bugs as you fight and defeat them.

Moon Dancer is a vertically scrolling shmup featuring an exhilarating lock-on laser.