Top similar games like Opalescence:

Inspired by the cult classic Mine Storm, Storm Mined modernizes arcade space shooting with rogue-lite upgrades and rhythm-based stages.

Grab the fate of all life in your hands. Blast your way through the cosmos, destroying monstrous cosmic beasts and the space cultists summoning them, on your path to stopping your mother from unleashing the chaos realm upon the universe, in this sci-fi cosmic horror bullet-hell, STARR RINGER.

Time to bug out and blast back in this arcade shooter packed with waves of insects and UFOs. Fight through 50 challenging stages, grab power-ups, and chase the high score.

Mashup of classic arcade games.

A mouse-only, endless sci-fi arcade shooter with dead-simple controls — just aim and auto-fire kicks in. Shatter asteroids into plasma cores, wield three upgradeable weapons, freeze time, and survive endless difficulty scaling.

They’re back! And this time, they brought backup. Blast your way through waves of vengeful aliens, dodge their bullets and cosmic insults, and defend our solar system in this retro-inspired arcade shooter.

In this Bullet Hell shooter, the more enemies you shoot, the more enemies spawn! Keep moving so you don't get surrounded, and shoot enough enemies to clear each level.

Oh no! Anxiety Bot has found himself in a meteor field! Try to help him survive as long as possible in this cozy, laid back arcade shooter. How long can you keep him safe?

You've been dropped into enemy space. Weave your Starfighter between alien spaceships, lasers, asteroids and bombs destroying as many as you can and collecting valuable coins and powerups as you go.

Repel the humans! Safeguard the future of all alienkind! Fueled by a large selection of quirky upgrades and power-ups, strengthen the alien alliance to destroy Humanity's Last Hope in this fast-paced retro action-arcade shooter with roguelite and tower defense elements.

Earth is on the verge of World War 3. All life as we know it will be gone tomorrow. Take control of "Super Star Dan" to build a super SSD that can store every DNA on earth before the world goes up in flames. "Life Saver" is a twin stick shooter that you don't want to miss out on!

Dodge and shoot your way through waves of enemies. REVO is a high speed, neon drenched space shoot ‘em up inspired by arcade classics of the 1980’s. Collect pickups, unlock powerful, ammo hungry weapons, and defeat giant bosses.

A top down, twin stick shooter inspired by classic retro arcade games with loads of enemies, fast paced bullet hell combat, big boss battles and tons of bullets.

QUICKERFLAK 2 is a retro-hardcore room-beater time-attack super fast-paced minigame.

Stellar Space is a new take on a classic arcade game with a modern, rogue-like, form for new players to enjoy!

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

In the vast depths of space, lies a man with a dark past. Setting himself apart from that old life, and seeking justice against wrongdoing instead of being the cause of it, Captain Righteous uses the Freedom Fighter, his trusty space fighter to search for and combat the evil Captain Buster!

Destroy hordes of strange machines that have invaded the forest. Yawnoc is a chaotic top-down shooter roguelite focused on immersion into the world of Conway's Game of Life and other cellular automata.

Bullet Shine is a high-speed arcade action game where survival means reflecting enemy bullets to wipe them out. Chain multipliers, rack up massive scores, and dominate the global leaderboards. Precision, reflexes, and strategy will determine if you rise to the top!

With loads of weapons and unique skills, rescue your crewmates and blast your way off of a savage planet filled with ruthless bandits and blood-thirsty, bone-crunching, flesh-tearing monsters. Just be aware, every successful escape cranks up the hostility toward those left behind.

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.

Take to the skies in this action-packed WWII arcade flight combat game. Engage enemy fighters, complete critical missions, and fight for control of the battlefield.

This is a retro space shooting game, where you only fight against the strongest enemy. There are 15 unique bosses in the game, and players need to use different weapons and strategies to defeat them. Dedicated to you who are both challengers and retro game lovers.

Galactic Explorers is a top-down 2D retro space shooter inspired by early games such as Galaxian, and Asteroids.

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

Synth-wave styled physics based 2D puzzle shooter filled with nods to the golden era of classic arcade games. Think upside down Peggle crossed with Space Invaders and enemies crafted from the blended remains 70's, and 80’s gaming.

Royal Odyssey is a retro-style arcade space shooter where you pilot Prince Zayven’s ship through a deadly asteroid storm, blasting your way to survival.

Maze 2D Pixel Game. To survive, Sora Amber must go through the mazes, running around the labyrinths and gathering energy dots to repair the important rooms of the abandon spaceship. Find super items that boost her strength, make her invisible and help her beat the enemies. Let's go! Sora chan !!

ZEROCRON is a straightforward, classical arcade Twin-Stick Shoot-Em-Up with a strong Commodore-Amiga-era feel. Blast asteroids and enemies to burning pixeldust!

An alien menace has descended on Earth! Defend the world from UFO invasion in this superb arcade shooter from Qute. Use your weapons effectively, deflect enemy bullets with your shield, and recapture the Moon from alien infestation!

A retro space themed local multiplayer PvP game which prioritises skill over luck. Kill your friends, get better weapons, kill them more, repeat!

Welcome to an epic world of endless carnage, where you battle alien foes at lightning fast speeds, and engage in mind meltingly epic boss battles. Immerse yourself in a beautifully hand crafted world, with visually stunning top down graphics and unlimited action packed levels.

In this unique top-down shooter, originally released in 1987, take on the role of the plucky little Biopton Nimrod, sent on a dangerous mission to rescue his friends from the 'Matrix' prison planets of the Cratons. Contains both the Amstrad CPC and ZX Spectrum versions of the game.

Blast your way through enemy territory and level up your versatile arsenal of high-tech weapons in this handheld game style retro shmup!

Alpha Force Zero is an intense top-down bullet-hell adventure that requires skill and planning. Utilize multiple weapon systems including an Auto-Turret with adjustable firing modes and unlock upgrades that you can equip in your ship to give you the upper hand. Dodge, fight, survive!

Refighter is a lightweight Rogue-like flight shooting and strategy game where players will control spacecraft to engage in battles in space, equipping various bullets and upgrading their levels. Face off against a diverse array of enemies and Bosses.