Top similar games like Thunderday:

Stickman Adventures is a 2D Stickman Action Shooter. Fight your way through various levels and dimensions, defeating challenging bosses and enemies along the way! This game is very hard.

Destroy bosses one after another in this fast-paced and dynamic abyssal bullet hell!

A pixel-art platformer adventure game with lots of action and a memorable story.Dive into the depths of planet Anyaroth and free its people from the tyranny of the Queen. Join the Rebellion and fight against the Regime’s mind-control system. The anya civilization needs you!

A wormhole has opened up letting aliens terrorize your city. Pilot your spacecraft and destroy the aliens using flamethrowers, missiles, gatling guns, shockwaves, and more!

Survive 10 enemy stages! Shoot 'Em Up style, spaceship game, in pixel art and 8-bit retro music! Evolve your shot to the maximum level, use the energy bar for upgrades, and special abilities! Advance each stage by defeating Bosses and enemies to collect new skills, transformations and extra lives!

A bug-sized roguelike adventure of boogas versus faucets! Choose your booga, powerup with items, and destroy every last faucet foe!

Slayers, Inc. is a roguelite twin-stick shooter about killing hordes of demons. Acquire items to brutalize them in new and unique ways, empower yourself with Artifacts to kill 'em with style, don't forget to keep your combo going, and give those infernal fools the boot!

C6: Frontlines is a bullet hell co-op roguelike where only YOU (and your friends) can bring the Azapall galaxy to peace. Wield 30+ weapons and gadgets of mass destruction to even the playing field, wave after wave, against a seemingly endless onslaught of evil!

Explore dungeons, battle hordes of monsters, and defy fate in “Enter The Lost Chamber,” an action-packed pixel art roguelike. Discover new challenges, collect powerful weapons, and prepare to face the final boss at any time. Dive into the darkness!

Action-Adventure - Enter broken realms. Become the hope. Discover the truth. Every kill, every power, every resource, every choice, shapes your path and transforms the world around you.

HIGHPONY: SPACE ERROR follows Pony, a rebellious teenage girl who turns the universe into one big trail of trouble to blow off steam. Break machines and objects to your heart’s content, steal monster parts, and escape maze-like space facilities in this stylish 3D action adventure.

Step into Cosmic Mart, the space supermarket where the deal of the day is certain death. Wipe out the relentless alien infestation devouring the facility in this frantic action roguelike. Choose your mercenary and survive long enough to reach the sixth floor.

A broke bounty hunter. A sarcastic robot. 1,000,000 credit debt. Star Scrap is a chaotic twin stick space roguelite. Blast through increasingly difficult waves of enemies to pay it off.

Fight through a neon cyberpunk city action in this fast-paced top-down action game! Hack, upgrade, and battle high-tech enemies with a stylish cartoon look and an electrifying synthwave soundtrack.Indie game shooter top down cyberpunk.

A scientist locked a dangerous discovery inside her own mind. Dive in, break through her defenses and recover the memory.

Cryptark is a 2D sci-fi shooter where you take on the role of a heavily armed privateer seeking to earn government contracts by boarding deadly alien space-hulks. It's up to you to strategize a plan of attack, pick an equipment loadout, and destroy the central core to be victorious.

Survive a bullet hell where your Wi-Fi signal is your lifeline. Delve into underground facilities, fight off massive swarms of enemies, and strategically build a mesh network of signal repeaters. If your connection is strong, you're a powerhouse. If the signal drops, all you have is a shovel.

AsTroops is a roguelike card-based space combat game. Build your fleet, choose cards with machine gun, rocket, and electric weapons, and fight real-time battles to break the alien blockade.

Ether Loop is a hardcore fast-paced bullet hell with roguelike elements. Descend the unforgiving depths of a mysterious world, encounter challenges, discover dynamic environments and fight ruthless creatures while unveiling the secrets of Ether Loop.

Escape the asteroid and solve challenging puzzles in Korlax Escape, a thrilling cartoony sci-fi game that puts you in control of a UFO. With shooting mechanics and moving hazards, retro-gamers and speed runners will love the exciting gameplay. Can you make it out alive in Korlax Escape?

Dive into Nouns Crown, a wacky rogue-lite dungeon crawler where every day brings a new character to master. Embrace the chaos as unique abilities and weapons redefine your adventure every 24 hours in your quest to protect the all-powerful Nouns Crown from the invading Souls.

Take control of a spaceship in this top-down action shooter and defend yourself and earth from the unknown mysteries and horrors off space!

Chuck space aliens into each other! Dodge giant asteroids! Engage your tractor beam, force field and phase shifting technology to navigate the unknown in this 2D side scrolling physics based space adventure. 

Blast through the galaxy as Drax Gorbuloid, a grumpy space janitor of mega-corp Binary Express, tangled in a deadly corporate conspiracy. Clean up cosmic messes, uncover secrets, and try to survive across hostile planets in this darkly comedic sci-fi action adventure created by Pantelis Kassotis.

You awaken alone aboard a ship. Ahead of you lies an epic mission. Behind you, a forgotten past. Guided by Cosmo, your enigmatic artificial intelligence, you must face the fleets occupying each planet, recover fragments of your past, and uncover the true purpose of your journey.

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!

A typing adventure about a dog playing catch the ball! Protect your dog by spelling out words to defeat mysterious creatures before they get your dog. Your keyboard is your only defense in this world.

Survive endless hordes of rats in a fast-paced survivors-like game, upgrade your abilities, and fight to stay alive as the chaos intensifies.

Swarmbreak is a twin-stick roguelike shooter where you aim every bullet, stack every perk, and push every run to its breaking point. The only thing between you and oblivion is your crazy build cobbled together from 28 stackable perks, 10 weapons, and a character passive that bends the rules.

Fight through this corrupted monarchy in order to take the king's power and the crown, and destroy it to free the kingdom, all with a yoyo. It's too powerful to let anyone else wield it, so protect it at all costs!

Fast pace shooter that has a story to tell. Upgrade weapons and kill bad guys is what this game is all about. The story will make you excited about each level and boss fight!!! Good Luck and Enjoy!

Fly and shoot your way past hordes of alien oddities, mining planets and upgrading your arsenal to contend with the biggest threats the universe has to offer. Overcome these challenges by mastering the unique choices offered on each run, and transform from a struggling survivor into an apex warship!