Top similar games like Thetawave:

Beat up planets in Asterogues, a cosmic bullet hell shoot-em-up hybrid! Pick your character from a band of outcasts banished to the Asteroid Belt, dodge and shoot your way through a brutal onslaught of bullets, and take revenge against the Solar System!

Control the ball with gravity and smash through endless hordes! Collect weapons and skills, power up to the max, and survive the onslaught!

Consume the civilization of the fools who unleashed you upon the universe. Become the Empire Ender.

A【Pixel style, rouge、type horizontal、 shooting、 defense 】 game

Broadside Renegades combines auto-firing weapons with manual ship abilities in a rogue-like space pirate adventure. Choose your captain and upgrade your ship to steal the space kings booty. Warp ahead to stay alive, and mind your bearing.

lone.AI is a space RPG roguelite. With challenging, relentless gameplay, each run has the potential to boost your ship's power, speed, and more. As a lone AI, fight your way through the solar system and uncover the secret behind the ZOSMA, an alien race that holds power over the system.

Dungeon Souls is an action-adventure roguelike dungeon crawler which draws heavy inspiration from Nuclear Throne, Risk of Rain, and Overture. Explore vast procedurally generated dungeons, collect loot, and slay hordes of challenging enemies!

Dungeon Sucker is a 2D roguelite shooter. For the upcoming dungeon inspection, the Demon left for her summer vacation and entrusted the cleaning to an agency. Armed with the “Mighty Vacuum,” you can absorb anything that stands in your way. Clean up the chaotic dungeon—if you can!

A rogue game aimed at delivering a thrilling experience, crafting a powerful genre, and pushing forward to the end!

Heat Signature is a game from the developers of Gunpoint where you break into spaceships, make terrible mistakes, and think of clever ways out of them. You take a mission, fly to the target ship, sneak inside, and make clever use of your gadgets to distract, ambush and take out the crew.

The game is set in a dark pixel fantasy world. Destroy hordes of monsters ruling over what once was a prosperous land. 10 levels filled with various enemies await, you, each requiring a different approach to defeat. Like in any RPG, leveling up is the core element of the game

SURVIVE the swarm in this rogue-lite + survivors + asteroids mashup! Exterminate as many alien drones as you can. Upgrade your ship from the crafted deck of equipment and power-ups. You are the Last ship against the Endless... Will your choices be enough to overcome the thousands hunting you?

Blast your enemies! Create the ultimate build! Travel to the edge of space, in this epic rogue-lite action packed bundle of chaos inspired by slay the spire & FTL.

Infinite Evolution is a bullet-screen game that overlooks corner rouge. Multiple combinations of "skills" and skillchips can't be stopped, and lineage combinations, evolution or mutation"are at your disposal. The game has a variety of infinite stream and Gangz-like Settings and content experiences.

Regulators is a tactical top-down shooter where you lead a team of mercenaries to clear the city from mutating villains using your weapons, gadgets, special super powers and intelligence.

BroodStar is a classic arcade shmup with roguelike elements. Acquire crazy item combos, encounter strange events and fight challenging bosses on a quest to destroy the living planet, the BroodStar.

Cards and Guns is a top-down arena shooter roguelite, where you’ll have to defeat hordes of creatures. Choose from a variety of cards and upgrades to create unique builds and survive to the end.

Danger Gazers is a post-apocalyptic roguelite top-down shooter where you pave your own path. The choices you make will decide your fate, it will either turn you into the new ruler or... the ashes to be windswept away.

A space action-adventure unlike any other: navigate your spacecraft through a galactic-scale mystery. Make sure to loot, craft and upgrade your space fleet. Play the story campaign or test your skills in vicious arena modes against AI opponents.

Microbes and Machines is a roguelite action game where you control a little bubble robot that fights against the forces of evil.

Take up your weapon in this RPG bullet-hell world and embark on a journey to right wrongs from long ago. Only you can defeat the evil forces of the Undying guardians and reunite the world with the fabled Archvale.

Nuclear Throne is a post-apocalyptic roguelike-like top-down shooter. Not 'the final hope of humanity' post-apocalyptic, but 'humanity is extinct and mutants and monsters now roam the world' post-apocalyptic. Can you reach the Nuclear Throne?

A brutal mix between dungeon-crawler and shoot-em up. The dungeon will learn from you and become more dangerous every time you play!

Sluggerpunk is a gripping 2D survivors roguelike adventure. As you navigate through a myriad of challenges, hone your skills and strategies to clash with formidable foes lurking in the underground. Build a versatile arsenal of abilities and gear to enhance your chances to survive, but will you?

Rustwing is a twin stick shooter roguelike, set in the distant future. Navigate from star to star, battle the scattered factions of humanity, discover strange anomalies, customize your weaponry, acquire powerful upgrades and become a legendary pilot!

Rejected as heir after losing your will, you must survive on an abandoned amusement-park planet. Gather ingredients, craft food-guns, shoot, eat, and grow stronger to reclaim your lost legacy.

Survive in space in this action roguelike with RPG elements where you use your strategy to combine design, weapons and passive skills, shaping your ship in your style, facing increasingly powerful enemies.

In Astrum Vanguard, a 2D horde-survival with bullet hell components, you pilot and upgrade your spaceship to defeat countless alien creatures. Survive the endless onslaught in the cosmic battlefield!

Battle Planet - Judgement Day is a planetary rogue-lite top-down shooter. You are one of the universe's 3 most wanted criminals on the run, fighting your way through hordes of aliens, military and police units. There is only one way to reclaim your freedom - destroy them all...

⟪末卡未来⟫是一款2d像素风格的俯视角类幸存者游戏。末卡大陆正在遭受魔物的入侵，你必须抵御魔物一波又一波的进攻……

Crush, smash, and eat thousands of enemies showing humanity what the meaning of destruction is! Kaiju Catastrophe is an arcade game with roguelite mechanics. Mutate devastating weapons, unlock permanent evolutions, and wreak havoc with a variety of monsters to tear humanity apart!

Enter the human body with A Way To Die! Play as a disease that attempts to infect its host by contaminating organs and mutating! Discover new ways to win every time you play with all the different diseases!