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!

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 an upcoming 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!

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.

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?

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

Dungeon Sucker is Pixel-art, Rogue-Lite, top down shooter game with absorption-defense as its core system. You was become a cleaner of Company, Please finish cleaning the dungeon by with the “Big - Strong Vacuum Cleaner” which is the high-tech!!!

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.

A tactical action game where you are backed up by an AI controlled recruit shooting mutated villains. Complete missions, operate tasks, and unlock new weapons and items and skills and put a stop to the Ooze Mutations taking over the city

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.

In this twin stick roguelite shooter, you play as one of the galactic mercenaries, explore a mysterious scientific complex and uncover the secret of the REPLIKATOR project.

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!

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

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.

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. Fight your way through the wastelands with powerful weaponry, collecting radiation to mutate some new limbs and abilities.

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?

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

Vortica is a 2D action roguelite set in a solar system overrun by hostile aliens. Suit up, loot up, and shoot up as you battle against enemy hordes, explore derelict outposts, and hunt giant bosses. Each mission gets you one step closer to returning to Earth and saving the human race.

Hollow Mine is an action roguelite that combines mining, crafting, and intense 2D top-down combat. Explore unpredictable, ever-changing mines, battle fierce enemy hordes, and confront tough bosses. Engage, die, learn, and repeat as you uncover new challenges with every run.

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...

In Astrum Vanguard, a captivating 2D arena shooter, you pilot a spaceship through space as countless enemy ships and alien creatures relentlessly attack you. Survive the endless onslaught in the cosmic battlefield!

⟪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……

Embark on an epic saga in Asgard's Fall, a norse Survivors-like Roguelite. Fight your way through hordes of creatures and let the gods feel your relentless wrath. How will your saga unfold?

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!

Cloak Hero is a rougelite dungeon crawler with a mix of auto and manual control combat mechanism. With weapons, magic and special powers, our hero fights to survive and grows stronger to face the evil force down in the deep.

Bioweaver is an RPG game with the main content of treasure hunting and character building. You can use basic programming logic to deeply customize your skill sets, and you can also create organs with different attributes and functions with the special crafting system.

Explore the farthest reaches of Human Space in this open-world space adventure. Compelled to journey to the Galactic Core by a mysterious hyperintelligence, you must fight your way through dozens of star systems teeming with clashing empires, expansionist AIs, and fearsome xenophobes.

An autoscrolling roguelike where everything you do impacts your talent options. Become a necromancer goose, or a berserker wielding a thunder blade! Collect legendary items in each run, and bring them back home for even more build options in the future.