Top similar games like Zeo Effect:

Star Vortex is a fast paced Action-RPG inspired by classics of the genre. Design your ship, fight your way through hostile alien sectors, upgrade as you salvage rare weapons and experiment with different builds until nothing can stand against you.

CYBRID: Survivor - is a single-player shooter with survival elements. Use your entire arsenal, fight hordes of robots, mine resources and unlock powerful upgrades as you clean up the streets at night. You are alone, against everyone!

Play as an Otter in this Rogue-lite action shooter. Mow down through hordes of goons and enemies as you traverse through Panda's Box. Loot among many guns and powerups to conquer the new world.

"Super Smash Asteroids" is a high-speed, twin-stick, top-down, rogue-like space shooter. Choose from 6 unique ships, upgrade with 70+ items & blast through epic bosses. Level up for intense, action-packed battles in a futuristic universe. Buckle up for a thrilling journey to glory!

Demo for Power of Ten, a single star fighter trying to save as many civilians as possible before they are overrun by a marauder armada. You'll need to gather new weapons, upgrade your ship, find resources, trade with other ships and more to overcome the challenge before you.

Spaced Liberation is a very small indie game about the liberation of a planet.

Blast through chaotic dungeons and unleash powerful weapons as you journey through the multiverse in search of a way home. Dodge, loot, and survive against deadly foes, extracting hard-won treasures to repair your ship and make it back!

Cosmic Corps is an action roguelike with bullet hell elements. Blast, slash, and laser hostile lifeforms as you dimension hop to freedom across a series of planets. Loot everything you can to arm yourself against the entity lurking deep within the Rift.

Retrofuturistic bullet-hell roguelike where you play as a rogue time traveler, fighting through hundreds of historical foes! Every run reshapes history itself— Shoot weapons from different eras, use time-manipulating skills, and create unique builds to survive until you reach the end of all time!

Endless Firepower puts you behind the trigger of millions of procedurally generated weapons and gives you a reason to use them in this fast-paced action roguelike where everything is generated and you'll never know what or where you'll be fighting next.

Cyberscape is a top down round based action game with some rougelike elements. Play as different heroes with unique abilities and fight against the evil robot army. Level up and complete achievements to unlock new items and fight your way through different locations.

The spirit of the 80s shapes the entire world: magic and technology collide in a post-futuristic 2087! An action 2D game with rogue-lite inspired mechanics. Two characters two combat styles: Elly, a melee fighter. Johnny, a gunslinger. Fight your way through, get the keys and unlock new rooms!

Fast paced Top-down shooter! Smartly use IRCM to evade the constant barrage of bullets and missiles and destroy everything that stands in your way.

A sci-fi roguelike about a lone pilot on a forbidden mission through his galaxy. Piece together his story as you scavenge to build your loadout in this procedurally generated space shoot'em-up.

Fight through relentless waves of zombies in this action-packed top-down shooter! Collect weapon parts, craft insane custom guns, and unleash devastating synergies to survive as long as you can.

Sanctum Arcadia is a game where you must fight your way through increasingly dangerous zones filled with enemies, hazards, and mystery. Sanctum Arcadia has a unique but still familiar progression system, challenging and engaging combat, all in a smooth Arcade-like experience.

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.

Exciting arcade action game where you will fight against hordes of enemies, upgrade your skills, and choose from a variety of weapons and abilities. With each battle you become stronger and unlock new possibilities. Dive into thrilling battles in captivating world of "Endless Return".

GLASS x CANNON is a risky top down shooter roguelike. You are always very low health so you'll have to dodge and use blood to survive. Collect items and get stronger to defeat a powers, crossing into our world.

Deploy your turrets and defend against an ever-growing mechanical horde! Upgrade your turrets separately in unique ways, use unique character abilities, and create powerful synergies.

Delusional is a chaotic top-down roguelike shooter where you battle absurd enemies with hundreds of ridiculous weapons, all in a desperate bid to defeat the eccentric artiste who created you.

Escape from Andromeda is an overhead 2D sci-fi spaceship looter shooter based in a procedurally generated galaxy. In Escape from Andromeda, every planet is a level, and every star is a part of your story.

Survive Planet Yubglub is a survival rouge-lite, where Earth Representatives must hurl dodgeballs while evading toxic slime aliens and their lethal projectiles. The Earth Reps. must carefully navigate through the harsh environment of planet Yubglub. Choose your character, and Survive Planet Yubglub!

You just have to kill the bugs and critters before they kill you, so you can kill the bugs EVEN BETTER. Defeat the 3 floors and their bosses to win the game! Fight through procedurally maps made of handcrafted rooms, in this action RPG shooter with heavy roguelike and bullet-hell elements.

Action game character upgrade

Battle through demon-infested lands in this fast-paced rogue-lite bullet-heaven. Pick unique weapons with powerful evolutions, and hunt down ancient demons in intense boss fights. Loot, upgrade, and unlock new ways to grow stronger after every hunt!

PinCOL is an addictive Action 2D Space Shooter, a fast tactical Bullet Hell with Upgrade elements and Special abilities to obtain, the Color Damage Mechanics will drive you Crazy !!!

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.

Exterminate the bugs that are hidden on the dark side of the moon. A game based on space exploration, with a variety of items and monsters and a evil to be defeated. Adventure in this space experience and destroy them.

Movement is your weapon. A sci-fi action roguelike and shmup combined, in Gunlocked 2 you'll pilot and upgrade a state-of-the-art warship against endless waves of deadly aliens. Deep customization, branching paths, and tons of unlockables offer endless replayability!

GeoLight is an endlessly replayable arena roguelite action-packed experience with tight, responsive controls and a focus on high-stakes decision-making. You are not just surviving. You are evolving.

Welcome to Slime 3K, an unhinged roguelite bullet-heaven set in the Despot’s Game universe! Build a deck of crazy weapons, grow stronger and devour hordes of pink puny humans as a murderous jelly blob on a warpath of death, violence and pretzels.

Iron Rain is a race to carnage! As an AI Tank Commander you battle the Nirvana AI and her robot hordes, in this Speedy Twin-Stick Roguelike. Grow overpowered with a vast range of upgrades against a varied and unique army of enemies!

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