Top similar games like Project Serotonin:

LaserShotz is an online PvP competitive arena shooter! Compete for the best rating on the leaderboards!

Defeat bosses in this bullet hell with unique characters and silly stories. Will you be able to escape the clutches of a contract you signed for the purchase of a yogurt maker?

Unleash explosive action in a deck-building top-down shooter. Customize your bullets with a strategic deck of cards for devastating effects.

Echoes of Red is a fast-paced roguelite shooter where you can carry tons of weapons at once, face endless enemies ever stronger and build your perfect custom loadout. Obliterate tens of thousands of enemies who dared to challenge you and make them regret standing against you.

Dead End Job sends you into a madcap, Ren & Stimpy-esque world to bust up ghosts. It’s a procedurally generated, couch co-op, twin-stick shooter that straps a vacuum pack to your back and puts a plasma blaster in your hand. For you, it’s just another day in the office.

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

In this brand new take on the top-down shooter formula, you'll utilize guns, gadgets, and upgrades to create your own path. Shoot, steal, and betray as you take on many different types of jobs. Completing or failing them has wide-spread effects on the world, and you're stuck with the outcome.

Collect unique and powerful upgrades while fighting through hordes of charging, shooting, angry and most importantly, evil enemies in this chaotic rougelite shooter.

Hardcore arcade survival shooter where you pilot a mech completely blind to the battlefield. Your only sight? The minimap. With relentless waves of enemies closing in, precise movement, and total awareness are your only chances at survival. How long can you survive?

Welcome to the world of Polygun, an endlessly customizable hero shooter where you battle against an ever increasing hoard of bloodthirsty shapes! With an array of upgrades to choose from, you'll quickly build from humble beginnings into a hexa-bustin killing machine!

Good old fashioned 2D arcade fun with tons of upgrades and fast paced action where taking risks is rewarded with a higher score. Defend humanity's last source of energy wrench in one hand, laser gun in the other

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

This is a bullet screen shooting role-playing game, where players can freely match their decks and have a thrilling battle!

Amazing graphics. Countless different units. An addictive Battle Pass. We have none of those things. Just one carrier and as many tiny fighters as you can muster to hold back hordes of enemy fighters and bombers. Victory is not enough - you may win the battle, but still lose the war!

Ignite your rocketship engines and zoom your way through the caves of tiltfire. Fly around tight corners and blast AI drones in this fast paced top-down shooter.

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.

A silly top down shooter filled with chicken demolition.

Astrotester is an action-adventure game. Complete tasks across various locations and levels. Fight against the dominant forces of the Flow and hostile creatures. Learn more about the world of Stellar system.

Blast through waves of alien enemies in Project AionIX! Master your piloting skills, dodge, and survive in this fast-paced space shooter!

The patrons of Jonny's Room weep for their loss, it is up to you to dab their tears! Click-and-shoot through combat and puzzles to test your heroic spirit.

Rip &Tear is a brutal top-down 2D arcade shooter where your shotgun is your only lifeline. Face endless waves of demons, cultists, and biomechanical horrors in a blood-soaked battle for survival. No gimmicks—just pure, relentless carnage.

Shoot aliens in the coolest way possible using classic weapons and your grappling hook!

Groov is a frenetic dual-stick shooter that makes you the conductor of an intergalactic jazz fusion orchestra. Every action in Groov has a musical reaction, and with three unique modes, randomized music, and powerups that slow down the song (and your enemies), no two playthroughs are ever alike!

In the Valley of Death is a color-based hack and slash twin-stick shooter, where the player controls Red and Blue as they dash, slash, and shoot their way through challenging levels as they attempt to make it to the Valley of Death.

Too Much Water is a top-down castaway simulator with an exquisite "splash" of humour, and a captivating story.

A top-down space shooter where you switch between the wings of the space station you are trapped in to fend off endless waves of enemies.

Autopanic is a minimalist twinstick shooter with rogue-like elements. Also a game about acknowledging player action.

Unknown planets, whole new universe, with hundreds of ships to fight and explore, special abilities and ships craft. Rome 2077: Space Wars is a top-down shooter with ship craft, storyline, RPG element, survival endless mode and much more!

Chaotic Pursuit is a hardcore Top-Down Shooter with cute graphics. You miss a shot and you're out!

Soda Sabotage is a Sci-fi 2D top-down shooter, where the player guns his way through 25 levels and 5 bosses belonging to a soda weapon factory using their own weapons against in order to disable the evil soda weapon making factory. Shoot, dash but most importantly survive!

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.

Repel extraterrestrial entities!

Battle your friends in this multiplayer arena shooter, where you'll ricochet bullets off of walls, collect coins, and purchase upgrades in between rounds. Use a diverse array of weapon types, ranging from deployable turrets to teleportation projectiles to cause extra mayhem on the battlefield!