232 Bullet Hell Action games your group can play together online, including Ultratron, Walking Zombie: Shooter, and Atomic Picnic.
All games: 24
Experience the addictive gameplay of old-school arcade favourites, updated and improved for the 21st century! Unique retro-futuristic sound and graphics, player responsive difficulty, and a subtle system of tactics combined with classic gameplay make Ultratron a fun and hypnotic arcade blast.
The Walking Zombie is a stationary FPS with an online co-op mode in a world full of zombies to kill. Buy and upgrade your weapons, kill all enemies in 200 levels and destroy mighty boss monsters before they eat you alive!
Third-person bullet heaven meets explosive co-op action! Swing, dash, and blast through monster swarms while combining upgrades and discovering rare evolutions to create game-breaking builds of destruction.
Gangs of Space is a massively-multiplayer Rogue Shmup where Gangs of players compete for the conquest of the galaxy.
Archons is a Roguelite/Survivor game where you control two characters, the Archons- simultaneously! Customize your build and abilities to fit your own unique playstyle and blast your way through enemy parasites and bosses!
Warhammer 40,000: Dakka Squadron - Flyboyz Edition. Blazing, Ork aerial combat waged across 41st millennium battlefields. Dakka Squadron is a fast-paced, aerial shooter where you are an Ork Flyboy, taking to the skies to do what Orks do best - fight!
Bosorka is an exciting action roguelike where a young witch saves the world from insidious and cruel demons. Combine runes, master a variety of brooms, and try all possible and impossible spells until you gain enough power to fight evil.
Classic arcade nostalgia and modern-indie design collide in this shooting-gallery boss battler! Play as a one-man army in offline solo OR bring a friend in online co-op/versus mode! Supports Mouse AND Lightgun play!
The vast continent-spanning city of Collosatropolis has finally reached the limits of its expansion. Tall buildings cover every available space. The air is thick with smoke and poisonous chemicals. Parking is a nightmare
Zombie Party is a retro rampage of fun and over-the-top action, while still giving the players a deep and engaging Action-RPG Rogue-like experience! Go on a time traveling adventure, or delve deep into procedural dungeons full of gold, loot, and secrets!
Dominance is a multiplayer top-down shooter, built on a no-limits attitude. Choose between a rich variety of different ability and item combinations, select one of 6 distinct characters. Battle up to 24 foes on the ever-evolving terrain — and prove your Dominance.
100 years after a nuclear apocalypse, an AI-managed shelter and its guardian mechs await human survivors. The shelter’s reactor creates safe zones to improve living conditions. Players control mechs to gather reactor fuel, fend off mutants, complete missions, and protect survivors.
Play Astroflux - a retro styled, action packed MMO space shooter.
Danger Scavenger is fast-paced action, cyberpunk-themed, roguelite skyline crawler. Blow up, cut, shoot enemy robots on the roofs of skyscrapers. Choose your way to higher levels, loot, buy stuff, upgrade yourself, fight against greedy corporations, be a rebel!
Search for the legendary lost artifact Nienix through galaxies in conflict! An open world space action RPG adventure that can be played both alone and together!
Waves 2: Notorious is an arcade twin-stick shooter set in Cyberspace. Build Combos, earn Adrenaline and unleash powerful Burst attacks as you Dive into the Net and do battle against an AI that adapts to your weaknesses!
Play with friends against endless waves of man eater sharks.
R-Type and R-Type II, the legendary coin-op space shooters, are now together on Steam!
Ninjin: Clash of Carrots is an anime-inspired beat-em-up with varied enemies and deep customization. Play as the rabbit Ninjin, or Akai, the ninja fox, and fight to retrieve the carrots stolen by Shogun Moe! Redeem carrots for weapons, upgrades and more! Supports 2-player online or local co-op.
Select from a diverse roster of unique characters to assemble a trinity force and strategize to find the best skill combinations. Witness the astounding synergy that emerges. Engage in 2 player online cooperative multiplayer, team up with a friend to challenge orc hordes, and strive for high scores!
Everything in Tormentor❌Punisher can be killed in one hit, from bosses to yourself. Bosses conjure traps to make the arena hellish. Demons adjust to your play style and punish you. Perform combos on enemies and gain cool upgrades. Reload your machine gun by firing your shotgun. Let's do this!
Project Starship is an arcade bullet-hell with random mechanics. No match will ever be the same. Who will you be? Garret or Gwen? Will you save the world from the mighty cthulhu?
Warden’s Will is a fast-paced movement-based roguelite shooter you can enjoy solo or up to 3 friends. Pick your Warden, try out different builds, and jump into chaotic arenas filled with unpredictable robots. The game challenges you to move smart and react quickly and try new builds with every run.
Aqua Kitty is a fast paced retro styled submarine arcade shooter with optional 2 player local Co-op.Blast through hordes of mechanical sea monsters in your kitty sub and defend the deep sea milk mining kittens!THE MILK MUST FLOW!