841 2D Action games your group can play together online, including Bullet Heaven 2, The Binding of Isaac: Rebirth, and Tumblestone.
All games: 24
Bullet Heaven 2 is a bullet-hell shoot-em-up inspired by games like Touhou and Jamestown. It's all about shooting every cute thing that moves, while dodging hundreds of shiny bullets per second!
The Binding of Isaac: Rebirth is a randomly generated action RPG shooter with heavy Rogue-like elements. Following Isaac on his journey players will find bizarre treasures that change Isaac’s form giving him super human abilities and enabling him to fight off droves of mysterious creatures, discover secrets and fight his way to safety.
Tumblestone is the first original action-puzzle game of the past fifteen years -- completely reinventing the genre into a deep and cerebral puzzle solving experience that you won't forget.
"Shower With Your Dad Simulator 2015: Do You Still Shower With Your Dad?" is a fast paced shower-simulation where you shower with your 8-bit dad.It's good, clean fun!
Battle huge "Koju" bugs in CAVE's beautiful fantasy shooter, Mushihimesama. Experience the thrill of bullet hell from the masters of the genre as you evade visually stunning shot patterns with thousands of bullets.
The Pang series is a beloved collection of arcade video games from the early 90s. Guide two brothers on a quest around the world to save humankind from a massive alien invasion!
Relic Hunters Zero: Remix is a remaster of the FREE 1 million player hit game about blasting evil space ducks and turtles with tiny cute guns. It’s fast, it’s tactical, and feels deliciously smooth to play. Unlock new weapons, characters and relics to defeat the Ducan Commander!
“SHOCK TROOPERS ”, the fan favorite 2D top-down view action shooting game released exclusively on NEOGEO MVS in 1997, returns to the battlefield on Steam!Progress through the battlefield, choosing the best routes and strategy!
Teeworlds is a free online multiplayer game, available for all major operating systems. Battle with up to 16 players in a variety of game modes, including Team Deathmatch and Capture The Flag. You can even design your own maps!
KOF 2002 UM is the 2nd title in the UM Series and a fully upgraded ver. of KOF 2002, a masterpiece of the KOF Series deserving its place of honor alongside KOF ’98. Based on THE NESTS CHRONICLES, 2002 UM includes the most characters of any title in the KOF Series, and fighting game history!
“METAL SLUG ”, the very first title in SNK’s legendary 2D run & gun action shooting game series where all began, returns to the missions on the Steam gaming platform!
Zezenia is a free to play 2D MMORPG with intense PvP wars & PvE combat. Choose from three classes and seven subclasses to discover a large map with four continents, hundreds of quests, a random equipment system & more.
DARIUSBURST Chronicle Saviours is the latest installment in Taito's DARIUS series of arcade-style shooting games. Blast hordes of alien sea-monsters, and blaze your own trail through branching environments.
Five-star tower defense with unrivaled depth and replayability. The Bloons are back in full HD glory and this time they mean business! Build awesome towers, choose your favorite upgrades, hire new Special Agents, and pop every last invading Bloon in the most popular tower defense series in history.
Rampage Knights is a cooperative beat 'em up game mixed up with randomized dungeon crawling and exploration, which you can play alone or with a friend online.
Chicken Invaders puts you at the forefront of a battle against invading intergalactic chickens, bent on revenge for our oppression of Earth chickens. This time, the chickens have hatched a devious plan to block out sunlight and freeze Earth to death!
THE legendary free online multiplayer space shooter! Addictive, fast-paced, easy to learn, and impossible to master.
Guns, Gore & Cannoli - An over-the-top, comical and fast-paced action game with hand-drawn graphics set in the Roaring Twenties. An all-you-can-shoot fest where you embody Vinnie, a mobster with a mission in a city controlled by gangsters and plagued by zombies. Featuring up to 4-man local co-op.
After “KOF '98”, often praised by the fans as the best installment in the “KOF” series, and “KOF ’98 UM” 10 years later, “KOF ’98” returns now on the Steam PC gaming platform in an ultimate and final version with THE KING OF FIGHTERS ’98 ULTIMATE MATCH FINAL EDITION
With BADLAND: Game of the Year Edition, experience the multi-award-winning action adventure like never before - redesigned for Steam.
The world’s greatest fighting game evolves to a whole new level with Ultra Street Fighter IV.
Steredenn is a frenetic and chaotic space shooter, carved in big beautiful pixels, with insane boss battles. Embark in your ship and engage the fight against dreadful space pirates in a never-ending combat for your survival.
Plan a SWAT entry with one friend in Door Kickers’ two-player online co-op, then watch your routes meet real-time resistance.
Build a soup company with up to three online friends or one local partner in PixelJunk Nom Nom Galaxy. Explore alien planets, automate production, and compete with rival corporations for the market.