Best Massively Multiplayer Games on Steam
Unlike generic lists, our strategy game recommendations use a rigorous analysis of Steam user reviews to identify and feature only the best, community-validated massively multiplayer games. For those who prefer not to search, check out lists of the most played, top deals and best free to play Massively Multiplayer games on Steam.
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The Black Watchmen
Become a Secret Agent and investigate paranormal activities in this dark Lovecraftian universe. This Alternate Reality Game will have you explore complex puzzles in-game but also in real-life; interacting with real websites, companies, and NPCs that we created as part of our universe.
Mitos.is: The Game
Step into the microscopic world of Mitos.is! Eat or be eaten—become the ultimate cell in a highly addictive multiplayer game. Diverse modes, daily tournaments, guilds, and gear await! The BEST game of 2015 is back!
Trove
Grab your friends, hone your blades, and set off for an epic procedurally generated adventure in Trove! Battle the Shadow in realms filled with dungeons and items created by your fellow players. Whether hunting treasure or building realms of your own, it’s never been this good to be square!
Subspace Continuum
THE legendary free online multiplayer space shooter! Addictive, fast-paced, easy to learn, and impossible to master.
Dirty Bomb®
Work together or die alone! Fight to restore peace to London or tear it down for profit in the most challenging team based shooter around.
Sirius
Sirius Online is a unique, easy to play Space Action Shooter with ongoing progression. Join the Ranks of the Terran Reclaim Forces or the Sirius Colonial Council today and fight for your Faction! Explore forgotten battlefields, find Treasures, create an empire and rule the universe!
The Four Kings Casino and Slots
The Four Kings Casino & Slots is a rich social online multiplayer casino gaming experience. Play all of your favorite casino games like Poker, Blackjack, Roulette, Craps, Baccarat, Slots and more! Meet friends, climb the leaderboards and win rewards to customize your avatar.
Strife®
Strife® is a truly free to play, competitive, MOBA that features non-stop action and engaging combat. Take control of powerful and versatile heroes, each capable of dominating in unique ways, and exert your will in an epic battle between two teams.
Blockstorm
Blockstorm is a FPS game set in a world made of destructible blocks. All maps and characters included in the game are made with the same tools that are available to the public. You can build everything in Blockstorm, and you can destroy it.
Block N Load
Five of you. Five of them. Face off in a battle where everything you build, destroy, construct or shoot has a devastating impact on the entire game. Build defences using a crazy range of block types and work together in this FPS where no game is EVER the same. NOW FREE TO PLAY.
Ultimate Tic-Tac-Toe
Ultimate Tic-Tac-Toe takes the classic game of Tic-Tac-Toe and adds a strategic layer to it. Game modes: classic, classic forget, ultimate, ultimate forget, ultimate forget total.
Red Stone Online
Red Stone is an online 2.5D Ultimate Transformation MMORPG! The story of Red Stone begins in the fantasy world of Prandel as players go on an adventurous quest to search for a mystical red stone that fell from the Celestial World.
Copa Petrobras de Marcas
COPA PETROBRAS DE MARCAS is a 100% free official game simulating the thrill of competing wheel-to-wheel with models from various automakers in some of the main Brazilian race tracks.
Elite Dangerous
Take control of your own starship and blaze your trail in an ever-changing galaxy. Master the arts of combat, mining and trade or venture out into the unknown across a 1:1 scale universe.
Freestyle 2: Street Basketball
Freestyle 2: Street Basketball is a fast paced online arcade basketball game. Create your own unique player and compete in the online street league! Use variety of b-ball moves and customize your player! Team up with the best street ballers online and rise to the top!
Bloodsports.TV
Co-Op Hero Defense set in a deadly post-apocalyptic Sweden. Team up with your friends and protect the Missile Silo against horrific beasts and outlaws.
Requiem: Desiderium Mortis
Requiem: Desiderium Mortis is a Free-to-Play MMORPG set in a dark distant world where an event known as the "Thanatos Incident" rendered the world almost unlivable. Create your own biological weapon known as a Temperion and experience the horrors that grip Ethergia.
Boring Man - Online Tactical Stickman Combat
Battle other 2D stickfigures online while jumping around like a lunatic and getting blown up into smithereens. With over 70 weapons, Boring Man is the most chaotic and hilarious 2D online shooter on the internet.
Transformice
Transformice is an MMO platformer about dozens of mice running to bring back the cheese! Will the almighty Shaman help you or just ruin everything? Millions of levels, hectic physics, skill trees, and more importantly... hats!
Gear Up
Feel the adrenaline as you control your unique tank in multiplayer arcade action! Build your ultimate war machine from over a million different combinations. Now, will you go for the rumbling caterpillar tracks or the crawling spider legs?