Grab your cape and defend Millennium City in this comic book-style action MMORPG! Design your hero and costume from thousands of costume pieces, face super-villains like Dr. Destroyer, and create your own unique nemesis.

Join the ranks of the Spiral Knights. Stranded on an alien world, you must explore the ever-changing Clockworks beneath its surface.

Take the battle to the sky with fantastical flying mount combat unlike anything you’ve seen before in Riders of Icarus, the new unprecedented action-adventure MMORPG experience that lets you ride and fight on the back of the realm’s most dangerous winged beasts…dragons.

The Continent of the Ninth Seal (C9) is an action MMORPG. Players take part in the game as heroes of Glenheim to stand against Nefer, an evil villain trying to open a gate to the Netherworld and swarm the land with his infernal legion.

Anarchy Online – the first ever science fiction MMO – is now on Steam! Compete and cooperate with thousands of players simultaneously on a vast, alien world. Join humanity nearly 30,000 years in the future in a world of perpetual conflict and scientific marvel.

In Star Trek Online, the Star Trek universe appears for the first time on a truly massive scale. Players take the captain's chair as they command their own starship and crew. Explore strange new worlds, seek out new life and new civilizations, and boldly go where no one has gone before.

Take the battle to the sky with fantastical flying mount combat unlike anything you’ve seen before in Riders of Icarus, the new unprecedented action-adventure MMORPG experience that lets you ride and fight on the back of the realm’s most dangerous winged beasts…dragons.

The Void King is raising an army in secret. Death has chosen you as his champion to bring him down. Adventure & quest alongside your friends in this bizarre cross-platform MMORPG from the creators of the original, and comically-redundantly named... AdventureQuest! Weekly releases!

Neverwinter is a free, action MMORPG based on the acclaimed Dungeons & Dragons fantasy roleplaying game. Epic stories, action combat and classic roleplaying await those heroes courageous enough to enter the fantastic world of Neverwinter!

Secret World Legends is a story-driven, shared-world action RPG that plunges players into a shadowy war against the supernatural, where ancient myths and legends cross over into the modern day.

Closers is an episodic anime action RPG bursting with spectacular battles and steeped in an epic storyline. Choose your Closer, gather your friends or dive in solo, and use your amazing powers to protect Earth, in mankind’s desperate battle against horrific monsters from another dimension!

DC Universe Online is a Free-to-Play, massive multiplayer online action game set in the popular DC Universe. Become one of a new breed of Heroes or Villains and wield incredible powers as you go to war with legendary characters such as Batman, Superman, Lex Luthor and The Joker.