Player bases are located on asteroids, which travel within the Oort Cloud. Once they’ve acquired the appropriate skills, players can control their asteroid’s movements. Mass-combat enthusiasts will love the Arena: here, players can battle it out against alien races or other Astro Lord players.

8BitMMO is a retro-style 2D massively multiplayer game! It's a giant construction sandbox -- you can build a home or a castle in a persistent streaming world. Found and manage your own city. Fight evil LawyerCats and engage in Player vs Player battle.

Aberoth is a fantasy massively multiplayer online role playing game with charming retro graphics and tons of freedom.

Welcome to EverQuest® - the original fantasy MMORPG. Explore huge worlds, fight challenging foes, and grow your character with friends. Discover why players have quested, grouped, and raided in Norrath for more than two decades.

Play ArcheAge - A vast open-world sandbox MMORPG with everything you can possibly imagine.

Behold an anime-themed land of wonders, friendship and skill, shrouded in the mysteries of an ancient world yours to explore. Forge relationships and find new friends, take up a job, or soar through the majestic skies as you rediscover a social MMORPG beloved by many around the world!

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.

Critically acclaimed and now Free to Play, WildStar is a fantastical sci-fi MMO where you can join your friends or undertake your own epic adventures on the fabled planet Nexus!

Discover a world forged by players, where your choices write the story. From seasoned Mage to ambitious Warrior, from adventurous Treasure Hunter to humble Merchant, choose your path and experience Legends of Aria on your own terms.

Mortal Online is a first-person medieval fantasy MMORPG, set in a huge, open, unforgiving world. Choose your race, choose your playstyle, choose a profession, choose where to place your loyalties - if you have any...

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.

Wild Terra Online is a sandbox RPG, in a completely player-controlled medieval world. You will have to survive in a forest full of predators, build a shelter and improve your crafts skills, tame animals and fight for treasures. You can become anyone and do whatever you want!