MMO

Massively Multiplayer Online

Everquest: Landmark

Landmark is an online social building game where you can create anything you can imagine. Powered by the ForgeLight Engine, Landmark features cutting edge technology and tools. Build and explore a world unlike anything you've seen before.

World of Warcraft: Mists of Pandaria

"Mists of Pandaria raised the existing level cap from level 85 to 90. It introduced a new character class, the monk, along with a new playable race, the pandaren. The vanity pet system was overhauled and a pet battle system was added. Scenarios were introduced, and Challenge Modes were added for dungeons. The existing 41-point talent trees were replaced by a new system of tiered talents awarded every 15 levels. Cross-realm zones were introduced, along with account-wide achievements and area of effect looting.

The Elder Scrolls Online

The Elder Scrolls Online is a massively multiplayer online role-playing video game developed by ZeniMax Online Studios and released in 2014. It is a part of The Elder Scrolls video game franchise, of which it is the first open-ended multiplayer installment.
After March 16, 2015, the game has no more monthly subscription fee and is called by the sub title "Tamriel Unlimited".

WildStar

WildStar is an upcoming science fiction massively multiplayer online role-playing game that takes place on the fictional planet Nexus, where a mysterious and powerful race known as the Eldan have disappeared leaving behind a wealth of technology and secrets for players to explore.

Need for Speed Rivals

Two factions, one big map: Rivals combines the dual career mode and high-speed freeway chases of 2010's Hot Pursuit with the openness and upgradeability of 2012's Most Wanted. New features include dynamic weather and optional MMO-like connectivity.

Trainz Simulator 12

Trainz Simulator 12 is a 3D railroad simulator that uses DirectX or OpenGL with multiplayer and the option of downloading 3rd party tracks, railcars, and objects.

Project: Snowblind

Project: Snowblind is a FPS video game developed by Crystal Dynamics.
In a world similar to that from Deus Ex you play as Nathan Frost, a soldier with nano-technology augmentations.

Star Citizen

Star Citizen is an upcoming space trading and combat simulator video game for the PC Platform. Star Citizen will consist of two main elements: a persistent world massively multiplayer online game mixing elements of 1st person space combat and interstellar trade (known as Star Citizen) and a branching single-player and drop-in co-operative multiplayer campaign (known as Squadron 42), together with customizable private server components. (Source: Wikipedia)

Star Citizen is currently in development with an estimated release date in Q4 2014. Star Citizen is being entirely crowd funded.

Final Fantasy XIV: A Realm Reborn

Final Fantasy XIV: A Realm Reborn takes place in the fictional land of Eorzea, five years after the events of the original release. At the conclusion of Final Fantasy XIV, the primal dragon Bahamut escapes from its prison inside an artificial moon to initiate the Seventh Umbral Era, an apocalyptic event which destroys much of Eorzea. Through the gods' blessing, the player character escapes the devastation by time traveling five years into the future. As Eorzea recovers and rebuilds, the player must deal with the impending threat of invasion by the Garlean Empire from the north.

Ragnarok Online 2

A Free to Play MMO.
one can obtain this game threw Warpportal.com or steam free.
the Game is a sequel to the game Ragnarok Online.
The game is a anime teamed fantasy action mmo rpg game.