Story Line
MK vs. DC does not follow chronologically with the other games in the Mortal Kombat series, and is set much earlier on in the series than the last MK game, Armageddon.

Gameplay.

Differences from previous iterations in the series are that Lara’s environment will be an “interactive world that reacts and remembers”,

Gameplay
Diablo III is an action role-playing game similar in style to its predecessor, Diablo II. The proprietary engine will incorporate Havok physics and feature destructible environments with an in-game damage effect.

There will be the return of many ways of racing in Need for Speed Undercover. Sprint, Circuit, Highway Battle

In 2011, the United States of America and the European Union sign the historic SLAMS (Space-Land-Air Missile Shield) Treaty, agreeing to co-develop technologies for a comprehensive, interlocking anti-ballistic missile system.

Left 4 Dead is played in first-person perspective although in some situations it changes to 3rd person, where players take control of the four main characters of the game; the Survivors. If four human players are not available to play, the remaining Survivors can be AI-controlled Computer game bots. They play through the levels [...]

The main story of Assassin’s Creed takes place in early September of 2012; Desmond Miles, a bartender, has been kidnapped by the fictional company Abstergo Industries in order to be used as a test subject in the “Animus,” a device that can stimulate the recall of ancestral memories buried in the user’s DNA.

In Metal Gear Solid 4, the player Old Snake must navigate the game world in order to progress, using stealth in addition to traditional combat.

The story focuses on the final battles of World War II in the Pacific and Eastern Europe involving the United States, the Empire of Japan, the Soviet Union, and Nazi Germany.

The game revolves around Po, a giant panda who dreams of becoming a great kung fu fighter.