We have an exclusive co-op trailer of Portal 2. It is an upcoming first-person action/puzzle video game, which is scheduled for release on February 9, 2011 for both retail and Steam-enabled versions for Microsoft Windows and Mac OS X, and retail versions for the Sony PlayStation 3 and Microsoft Xbox 360 platforms. Watch the video after the jump.

[GT]

Valve has announced the availability of the Day of Defeat Source for Mac. If you already own the title for PC, you can download the title for Mac for free, and Mac and PC players can face off against each other seamlessly. If you don’t own the title, it is available for just $9.99. [1up]

Valve’s Counter-Strike Source has recently received a new software update. This new update features achievements, an improved engine performance, new kill-cam, etc. Additionally, Counter-Strike Source is now available for Mac. Steam sells the Mac version of Counter-Strike Source for only $6.80. [DigitalBattle]

Here is good news for all Warcraft III fans around the world. The new official patches for Warcraft III: Reign of Chaos and the Warcraft III: The Frozen Throne are now available for download. You can download these patches from Blizzard Support. [Blue's News]

Here are the first screenshots from Lucas Arts’ upcoming Monkey Island 2: Special Edition. This graphic adventure video game will be coming to the iPhone, iPod Touch, Mac, PC, PS3 and Xbox 360 this summer. More pictures after the jump.

[Kotaku]

EA has announced the availability of its much anticipated Need For Speed: Shift title for the iPhone and iPod touch via App Store. This simulation racing game offers 20 real licensed cars along with 18 different tracks that can be unlocked. You’ll be able to download it starting today for $9.99. [Joystiq]

Gameloft’s much awaited NOVA – Near Orbit Vanguard Alliance for the iPhone and iPod touch has finally hit the App Store. This sci-fi action first person shooter game offers:

An epic single-player campaign with 13 levels set in the jungle, snow, spaceship, bunker and alien city. 2-4 players in Local & Online Multiplayer Deathmatch over WiFi (2 players via Bluetooth connection) in 5 maps Worldwide leaderboards in the game & on the official website, www.near-orbit-vanguard-alliance.com 6 weapons: Assault rifle, shotgun, sniper rifle, handgun, rocket ..read the full article

Namco’s Ace Combat Xi: Skies Of Incursion for the iPhone and iPod touch has finally hit the App Store. This 3D flight simulator game offers an all new storyline exclusive to the iPhone and iPod touch, tilt-based controls and boasts superior HD-quality graphics. You’ll be able to download it starting today via App Store for $4.99. Check out the hands-on video after the break.

[TouchArcade]

Activision has finally brought the highly popular Call of Duty game to Apple’s platform entitled ‘Call of Duty: World at War: Zombies.” You’ll be able to purchase the game starting today via App Store for $9.99. The game offers both “single player and multi-player Co-op modes that support Bluetooth, WiFi and Online play.” Check out the gameplay video after the break.

[TouchArcade]

The much awaited Rally Master Pro 3D from Fish Labs has finally arrived on the App Store. You’ll be able to get your hands on this new 3D racing game for just $6.99. As a reminder, the game offers more than 27 tracks (in sunshine, rain and snow) to choose from along with three levels of difficulty: amateur, professional and experienced. Watch the trailer after the break.

[TouchArcade]

Volkswagen and Firemint have announced the release of ‘Real Racing GTI’ free promotional game for the iPhone and iPod Touch. This free to download game offers a Volkswagen branded racing experience, one main track, six 2010 GTI sport hatches along with three different race modes to choose from including Quick Race, Time Trial and GTI Cup Championship. You’ll be able to download it starting today via App Store. [TouchArcade]

EA Mobile’s Rock Band title for the iPhone and iPod touch is finally available for purchase via App Store for $9.99. As a reminder, the game comes loaded with 20 different tracks and features a quick play mode, a world tour mode as well as a multiplayer mode. Players can also choose from four different instruments including guitar, bass, drums and vocals. Watch the hands-on video after the break for more details.

[TouchArcade]

EA Mobile has recently announced the upcoming release of Rock Band for the iPhone and iPod Touch. The game will offer several different modes including a quick play mode, a world tour mode and a multiplayer mode along with 20 different tracks to choose from. Players can also choose from four different instruments including guitar, bass, drums and vocals. The game itself is expected to be released as early as next week for unannounced price yet. Check out the hands-on ..read the full article

EA Mobile has recently announced the upcoming release of Rock Band for the iPhone and iPod Touch. The game will offer several different modes including a quick play mode, a world tour mode and a multiplayer mode along with 20 different tracks to choose from. Players can also choose from four different instruments including guitar, bass, drums and vocals. The game itself is expected to be released as early as next week for unannounced price yet. Check out the hands-on ..read the full article