Set in a modern day survival-horror universe, the co-op gameplay of L4D casts four Survivors in an epic struggle against hordes of swarming zombies and terrifying Boss Infected mutants. Valve is giving potential fans a chance to check out L4D for free on Friday at 12:01 am GMT, including the just released Survival Pack DLC.

Check out the following new screens and trailers from Namco Bandai's Editors Day 2009 lineup:

• 'The Munchables' (Wii) - New Screens & Trailers
• 'Klonoa' (Wii) - New Screens & Trailer
• 'Active Life: Extreme Challenge' (Wii) Announced - Facts, Features & Screens
• 'Food Network: Cook or Be Cooked' (Wii) Announced - Facts, Features & Screens
• 'We Cheer 2' (Wii) Announced - Facts, Features, Screens & Trailer
• 'Magna Carta 2' (X360) Officially Announced - Facts, Features, Screens & Trailer
• 'Tekken 6' (PS3/X360) - New Screens & Trailer
• 'Dead to Rights: Retribution' (PS3/X360) - New Screens & Trailer
• 'Invincible Tiger: The Legend of Han Tao' (PS3/X360) - New Screens & Trailer
• 'Katamari Forever' (PS3) Announced - Facts, Features, Screens & Trailer
• 'Naruto Shippuden: Legends: Akatsuki Rising' (PSP) Announced - Facts & Screens
• 'Tekken 6' (PS3/X360) Also Coming to the PSP - Screens
• 'SoulCalibur: Broken Destiny' (PSP) Announced - Facts, Features & Screens

Handheld guitar gods can now choose how they raise-up their band from the underground music scene to worldwide rock stardom, not only featuring a set list comprised of 28 master tracks from influential artists but also an all-new Fan Request system that challenges players to jam like never before.

Roogoo uses geometric shapes and rotating discs to craft a frenetic, exciting puzzle game framed within an imaginative storyline and a delightfully realized fantasy universe. The new version will feature NDS & Wii cross-compatibility, all-new levels and game modes that take advantage of the Wiimote, touch screen and stylus.

Another day, another batch of game trailers was released. Instead of giving them all their own posts, we grouped them, and so far there are trailers for:

• Risen [X360/PC] - Mood Trailer #3
• The Conduit [Wii] - Story Trailer
• 
  We will update this throughout the day when new trailers become available. Read more for download links ...

Fallout 3 places a player in the role of a Vault-dweller, who ventures from his secluded, underground survival Vault into a post-apocalyptic world of mutants, radiation, gangs and violence.

Tripwire Interactive's Killing Floor is a first-person co-op survival horror, set in and around London after a mad scientist’s “specimens” have broken loose and gone on the rampage. Fans who pre-order the game today get 25% off ...

Crysis Wars is the multiplayer component for Crytek's FPS Crysis Warhead and features three modes, 21 maps, vehicles and more. The v1.5 improves stability, removes the known exploits, improves game balance, as well as add an all-new map, Ruins.

Check out the following new screens and trailers from Sony's Gamers Day 2009 lineup:

• 'Fat Princess' (PS3) - 27 New Screens
• 'Patapon 2' (PSP) - New Screens
• 'SOCOM: U.S. Navy SEALs: Fireteam Bravo 3' (PSP) - New Screens
• 'White Knight Chronicles' (PS3) - Facts, Features & Screens
• 'MotorStorm Arctic Edge' (PS2/PSP) - Facts, Features & Screens
• 'PixelJunk Monsters Deluxe' (PSP) Announced - Facts, Features & Screens
• 'MAG' (PS3) - Screens & Trailer
• 'PixelJunk #4' (PS3) Announced - Facts, Features, Screens & Trailer
• 'inFamous' (PS3) - New Screens

Ubisoft has just released the 2008-2009 full-year sales numbers, and it's no surprise that the French publisher/developer is still going strong, posting a 14% sales increase (€1,058 million). More importantly, a projected release schedule for the next 12 months reveals Ghost Recon 4, a new Arthur and the Invisibles title, and a new Wii sports game are in development.

Get ready for the return of some of Nintendo’s best-loved characters as Donkey Kong Jungle Beat has been added to the Wii’s New Play Control family, in which classic games are reinvented to take advantage of Wii’s unique motion sensing capabilities and new widescreen experience.

Red Steel 2 returns with an artistic style and flair created just for Wii. Set in a desert-bound, high-tech metropolis, Red Steel 2 is a revolution in the action-fighting genre, taking full advantage of the capabilities of the Wii MotionPlus accessory.

Live the life of a law enforcement officer tasked with saving the world in Miami Law, known in Europe as Miami Crisis, featuring explosive action, as well as crime-scene investigation, which players will use interchangeably to help save the city of Miami.

The Witcher: Rise of the White Wolf brings the unrivaled RPG experience to X360/PS3 with a brand new combat system for thrilling dynamic action, and a new engine delivering matchless state-of-the-art visuals. Yesterday's rumor about the cancellation of The Witcher's console adaptation seems to be semi-correct, as developer Widescreen confirmed it has put the project on hold due to CD Projekt missing several payments, although the dev studio states it will try to find a solution.

Wacky World of Sports takes players on a trip around the world to try their hand at some of the lesser known sports of countries including Italy, the Netherlands and Australia. The ten sports featured in the game all start easy enough but the more advanced a player gets the more extreme they become!

With two handfuls of cash and a dream of creating a legacy, you will build, cook and hire your way to the very top of the culinary world, where tasty food is king and smart management reels in the dollars.

SOE Austin is building a world where you feel like you've stepped into the DC Universe and become the ultimate super-hero (or villain) along side of Superman, Batman, or Ambush Bug.

Trine is a fantasy action game where the player can create and use physics-based objects to beat hazardous puzzles and threatening enemies. Set in a world of great castles and strange machinery, three heroes are bound to a mysterious device called the Trine in a quest to save the kingdom from evil…

Terminator Salvation: The Videogame, developed by GRIN Studios, is a 3rd person action game with concentrated armed combat against all of the Skynet enemies from the film while encountering new enemies specifically designed for the game.

Face a variety of tricky MySim opponents on a huge variety of exotic tracks! Take on up to three friends in intense multiplayer racing. During your race, find awesome power-ups such as the heat-seeking jack-o-lantern pumpkin or a bubble dropper that can help you wreck the competition.

Commemorating five years of Lineage II, NCSoft has rolled out a new expansion for its MMORPG. Gracia Final, the third part of the Gracia expansion series, brings players a brand new continent, refined PvP combat and arenas, expanded clan features, territory wars, and more.

City of Heroes is a superhero themed MMORPG that offers a host of gameplay features, allowing you to create your own heroes, band together with others to fight evil, build your own secret HQ and strive to become the premiere hero group in the city. To celebrate the 5th anniversary, NCSoft has reactivated all expired retail and trial City of Heroes/City of Villains accounts for free until 11:59pm EST Sunday, giving you 5 days of playtime.

Another day, another batch of games shipped to stores. Instead of giving them all their own posts, we grouped them, and so far there are announcements for:

• Free Realms (PC)
• Stalin vs. Martians (PC)
• Neverwinter Nights 2: Mysteries of Westgate (PC)
• Dynasty Warriors: Strikeforce (PSP)
• 
  We will update this throughout the day when new announcements become available. Read more for details ...

2K Games' Mafia 2 features a deep mobster-driven narrative packed with both behind-the-wheel and on-foot action, developed by the original creators Illusion Softworks.

Guitar Hero: World Tour will feature guitar, vocals, drums, the ability to create your own songs (and upload them on GHTunes), four-player on/offline co-op, and an eight-player battle of the bands multiplayer mode (4vs4).