Origin8 has Sentinel: Mars Defense (iTunes Link) in the iTunes App Store for FREE for a limited time. Deal expires February 21, 2010.

It’s war. Earth’s first off-world colony is fighting for survival against a savage alien onslaught. Mars is under siege and thousands of lives are on the line. Humanity’s only hope is you, the commander of the dropship Sentinel. Welcome to the future of Tower Defense!

Deploy sophisticated turret technology across the Martian landscapeto halt the alien advance. Protect walls and barriers that block the enemy’s path to your base. Upgrade your weaponry, or release robotic drones to repair buildings and harvest resources. Watch the battle for the planet unfold in beautifully rendered, atmospheric graphics.

Today only, DotEmu has Nicky Boom 2 (iTunes Link) in the iTunes App Store for FREE for a limited time. Deal expires February 18, 2010.

Nicky Boom 2 follows the thrilling adventures of little Nicky Boom, retro platform game that combines adventure, puzzle and 90’s graphics, is now available on the App Store to try to solve a new riddle.

With his magical goose by his side, help Nicky Boom to find out who removed the ladders and blocked the entrance of the caves in his country of origin. Enjoy your new weapons, go look for keys to secret passageways, and get ready to fight hordes of toadstools that divide when they’re attacked, of killer wasps which fire at you, spiked wheels, and even hungry grizzlies.
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Handjoy has GelexBy (iTunes Link) in the iTunes App Store for FREE for a limited time.

Help absent-minded physicist Alex to destroy newly invented matter called Gelex. He became really insane from it! Will you help him?

Gelex combines physics elements with traditional match three concept. It is highly addictive game that is designed and fully optimized for the touch screen with easy to learn controls.
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Today Only, Appy Entertainment, Inc. has FaceFighter (iTunes Link) in the iTunes App Store for FREE for a limited time. Deal expires Today, February 18, 2010.

Prove your Fu is strong by sharing photos of your defeated friends straight from FaceFighter to email, Facebook, and Twitter!

Now with Head-To-Head Multiplayer Gameplay! The FaceFighter franchise has been enjoyed by hundreds of thousands of players world-wide. Our steady series of free content updates has added new enemies, new weapons, and new finishing moves to the game’s paid version.

Now the faces you can fight include your closest friends and enemies! Prove yourself the greatest FaceFighter of all by taking on real, live opponents!

(Peer-to-peer multiplayer requires iPhone OS 3.0, and is compatible with iPhone 3g, iPhone 3GS, and 2nd Generation iPod Touch.)

Mass Creation has NetRunner (iTunes Link) in the iTunes App Store for FREE for a limited time. Deal expires February 22, 2010.

NetRunner is a retro style action maze game. As one of the best hackers in the world you plug into a high-end computer, and try to get through to Gaia’s mainframe, by steering an avatar and collecting the Overdrive Crystals through 50 different levels.

Cobra Mobile has Low Grav Racer 2 (iTunes Link) in the iTunes App Store for FREE for a limited time.

In Low Grav Racer 2 you race across 18 planet and space system based tracks from the Dante Nebula to the Arkonian Rift. It combines intense high speed racing and shoot-em-up action to create a unique handheld experience, only on the iPhone and iPod Touch. Designed specifically for iPhone and iPod Touch, Low Grav Racer 2 perfectly combines the Touch, Tilt and Accelerometer features of the iPhone with stunning visuals and heart pounding action to give you one of the finest all round racing and action experiences on the iPhone.

Today only, Avallon Alliance Ltd. has Mezopuzzle (iTunes Link) in the iTunes App Store for for a limited time. Deal expires February 11, 2010.

As a researcher of an ancient Mexican culture, you discover the wall, which displays mysterious Mayan drawings. But some bits of them, alas, were crumbled and mixed up . Your goal is to collect fragments of paintings and to reconstruct three beautiful Mayan legends. Each story provides another level of complexity. Each level you need to put together 10 paintings and gradually recreate key moments of the legend plot. Blocks can be moved in any directions within the boundaries of the playing field – right and left, up and down. To optimize the game process you’re able to slide few blocks at one time. Picture by picture, accomplished paintings take their places in the row on the wall. The game is based on a real Mayan mythology! Maya enigmas allure you to the heart of Mezoamerica.
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Chaotic Box has Pollywog (iTunes Link) in the iTunes App Store for FREE ($1.99 value) for a limited time.

Take control of Pauly the Purple Pollywog in the ultimate quest for floating Yum Yums! Dodge obstacles at super speeds, collect time-bending powerups, and blast through levels in this fast paced 2D physics dodge’m/racer.

Tilt your device to dodge obstacles and eat yum yums to get a speed boost. Tap the screen to shoot your water jet and blast obstacles out of the way – but watch out for immovable rocks! Cross the finish line with time to spare and earn awards to unlock increasingly challenging levels.

Pollywog requires fast reflexes, memorization, and problem solving skills to achieve that elusive “Perfect” run!
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Freeverse, Inc. has Moto Chaser (iTunes Link) in the iTunes App Store for $0.99 (1.99 – 1 instant savings) for a limited time.

Moto Chaser is an all-out pedal to the metal motorcycle race in the palm of your hand!

Smaga Bakery has Country Driver (iTunes Link) in the iTunes App Store for FREE for a limited time.

Country Driver is a new driving sim. Your goal is to try to hit as many sheep as you can while keeping your damage down and reaching the checkpoints.

Vendetta Studio has Omniball (iTunes Link) in the iTunes App Store for FREE for a limited time.

Omniball is a casual arcade/sports game designed exclusively for the iPhone and iPod touch. Omniball expands the 2D multiplayer ping-pong genre in all directions. Choose a color and score points by spinning your paddle around a circular arena using the simple and intuitive sliders to deflect the color-changing ball back at your opponents.

StormBASIC Games has ZombieHunter [7DA] (iTunes Link) in the iTunes App Store for FREE for a limited time.

Only Seven Days to the coming of the Apocalypse!
An unknown virus called the S-Virus is killing the human population and turning survivors into carnivorous zombies…could there be any other kind of zombie?!

Humankind has just one hope for the future-Dr. Kayla Cupper. Dr. Cupper has discovered the source of the infection, but she needs time. Your mission is to protect her, while she develops & synthesizes a cure to contain the virus.

José Andrade and Mario Álvarez has BomberDove (iTunes Link) in the iTunes App Store for FREE for a limited time.

BomberDove is a fun and addicting shooting game with a comic touch! Have you ever been bombed by a dove? Now’s your chance to get your revenge. Shoot the doves to score points, unlock achivementes and compare your score online with OpenFeint. Play Timed mode to score as many point as you can within the time limit, Endless mode for maximum score and Dodge mode to see how long can you last without dying.

Mobilisimo Inc. has Jetman (iTunes Link) in the iTunes App Store for FREE for a limited time.

This is the game you loved on Facebook: simple, fun and addicting, the perfect mobile game! Jetman is back and he’s ready to fly. This updated version features both touch screen and accelerometer controls. This is the only Copter / Jetman game in the AppStore with both options. Control Jetman as he flies through the cave dodging obstacles. Sound easy, but how far can you go?