Gameloft has N.O.V.A. – Near Orbit Vanguard Alliance HD (iTunes Link) in the iTunes App Store for 99-cents for a limited time.

IGN’s Action Game of the Year is now available for your iPad!
The premier sci-fi FPS on iPad takes full advantage of the device’s capabilities for optimal fluidity and staggering graphics, creating the most impressive gaming experience to date.

With Earth no longer able to sustain life, huge artificial satellites called “near-orbitals” were constructed for people to live on. To protect themselves, the near-orbitals banded together to form N.O.V.A., the Near Orbit Vanguard Alliance. Now, a strange threat has emerged from the darkness of space. A Marine ship, reported missing just a week ago, has suddenly reappeared and is headed directly for the near-orbitals, ignoring all communications. Against his will, retired Marine hero Kal Wardin is forcefully returned to active duty to prevent mankind’s annihilation.