What better way to kick off our blog than with news of a freebie? The game that launched a million dropships, Sentinel: Mars Defense, is now FREE on the iTunes App Store for the next week.

Humanity’s first off-world colony is under attack by mysterious, implacable alien invaders. As Commander of the dropship Sentinel, it’s your mission to protect the Martian outpost against incursion. Deploy weaponry, defend your base and destroy your foes in our pioneering, award-winning Tower Defence game.

Check out the official Sentinel: Mars Defense page, or watch the trailer below.