Benjamin Padget’s Earth Vs. Moon has long been hailed as one of the best missile command games in the app store, and has gone free today only as part of FreeAppADay.com‘s promotions. Inspired by Atari’s 1980 arcade classic Missile Command, Earth Vs. Moon updates and innovates that concept while also paying homage to other classics such as Space Invaders and Arkanoid. Featuring clever boss encounters, a perks system and some truly spectacular visuals, Earth Vs. Moon should not be missed. If you haven’t already picked this one up, do it today while it’s free.