Lots of plain old fun :)

If you like this genre, this is a great one! i first had it on my iPhone, then when i got an iPad i got that version and today i saw this one. every time the screen gets bigger it looks better. controls are nice, especially hot keys. Been playing for hours and the game did stutter briefly during one intense situation but barely even worth mentioning. And keeping these great iOS apps affordable for OSX is great too.

derdeutsche about Starfront: Collision