Galaxy on Fire 2

I used to play this on my Iphone 3 back in the day, a pretty good game but a bit rough around the edges and wayyy to short

If I remember correctly it is free for iOS.  For me the game was too shallow but at that time you could hardly find anything better (both in terms of graphics and gameplay) for an iPad.

Its also on PC now (HD version) i enjoyed it very much when i played it on my Sony Xperia game phone back in the day