Hi guys, I'm about to embark on 13hr and 6hr flights and need some games to hold me over in case the inflight movies suck. I won't have internet and I never really played mobile games besides sudoku and scramble with friends, so what are some of your suggestions for games? I'd also rather not pay. I'm partial to RPG, strategy (like Civilization, Heroes of Might and Magic), and tower defense type games. Thanks in advance!