I am a total beginner in the field of game development. Every time I saw or read an interview session with any indie developer they mention about the amount of money they spend on developing a game. I want to know where exactly did they spend the money ? Just imagine that you are making a game for mobile devices from scratch , where and all will you be spending your money to make one ? Is it possible to make games for mobile devices without spending any ? If yes , then it makes more sense for a indie game developer who is talented but comes from a very weak financial background. Thank you.