When I decided to become a game developer, I didn't know that there would be so many difficulties on the way to becoming a game developer. I recently found a post thewiredshopper.com/cross-platform-games-everythi… that told me about what I have to do at the development stage. Now there are many platforms for games and you need to make a choice which platform will be, if you want a lot, you will have to optimize for each.