First of all, not all parents don't care. My parents care. Iandioch's parents care. Many parents care, so don't go insulting them all.
Now, secondly, I think that you need to tell them these things. If you don't want to be what they want you to be, then just tell them that. Tell them that this is the job you want. But don't take it from me, you have to know this yourself. Are you sure, above all other things, that becoming a game developer is what you want? It's not easy, such is the truth with many professions, and from the looks of this, you have a long way to go. (No offense, please take that the right way.)
I do get it, Mohammad. If they are your parents, they will listen to you, okay? Trust me on this. If you can get them to be PROUD of you, then that is all you need. No more excuses. And besides, if they want your respect, they should give you respect, too. That's what family is.