[f3r3nc]

Just get started with something simple and gradually increase / add complexity. Nowadays there are really great engines that pave your way. Do make good use of them. Any of them will teach you about the game loop, gfx, control, sound, ai etc subsystems that needs to work together to deliver an experience for your players. Also do read about game design. I personally liked Jessie Schell's Art of game design book with the 100 lenses that helps younalong the way.