How are games made?
With game engines. Who makes engines?
Some companies make engines for commercial use and others for themselves. How do I make my own?
Obviously with a game Engine. Game engines don't always use the same computer language so you have to pick a language to learn then a engine or vice versa. Contrary to what most people think not all games on Armor Games are made from Flash. Some are made from Unity and some from Java and etc.