the agar io game keeps getting views which is awesome. How do i make more games like that?

ha!

you need to make more than one game. You can't really just make one game and call it good. You have to work towards getting a lot of views on each project. The better and better you get the better your games become. Which means more views. Don't get me wrong you could maybe make one great game but I would instead work on making a bunch of funny goofy fun games and building from there.