Today I just started my development in game industry.

Are you an indie game dev, or are you working with an established studio?

Also, what do you think about games like agar.io, braains.io, and generals.io? They're all simple MMO games made by indie devs, and they're all getting tons of traffic and raking in ad money. It's pretty inspiring to me.

Please give some more info?

Feel free to ask about the activities.