One of my many hobbies is playing online games.
Usually I buy my games online from steam.

In order to game you need the following:

A gaming Computer

You must have a good gaming computer so that way you can download any games.

A good Internet connection

you must have a good internet provider so that way you can a fast connection and no lagging.

You need a good where you can purchase games

I always buy my games from steam.com.
they always have good deals on games especially on holidays so don't forget to buy games from this season.
As well they have very good deals during their summer sale.

Video of Steam secret

Video on How to use steam

Link Buttons to various websites to buy games