"the data is based on analysis of annual and quarterly financial reports of a number of relevant publicly listed companies and includes various estimates and assumptions."
Maybe not but Tencent is the biggest game company in China and with the huge Chinese market alone, they already made a lot of money by titles like LoL, Crossfire, D & F etc.
Comments
"the data is based on analysis of annual and quarterly financial reports of a number of relevant publicly listed companies and includes various estimates and assumptions."
same as everyone else reports basically.
I'm not sure that I would trust any rankings where Internet Service Providers and Social Media companies are listed as "game companies".