Game Server

Question

Hi i have a home server. ( ubunto server )
i installed ssh service.

with my phone (Termux app) i connected to the ubunto server and tested it.
Server ip: 192.168.42.133

I want to find and figure out how game server comminucate with client.

how send data such as xp and position(x,y) and damage to all client.

Should i have web server?
How client send data to server and recieve data ?
What is the file format to send ? ( json or ... )
send data with http protocol or other protocol ?
shoud i create an Api for server ?
how i handle requests ?

What tools and concept i need ?
I want the base concept for researching.
please tell me your suggestion

Answer 1

i typically have just used a basic network socket for this kind of thing, and invented my own protocol.