Multiplayer where most advanced action is a chat box?

Just wondering if that would have any problems. I don’t know much about BGE. I’m wondering if a multiplayer game where the most advanced action over a network would be a simple text box is feasible.

If you learn python, this is definitely possible, and not too difficult.
If you don’t learn python, then it’s impossible in the BGE.

I’m learning python so this is not an issue.

Mind perhaps giving a basic explanation of this or dropping me a link to something on this topic?
I reiterate, for my needs the most advanced thing is a contiguous chat box and a set of updated variables on all clients. The amount of “players” is 16.

Even just a chat system between two players is pretty complex.

Here’s some source code for a simple messaging app made in Python: