What is the easiest and least expensive way to train with multiplayer in games?

Question

Programming

Actually, the crux of the matter is in the title. I am learning to create applications with interaction over the network. Is there a way to implement it in a simple test application without renting a server? If not, which ones and at what stage to take, so that it is commensurate with the needs

Answer 1

How bad are you at learning? Use p2p for example. Or deploy your own server.

Answer 2

Run the server on your computer, run the client on your computer. Connect to the server at 127.0.0.1

Answer 3

Find 2 computers at your place, make a server from one, and a client on the other. Let while on a local area network work. Then you can make both Wi-Fi work and put them close, but far from the router. There will be an emulation of a real network with delays and packet loss.

Answer 4

You can pick it up on your computer at 127.0.0.1, but if you want it to be accessible from outside, then you need a white ip address. And of course, you can look for free vps, amazon, for example, offers a year for a test. They really need a card for verification, I used a virtual qiwi, which I put a dollar on, amazon took it off and put it back. But in the end I was banned there anyway, because I came from the Crimean IP :(