How to make an analogue of Hamachi?

Question

Computer networks

How to make your own analogue of Hamachi, in order, for example, to unite 10 people in a local game
Please answer more clearly, I’m not very oriented in this topic)

Answer 1

take vps set up openvpn profit

Answer 2

Or rent a vps or on your PC (if the provider gives a white IP)
Next, raise the openvpn server
Well, clients must connect to it

Answer 3

Are you sure you need "your"? Zerotier/tailscale or their free implementations (free analogues). For free - you need your own vps acting as a coordination server, given that Oracle gives free vps - why not. Enough even dead

Answer 4

Redmin VPN is a great analog, free, and no hassle!