How to create a server (online lobby) in the game dungeon hunter 3?

Question

Game development

Good day. Decided to play the mobile game dungeon hunter 3, but found that the developer of the game (gameloft) no longer supports it. The game disappeared from the play market, moreover, gameloft stopped supporting the online lobby.
I found a pirated version of the game. Actually, a question. How to make a virtual server so that my friends can connect to me in the lobby to play online? If for this you have to send additional files to friends to connect to me, then this is not a problem, they can download.
Downloaded the game from here: https://www.youtube.com/watch?v=t3TeHAUL0cg