I was wondering if anyone could help me make a 2 player match system, where two people press a “join” button and verse eachother. The game is a rhythm game, and I can’t share it because I made it in turbowarp. Also, the game is not close to completion yet, so I don’t even know if this will make the Final Cut. But, I would still like to know how to make matches.

You should first search youtube usuallly youtube provides a lot of good tutorials for that but im not an native english speaker so it was quite hard for me to understand some of the writing

I recomend This youtube tutorial for a multiplayer system so u can get the player system for both players and with some modifying and some coding u could make it work for multiple parties
https://www.youtube.com/watch?v=1JTgg4WVAX8