Can anyone help on AlvinBlox How to make a sword game?

Overall, up to episode 3, I was able to basically start understanding how coding works even though I was just copying it down. I just wanted a game that my friends and I could play on and it felt pretty cool for the game to be made by me. But once I realized this code script or text or line or whatever (I don't know what it is called. I am pretty new to this), was outdated, I couldn't find an alternative to it.

repeat wait(1) until game.Players.Numplayers >=2

If you need anymore details, I'll be open to providing them. I really have no clue how to format these questions.

You can do:

repeat wait(1) until #game.Players:GetChildren() >= 2

So basically the script will get all the children and create the table and put all children to it then count the number of member in that table