How to stop a server from being teleported into if a certain amount of players are there?

Hello

I am making a horror style game that has a lobby with teleports into the place were the main game is located. I have a teleportation system in place but i want to make sure that no one else can get into the main game via the teleportation system when the game has already started.

Thanks

https://devforum.roblox.com/t/stop-players-from-joining-a-server/203713

This may help. this seems similar and has an answer, and im not an expert in RLUA by any means but maybe this could help!