How do i add places to a game (through a script)?

i am making a server based game, and i finally finished it. i just need to add the servers. these 'servers' are joined through a main menu, then, once there are enough players joined, the game will add a new place to the game, and send all the players there. (Just like in conquerors 3: https://www.roblox.com/games/8377997/MIDDLE-EAST-FORMATIONS-The-Conquerors-3 and Tower battles: https://www.roblox.com/games/45146873/Tower-Battles) Thanks!