How can you make it so you can go to multiple maps on one game?

Like murder mystery you can vote and go to that map.is there a way I could script that or is that something basic.

Store your maps inside game.ServerStorage. That way they won't be shown in the game, but you can make one appear by cloning it into the workspace like this :

game.ServerStorage.Map:clone().Parent = game.Workspace

You can either use one of those teleporty thingies, or wire up what Asleum said up there!