Maps generated in other players' games can be downloaded by the player and opened in his or her copy of the game.
Saved worlds are stored in different locations depending on the operating system. It is currently not possible to select where the Minecraft data folder, and thus the saved worlds folder, is stored.
Prior to Beta 1.3, there were five world slots, and custom names were not possible. To use more than five worlds then, it was required to rename and move folders. This is no longer necessary; there can be theoretically any number of worlds, each with their own names.
Locating Saved Worlds
Any OS
- Open the game.
- Click on Mods and Texture packs in the main menu.
- Click Open texture pack folder.
- Go one directory level up (the folder called .minecraft).
- Enter the folder named saves.
Windows
In Windows Explorer, type in the address bar %appdata%\.minecraft\saves. Alternatively this can be entered in the Run dialogue box (Start > Run... or Windows+R).
Mac
While in finder go to Go -> Go to Folder or press [COMMAND] + [SHIFT] + G then enter ~/Library/Application Support/minecraft/saves.
Linux
Type ~/.minecraft/saves/ in your file manager's address bar, or in the terminal type cd ~/.minecraft/saves.