In Minecraft, copying worlds can be a helpful tool. For example, if players make a realm to play with their friends, it will eventually expire.

In the Minecraft Java 1.19 update, players can either play the game alone or with other players in a multiplayer world.

If you enjoy creating custom worlds for Minecraft, you'll be a big fan of the 20W28A snapshot for Minecraft: Java Edition, which continues adding fixes and improvements to the Nether Update.