Multiplayer in Minecraft is available through direct game-to-game multiplayer, LAN play, local split screen, and servers (player-hosted and business-hosted). It enables multiple players to interact and communicate with each other on a single world.  Players can run their own servers, use a hosting provider, or connect directly to another player's game via Xbox Live. Single-player worlds have local area network support, allowing players to join a world on locally interconnected computers without a server setup. Minecraft multiplayer servers are guided by server operators (op for short), who have access to server commands such as setting the time of day and teleporting players. Operators can also set up restrictions concerning which usernames or IP addresses are allowed or disallowed to enter the server.  Multiplayer servers have a wide range of activities, with some servers having their own unique rules and customs. One of the largest and most popular servers is Hypixel, which is visited by over 14 million players. Player versus player combat (PvP) can be enabled to allow fighting between players.  Many servers have custom plugins that allow actions that are not normally possible. In 2013, Mojang announced Minecraft Realms, a server hosting service intended to enable players to run server multiplayer games easily and safely without having to set up their own.  Unlike a standard server, only invited players can join Realms servers, and these servers do not use IP addresses. Minecraft: Java Edition Realms server owners can invite up to twenty people to play on their server, with up to ten players online at a time. Minecraft Realms server owners can invite up to 3000 people to play on their server, with up to ten players online at one time.  The Minecraft: Java Edition Realms servers do not support user-made plugins, but players can play custom Minecraft maps. Minecraft Realms servers support user-made add-ons, resource packs, behavior packs, and custom Minecraft maps.  At Electronic Entertainment Expo 2016, it was announced that Realms would enable Minecraft to support cross-platform play between Windows 10, iOS, and Android platforms starting in June 2016, with Xbox One and Nintendo Switch support to come later in 2017, and support for virtual reality devices. On 31 July 2017, Mojang released the beta version of the update allowing cross-platform play.  Nintendo Switch support for Realms was released in July 2018.