diff --git a/R/getCurrentWorld.R b/R/getCurrentWorld.R
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+++ b/R/getCurrentWorld.R
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+#' Get the name of the current world. 
+#' 
+#' @return the current world miner uses is working in.
+#'
+#'
+#' @examples
+#' \dontrun{
+#' mc_connect()
+#' currentWorld <- getCurrentWorld()
+#' playerWorld <- getPlayerWorld()
+#' if(currentWorld != playerWorld){
+#'    setWorld(playerWorld)
+#' }
+#' 
+#' }
+#' @seealso [getPlayerWorld()], [getWorlds()] and [setWorld()]
+#'
+#' @export
+getCurrentWorld <- function()
+{
+    out <- mc_sendreceive("getCurrentWorld()")
+    out
+    
+}
diff --git a/R/getPlayerWorld.R b/R/getPlayerWorld.R
new file mode 100644
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+++ b/R/getPlayerWorld.R
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+#' Get player world
+#'
+#' Get player world. The default is to get the world of the first player spawned
+#' in the game, but the world of other players can be gotten using the
+#' `player_id` argument.
+#'
+#' @param player_id  Integer giving the ID of a player. You can find IDs of all
+#'   current players using [getPlayerIds()].
+#'
+#' @return The worldname a player is in.
+#'
+#'
+#' @examples
+#' \dontrun{
+#' mc_connect()
+#' getPlayerWorld()
+#'
+#' player <- getPlayerIds()[1]
+#' getPlayerWorld(player)
+#' }
+#'
+#' @seealso [getWorlds()] and [setWorld()]
+#'
+#' @export
+getPlayerWorld <- function(player_id = NULL)
+{
+
+  if(is.null(player_id)){
+    out <- mc_sendreceive("player.getWorld()")
+  } else {
+    out <- mc_sendreceive(merge_data("player.getWorld", player_id))
+  }
+    out
+}
diff --git a/R/getWorlds.R b/R/getWorlds.R
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+++ b/R/getWorlds.R
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+#' Get a vector of all worlds recognized by Spigot. 
+#' 
+#' @return A vector containing all worlds recognized by Spigot.
+#'
+#' @examples
+#' \dontrun{
+#' mc_connect()
+#' worlds <- getWorlds()
+#' setWorld(worlds[1])
+#' }
+#' @seealso [getPlayerWorld()], [getCurrentWorld()] and [setWorld()]
+#'
+#' @export
+getWorlds <- function()
+{
+    result <- mc_sendreceive("getWorlds()")
+    out <- strsplit(result, split = ',')
+    out[[1]]
+    
+}
diff --git a/R/setWorld.R b/R/setWorld.R
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+++ b/R/setWorld.R
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+#' Set world
+#'
+#' Get the world that miner uses for its locations. The default is the "normal" overworld,
+#' but by using this command with a worldname as parameter, the world that is used for locations gets changed
+#'
+#' @param world  The world you want to change to. You can find IDs of all
+#'   worlds using [getWorlds()], or the world a player is in by using [player.getWorld()].
+#'   
+#'
+#' @examples
+#' \dontrun{
+#' mc_connect()
+#' world <- getPlayerWorld()
+#' setWorld(world)
+#'
+#' }
+#'
+#' @seealso [getWorlds()], [getCurrentWorld()] and [player.getWorld()]
+#'
+#' @export
+setWorld <- function(world)
+{
+   if (is.null(world) || is.na(world)){
+    
+     "[error]: no input given!"
+    
+   } else {
+     
+     out <- mc_sendreceive(merge_data("setWorld", world))
+     out
+
+   }
+     
+     
+   
+    
+}