diff --git a/src/main/java/de/butzlabben/world/util/PapiExtension.java b/src/main/java/de/butzlabben/world/util/PapiExtension.java
index a61cab1..a3d1f9e 100644
--- a/src/main/java/de/butzlabben/world/util/PapiExtension.java
+++ b/src/main/java/de/butzlabben/world/util/PapiExtension.java
@@ -10,7 +10,10 @@ import org.bukkit.Bukkit;
 import org.bukkit.OfflinePlayer;
 import org.bukkit.World;
 import org.bukkit.entity.Player;
+import org.jetbrains.annotations.NotNull;
 
+import java.util.ArrayList;
+import java.util.List;
 import java.util.Objects;
 
 public class PapiExtension extends PlaceholderExpansion {
@@ -18,26 +21,45 @@ public class PapiExtension extends PlaceholderExpansion {
     private final WorldSystem worldSystem = WorldSystem.getInstance();
 
     @Override
-    public String getIdentifier() {
+    public @NotNull String getIdentifier() {
         return "worldsystem";
     }
 
     @Override
-    public String getAuthor() {
+    public @NotNull String getAuthor() {
         return "Butzlabben";
     }
 
     @Override
-    public String getVersion() {
+    public @NotNull String getVersion() {
         return worldSystem.getDescription().getVersion();
     }
 
     @Override
     public String onRequest(OfflinePlayer p, String params) {
         DependenceConfig config = new DependenceConfig(p);
+
+        String[] args = params.split("_");
+        if (args.length == 3 && args[0].equalsIgnoreCase("world")
+                && args[1].equalsIgnoreCase("member")){
+
+            Player playerOnline = p.getPlayer();
+            if(playerOnline == null) return "none";
+            WorldConfig wc = WorldConfig.getWorldConfig(playerOnline.getWorld().getName());
+            List<String> members = new ArrayList<>(wc.getMembersWithNames().values());
+            int member;
+            try {
+                member = Integer.parseInt(args[2]);
+            } catch (NumberFormatException e){
+                throw new IllegalArgumentException("No placeholder named\"" + getIdentifier() + "_" + params + "\" is known");
+            }
+
+            return members.get(member);
+        }
         switch (params) {
             case "has_world":
                 return new DependenceConfig(p).hasWorld() + "";
+// @@ -48,16 +69,16 @@ public String onRequest(OfflinePlayer p, String params) {
             case "is_creator":
                 WorldPlayer player = new WorldPlayer(Objects.requireNonNull(Bukkit.getPlayer(p.getUniqueId())));
                 if (!player.isOnSystemWorld())
@@ -48,16 +70,16 @@ public class PapiExtension extends PlaceholderExpansion {
                     return "none";
                 else
                     return config.getWorldname();
-            case "world_of_player_loaded":
+            case "world_loaded":
                 if (!config.hasWorld())
                     return "none";
-                return SystemWorld.getSystemWorld(config.getWorldname()).isLoaded() + "";
+               return Objects.requireNonNull(SystemWorld.getSystemWorld(config.getWorldname()).isLoaded() + "";
             case "pretty_world_name":
                 if (!p.isOnline()) {
                     if (!config.hasWorld()) {
                         Player p1 = p.getPlayer();
                         if (p1 != null && p1.isOnline())
-                            return p1.getLocation().getWorld().getName();
+                            return Objects.requireNonNull(p1.getLocation().getWorld().getName();
                         return "none";
                     }
                     return config.getOwner().getName();