diff --git a/src/main/java/org/mvplugins/multiverse/core/MultiverseCore.java b/src/main/java/org/mvplugins/multiverse/core/MultiverseCore.java
index ec1e1d12b..c729a0c5e 100644
--- a/src/main/java/org/mvplugins/multiverse/core/MultiverseCore.java
+++ b/src/main/java/org/mvplugins/multiverse/core/MultiverseCore.java
@@ -126,6 +126,7 @@ public void onDisable() {
         MultiverseCoreApi.shutdown();
         shutdownDependencyInjection();
         PluginServiceLocatorFactory.get().shutdown();
+        Logging.info("- Disabled");
         Logging.shutdown();
     }
 
diff --git a/src/main/java/org/mvplugins/multiverse/core/command/MVCommandCompletions.java b/src/main/java/org/mvplugins/multiverse/core/command/MVCommandCompletions.java
index 71acc4e50..167ef6c5f 100644
--- a/src/main/java/org/mvplugins/multiverse/core/command/MVCommandCompletions.java
+++ b/src/main/java/org/mvplugins/multiverse/core/command/MVCommandCompletions.java
@@ -53,7 +53,7 @@
 import org.mvplugins.multiverse.core.world.generators.GeneratorPlugin;
 import org.mvplugins.multiverse.core.world.generators.GeneratorProvider;
 
-import static org.mvplugins.multiverse.core.utils.StringFormatter.addonToCommaSeperated;
+import static org.mvplugins.multiverse.core.utils.StringFormatter.addOnToCommaSeparated;
 
 @Service
 public class MVCommandCompletions extends PaperCommandCompletions {
@@ -163,7 +163,7 @@ private Collection<String> completeWithPreconditions(
             }
         }
         if (context.hasConfig("multiple")) {
-            return addonToCommaSeperated(context.getInput(), handler.getCompletions(context));
+            return addOnToCommaSeparated(context.getInput(), handler.getCompletions(context));
         }
         return handler.getCompletions(context);
     }
@@ -334,7 +334,7 @@ private Collection<String> suggestPlayersArray(BukkitCommandCompletionContext co
                 matchedPlayers.add(name);
             }
         }
-        return addonToCommaSeperated(context.getInput(), matchedPlayers);
+        return addOnToCommaSeparated(context.getInput(), matchedPlayers);
     }
 
     private Collection<String> suggestSpawnCategoryPropsName(BukkitCommandCompletionContext context) {
diff --git a/src/main/java/org/mvplugins/multiverse/core/commands/CreateCommand.java b/src/main/java/org/mvplugins/multiverse/core/commands/CreateCommand.java
index acc880566..7be73b0a6 100644
--- a/src/main/java/org/mvplugins/multiverse/core/commands/CreateCommand.java
+++ b/src/main/java/org/mvplugins/multiverse/core/commands/CreateCommand.java
@@ -19,7 +19,6 @@
 
 import org.mvplugins.multiverse.core.command.LegacyAliasCommand;
 import org.mvplugins.multiverse.core.command.MVCommandIssuer;
-import org.mvplugins.multiverse.core.command.MVCommandManager;
 import org.mvplugins.multiverse.core.command.flag.CommandFlag;
 import org.mvplugins.multiverse.core.command.flag.CommandFlagsManager;
 import org.mvplugins.multiverse.core.command.flag.CommandValueFlag;
@@ -27,6 +26,7 @@
 import org.mvplugins.multiverse.core.command.flag.ParsedCommandFlags;
 import org.mvplugins.multiverse.core.locale.MVCorei18n;
 import org.mvplugins.multiverse.core.locale.message.MessageReplacement.Replace;
+import org.mvplugins.multiverse.core.utils.StringFormatter;
 import org.mvplugins.multiverse.core.utils.result.Attempt.Failure;
 import org.mvplugins.multiverse.core.world.LoadedMultiverseWorld;
 import org.mvplugins.multiverse.core.world.WorldManager;
@@ -53,7 +53,7 @@ class CreateCommand extends CoreCommand {
     @CommandPermission("multiverse.core.create")
     @CommandCompletion("@empty @environments @flags:groupName=" + Flags.NAME)
     @Syntax("<name> <environment> [--seed <seed> --generator <generator[:id]> --world-type <worldtype> --adjust-spawn "
-            + "--no-structures --biome <biome>]")
+            + "--no-structures --biome <biome> --properties <prop1=value1,prop2=value2,...>]")
     @Description("{@@mv-core.create.description}")
     void onCreateCommand(
             MVCommandIssuer issuer,
@@ -68,7 +68,7 @@ void onCreateCommand(
 
             @Optional
             @Syntax("[--seed <seed> --generator <generator[:id]> --world-type <worldtype> --adjust-spawn "
-                    + "--no-structures --biome <biome>]")
+                    + "--no-structures --biome <biome> --properties <prop1=value1,prop2=value2,...>]")
             @Description("{@@mv-core.create.flags.description}")
             String[] flagArray) {
         ParsedCommandFlags parsedFlags = flags.parse(flagArray);
@@ -78,14 +78,15 @@ void onCreateCommand(
         issuer.sendInfo(MVCorei18n.CREATE_LOADING);
 
         worldManager.createWorld(CreateWorldOptions.worldName(worldName)
-                .biome(parsedFlags.flagValue(flags.biome, ""))
-                .environment(environment)
-                .seed(parsedFlags.flagValue(flags.seed))
-                .worldType(parsedFlags.flagValue(flags.worldType, WorldType.NORMAL))
-                .useSpawnAdjust(!parsedFlags.hasFlag(flags.noAdjustSpawn))
-                .generator(parsedFlags.flagValue(flags.generator, ""))
-                .generatorSettings(parsedFlags.flagValue(flags.generatorSettings, ""))
-                .generateStructures(!parsedFlags.hasFlag(flags.noStructures)))
+                        .biome(parsedFlags.flagValue(flags.biome, ""))
+                        .environment(environment)
+                        .seed(parsedFlags.flagValue(flags.seed))
+                        .worldType(parsedFlags.flagValue(flags.worldType, WorldType.NORMAL))
+                        .useSpawnAdjust(!parsedFlags.hasFlag(flags.noAdjustSpawn))
+                        .generator(parsedFlags.flagValue(flags.generator, ""))
+                        .generatorSettings(parsedFlags.flagValue(flags.generatorSettings, ""))
+                        .generateStructures(!parsedFlags.hasFlag(flags.noStructures))
+                        .worldPropertyStrings(StringFormatter.parseCSVMap(parsedFlags.flagValue(flags.properties))))
                 .onSuccess(newWorld -> messageSuccess(issuer, newWorld))
                 .onFailure(failure -> messageFailure(issuer, failure));
     }
@@ -180,6 +181,10 @@ private Flags(
                 .addAlias("-b")
                 .completion(input -> biomeProviderFactory.suggestBiomeString(input))
                 .build());
+
+        private final CommandValueFlag<String> properties = flag(CommandValueFlag.builder("--properties", String.class)
+                .addAlias("-p")
+                .build());
     }
 
     @Service
diff --git a/src/main/java/org/mvplugins/multiverse/core/config/CoreConfig.java b/src/main/java/org/mvplugins/multiverse/core/config/CoreConfig.java
index d8a1bec15..9aaf5fc4c 100644
--- a/src/main/java/org/mvplugins/multiverse/core/config/CoreConfig.java
+++ b/src/main/java/org/mvplugins/multiverse/core/config/CoreConfig.java
@@ -186,6 +186,16 @@ public boolean getEnforceFlight() {
         return configHandle.get(configNodes.enforceFlight);
     }
 
+    @ApiStatus.AvailableSince("5.5")
+    public Try<Void> setGamemodeAndFlightEnforceDelay(int delayTicks) {
+        return configHandle.set(configNodes.gamemodeAndFlightEnforceDelay, delayTicks);
+    }
+
+    @ApiStatus.AvailableSince("5.5")
+    public int getGamemodeAndFlightEnforceDelay() {
+        return configHandle.get(configNodes.gamemodeAndFlightEnforceDelay);
+    }
+
     @ApiStatus.AvailableSince("5.3")
     public Try<Void> setApplyEntitySpawnRate(boolean applyEntitySpawnRate) {
         return configHandle.set(configNodes.applyEntitySpawnRate, applyEntitySpawnRate);
@@ -641,6 +651,16 @@ public EventPriority getEventPriorityPlayerTeleport() {
         return configHandle.get(configNodes.eventPriorityPlayerTeleport);
     }
 
+    @ApiStatus.AvailableSince("5.5")
+    public Try<Void> setEventPriorityPlayerWorldChange(EventPriority eventPriorityPlayerWorldChange) {
+        return configHandle.set(configNodes.eventPriorityPlayerWorldChange, eventPriorityPlayerWorldChange);
+    }
+
+    @ApiStatus.AvailableSince("5.5")
+    public EventPriority getEventPriorityPlayerWorldChange() {
+        return configHandle.get(configNodes.eventPriorityPlayerWorldChange);
+    }
+
     public Try<Void> setBukkitYmlPath(String bukkitYmlPath) {
         return configHandle.set(configNodes.bukkitYmlPath, bukkitYmlPath);
     }
diff --git a/src/main/java/org/mvplugins/multiverse/core/config/CoreConfigNodes.java b/src/main/java/org/mvplugins/multiverse/core/config/CoreConfigNodes.java
index 0dc3f6dda..ce857c86e 100644
--- a/src/main/java/org/mvplugins/multiverse/core/config/CoreConfigNodes.java
+++ b/src/main/java/org/mvplugins/multiverse/core/config/CoreConfigNodes.java
@@ -135,6 +135,16 @@ private <N extends Node> N node(N node) {
             .name("enforce-flight")
             .build());
 
+    final ConfigNode<Integer> gamemodeAndFlightEnforceDelay = node(ConfigNode.builder("world.gamemode-and-flight-enforce-delay", Integer.class)
+            .comment("")
+            .comment("Sets the delay in ticks before Multiverse enforces gamemode and flight ability on world change.")
+            .comment("Increase this value if you are experiencing issues with other plugins overriding gamemode or flight ability.")
+            .comment("Or set to 0 to enforce immediately during world change event.")
+            .defaultValue(1)
+            .name("gamemode-and-flight-enforce-delay")
+            .suggester((sender -> List.of("0", "1", "2", "5", "10")))
+            .build());
+
     final ConfigNode<Boolean> applyEntitySpawnRate = node(ConfigNode.builder("world.apply-entity-spawn-rate", Boolean.class)
             .comment("")
             .comment("Sets whether Multiverse will apply the world's entity `tick-rate` config in worlds.yml.")
@@ -545,6 +555,18 @@ private <N extends Node> N node(N node) {
                             "full effect after a server restart."))
             .build());
 
+    final ConfigNode<EventPriority> eventPriorityPlayerWorldChange = node(ConfigNode.builder("event-priority.player-changed-world", EventPriority.class)
+            .defaultValue(EventPriority.NORMAL)
+            .name("event-priority-player-changed-world")
+            .comment("")
+            .comment("This config option defines the priority for the PlayerChangedWorldEvent.")
+            .onLoadAndChange((oldValue, newValue) ->
+                    eventPriorityMapper.get().setPriority("mvcore-player-changed-world", newValue))
+            .onChange((sender, oldValue, newValue) ->
+                    sender.sendMessage(ChatColor.YELLOW + "'event-priority.player-changed-world' config option will only take " +
+                            "full effect after a server restart."))
+            .build());
+
     private final ConfigHeaderNode miscHeader = node(ConfigHeaderNode.builder("misc")
             .comment("")
             .comment("")
diff --git a/src/main/java/org/mvplugins/multiverse/core/config/node/ListConfigNode.java b/src/main/java/org/mvplugins/multiverse/core/config/node/ListConfigNode.java
index 453c7a6e0..c68468bde 100644
--- a/src/main/java/org/mvplugins/multiverse/core/config/node/ListConfigNode.java
+++ b/src/main/java/org/mvplugins/multiverse/core/config/node/ListConfigNode.java
@@ -120,9 +120,9 @@ private void setDefaults() {
     private void setDefaultSuggester() {
         if (itemSuggester instanceof SenderNodeSuggester senderItemSuggester) {
             this.suggester = (SenderNodeSuggester)(sender, input) ->
-                    StringFormatter.addonToCommaSeperated(input, senderItemSuggester.suggest(sender, input));
+                    StringFormatter.addOnToCommaSeparated(input, senderItemSuggester.suggest(sender, input));
         } else {
-            this.suggester = input -> StringFormatter.addonToCommaSeperated(input, itemSuggester.suggest(input));
+            this.suggester = input -> StringFormatter.addOnToCommaSeparated(input, itemSuggester.suggest(input));
         }
     }
 
diff --git a/src/main/java/org/mvplugins/multiverse/core/listeners/MVPlayerListener.java b/src/main/java/org/mvplugins/multiverse/core/listeners/MVPlayerListener.java
index 9d459e9bc..5397ba417 100644
--- a/src/main/java/org/mvplugins/multiverse/core/listeners/MVPlayerListener.java
+++ b/src/main/java/org/mvplugins/multiverse/core/listeners/MVPlayerListener.java
@@ -7,9 +7,7 @@
 
 package org.mvplugins.multiverse.core.listeners;
 
-import java.util.Map;
 import java.util.Objects;
-import java.util.concurrent.ConcurrentHashMap;
 
 import com.dumptruckman.minecraft.util.Logging;
 import io.vavr.control.Option;
@@ -257,9 +255,9 @@ private void teleportToDestinationOnJoin(Player player, DestinationInstance<?, ?
      * @param event The Event that was fired.
      */
     @EventMethod
-    @DefaultEventPriority(EventPriority.MONITOR)
+    @EventPriorityKey("mvcore-player-changed-world")
+    @DefaultEventPriority(EventPriority.NORMAL)
     void playerChangedWorld(PlayerChangedWorldEvent event) {
-        // Permissions now determine whether or not to handle a gamemode.
         this.handleGameModeAndFlight(event.getPlayer(), event.getPlayer().getWorld());
     }
 
@@ -402,21 +400,31 @@ void playerPortal(PlayerPortalEvent event) {
     }
 
     /**
-     * Handles the gamemode for the specified {@link Player}.
+     * Handles the gamemode for the specified {@link Player}. Delays the enforcement if configured to do so
+     * to ensure multiverse has final say over other plugins changing gamemodes.
      *
      * @param player The {@link Player}.
      * @param world  The {@link World} the player is supposed to be in.
      */
     private void handleGameModeAndFlight(final Player player, World world) {
-        // We perform this task one tick later to MAKE SURE that the player actually reaches the
-        // destination world, otherwise we'd be changing the player mode if they havent moved anywhere.
-        this.server.getScheduler().runTaskLater(this.plugin, () -> {
-            if (!player.isOnline() || !player.getWorld().equals(world)) {
-                return;
-            }
-            Logging.finer("Handling gamemode and flight for player %s in world '%s'", player.getName(), world.getName());
-            enforcementHandler.handleFlightEnforcement(player);
-            enforcementHandler.handleGameModeEnforcement(player);
-        }, 1L);
+        if (config.getGamemodeAndFlightEnforceDelay() <= 0) {
+            doGameModeAndFlightEnforcement(player, world);
+            return;
+        }
+        server.getScheduler().runTaskLater(
+                this.plugin,
+                () -> doGameModeAndFlightEnforcement(player, world),
+                config.getGamemodeAndFlightEnforceDelay()
+        );
+    }
+
+    private void doGameModeAndFlightEnforcement(Player player, World world) {
+        if (!player.isOnline() || !player.getWorld().equals(world)) {
+            Logging.finer("Player %s is no longer online or not in the expected world '%s'", player.getName(), world.getName());
+            return;
+        }
+        Logging.finer("Handling gamemode and flight for player %s in world '%s'", player.getName(), world.getName());
+        enforcementHandler.handleFlightEnforcement(player);
+        enforcementHandler.handleGameModeEnforcement(player);
     }
 }
diff --git a/src/main/java/org/mvplugins/multiverse/core/teleportation/BlockSafety.java b/src/main/java/org/mvplugins/multiverse/core/teleportation/BlockSafety.java
index f242ef880..0c29b75f4 100644
--- a/src/main/java/org/mvplugins/multiverse/core/teleportation/BlockSafety.java
+++ b/src/main/java/org/mvplugins/multiverse/core/teleportation/BlockSafety.java
@@ -132,6 +132,10 @@ public boolean canSpawnAtLocationSafely(@NotNull Location location) {
      */
     public boolean canSpawnAtBlockSafely(@NotNull Block block) {
         Logging.finest("Checking spawn safety for location: %s, %s, %s", block.getX(), block.getY(), block.getZ());
+        if (!block.getWorld().getWorldBorder().isInside(block.getLocation())) {
+            Logging.finest("Location is outside world border.");
+            return false;
+        }
         if (isUnsafeSpawnBody(block)) {
             // Player body will be stuck in solid
             Logging.finest("Unsafe location for player's body: " + block);
diff --git a/src/main/java/org/mvplugins/multiverse/core/utils/StringFormatter.java b/src/main/java/org/mvplugins/multiverse/core/utils/StringFormatter.java
index e4b34896a..acfe5da65 100644
--- a/src/main/java/org/mvplugins/multiverse/core/utils/StringFormatter.java
+++ b/src/main/java/org/mvplugins/multiverse/core/utils/StringFormatter.java
@@ -2,13 +2,17 @@
 
 import com.google.common.base.Strings;
 import com.google.common.collect.Sets;
+import org.jetbrains.annotations.ApiStatus;
+import org.jetbrains.annotations.Contract;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
+import org.jetbrains.annotations.Unmodifiable;
 
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collection;
 import java.util.List;
+import java.util.Map;
 import java.util.Set;
 import java.util.stream.Collectors;
 
@@ -30,15 +34,15 @@ private StringFormatter() {
      * @param list the list of strings to join. If the list is empty, an empty string is returned.
      * @return the concatenated string
      */
-    public static @NotNull String joinAnd(List<String> list) {
+    public static @NotNull String joinAnd(@Nullable List<String> list) {
         return join(list, ", ", " and ");
     }
 
-    public static @NotNull String join(Collection list, String separator) {
+    public static @NotNull String join(@Nullable Collection<?> list, @NotNull String separator) {
         if (list == null || list.isEmpty()) {
             return "";
         }
-        return list.stream().map(String::valueOf).collect(Collectors.joining(separator)).toString();
+        return list.stream().map(String::valueOf).collect(Collectors.joining(separator));
     }
 
     /**
@@ -50,7 +54,7 @@ private StringFormatter() {
      * @param lastSeparator the separator to use before the last element. For example, " and ".
      * @return the concatenated string
      */
-    public static @NotNull String join(List<String> list, String separator, String lastSeparator) {
+    public static @NotNull String join(@Nullable List<String> list, @NotNull String separator, @NotNull String lastSeparator) {
         if (list == null || list.isEmpty()) {
             return "";
         }
@@ -71,11 +75,30 @@ private StringFormatter() {
 
     /**
      * Appends a list of suggestions to the end of the input string, separated by commas.
+     *
      * @param input     The current input
      * @param addons    The autocomplete suggestions
      * @return A collection of suggestions with the next suggestion appended
+     *
+     * @deprecated Method name has a spelling error. Use {@link #addOnToCommaSeparated(String, Collection)} instead.
      */
+    @Deprecated(forRemoval = true, since = "5.5")
+    @ApiStatus.ScheduledForRemoval(inVersion = "6.0")
     public static Collection<String> addonToCommaSeperated(@Nullable String input, @NotNull Collection<String> addons) {
+        return addOnToCommaSeparated(input, addons);
+    }
+
+    /**
+     * Appends a list of suggestions to the end of the input string, separated by commas.
+     *
+     * @param input     The current input
+     * @param addons    The autocomplete suggestions
+     * @return A collection of suggestions with the next suggestion appended
+     *
+     * @since 5.5
+     */
+    @ApiStatus.AvailableSince("5.5")
+    public static Collection<String> addOnToCommaSeparated(@Nullable String input, @NotNull Collection<String> addons) {
         if (Strings.isNullOrEmpty(input)) {
             return addons;
         }
@@ -94,7 +117,7 @@ public static Collection<String> addonToCommaSeperated(@Nullable String input, @
      * @param args  The args to parse
      * @return The parsed args
      */
-    public static Collection<String> parseQuotesInArgs(String[] args) {
+    public static @NotNull Collection<String> parseQuotesInArgs(@NotNull String[] args) {
         List<String> result = new ArrayList<>(args.length);
         StringBuilder current = new StringBuilder();
         boolean inQuotes = false;
@@ -139,7 +162,28 @@ public static Collection<String> parseQuotesInArgs(String[] args) {
      * @param input The string to add quotes to
      * @return The quoted string
      */
-    public static String quoteMultiWordString(String input) {
-        return input.contains(" ") ? "\"" + input + "\"" : input;
+    @Contract("null -> null")
+    public static @Nullable String quoteMultiWordString(@Nullable String input) {
+        return input != null && input.contains(" ") ? "\"" + input + "\"" : input;
+    }
+
+    /**
+     * Parses a CSV string of key=value pairs into a map.
+     * E.g. "key1=value1,key2=value2" -> {key1=value1, key2=value2}
+     *
+     * @param input The CSV string to parse
+     * @return The parsed map
+     *
+     * @since 5.5
+     */
+    @ApiStatus.AvailableSince("5.5")
+    public static @Unmodifiable Map<String, String> parseCSVMap(@Nullable String input) {
+        if (Strings.isNullOrEmpty(input)) {
+            return Map.of();
+        }
+        return REPatterns.COMMA.splitAsStream(input)
+                .map(s -> REPatterns.EQUALS.split(s, 2))
+                .filter(parts -> parts.length == 2)
+                .collect(Collectors.toUnmodifiableMap(parts -> parts[0], parts -> parts[1]));
     }
 }
diff --git a/src/main/java/org/mvplugins/multiverse/core/world/WorldManager.java b/src/main/java/org/mvplugins/multiverse/core/world/WorldManager.java
index 08e259661..64a20179f 100644
--- a/src/main/java/org/mvplugins/multiverse/core/world/WorldManager.java
+++ b/src/main/java/org/mvplugins/multiverse/core/world/WorldManager.java
@@ -6,9 +6,7 @@
 import java.util.Arrays;
 import java.util.Collection;
 import java.util.Collections;
-import java.util.HashMap;
 import java.util.List;
-import java.util.Locale;
 import java.util.Map;
 import java.util.Objects;
 import java.util.concurrent.atomic.AtomicReference;
@@ -278,7 +276,16 @@ private Attempt<LoadedMultiverseWorld, CreateFailureReason> doCreateWorld(
                             generatorString,
                             options.biome(),
                             options.useSpawnAdjust()))
-                .peek(loadedWorld -> pluginManager.callEvent(new MVWorldCreatedEvent(loadedWorld)));
+                .peek(loadedWorld -> postCreateWorld(loadedWorld, options));
+    }
+
+    private void postCreateWorld(LoadedMultiverseWorld loadedWorld, CreateWorldOptions options) {
+        options.worldPropertyStrings().forEach((key, value) -> loadedWorld.getStringPropertyHandle()
+                .setPropertyString(key, value)
+                .onFailure(failure -> Logging.warning("Failed to set property '%s' to '%s' for world %s: %s",
+                        key, value, loadedWorld.getName(), failure.getMessage())));
+        pluginManager.callEvent(new MVWorldCreatedEvent(loadedWorld));
+        saveWorldsConfig();
     }
 
     /**
diff --git a/src/main/java/org/mvplugins/multiverse/core/world/options/CreateWorldOptions.java b/src/main/java/org/mvplugins/multiverse/core/world/options/CreateWorldOptions.java
index 9ea1d4ebf..68db0b636 100644
--- a/src/main/java/org/mvplugins/multiverse/core/world/options/CreateWorldOptions.java
+++ b/src/main/java/org/mvplugins/multiverse/core/world/options/CreateWorldOptions.java
@@ -3,8 +3,14 @@
 import co.aikar.commands.ACFUtil;
 import org.bukkit.World;
 import org.bukkit.WorldType;
+import org.jetbrains.annotations.ApiStatus;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
+import org.jetbrains.annotations.UnmodifiableView;
+
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Map;
 
 /**
  * Options for customizing the creation of a new world.
@@ -31,6 +37,7 @@ public final class CreateWorldOptions {
     private boolean useSpawnAdjust = true;
     private WorldType worldType = WorldType.NORMAL;
     private boolean doFolderCheck = true;
+    private final Map<String, String> worldPropertyStrings = new HashMap<>();
 
     /**
      * Creates a new {@link CreateWorldOptions} instance with the given world name.
@@ -260,4 +267,44 @@ public boolean useSpawnAdjust() {
     public boolean doFolderCheck() {
         return doFolderCheck;
     }
+
+    /**
+     * Sets a world property string key-value pair. Overwrites any existing key.
+     *
+     * @param key   The key of the world property string.
+     * @param value The value of the world property string.
+     * @return This {@link CreateWorldOptions} instance.
+     *
+     * @since 5.5
+     */
+    @ApiStatus.AvailableSince("5.5")
+    public @NotNull CreateWorldOptions worldPropertyString(@NotNull String key, @Nullable String value) {
+        this.worldPropertyStrings.put(key, value);
+        return this;
+    }
+
+    /**
+     * Sets multiple world property string key-value pairs. Overwrites any existing keys.
+     *
+     * @param worldProperties   A map of world property string key-value pairs.
+     * @return This {@link CreateWorldOptions} instance.
+     */
+    @ApiStatus.AvailableSince("5.5")
+    public @NotNull CreateWorldOptions worldPropertyStrings(@NotNull Map<@NotNull String, @Nullable String> worldProperties) {
+        this.worldPropertyStrings.putAll(worldProperties);
+        return this;
+    }
+
+    /**
+     * Gets an unmodifiable view of the world property strings. Use {@link #worldPropertyString(String, String)} and
+     * {@link #worldPropertyStrings(Map)} to modify the world property strings.
+     *
+     * @return An unmodifiable view of the world property strings.
+     *
+     * @since 5.5
+     */
+    @ApiStatus.AvailableSince("5.5")
+    public @UnmodifiableView @NotNull Map<String, String> worldPropertyStrings() {
+        return Collections.unmodifiableMap(worldPropertyStrings);
+    }
 }
diff --git a/src/test/java/org/mvplugins/multiverse/core/utils/StringFormatterTest.kt b/src/test/java/org/mvplugins/multiverse/core/utils/StringFormatterTest.kt
index b59ac1808..bd51a43c4 100644
--- a/src/test/java/org/mvplugins/multiverse/core/utils/StringFormatterTest.kt
+++ b/src/test/java/org/mvplugins/multiverse/core/utils/StringFormatterTest.kt
@@ -2,6 +2,7 @@ package org.mvplugins.multiverse.core.utils
 
 import kotlin.test.Test
 import kotlin.test.assertEquals
+import kotlin.test.assertNull
 
 class StringFormatterTest {
     @Test
@@ -42,5 +43,22 @@ class StringFormatterTest {
             "test",
             StringFormatter.quoteMultiWordString("test")
         )
+        assertNull(StringFormatter.quoteMultiWordString(null))
+    }
+
+    @Test
+    fun `StringFormatter parseCSVMap`() {
+        assertEquals(
+            emptyMap<String, String>(),
+            StringFormatter.parseCSVMap("")
+        )
+        assertEquals(
+            mapOf("key" to "value"),
+            StringFormatter.parseCSVMap("key=value")
+        )
+        assertEquals(
+            mapOf("key1" to "value1", "key2" to "value2", "key3" to "value3"),
+            StringFormatter.parseCSVMap("key1=value1,key2=value2,key3=value3")
+        )
     }
 }
diff --git a/src/test/resources/configs/fresh_config.yml b/src/test/resources/configs/fresh_config.yml
index 556916250..7fc906999 100644
--- a/src/test/resources/configs/fresh_config.yml
+++ b/src/test/resources/configs/fresh_config.yml
@@ -4,6 +4,7 @@ world:
   enforce-access: false
   enforce-gamemode: true
   enforce-flight: true
+  gamemode-and-flight-enforce-delay: 1
   apply-entity-spawn-rate: true
   apply-entity-spawn-limit: true
   auto-purge-entities: false
@@ -54,6 +55,7 @@ event-priority:
   player-respawn: low
   player-spawn-location: normal
   player-teleport: highest
+  player-changed-world: normal
 
 misc:
   bukkit-yml-path: bukkit.yml