diff --git a/pandalib-permissions/src/main/java/fr/pandacube/lib/permissions/DefaultPlayer.java b/pandalib-permissions/src/main/java/fr/pandacube/lib/permissions/DefaultPlayer.java
new file mode 100644
index 0000000..084cb2c
--- /dev/null
+++ b/pandalib-permissions/src/main/java/fr/pandacube/lib/permissions/DefaultPlayer.java
@@ -0,0 +1,70 @@
+package fr.pandacube.lib.permissions;
+
+import fr.pandacube.lib.util.Log;
+
+import java.util.UUID;
+
+/**
+ * Represents a dummy player in the permission system, that have no specific data, only inheriting from the default
+ * groups.
+ *
+ * The current implementation provides a player named {@code default.0} with an uuid of
+ * {@code fffdef17-ffff-b0ff-ffff-ffffffffffff}.
+ * Trying to set a permission data for this player will log a warning.
+ */
+/* package */ final class DefaultPlayer extends PermPlayer {
+
+
+	// a static UUID that ensure it will not collide with any player, either online or offline or floodgate:
+	// the version bits are set to B (11), that is offline mode (3) + alt (8) account, and alt account counter
+	// set to 0 that is usually impossible due to the counter starting at 1.
+	/* package */ static final UUID ID = new UUID(0xfffdef17_ffff_b0ffL, -1L);
+
+	/* package */ static final String NAME = "default.0";
+
+
+	/* package */ DefaultPlayer() {
+		super(ID);
+	}
+
+	@Override
+	public String getName() {
+		return NAME;
+	}
+
+	public void setGroup(String group) {
+		warnDefaultPlayerSetData();
+	}
+
+	public void addGroup(String group) {
+		warnDefaultPlayerSetData();
+	}
+
+	public void removeGroup(String group) {
+		warnDefaultPlayerSetData();
+	}
+
+	@Override
+	public void setSelfPrefix(String prefix) {
+		warnDefaultPlayerSetData();
+	}
+
+	@Override
+	public void setSelfSuffix(String suffix) {
+		warnDefaultPlayerSetData();
+	}
+
+	@Override
+	public void addSelfPermission(String permission, String server, String world) {
+		warnDefaultPlayerSetData();
+	}
+
+	@Override
+	public void removeSelfPermission(String permission, String server, String world) {
+		warnDefaultPlayerSetData();
+	}
+
+	private void warnDefaultPlayerSetData() {
+		Log.warning(new UnsupportedOperationException("Trying to set permission data of default player"));
+	}
+}
\ No newline at end of file
diff --git a/pandalib-permissions/src/main/java/fr/pandacube/lib/permissions/PermPlayer.java b/pandalib-permissions/src/main/java/fr/pandacube/lib/permissions/PermPlayer.java
index 9a6e628..c96c75d 100644
--- a/pandalib-permissions/src/main/java/fr/pandacube/lib/permissions/PermPlayer.java
+++ b/pandalib-permissions/src/main/java/fr/pandacube/lib/permissions/PermPlayer.java
@@ -10,7 +10,7 @@ import fr.pandacube.lib.permissions.SQLPermissions.EntityType;
 /**
  * Represents a player in the permission system.
  */
-public final class PermPlayer extends PermEntity {
+public sealed class PermPlayer extends PermEntity permits DefaultPlayer {
 	private final UUID playerId;
 	/* package */ PermPlayer(UUID id) {
 		super(id.toString(), EntityType.User);
diff --git a/pandalib-permissions/src/main/java/fr/pandacube/lib/permissions/Permissions.java b/pandalib-permissions/src/main/java/fr/pandacube/lib/permissions/Permissions.java
index 070156d..3872205 100644
--- a/pandalib-permissions/src/main/java/fr/pandacube/lib/permissions/Permissions.java
+++ b/pandalib-permissions/src/main/java/fr/pandacube/lib/permissions/Permissions.java
@@ -104,6 +104,19 @@ public class Permissions {
 		return new PermPlayer(playerId);
 	}
 
+	/**
+	 * Gets a dummy permission player object, that have no specific data, only inheriting from the default groups.
+	 *
+	 * The current implementation provides a player named {@code default.0} with an uuid of
+	 * {@code fffdef17-ffff-b0ff-ffff-ffffffffffff}.
+	 * Trying to set a permission data for this player will log a warning.
+	 * @return the default permission player.
+	 */
+	public static PermPlayer getDefaultPlayer() {
+		checkInitialized();
+		return new DefaultPlayer();
+	}
+
 	/**
 	 * Asks the permission system to preventively and asynchronously cache the data of the provided player.
 	 * This can be called as soon as possible when a player connects, so the permission data of the player are
diff --git a/pandalib-permissions/src/main/java/fr/pandacube/lib/permissions/PermissionsCachedBackendReader.java b/pandalib-permissions/src/main/java/fr/pandacube/lib/permissions/PermissionsCachedBackendReader.java
index c65d1b4..4891b96 100644
--- a/pandalib-permissions/src/main/java/fr/pandacube/lib/permissions/PermissionsCachedBackendReader.java
+++ b/pandalib-permissions/src/main/java/fr/pandacube/lib/permissions/PermissionsCachedBackendReader.java
@@ -26,6 +26,12 @@ import fr.pandacube.lib.util.Log;
 	/* package */ PermissionsCachedBackendReader() throws DBException {
 		clearAndResetCache();
 	}
+
+
+	/* package */ static final CachedPlayer DEFAULT_PLAYER = new CachedPlayer(DefaultPlayer.ID, null, null, Map.of());
+	static {
+		DEFAULT_PLAYER.usingDefaultGroups = true;
+	}
 	
 	
 	
@@ -58,6 +64,8 @@ import fr.pandacube.lib.util.Log;
 	}
 	
 	private CachedPlayer initPlayer(UUID playerId) throws DBException {
+		if (playerId.equals(DEFAULT_PLAYER.playerId))
+			return DEFAULT_PLAYER;
 		
 		SQLElementList<SQLPermissions> playerData = DB.getAll(SQLPermissions.class,
 				SQLPermissions.type.eq(EntityType.User.getCode())
@@ -196,6 +204,8 @@ import fr.pandacube.lib.util.Log;
 				cacheIsUpdating = false;
 				usersCache.invalidateAll();
 				fullPermissionsList = newFullPermissionsList;
+				DEFAULT_PLAYER.groups.clear();
+				DEFAULT_PLAYER.groups.addAll(getDefaultGroups());
 			}
 		} finally {
 			synchronized (this) {