diff --git a/backup.sh b/backup.sh
index 055c50d..ccba7cb 100644
--- a/backup.sh
+++ b/backup.sh
@@ -1 +1,15 @@
-#!/usr/bin/env bashset -euo pipefailWORLD_NAME="${WORLD_NAME:-Dedicated}"BACKUPDIR="${BACKUPDIR:-/backups}"ts=$(date +"%Y-%m-%d_%H-%M-%S")mkdir -p "${BACKUPDIR}"cp "/config/worlds_local/${WORLD_NAME}.db" "${BACKUPDIR}/${WORLD_NAME}_${ts}.db"cp "/config/worlds_local/${WORLD_NAME}.fwl" "${BACKUPDIR}/${WORLD_NAME}_${ts}.fwl"echo "Backup complete: ${BACKUPDIR}/${WORLD_NAME}_${ts}"
\ No newline at end of file
+backup_world() {
+  echo "[backup] backing up world directory..."
+  ts=$(date +"%Y-%m-%d_%H-%M-%S")
+  mkdir -p "${BACKUPDIR}"
+
+  world_dir="${UNITY3D_WORLDS}/worlds_local/${WORLD_NAME}"
+
+  if [ -d "${world_dir}" ]; then
+    zip -r "${BACKUPDIR}/${WORLD_NAME}_${ts}.zip" "${world_dir}"
+    echo "[backup] created ${BACKUPDIR}/${WORLD_NAME}_${ts}.zip"
+  else
+    echo "[backup] WARNING: world directory not found: ${world_dir}"
+  fi
+}
+