diff --git a/roles/terraria/tasks/main.yml b/roles/terraria/tasks/main.yml
index 8b1acb6..a068ea2 100644
--- a/roles/terraria/tasks/main.yml
+++ b/roles/terraria/tasks/main.yml
@@ -106,8 +106,7 @@
         mode: "0700"
     - name: Set up backup cronjob
       cron:
-        minute: "0"
-        hour: "*/2"
+        minute: "*/30"
         name: "ansible-backup-terraria-{{ terraria_name }}"
         job: "{{ terraria_root }}/{{ terraria_name }}/backup.sh >> {{ terraria_root }}/{{ terraria_name }}/backups.log 2>&1"
   become: yes
diff --git a/roles/terraria/templates/backup.sh b/roles/terraria/templates/backup.sh
index a02750a..8947a1b 100644
--- a/roles/terraria/templates/backup.sh
+++ b/roles/terraria/templates/backup.sh
@@ -11,7 +11,7 @@ set -e
 
 export TERRARIADIR="{{ terraria_root }}/{{ terraria_name }}"
 export OUTDIR="$TERRARIADIR/backups"
-retention=84 # 2-hour intervals, 7 days
+retention=144 # 30-minute intervals, 3 days
 
 # Sanity checks
 if ! [ -d "$OUTDIR" ]; then