Skip to content
packs.
Contents

How to seed an osu! mappool torrent

Make a torrent of your osu! mappool pack in the browser, seed it from qBittorrent, and share the magnet link so players download from each other.

Last updated
On this page

To seed an osu! mappool torrent, make the torrent on your pack's page, unzip the same pack's zip, and open the .torrent in qBittorrent with the unzipped folder's parent as the save location. qBittorrent finds every file already there and starts seeding. packs builds the torrent in your browser; your computer does the sharing.

Steps

#
  1. Download the maps. Open your pack (New pack, a pack key, or a saved pack) and in the "Download" card press "Download maps". Wait until every map is ready.
  2. Save and unzip the zip. Press "Save .zip" and unzip it. You get one folder named after the pack, for example Spring Cup 2026 Quarterfinals, holding the numbered .osz files and pack.txt.
  3. Make the torrent. Press "Make torrent". Your browser fingerprints every file, which takes a few seconds for a small pack and up to a minute for a big one. Then press "Save .torrent" and copy the magnet link.
  4. Open it in qBittorrent. Open the .torrent file. Set the save location to the folder that holds the pack folder (not the pack folder itself), and keep "Skip hash check" off. qBittorrent checks the files, shows 100%, and starts seeding.
  5. Share the magnet link. Post the magnet link or the .torrent file wherever your players are. On a saved pack, press "Add magnet link to this pack" so it shows on the pack page for everyone.
  6. Keep seeding. Leave qBittorrent running until players have the pack. Every player who finishes can seed it too.

To download a pack someone else is seeding, see Download a pack with a torrent.

Tips

#
  • Make the zip and the torrent in the same browser, right after each other. They come from the same downloaded files, so they match exactly.
  • If you change the pack's name or maps, make a new torrent. The old one no longer matches, and a saved pack drops its old magnet links when you save those changes.
  • If the mirror updates a map later, a new torrent of the same pack gets a different magnet link.
  • Changing the download options (videos, backgrounds) gives different files, so a different torrent and magnet link.
  • Some networks block torrents. If nobody can connect, try seeding from another network.
  • Browser torrent apps can join through the WebSocket trackers, but desktop apps like qBittorrent are the reliable choice.