DHT and Peer Exchange are just about good enough to download a torrent in the absence of a tracker, albeit with a much longer "spin up" time than usual. If tens

DHT and Peer Exchange are just about good enough to download a torrent in the absence of a tracker, albeit with a much longer "spin up" time than usual. If tens of thousands of people were all on one torrent, and most of them had DHT / PE enabled, it should work pretty well. And of course as cryptoz pointed out, there's no shortage of trackers to use. If more are needed, it would be cheap and easy to make a few yourself, opentracker should use almost no resources.