TIL that Blizzard Entertainment uses BitTorrent (via a proprietary client called the "Blizzard Downloader") to distribute content and patches for Diablo III, StarCraft II and World of Warcraft, including the games themselves :
Activision Blizzard stock jumps on positive regulation news
Blizzard Downloader | WoWWiki | Fandom
Blizzard Downloader - Wowpedia - Your wiki guide to the World of Warcraft
Battle.net download liegt bei 900kb/s trotz 50m leitung? Ich wollte heute cod warzone herunterladen, doch es sind 80gb bei 900kbits das dauert ja 200 stunden!? (Call of Duty, Blizzard, Blizzard Entertainment)
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