Warcraft III: The Frozen Throne is no longer available as a standalone "free" official download from Blizzard. It has been integrated into , which requires a purchase to play the updated version on modern Battle.net servers. However, if you already own a classic CD key, you can still register and download it through your Blizzard Account settings. How to Play DotA (Warcraft III)
Blizzard allows anyone to download and play Warcraft III for via the Public Test Realm (PTR) . There are two catches: Warcraft III: The Frozen Throne is no longer