To be fair tho, technically it is dead when it has a player base less than 4500.
Warcraft 3 never died though, the custom games kept it alive and kicking. If you own a classic Reign of Chaos CD key, you must redeem your CD key on your account before you log in to the app. You must own either Warcraft III: Reforged or a classic Reign of Chaos CD key. Warcraft III (Classic or Reforged) is installed through the Desktop App. It is free once you have the keys (bought the game). Saw a post about it on /r/Warcraft and had to ask, I literally just bought this game and TFT 3 hours ago. To play Warcraft III you must have either a Reign of Chaos key or you must purchase Warcraft III: Reforged. The Frozen Throne was an expansion and it is now included for free in the base game: Reign of Chaos. The Frozen Throne keys cannot be used to play Warcraft III. Under Text Language and Spoken Language, select your language of choice.
How do I change the language on Warcraft 3?