: Historical links for legacy installers (versions 1.27 and earlier) are often archived on Official Blizzard Forum threads, though these may require manual patching up to 1.31.

Note: As of 2020, Blizzard Entertainment officially migrated all players to Reforged (Patch 1.32+). Patch 1.31 is a "Classic" legacy patch. To play it, you generally need to own the original CD keys or use specific archival tools.

Follow this guide meticulously to ensure a clean installation.

: Added 64-bit support for Windows and Mac, allowing the game to utilize more system memory for complex custom maps.