If you are running an older Mac (macOS Mojave or earlier), you may still be able to use a native 1.12.1 Mac client found on community sites like getMaNGOS . Complete Mac Set-up using Wineskin - Nostalrius Begins
Modern macOS versions (Catalina and later) do not support 32-bit apps. Since the 1.12.1 client is 32-bit, it will not launch natively on recent macOS versions.
Better performance than the native Mac client on modern hardware.
A free option for personal use that can run Windows 11 for ARM, which then uses its own emulation to run the 32-bit WoW client. 3. The "Legacy" Mac Client
Wineskin and Crossover allow you to run the of the 1.12.1 client on your Mac by translating Windows commands into macOS commands.
Older software designed for Intel or PowerPC requires translation layers like Rosetta 2, which may not always work perfectly for legacy 32-bit games. How to Run WoW 1.12.1 on Modern macOS
For Apple Silicon users, running a virtualized instance of Windows is often the most stable method.
A paid solution that offers seamless Windows integration.
You typically download a tool like Wineskin Winery , create a "wrapper," and copy your 1.12.1 Windows game folder into it. 2. Virtualization (Parallels or VMware)