Soju is a free, GPL-licensed toolchain that runs Windows game launchers on Apple Silicon Macs — no CrossOver license needed. Battle.net, Diablo II: Resurrected and the Windows Steam client (with D3D11 games via DXMT) are verified in-game on an M4 Pro. Built from CodeWeavers published Wine sources plus Apples free Game Porting Toolkit. One-line installer or Homebrew tap. Docs explain root causes (AVX under Rosetta 2, Battle.net Agent signature checks) so other Wine projects can reuse them.
