This is not accurate. This version of Wine can’t run 32-bit Windows apps on 10.15, but 64-bit apps do run. Also, CodeWeavers CrossOver can run 32 and 64-bit apps on 10.15.

Most old games however are 32-bit. Don't have time at the moment to test but I bet I lost UT2004 when I upgraded my Mac to 10.15...

You definitely did. It's a 16-year old game so it definitely was 32-bit unless someone created a port or an updated .exe using a newer Unreal version.

I'll admit this is a very niche usecase, but not even CrossOver runs 16 bit apps anymore (like Minesweeper for Windows 98). Luckily the Windows XP version is basically the same and is 32-bit.

Some more info on (part of?) the problem on the CodeWeaver blog: https://www.codeweavers.com/about/blogs/jwhite/2019/12/10/ce...

Hopefully Wine 6 will find a comfortable adaptation of the CrossOver 19 method.

Is that Wine 5 that won't work on Catalina?

Whilst the barest of bare anecdata, I can, e.g., run mineways.exe on Catalina 10.15.3 using wine64 4.0.2 (from homebrew) happily[1].

[1] Ok, you have to cancel the "bogus app move to bin?" prompt for both mineways.exe and vcruntime140_1.dll which is messy but I can live with that for OS emulation.

32 bit apps won’t work anymore. 64 are still okay.

Crossover works, and Wineskin + the Crossover engine works if SIP is turned off.

Allegedly Apple supported Codeweavers a bit.