At the Worldwide Developers Conference, Apple announced the upcoming release of the next version on macOS, Catalina. This OS does not support 32bit apps, so the Mac version of D2 will stop working. It has only just been seeded to developers, so there will of course be more information coming in about what works before the expected release at the end of the year. As far as I can work out, D3 has been patched and the Mac client in now 64bit. I can’t see any word on the Blizzard forums about D2 though, unsurprisingly. I know we have several members playing on Mac, so I suggest starting to consider / try possible solutions, assuming you want to keep playing. Possible options: 1. Wine Much quicker than running in virtualisation. May be issues with 64 bit version of Wine for MacOS, I am still investigating this. 1b. Wine derivatives PlayOnMac Winebottler I’m not looking at these currently. These both use their own Wine installations, but are typically less well maintained than Wine. 2. Virtualisation VMWare Fusion / Parallels / Virtual Box (although I have seen posts VB is not currently working in pre-releases of Catalina) I have VMWare running Windows 7 and it is playable for PvM, but it was unplayable for PvP. I guess you could also install MacOS in a VM, but I haven’t tried it. 3. Bootcamp with Windows 7+ The fastest solution, but you need to reboot to play then reboot again when you are done. Note also Windows 7 support ends in January 2020. 4. Pray Blizzard makes a 64 bit version Maybe we will see a D2 remastered which solves all the problems, seems unlikely though. 5. Don't upgrade to Catalina Waiting is not possible for everyone, but this will ensure you D2 works whilst others sort out a solution. There is more info in the D2 and Macs thread, from about page 4 - This is essentially the same issue we had when Apple dropped Rosetta support. I will keep this thread updated with info as I find it.