The D100 Dungeon Computer Companion creator and developer Steve Weinrich has been looking after the software with regular updates, fixes etc. He has even brought the Computer Companion to macOS. If you wanted to give it a try on your mac, it is now ready and available over at STEAM.
I have Parallels for my Mac so was able to access "steam on windows" to play that way. I really have no other need for Parallels, though just renewed it in Sept. Next year will prob cancel it. Will be nice to play D100 on Steam natively in Mac OS. Thank you for continually updating this great game!
Great news. I can now use my desktop with the bigger screen to track my game.