Maybe try building from source? The code is here:

https://github.com/jasonrohrer/SleepIsDeath

The latest SleepIsDeath isn't compatible with the latest minorGems code unfortunately, so you might need to make some modifications.

https://github.com/jasonrohrer/minorGems

The build process is like this:

  clone both repos
  cd SleepIsDeath
  ./configure
  make -C gameSource

Maybe Neverwinter Nights in its DM mode? I think there were a few new entries in the virtual tabletop space recently, but I forget what they're called.

GM mode for Divinity: The original sin 2 gets a lot of praise