Blackthorne is a Blizzard classic from 1994 – just found it over here.
In order to play, install dosbox
sudo apt-get install dosbox vim ~/.dosbox/dosbox-0.74.conf
and modify the settings to the following changes
core=dynamic cycles=20000 sbtype=sbpro2
after that, unzip the game into a new directory, e.g. named ‘BLACK’
now run dosbox on that directory, mounting it as C: …
$ dosbox BLACK
in DOS, do
C:> dir C:> BLACK.EXE
enjoy an old-time classic 🙂