It plays like a dream on my Mac
And in double graphics resolution and improved sound as well. (LucasArts put out things as 'Mac Enhanced' back in those days)
(it is amazing that although the MacOS has gone through a major kernel shift, and the processor from CISC to RISC, that it still plays great, while the PC version, despite seeing much more minor OS and CPU changes, doesn't)
I actually played through the first four levels after completing the 3-level DFMod demo.