Yep, with a flash of inspiration, I found it via... google! I've been able to play it, but loading it on and running it from my Compact Flash faux-Profile (via BOS) ends up with a Pascal stack overflow. At least it runs from floppy.

The graphics make use of programmable character sets - so the creatures are built up of a matrix of characters (maybe 2x4 or 3x6 - I'm not sure now). The screen is 40 columns, and in color. Trees are built up of simple squares (no special rounding anywhere).