I dont know about the ECS version (if there is one).
I believe the ECS version was on only two disks. I have it here... somewhere. It played amazingly well, considering the limited resourses of my A500. (1mb RAM, 2nd floppy drive)
Actually, it played better than the AGA version did on my 1200/030/16MB, etc... At least until the AGA patches to turn off the stupid fade-in/fade-out screens.