The listing, Lot of 3 Vintage Computer Games has ended.
WARNING: These are old, old games. Unless you are familiar with the operation of the original hardware there's a good chance you will not be able to make use of them. These games are provided AS IS as I have no way to test them.
WARNING: The box for Golden Path is pretty grimy (to the point of almost disgusting). The insides appear mostly good but there appears to be dust and some foreign matter on the disks. I believe they should work but to be safe, assume this game might not. I'm only listing this on the off chance someone is looking for the manual, which appears to be in good shape.
Caverns of Mars - Atari 400/800 (floppy disk)
Golden Path - Atari ST (floppy disks)
Nautilus - Atari 400/800 (cassette)