Nop, I think it's only for C64
I've never seen an Amiga version of it. The Apple II version should run well on an emulator.
If you are going to emulate it why not emulate a commodore product like a commodore 64 with VICE 64 or CCS 64. Oregon Trail Is definitely on the C64. I have an original c64 Oregon trail that came with my C64, it has two other game as well like a fur trapping game (about the French in the St Lawrence seaway and another I cannot remember. All the games were North American history games. It Probably has Apple II, CoCo (or TRS 80), VIC 20, Atari 400/800, and Ti 99/4A versions.
You also need Lemonade Stand while you are at it. I think this may go back as far as PET computers.
