[nonameiguess]

I've mentioned before that my wife was going through stuff her mom sent her from the attic when they sold her childhood house and she found an SNES from 1991 and a bunch of old games, and they still work. She's been playing Legend of Zelda pretty regularly for years now on that thing. There's no reason it can't work at least until the material physically degrades to the point of being unfixable (which is not forever, but longer than most software otherwise lasts). Even if something about the regulatory environment changes, nobody is going to issue a recall on a 30+ year-old gaming console forcing you to turn it in.

[danbruc]

If you look at this from that angle, every software can be considered finished and the term becomes pretty meaningless. I can use it and it satisfies my needs, so it is finished. But what really happened here is that the entire system got abandoned - hardware, firmware and games running on top of it - and replaced with a new system and new version of Zelda. They could in principle have maintained the game, ported it to new hardware, improved the graphics, sound and gameplay to modern standards.