Odjin said:
Abandonware
That's quite a gray-gray area you mentioned there. Honestly I don't know exactly how the legal situation works out there. Can rights on a game run out over time? Can it run out if the company producing the game doesn't exist anymore? What if the game can no more be bought anymore? There exists an association in the states trying to deny any use of games after their date ran out but what use is a game you can no more obtain unless from an abandonware site?
Actually, it's not gray at all, here in the US. Pretty much all games are still under copyright protection, unless they've been explicitly released by the authors/developers, and consequently, distribution of said titles is illegal.
Yes, copyrights are supposed to expire, however Berne convention compliance removed the need for specific registration, while there have been several extensions to the original term of 26 years. I believe the current term is 90 years, though I think the term was only 50 at the inception of the video game age. In fact, this was one of the arguments in the Grokster case, that while Congress did have the authority to extend copyright term limits, the perpetual extension of unexpired terms was unconstitutional, as the explicit intent of copyright was for a "limited term."
Now, as for the specific companies in question, many are still around, though in significantly different form (Atari, Activision), many are owned by EA (Origin), in some instances, the creators have reacquired the rights to their titles (Intellivision), and in many instances, the rights exist solely in the back of some file drawer in a liquidation company or bankruptcy attorney's file cabinet.
All that being said, while the illicit copying of abandonware is strictly illegal, when there's nothing being legitimately marketed, it's kind of hard to argue that there's any sort of moral infraction, though it can be argued that such distribution harms the development of any future markets for such titles. But that doesn't seem to have been the case to date.
There's an additional type of abandonware that rarely gets mentioned. Unlike original titles, games that rely on third party licenses are typically only licensed for a limited term, so all those Pern games, and Trillium software's sf adaptations will likely never see rerelease, as you would not only have to negotiate with the current holders of the game rights, you would also have to relicense the IP tie in.