I have been doing some work for other online communities in terms of archiving pieces of media (such as books, images, movies, etc.) that have fallen into the public domain (meaning that they are now free of any copyright restrictions) due to expiration, failure to renew, etc.
Because of the (relative) newness of the video game medium, I assumed for a long time that it would have been impossible that any video game would have fallen into the public domain in the United States accidentally. By "accidentally" I mean, "due to failure to comply with required formalities". But then I recently learned about this from [
https://commons.wikimedia.org/wiki/Commons:Hirtle_chart the Hirtle chart] that I may have skimmed over before, which reads:
"[Works first published in the US, that were published from] 1978 through 28 February 1989 [that were] published without a copyright notice, but without subsequent registration at the copyright office within 5 years [are] in the public domain due to failure to comply with required formalities."
In other words, it is quite possible that, if I could find some obscure games without copyright notices that were released before February 28, 1989, and do some research to confirm that they were not registered with the copyright office either, that we might be able to consider them among the rare examples of public domain video games.
So, since I'm admittedly no expert on games from the 70s or the 80s, I wanted to appeal to you guys to find some possible candidate games for me. To reiterate, the requirements I ask for are:
* The game must have been first published in the US before the exact date of February 28, 1989. If it was
first published elsewhere, such as Japan, it doesn't count.
* The game must lack a copyright notice within the game itself (at least), or on the cartridge art/box art/etc. if it was ever sold with those at all.
* Please also verify that if there are other versions of the game, for example if there was one version released for Atari and another for Commodore, that there is not another version of the game that includes a copyright notice. This would in effect make the public-domain status of the one version of the game without a notice moot.
If you know of or can find any games that meet these requirements, please let me know here and I can do the rest of the research (if you hadn't already done that yourself). Thanks!