I'm not sure if you are aware, nethack is now hosted on github and commits are public https://github.com/NetHack/NetHack https://github.com/NetHack/NetHack The

I'm not sure if you are aware, nethack is now hosted on github and commits are public https://github.com/NetHack/NetHack https://github.com/NetHack/NetHack The 'Net' part of the project Nethack is so named because it was developed over the internet and discussed on the internet (newsgroups). It's the first game to be developed by multiple contributors over the internet and released on the internet that I am aware of. The 'Open' of OpenBSD is more towards your point: NetBSD was open source and made releases, but did not show public commit history. When Theo's private repository privileges were removed, he was unable to contribute any longer because his patches against the latest public source was too far behind the current private source, so they would be rejected, but he had no ability to bring it up to date. And so "Open" of OpenBSD is because the commits are public and open -- the first to share their VCS history publicly that I'm aware of. I believe they invented the first "anonymous cvs" system for this very purpose.