The egoboo sourceforge project is no longer being maintained. It has been forked to github. Nightly builds are available at: https://github.com/egoboo/egoboo/releases There are no, new stable releases as yet, but the sourceforge version is suffering from a number of issues that make it unplayable (at least on my machine) so adding the new source of nightly builds would likely be a significant improvement.
Proposing either a live ebuild -9999 or a snapshot version as per https://devmanual.gentoo.org/ebuild-writing/file-format/index.html#file-naming-rules .
I want to see that the fork isn't just a short-lived whim before putting it into portage. Seeing some stable releases would help with that impression.
If it makes any difference, I found out about the fork from the sourceforge page for the old project. Also, my entire reason for going looking was that, with modern versions of SDL, the version currently in the tree seems to interpret both up and down arrow keys as down and both left and right arrow keys as right. While not completely unplayable, it's certainly not particularly winnable.
Mr. Bones, I think referring to it as a "fork" gave you the wrong impression. It isn't a fork as in a new project. It's the same, original project by the same author, but the author has just started using Github for the code repository. The homepage, however, remains on Sourceforge yet points to Github. In any case, as additional evidence that it isn't some fly-by-night whim, you can look at the commit log at https://github.com/egoboo/egoboo/commits/master and see that there has been frequent commit activity for the past few months since the project moved to Github (apparently in February), with the most recent commit only 3 days ago. I'd like to see a live ebuild since the last stable release was a year and a half ago, and the last preview release of the new codebase (moving from C to C++) was in February.
Had a look at the idea of 20180311 snapshot (current latest). I've managed to build it (needed a few fixes) and play (visuals are nicer), but didn't take long to start hitting random segmentation faults, see plenty a misc issues, and gamepad support hasn't been restored. Doesn't seem to have changed that much since 2016, most work went toward support libraries and code cleanups, and currently development appears stalled.