You might be interested to know that, as luck would have it, this was the first issue I picked up when scrolling through looking for a good introductory task to get used to the project: https://github.com/LemmyNet/lemmy/pull/3168
So this might change in the not-too-distant future (I haven't started doing any frontend work to support it yet though).
I remember playing one of these as a Flash app when I was a teenager and I've never since found anything that quite scratches the same itch (or, like you say, ever actually met anyone else who's played them).