"There's nothing to play!"

Gonna try to find a game starting with Z!

puts on hiking shoes

That's a great idea!

Unfortunately this one looks to be discontinued as of October. I linked to some other examples under another comment.

There appear to be mostly personal projects out there.

Disclaimer: I haven't dug into it yet to see which ones are good or available to the public.

Looks like the one pictured above was a project called Hall of Games, but they were only up for a few months and then shut down in October.

I'm seeing lots of personal projects (no doubt people vibe-coding for fun). Here's one on reddit from 3 days ago:

There's a more polished-looking one on steam called Boxroom, but it seems to have mixed reviews.