@certifiedperson@weirder.earth @monsterblue

Maybe you'd be interested in Indomita, a Flight Rising style browser game where you play as a horse. It's nowhere near as polished, and is apparently quite difficult to learn/play, but it does seem to have a small but dedicated community of other people who enjoy being horses online.

I only know about it because of happening across this video: https://www.youtube.com/watch?v=4nUjEYhoBX0