I'm hoping maybe people will remember the game FeralHeart. Albeit, it was much less of a game and moreso an open world chatroom where you could make a canine/feline avatar. It was like THE place for wolf pack and warrior cat RPs. I always loved the visual elements-- you could emote, make your own world to RP in, and the whole thing had a lot of customizing elements.
I used to enjoy the map building aspect of it, for those that remember. I never did get a large scale group going back then, but I'd make worlds to show to my friends and we'd have a blast running around in them. I downloaded a LOT of assets at one point-- some old buildings that I chucked into a server to give it a post-apocalyptic vibe. I also just thought it was cool having building options as opposed to just caves.
I don't really know what happened, but FeralHeart seemed to just... vanish one day. Like, it just stopped working. At least, that's just from what I remember-- it's been years. I've heard people say it still exists, kind of-- The game got new servers and has been brought back by some of the older admins/mods. Still need to look into it, but I'm curious to see if anyone remembers it in it's prime and if they might even still play it in it's rewritten(?) state.