Tokyo Gore Police is pretty fun.

You can close signups on PeerTube and just run it for one channel. I’ve been doing something similar minus the YouTube mirroring. Honestly works well and is a pretty great solution. Not what you’re asking for, but it is a possible solution.

Looks more like a moose flying backwards with blood coming out of its head

Second one has to be Zangar Marsh. I shouldn’t still remember that place.