Every Day Is Night

arenas, mostly, if I remember correctly

It seems like everything was included (both arenas and maps). Although, I'm not that much of an expert on the fifth game. There used to be a user here named Nyamka, also known as Pryanik, and he was the one who kept an eye on the Creature back then.

promotes rockabilly and the like

About half of the artists I listen to now, I first heard on his streams. Including the song that won the final Khurma contest last year.

not a single fan of Alexei Krupnik

And that's why I was wondering where I had seen that nickname before. But I was too lazy to Google it.