Sacred Haven of Debauchery

Because you should play the normal version, not the Russian version.

The Russian version comes as part of the installer. But generally, I install it out of habit.

There's also a God there (and God Eh).

And also, there's a mage named Blin, foresters named Lenin and Suk, and a dragon named GorMon. In one of the mods, I came across girls with the names Sale and That.

And what's going on there, who are these characters that ended up in the game? (=what addon is it?)

It's a survival map. And the characters are from Ageless Era (basically a collection of factions from different mods, with access to all of them from one era). But I personally recommend TCG, because it's the best era. War of Chaos is also interesting (Genetics is probably the best faction).